790  
FNUS55 KCYS 302036  
FWFCYS  
 
FIRE WEATHER PLANNING FORECAST FOR SOUTHEAST WYOMING/WESTERN NEBRASKA  
NATIONAL WEATHER SERVICE CHEYENNE WY  
236 PM MDT SAT MAY 30 2020  
   
DISCUSSION
 
 
UPPER LEVEL HIGH PRESSURE EXPECTED TO REMAIN OVER THE AREA THROUGH  
THE UPCOMING WORK WEEK. WE WILL SEE THUNDERSTORMS UNDER THIS HIGH  
PRESSURE HOWEVER...AS MOISTURE FROM THE SOUTHWEST GETS PULLED  
NORTH INTO THE AREA. THE ONE EXCEPTION WILL BE CARBON COUNTY WHERE  
VERY DRY AIR WILL STAY IN PLACE WITH VERY DRY AFTERNOON HUMIDITY  
WITH FAIR TO POOR OVERNIGHT RECOVERIES. ELEVATED TO LOCALLY  
CRITICAL FIRE WEATHER CONDITIONS VERY POSSIBLE EACH DAY FOR FWZS  
303...304 AND 306 AS AFTERNOON WINDS GUST TO 30-35 MPH. LOOKING  
AT DAILY CHANCES FOR SHOWERS AND STORMS FOR ALBANY COUNTY AND  
POINTS EAST THROUGH THE UPCOMING WEEK.  
 
WYZ301-311200-  
NIOBRARA/LOWER ELEVATIONS OF CONVERSE/THUNDER BASIN NATIONAL  
GRASSLAND-  
236 PM MDT SAT MAY 30 2020  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 2400, THEN MOSTLY CLOUDY.  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS  
UNTIL 2100CHANCE OF SHOWERS AND THUNDERSTORMS  
AFTER 2100 UNTIL 2200, THEN SLIGHT CHANCE OF  
SHOWERS AND THUNDERSTORMS UNTIL 0500.  
MIN TEMPERATURE.....54-59.  
24 HR TREND......2 DEGREES WARMER.  
MAX HUMIDITY........88-94 PERCENT.  
24 HR TREND......8 PERCENT WETTER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......SOUTHEAST 10 TO 15 MPH. GUSTS UP TO 35 MPH  
DECREASING TO 20 MPH AFTER MIDNIGHT.  
LAL.................3 UNTIL 2100, THEN 2 UNTIL 2400, THEN 1.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....SOUTHEAST AROUND 25 MPH BECOMING SOUTH AROUND  
15 MPH AFTER MIDNIGHT.  
MIXING HEIGHT.......1300-2800 FT AGL.  
SMOKE DISPERSAL.....POOR TO FAIR (22100-53100 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SUNDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 1500, THEN MOSTLY SUNNY.  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS  
AFTER 1300.  
MAX TEMPERATURE.....88-93.  
24 HR TREND......11 DEGREES WARMER.  
MIN HUMIDITY........15-21 PERCENT.  
24 HR TREND......33 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST AROUND 10 MPH WITH HIGHER GUSTS.  
LAL.................1 UNTIL 1500, THEN 2.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.  
MIXING HEIGHT.......1400-2200 FT AGL INCREASING TO 11900-13900 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (21700 KNOT-FT) INCREASING TO EXCELLENT  
(215400 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SUNDAY NIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MIN TEMPERATURE.....56-61.  
24 HR TREND......3 DEGREES WARMER.  
MAX HUMIDITY........56-62 PERCENT.  
24 HR TREND......37 PERCENT DRIER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......SOUTHWEST 5 TO 10 MPH. GUSTS UP TO 25 MPH  
DECREASING TO 15 MPH AFTER MIDNIGHT.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST 15 TO 20 MPH.  
MIXING HEIGHT.......1900-3900 FT AGL DECREASING TO 200-1500 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....POOR TO FAIR (9400-41500 KNOT-FT).  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1500, THEN PARTLY CLOUDY.  
MAX TEMPERATURE.....90-95.  
24 HR TREND......1 DEGREE WARMER.  
MIN HUMIDITY........11-17 PERCENT.  
24 HR TREND......3 PERCENT DRIER.  
20-FOOT WINDS.......WEST AROUND 5 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH SHIFTING TO THE  
SOUTHWEST IN THE AFTERNOON.  
MIXING HEIGHT.......1900-3200 FT AGL INCREASING TO 12000-13500 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (25900 KNOT-FT) INCREASING TO VERY GOOD  
(133700 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
TUESDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 50S. HIGHS IN THE UPPER 80S.  
WEST WINDS AROUND 10 MPH.    
WEDNESDAY
 
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS IN THE MID 50S. HIGHS IN THE LOWER 80S. WINDS GENERALLY LESS  
THAN 10 MPH.    
THURSDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 50S. HIGHS IN THE MID 80S.  
SOUTHWEST WINDS AROUND 10 MPH.    
FRIDAY
 
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE MID 50S. HIGHS IN THE LOWER 80S.    
SATURDAY
 
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS IN THE MID 50S. HIGHS IN THE LOWER 80S.  
 

 
 
WYZ302-311200-  
NORTH LARAMIE RANGE/MEDICINE BOW NF-  
236 PM MDT SAT MAY 30 2020  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 2400, THEN MOSTLY CLOUDY  
UNTIL 0300, THEN PARTLY CLOUDY. CHANCE OF  
SHOWERS AND THUNDERSTORMS UNTIL 0400, THEN  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS  
UNTIL 0500.  
MIN TEMPERATURE.....52-57.  
24 HR TREND......2 DEGREES WARMER.  
MAX HUMIDITY........78-84 PERCENT.  
24 HR TREND......4 PERCENT WETTER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......SOUTH 5 TO 10 MPH. GUSTS UP TO 30 MPH  
DECREASING TO 20 MPH AFTER MIDNIGHT.  
LAL.................3 UNTIL 2100, THEN 2 UNTIL 2400, THEN 1.  
CHC OF WETTING RAIN.15 PERCENT.  
TRANSPORT WINDS.....SOUTHEAST AROUND 20 MPH SHIFTING TO THE  
SOUTHWEST AFTER MIDNIGHT.  
MIXING HEIGHT.......1000-2600 FT AGL.  
SMOKE DISPERSAL.....POOR (17300-39200 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SUNDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 0900, THEN MOSTLY SUNNY  
UNTIL 1200, THEN PARTLY CLOUDY. SLIGHT CHANCE  
OF SHOWERS AND THUNDERSTORMS AFTER 1300.  
MAX TEMPERATURE.....76-84.  
24 HR TREND......8 DEGREES WARMER.  
MIN HUMIDITY........16-22 PERCENT.  
24 HR TREND......22 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST 10 TO 15 MPH WITH HIGHER GUSTS.  
LAL.................1 UNTIL 1200, THEN 2.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST 20 TO 25 MPH.  
MIXING HEIGHT.......1900-2800 FT AGL INCREASING TO 13000-14600 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (36500 KNOT-FT) INCREASING TO EXCELLENT  
(268200 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SUNDAY NIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS UNTIL 2400.  
MIN TEMPERATURE.....53-61.  
24 HR TREND......4 DEGREES COOLER.  
MAX HUMIDITY........50-56 PERCENT.  
24 HR TREND......34 PERCENT DRIER.  
HUMIDITY RECOVERY...POOR.  
20-FOOT WINDS.......SOUTHWEST AROUND 10 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST 15 TO 20 MPH.  
MIXING HEIGHT.......5300-7300 FT AGL DECREASING TO 900-2300 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....VERY GOOD (108500 KNOT-FT) DECREASING TO POOR  
(18300 KNOT-FT) AFTER MIDNIGHT.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1500, THEN PARTLY CLOUDY.  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS  
AFTER 1200.  
MAX TEMPERATURE.....80-88.  
24 HR TREND......4 DEGREES WARMER.  
MIN HUMIDITY........13-19 PERCENT.  
24 HR TREND......3 PERCENT DRIER.  
20-FOOT WINDS.......WEST AROUND 10 MPH AND GUSTY.  
LAL.................1 UNTIL 1500, THEN 2.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......4600-6600 FT AGL INCREASING TO 13500-14600 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD (75700 KNOT-FT) INCREASING TO EXCELLENT  
(185000 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
TUESDAY
 
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 50S. HIGHS AROUND 80. WEST WINDS  
AROUND 10 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER 70S.  
WEST WINDS AROUND 10 MPH.    
THURSDAY
 
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER 70S.  
SOUTHWEST WINDS AROUND 10 MPH.    
FRIDAY
 
MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS IN THE LOWER 50S. HIGHS IN THE MID 70S.    
SATURDAY
 
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS IN THE LOWER 50S. HIGHS IN THE MID 70S.  
 

 
 
WYZ303-311200-  
CENTRAL AND NORTHERN CARBON/FERRIS-SEMINOE-SHIRLEY MOUNTAINS-  
236 PM MDT SAT MAY 30 2020  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 0300, THEN PARTLY CLOUDY.  
CHANCE OF SHOWERS AND THUNDERSTORMS UNTIL 0200,  
THEN SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS.  
MIN TEMPERATURE.....52-57.  
24 HR TREND......UNCHANGED.  
MAX HUMIDITY........70-76 PERCENT.  
24 HR TREND......6 PERCENT WETTER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......SOUTH 5 TO 10 MPH. GUSTS UP TO 25 MPH  
DECREASING TO 15 MPH AFTER MIDNIGHT.  
LAL.................3 UNTIL 2100, THEN 2 UNTIL 2400, THEN 1.  
CHC OF WETTING RAIN.10 PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 20 MPH DECREASING TO AROUND 10 MPH  
AFTER MIDNIGHT.  
MIXING HEIGHT.......2300-4300 FT AGL DECREASING TO 1100-1900 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....POOR TO FAIR (11900-51700 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SUNDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 1200, THEN MOSTLY SUNNY  
UNTIL 1500, THEN PARTLY CLOUDY. SLIGHT CHANCE  
OF SHOWERS AND THUNDERSTORMS UNTIL 0900. SLIGHT  
CHANCE OF SHOWERS AND THUNDERSTORMS AFTER 1300.  
MAX TEMPERATURE.....78-84.  
24 HR TREND......1 DEGREE WARMER.  
MIN HUMIDITY........14-20 PERCENT.  
24 HR TREND......3 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST AROUND 10 MPH INCREASING TO AROUND 20  
MPH IN THE AFTERNOON. GUSTS UP TO 35 MPH.  
LAL.................1 UNTIL 1500, THEN 2.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH INCREASING TO AROUND 30  
MPH IN THE AFTERNOON.  
MIXING HEIGHT.......2300-4300 FT AGL INCREASING TO 12800-14400 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....FAIR (57500 KNOT-FT) INCREASING TO EXCELLENT  
(359100 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SUNDAY NIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MIN TEMPERATURE.....51-56.  
24 HR TREND......1 DEGREE COOLER.  
MAX HUMIDITY........60-66 PERCENT.  
24 HR TREND......10 PERCENT DRIER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......SOUTHWEST 5 TO 10 MPH. GUSTS UP TO 30 MPH  
DECREASING TO 15 MPH AFTER MIDNIGHT.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH DECREASING TO AROUND 10  
MPH AFTER MIDNIGHT.  
MIXING HEIGHT.......6400-8400 FT AGL DECREASING TO 700-1500 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....VERY GOOD (122500 KNOT-FT) DECREASING TO POOR  
(10600 KNOT-FT) AFTER MIDNIGHT.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1500, THEN PARTLY CLOUDY.  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS  
AFTER 1200.  
MAX TEMPERATURE.....81-87.  
24 HR TREND......2 DEGREES WARMER.  
MIN HUMIDITY........8-14 PERCENT.  
24 HR TREND......6 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST 10 TO 15 MPH WITH HIGHER GUSTS.  
LAL.................1 UNTIL 1500, THEN 2.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH.  
MIXING HEIGHT.......3300-5300 FT AGL INCREASING TO 13100-14300 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD (68400 KNOT-FT) INCREASING TO EXCELLENT  
(233000 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
TUESDAY
 
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE MID 50S. HIGHS IN THE LOWER 80S.  
SOUTHWEST WINDS AROUND 10 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER 70S.  
WEST WINDS AROUND 10 MPH.    
THURSDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS AROUND 80. SOUTHWEST  
WINDS AROUND 10 MPH.    
FRIDAY
 
MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS IN THE LOWER 50S. HIGHS IN THE MID 70S.    
SATURDAY
 
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS IN THE LOWER 50S. HIGHS IN THE MID 70S.  
 

 
 
WYZ304-311200-  
SOUTHWEST CARBON COUNTY-  
236 PM MDT SAT MAY 30 2020  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 0300, THEN PARTLY CLOUDY.  
CHANCE OF SHOWERS AND THUNDERSTORMS UNTIL 0100,  
THEN SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS.  
MIN TEMPERATURE.....50-55.  
24 HR TREND......UNCHANGED.  
MAX HUMIDITY........73-79 PERCENT.  
24 HR TREND......10 PERCENT WETTER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......SOUTHEAST 5 TO 10 MPH.  
LAL.................3 UNTIL 2100, THEN 1.  
CHC OF WETTING RAIN.10 PERCENT.  
TRANSPORT WINDS.....SOUTH 10 TO 15 MPH.  
MIXING HEIGHT.......1000-1600 FT AGL.  
SMOKE DISPERSAL.....POOR (10700-15400 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SUNDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 0900, THEN MOSTLY SUNNY  
UNTIL 1500, THEN PARTLY CLOUDY. SLIGHT CHANCE  
OF SHOWERS AND THUNDERSTORMS UNTIL 0900. SLIGHT  
CHANCE OF SHOWERS AND THUNDERSTORMS AFTER 1300.  
MAX TEMPERATURE.....80-85.  
24 HR TREND......2 DEGREES COOLER.  
MIN HUMIDITY........14-20 PERCENT.  
24 HR TREND......4 PERCENT DRIER.  
20-FOOT WINDS.......SOUTH AROUND 10 MPH INCREASING TO SOUTHWEST  
AROUND 20 MPH IN THE AFTERNOON. GUSTS UP TO 35  
MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 20 MPH INCREASING TO SOUTHWEST  
AROUND 30 MPH IN THE AFTERNOON.  
MIXING HEIGHT.......2300-3300 FT AGL INCREASING TO 13100-13800 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....FAIR (43900 KNOT-FT) INCREASING TO EXCELLENT  
(364700 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SUNDAY NIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MIN TEMPERATURE.....48-53.  
24 HR TREND......2 DEGREES COOLER.  
MAX HUMIDITY........66-72 PERCENT.  
24 HR TREND......10 PERCENT DRIER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......SOUTH 5 TO 10 MPH. GUSTS UP TO 30 MPH  
DECREASING TO 15 MPH AFTER MIDNIGHT.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH BECOMING SOUTH AROUND  
10 MPH AFTER MIDNIGHT.  
MIXING HEIGHT.......5700-7700 FT AGL DECREASING TO 600-1100 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....VERY GOOD (102600 KNOT-FT) DECREASING TO POOR  
(8300 KNOT-FT) AFTER MIDNIGHT.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1500, THEN PARTLY CLOUDY.  
MAX TEMPERATURE.....83-88.  
24 HR TREND......3 DEGREES WARMER.  
MIN HUMIDITY........8-14 PERCENT.  
24 HR TREND......6 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST 10 TO 15 MPH WITH HIGHER GUSTS.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH.  
MIXING HEIGHT.......2500-3700 FT AGL INCREASING TO 13300-13900 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....FAIR (50200 KNOT-FT) INCREASING TO EXCELLENT  
(233300 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
TUESDAY
 
MOSTLY CLOUDY. LOWS IN THE LOWER 50S. HIGHS IN THE  
LOWER 80S. SOUTHWEST WINDS AROUND 10 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS AROUND 80. WEST WINDS  
AROUND 10 MPH.    
THURSDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS AROUND 50. HIGHS IN THE LOWER 80S. SOUTHWEST  
WINDS AROUND 10 MPH.    
FRIDAY
 
MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS IN THE LOWER 50S. HIGHS IN THE MID 70S.    
SATURDAY
 
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 70S.  
 

 
 
WYZ305-311200-  
SIERRA MADRE RANGE/MEDICINE BOW NF-  
236 PM MDT SAT MAY 30 2020  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 0300, THEN PARTLY CLOUDY.  
CHANCE OF SHOWERS AND THUNDERSTORMS UNTIL 0100,  
THEN SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS.  
MIN TEMPERATURE.....47-52.  
24 HR TREND......2 DEGREES COOLER.  
MAX HUMIDITY........72-78 PERCENT.  
24 HR TREND......16 PERCENT WETTER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......SOUTH 5 TO 10 MPH.  
LAL.................3 UNTIL 2100, THEN 1.  
CHC OF WETTING RAIN.10 PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 15 MPH.  
MIXING HEIGHT.......1300-2000 FT AGL.  
SMOKE DISPERSAL.....POOR (17800-19900 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SUNDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 0900, THEN MOSTLY SUNNY  
UNTIL 1200, THEN PARTLY CLOUDY. SLIGHT CHANCE  
OF SHOWERS AND THUNDERSTORMS UNTIL 0900, THEN  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS  
AFTER 1300.  
MAX TEMPERATURE.....71-79.  
24 HR TREND......UNCHANGED.  
MIN HUMIDITY........23-29 PERCENT.  
24 HR TREND......2 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST 10 TO 15 MPH WITH HIGHER GUSTS.  
LAL.................1 UNTIL 1500, THEN 2.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH INCREASING TO AROUND 30  
MPH IN THE AFTERNOON.  
MIXING HEIGHT.......3000-3800 FT AGL INCREASING TO 11100-12800 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....FAIR (57200 KNOT-FT) INCREASING TO EXCELLENT  
(300900 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SUNDAY NIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MIN TEMPERATURE.....49-54.  
24 HR TREND......1 DEGREE WARMER.  
MAX HUMIDITY........57-63 PERCENT.  
24 HR TREND......14 PERCENT DRIER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......SOUTH 5 TO 10 MPH. GUSTS UP TO 25 MPH  
DECREASING TO 15 MPH AFTER MIDNIGHT.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......6300-8300 FT AGL DECREASING TO 900-1700 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....VERY GOOD (112500 KNOT-FT) DECREASING TO POOR  
(15700 KNOT-FT) AFTER MIDNIGHT.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1200, THEN PARTLY CLOUDY.  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS  
AFTER 1200.  
MAX TEMPERATURE.....72-82.  
24 HR TREND......3 DEGREES WARMER.  
MIN HUMIDITY........20-26 PERCENT.  
24 HR TREND......5 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST AROUND 10 MPH WITH HIGHER GUSTS.  
LAL.................1 UNTIL 1500, THEN 2.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.  
MIXING HEIGHT.......3400-4900 FT AGL INCREASING TO 11600-13000 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD (65100 KNOT-FT) INCREASING TO EXCELLENT  
(171400 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
TUESDAY
 
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS AROUND 50. HIGHS IN THE MID 70S. SOUTHWEST  
WINDS AROUND 5 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE LOWER 70S.  
WINDS GENERALLY LESS THAN 10 MPH.    
THURSDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE MID 70S.  
SOUTHWEST WINDS AROUND 10 MPH.    
FRIDAY
 
MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 60S.    
SATURDAY
 
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS IN THE MID 40S. HIGHS AROUND 70.  
 

 
 
WYZ306-311200-  
UPPER NORTH PLATTE RIVER BASIN-  
236 PM MDT SAT MAY 30 2020  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 0300, THEN PARTLY CLOUDY.  
CHANCE OF SHOWERS AND THUNDERSTORMS UNTIL 0100,  
THEN SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS.  
MIN TEMPERATURE.....50-55.  
24 HR TREND......1 DEGREE WARMER.  
MAX HUMIDITY........71-77 PERCENT.  
24 HR TREND......10 PERCENT WETTER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......SOUTH 5 TO 10 MPH.  
LAL.................3 UNTIL 2100, THEN 2 UNTIL 2400, THEN 1.  
CHC OF WETTING RAIN.10 PERCENT.  
TRANSPORT WINDS.....SOUTH 10 TO 15 MPH.  
MIXING HEIGHT.......1200-2400 FT AGL.  
SMOKE DISPERSAL.....POOR (13800-31100 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SUNDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 0900, THEN MOSTLY SUNNY  
UNTIL 1200, THEN PARTLY CLOUDY. SLIGHT CHANCE  
OF SHOWERS AND THUNDERSTORMS UNTIL 0900, THEN  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS  
AFTER 1300.  
MAX TEMPERATURE.....78-83.  
24 HR TREND......UNCHANGED.  
MIN HUMIDITY........17-23 PERCENT.  
24 HR TREND......2 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST 10 TO 15 MPH WITH HIGHER GUSTS.  
LAL.................1 UNTIL 1500, THEN 2.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 20 TO 25 MPH.  
MIXING HEIGHT.......3700-4300 FT AGL INCREASING TO 12900-13500 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....FAIR (59000 KNOT-FT) INCREASING TO EXCELLENT  
(312700 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SUNDAY NIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MIN TEMPERATURE.....49-54.  
24 HR TREND......4 DEGREES COOLER.  
MAX HUMIDITY........65-71 PERCENT.  
24 HR TREND......2 PERCENT DRIER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......SOUTH 5 TO 10 MPH. GUSTS UP TO 25 MPH  
DECREASING TO 15 MPH AFTER MIDNIGHT.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.  
MIXING HEIGHT.......3400-5400 FT AGL DECREASING TO 900-1400 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....POOR TO GOOD (11300-61000 KNOT-FT).  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1200, THEN PARTLY CLOUDY.  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS  
AFTER 1200.  
MAX TEMPERATURE.....79-85.  
24 HR TREND......5 DEGREES WARMER.  
MIN HUMIDITY........15-21 PERCENT.  
24 HR TREND......7 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST AROUND 10 MPH WITH HIGHER GUSTS.  
LAL.................1 UNTIL 1500, THEN 2.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......4700-5700 FT AGL INCREASING TO 13000-13600 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD (71400 KNOT-FT) INCREASING TO EXCELLENT  
(176400 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
TUESDAY
 
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS AROUND 80. SOUTHWEST  
WINDS AROUND 10 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS AROUND 50. HIGHS IN THE UPPER 70S. WINDS  
GENERALLY LESS THAN 10 MPH.    
THURSDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS AROUND 50. HIGHS IN THE UPPER 70S. SOUTHWEST  
WINDS AROUND 10 MPH.    
FRIDAY
 
MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS AROUND 50. HIGHS IN THE MID 70S.    
SATURDAY
 
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS IN THE UPPER 40S. HIGHS IN THE MID 70S.  
 

 
 
WYZ307-311200-  
SNOWY RANGE/MEDICINE BOW NF-  
236 PM MDT SAT MAY 30 2020  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 0300, THEN PARTLY CLOUDY.  
CHANCE OF SHOWERS AND THUNDERSTORMS UNTIL 2400,  
THEN SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS.  
MIN TEMPERATURE.....46-52.  
24 HR TREND......3 DEGREES COOLER.  
MAX HUMIDITY........72-78 PERCENT.  
24 HR TREND......5 PERCENT WETTER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......SOUTH 5 TO 10 MPH.  
LAL.................3 UNTIL 2100, THEN 2 UNTIL 2400, THEN 1.  
CHC OF WETTING RAIN.15 PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 15 MPH.  
MIXING HEIGHT.......1000-2400 FT AGL.  
SMOKE DISPERSAL.....POOR (19100-22400 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SUNDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS UNTIL 0900, THEN SLIGHT CHANCE OF  
SHOWERS AND THUNDERSTORMS AFTER 1300.  
MAX TEMPERATURE.....68-76.  
24 HR TREND......1 DEGREE COOLER.  
MIN HUMIDITY........22-28 PERCENT.  
24 HR TREND......2 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST 10 TO 15 MPH WITH HIGHER GUSTS.  
LAL.................1 UNTIL 1200, THEN 2 UNTIL 1500, THEN 3.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....WEST 20 TO 25 MPH.  
MIXING HEIGHT.......2400-4100 FT AGL INCREASING TO 11200-12900 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....FAIR (58100 KNOT-FT) INCREASING TO EXCELLENT  
(267300 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SUNDAY NIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MIN TEMPERATURE.....47-53.  
24 HR TREND......5 DEGREES WARMER.  
MAX HUMIDITY........59-65 PERCENT.  
24 HR TREND......12 PERCENT DRIER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......SOUTHWEST AROUND 10 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......5000-7000 FT AGL DECREASING TO 900-2700 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....GOOD (85500 KNOT-FT) DECREASING TO POOR (23000  
KNOT-FT) AFTER MIDNIGHT.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1200, THEN PARTLY CLOUDY.  
CHANCE OF SHOWERS AND THUNDERSTORMS AFTER 1200.  
MAX TEMPERATURE.....70-78.  
24 HR TREND......3 DEGREES WARMER.  
MIN HUMIDITY........21-27 PERCENT.  
24 HR TREND......UNCHANGED.  
20-FOOT WINDS.......SOUTHWEST AROUND 10 MPH WITH HIGHER GUSTS.  
LAL.................1 UNTIL 1200, THEN 2 UNTIL 1500, THEN 3.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.  
MIXING HEIGHT.......4300-6300 FT AGL INCREASING TO 12400-13900 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD (73900 KNOT-FT) INCREASING TO VERY GOOD  
(135000 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
TUESDAY
 
MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE LOWER 70S.  
SOUTHWEST WINDS AROUND 10 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE UPPER 60S. WINDS  
GENERALLY LESS THAN 10 MPH.    
THURSDAY
 
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 70S.  
SOUTHWEST WINDS AROUND 10 MPH.    
FRIDAY
 
MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS IN THE MID 40S. HIGHS IN THE UPPER 60S.    
SATURDAY
 
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE UPPER 60S.  
 

 
 
WYZ308-311200-  
LARAMIE VALLEY/SHIRLEY BASIN-  
236 PM MDT SAT MAY 30 2020  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 2400, THEN PARTLY CLOUDY.  
CHANCE OF SHOWERS AND THUNDERSTORMS UNTIL  
0400SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS  
AFTER 0400.  
MIN TEMPERATURE.....51-56.  
24 HR TREND......1 DEGREE WARMER.  
MAX HUMIDITY........77-83 PERCENT.  
24 HR TREND......10 PERCENT DRIER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......SOUTH 5 TO 10 MPH. GUSTS UP TO 25 MPH  
DECREASING TO 15 MPH AFTER MIDNIGHT.  
LAL.................3 UNTIL 2100, THEN 2 UNTIL 2400, THEN 1.  
CHC OF WETTING RAIN.10 PERCENT.  
TRANSPORT WINDS.....SOUTHEAST AROUND 20 MPH BECOMING SOUTH AROUND  
10 MPH AFTER MIDNIGHT.  
MIXING HEIGHT.......700-2600 FT AGL.  
SMOKE DISPERSAL.....POOR (7300-37600 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SUNDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS UNTIL 0900. SLIGHT CHANCE OF  
SHOWERS AND THUNDERSTORMS AFTER 1300.  
MAX TEMPERATURE.....79-84.  
24 HR TREND......4 DEGREES WARMER.  
MIN HUMIDITY........15-21 PERCENT.  
24 HR TREND......8 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST 10 TO 15 MPH WITH HIGHER GUSTS.  
LAL.................1 UNTIL 1200, THEN 2 UNTIL 1500, THEN 3.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....WEST 20 TO 25 MPH.  
MIXING HEIGHT.......2500-4500 FT AGL INCREASING TO 13400-14100 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....FAIR (53400 KNOT-FT) INCREASING TO EXCELLENT  
(288900 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SUNDAY NIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS UNTIL 2400.  
MIN TEMPERATURE.....49-54.  
24 HR TREND......1 DEGREE COOLER.  
MAX HUMIDITY........66-72 PERCENT.  
24 HR TREND......12 PERCENT DRIER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......SOUTHWEST 5 TO 10 MPH. GUSTS UP TO 30 MPH  
DECREASING TO 15 MPH AFTER MIDNIGHT.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.  
MIXING HEIGHT.......2600-4600 FT AGL DECREASING TO 400-1700 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....POOR TO FAIR (10700-51900 KNOT-FT).  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1200, THEN PARTLY CLOUDY.  
CHANCE OF SHOWERS AND THUNDERSTORMS AFTER 1200.  
MAX TEMPERATURE.....81-86.  
24 HR TREND......3 DEGREES WARMER.  
MIN HUMIDITY........12-18 PERCENT.  
24 HR TREND......6 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST AROUND 10 MPH WITH HIGHER GUSTS.  
LAL.................1 UNTIL 1200, THEN 2 UNTIL 1500, THEN 3.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......4100-6100 FT AGL INCREASING TO 13600-14400 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD (64300 KNOT-FT) INCREASING TO EXCELLENT  
(157700 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
TUESDAY
 
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS AROUND 80. SOUTHWEST  
WINDS AROUND 10 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS AROUND 50. HIGHS IN THE UPPER 70S. WINDS  
GENERALLY LESS THAN 10 MPH.    
THURSDAY
 
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS AROUND 50. HIGHS IN THE UPPER 70S. SOUTHWEST  
WINDS AROUND 10 MPH.    
FRIDAY
 
MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS AROUND 50. HIGHS IN THE MID 70S.    
SATURDAY
 
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE MID 70S.  
 

 
 
WYZ309-311200-  
SOUTH LARAMIE RANGE/MEDICINE BOW NF-  
236 PM MDT SAT MAY 30 2020  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 0300, THEN PARTLY CLOUDY.  
CHANCE OF SHOWERS AND THUNDERSTORMS UNTIL 2200,  
THEN SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS.  
MIN TEMPERATURE.....51-56.  
24 HR TREND......1 DEGREE COOLER.  
MAX HUMIDITY........80-86 PERCENT.  
24 HR TREND......14 PERCENT WETTER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......SOUTH 5 TO 10 MPH AND GUSTY.  
LAL.................3 UNTIL 2100, THEN 2 UNTIL 2400, THEN 1.  
CHC OF WETTING RAIN.10 PERCENT.  
TRANSPORT WINDS.....SOUTHEAST AROUND 20 MPH SHIFTING TO THE  
SOUTHWEST AFTER MIDNIGHT.  
MIXING HEIGHT.......2200-3200 FT AGL DECREASING TO 600-1200 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....POOR TO FAIR (10100-42200 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SUNDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS UNTIL 0900. CHANCE OF SHOWERS AND  
THUNDERSTORMS AFTER 1300.  
MAX TEMPERATURE.....79-87.  
24 HR TREND......9 DEGREES WARMER.  
MIN HUMIDITY........16-22 PERCENT.  
24 HR TREND......22 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST AROUND 10 MPH WITH HIGHER GUSTS.  
LAL.................1 UNTIL 1200, THEN 3.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....WEST 15 TO 20 MPH.  
MIXING HEIGHT.......2800-4600 FT AGL INCREASING TO 13300-14900 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....FAIR (51200 KNOT-FT) INCREASING TO EXCELLENT  
(226400 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SUNDAY NIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS UNTIL 2400.  
MIN TEMPERATURE.....53-59.  
24 HR TREND......3 DEGREES WARMER.  
MAX HUMIDITY........58-64 PERCENT.  
24 HR TREND......21 PERCENT DRIER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......SOUTHWEST AROUND 10 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 15 MPH.  
MIXING HEIGHT.......2400-4400 FT AGL DECREASING TO 500-2100 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....POOR TO FAIR (16600-41400 KNOT-FT).  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1200, THEN PARTLY CLOUDY.  
CHANCE OF SHOWERS AND THUNDERSTORMS AFTER 1200.  
MAX TEMPERATURE.....81-89.  
24 HR TREND......2 DEGREES WARMER.  
MIN HUMIDITY........14-20 PERCENT.  
24 HR TREND......3 PERCENT DRIER.  
20-FOOT WINDS.......WEST AROUND 10 MPH AND GUSTY.  
LAL.................1 UNTIL 1200, THEN 2 UNTIL 1500, THEN 3.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.  
MIXING HEIGHT.......4800-6800 FT AGL INCREASING TO 12200-14200 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD TO VERY GOOD (68800-108500 KNOT-FT).  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
TUESDAY
 
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 50S. HIGHS IN THE LOWER 80S.  
WEST WINDS AROUND 10 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER 70S.  
WEST WINDS AROUND 10 MPH.    
THURSDAY
 
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS AROUND 80. SOUTHWEST  
WINDS AROUND 10 MPH.    
FRIDAY
 
MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS IN THE LOWER 50S. HIGHS IN THE UPPER 70S.    
SATURDAY
 
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER 70S.  
 

 
 
WYZ310-311200-  
PLATTE/GOSHEN/CENTRAL AND EASTERN LARAMIE-  
236 PM MDT SAT MAY 30 2020  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS UNTIL 0500.  
MIN TEMPERATURE.....53-58.  
24 HR TREND......3 DEGREES WARMER.  
MAX HUMIDITY........90-96 PERCENT.  
24 HR TREND......8 PERCENT WETTER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......SOUTHEAST AROUND 10 MPH. GUSTS UP TO 30 MPH  
DECREASING TO 20 MPH AFTER MIDNIGHT.  
LAL.................3 UNTIL 2100, THEN 2 UNTIL 2400, THEN 1.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....SOUTHEAST 15 TO 20 MPH.  
MIXING HEIGHT.......900-2900 FT AGL.  
SMOKE DISPERSAL.....POOR TO FAIR (12000-47800 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SUNDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF SHOWERS AND  
THUNDERSTORMS AFTER 1300.  
MAX TEMPERATURE.....85-91.  
24 HR TREND......12 DEGREES WARMER.  
MIN HUMIDITY........21-27 PERCENT.  
24 HR TREND......16 PERCENT DRIER.  
20-FOOT WINDS.......SOUTH 5 TO 10 MPH AND GUSTY.  
LAL.................1 UNTIL 1200, THEN 3.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.  
MIXING HEIGHT.......1500-2400 FT AGL INCREASING TO 11400-13400 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (18500 KNOT-FT) INCREASING TO VERY GOOD  
(146200 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SUNDAY NIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS UNTIL 2400.  
MIN TEMPERATURE.....56-61.  
24 HR TREND......2 DEGREES WARMER.  
MAX HUMIDITY........64-70 PERCENT.  
24 HR TREND......30 PERCENT DRIER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......SOUTHWEST 5 TO 10 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.  
MIXING HEIGHT.......1300-3300 FT AGL DECREASING TO 300-1200 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....POOR (8600-32900 KNOT-FT).  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1200, THEN PARTLY CLOUDY.  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS  
AFTER 1200.  
MAX TEMPERATURE.....88-94.  
24 HR TREND......3 DEGREES COOLER.  
MIN HUMIDITY........14-20 PERCENT.  
24 HR TREND......12 PERCENT DRIER.  
20-FOOT WINDS.......NORTHWEST AROUND 5 MPH SHIFTING TO THE  
SOUTHWEST IN THE AFTERNOON. GUSTS UP TO 15 MPH.  
LAL.................1 UNTIL 1200, THEN 2 UNTIL 1500, THEN 3.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH SHIFTING TO THE  
SOUTHWEST IN THE AFTERNOON.  
MIXING HEIGHT.......2000-4000 FT AGL INCREASING TO 13500-14700 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (31600 KNOT-FT) INCREASING TO VERY GOOD  
(109000 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
TUESDAY
 
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS AROUND 60. HIGHS IN THE UPPER 80S. WEST WINDS  
AROUND 5 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE MID 50S. HIGHS IN THE LOWER 80S. WINDS  
GENERALLY LESS THAN 10 MPH.    
THURSDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE MID 50S. HIGHS IN THE MID 80S. WINDS  
GENERALLY LESS THAN 10 MPH.    
FRIDAY
 
MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS IN THE MID 50S. HIGHS IN THE LOWER 80S.    
SATURDAY
 
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS IN THE MID 50S. HIGHS IN THE MID 80S.  
 

 
 
NEZ311-311200-  
PINE RIDGE/NEBRASKA NATIONAL FOREST/OGLALA NATIONAL GRASSLANDS-  
236 PM MDT SAT MAY 30 2020  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 2400, THEN MOSTLY CLOUDY.  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS  
AFTER 0300 UNTIL 0400.  
MIN TEMPERATURE.....54-59.  
24 HR TREND......1 DEGREE WARMER.  
MAX HUMIDITY........88-94 PERCENT.  
24 HR TREND......11 PERCENT WETTER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......SOUTHEAST AROUND 10 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHEAST 15 TO 20 MPH.  
MIXING HEIGHT.......1100-2500 FT AGL.  
SMOKE DISPERSAL.....POOR (20100-34800 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SUNDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 1200, THEN MOSTLY SUNNY.  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS  
AFTER 1300.  
MAX TEMPERATURE.....87-92.  
24 HR TREND......13 DEGREES WARMER.  
MIN HUMIDITY........26-32 PERCENT.  
24 HR TREND......15 PERCENT DRIER.  
20-FOOT WINDS.......SOUTH AROUND 10 MPH AND GUSTY.  
LAL.................1 UNTIL 1500, THEN 2.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 15 MPH.  
MIXING HEIGHT.......1300-2100 FT AGL INCREASING TO 5900-7900 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (23000 KNOT-FT) INCREASING TO GOOD (78000  
KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SUNDAY NIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MIN TEMPERATURE.....59-64.  
24 HR TREND......6 DEGREES WARMER.  
MAX HUMIDITY........61-67 PERCENT.  
24 HR TREND......33 PERCENT DRIER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......SOUTHWEST AROUND 10 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 20 MPH SHIFTING TO THE SOUTHWEST  
AFTER MIDNIGHT.  
MIXING HEIGHT.......300-1100 FT AGL.  
SMOKE DISPERSAL.....POOR (7600-14300 KNOT-FT).  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1500, THEN PARTLY CLOUDY.  
MAX TEMPERATURE.....90-95.  
24 HR TREND......4 DEGREES WARMER.  
MIN HUMIDITY........17-23 PERCENT.  
24 HR TREND......11 PERCENT DRIER.  
20-FOOT WINDS.......NORTHWEST AROUND 5 MPH SHIFTING TO THE  
NORTHEAST IN THE AFTERNOON. GUSTS UP TO 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST 10 TO 15 MPH.  
MIXING HEIGHT.......1100-1700 FT AGL INCREASING TO 9700-11700 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (15500 KNOT-FT) INCREASING TO GOOD (68000  
KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
TUESDAY
 
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE LOWER 60S. HIGHS IN THE UPPER 80S.  
WEST WINDS AROUND 5 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS IN THE UPPER 50S. HIGHS IN THE LOWER 80S. WINDS GENERALLY  
LESS THAN 10 MPH.    
THURSDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 50S. HIGHS IN THE UPPER 80S.  
WINDS GENERALLY LESS THAN 10 MPH.    
FRIDAY
 
MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS IN THE UPPER 50S. HIGHS IN THE MID 80S.    
SATURDAY
 
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS IN THE UPPER 50S. HIGHS IN THE MID 80S.  
 

 
 
NEZ312-311200-  
BOX BUTTE/SOUTH SIOUX-  
236 PM MDT SAT MAY 30 2020  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 2400, THEN MOSTLY CLOUDY.  
MIN TEMPERATURE.....54-59.  
24 HR TREND......2 DEGREES WARMER.  
MAX HUMIDITY........90-96 PERCENT.  
24 HR TREND......7 PERCENT WETTER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......SOUTHEAST 10 TO 15 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHEAST 15 TO 20 MPH.  
MIXING HEIGHT.......900-2200 FT AGL.  
SMOKE DISPERSAL.....POOR (14200-32200 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SUNDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 0900, THEN PARTLY CLOUDY  
UNTIL 1200, THEN MOSTLY SUNNY UNTIL 1500, THEN  
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS AFTER 1300.  
MAX TEMPERATURE.....86-91.  
24 HR TREND......12 DEGREES WARMER.  
MIN HUMIDITY........25-31 PERCENT.  
24 HR TREND......14 PERCENT DRIER.  
20-FOOT WINDS.......SOUTH AROUND 10 MPH.  
LAL.................1 UNTIL 1500, THEN 2.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 15 MPH.  
MIXING HEIGHT.......1400-1900 FT AGL INCREASING TO 5900-7900 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (21000 KNOT-FT) INCREASING TO GOOD (71700  
KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SUNDAY NIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MIN TEMPERATURE.....57-62.  
24 HR TREND......4 DEGREES WARMER.  
MAX HUMIDITY........67-73 PERCENT.  
24 HR TREND......24 PERCENT DRIER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......SOUTH AROUND 10 MPH SHIFTING TO THE SOUTHWEST  
AFTER MIDNIGHT.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 20 MPH SHIFTING TO THE SOUTHWEST  
AFTER MIDNIGHT.  
MIXING HEIGHT.......200-1000 FT AGL.  
SMOKE DISPERSAL.....POOR (5600-12200 KNOT-FT).  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1500, THEN PARTLY CLOUDY.  
MAX TEMPERATURE.....91-96.  
24 HR TREND......4 DEGREES WARMER.  
MIN HUMIDITY........15-21 PERCENT.  
24 HR TREND......12 PERCENT DRIER.  
20-FOOT WINDS.......NORTHWEST AROUND 5 MPH SHIFTING TO THE EAST IN  
THE AFTERNOON. GUSTS UP TO 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH SHIFTING TO THE  
SOUTHWEST IN THE AFTERNOON.  
MIXING HEIGHT.......900-1400 FT AGL INCREASING TO 12800-14600 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (11400 KNOT-FT) INCREASING TO GOOD (76300  
KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
TUESDAY
 
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE LOWER 60S. HIGHS IN THE UPPER 80S.  
WEST WINDS AROUND 5 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE MID 50S. HIGHS IN THE LOWER 80S. WINDS  
GENERALLY LESS THAN 10 MPH.    
THURSDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 50S. HIGHS IN THE UPPER 80S.  
SOUTH WINDS AROUND 10 MPH.    
FRIDAY
 
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 50S. HIGHS IN THE MID 80S.    
SATURDAY
 
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.  
LOWS IN THE UPPER 50S. HIGHS IN THE MID 80S.  
 

 
 
NEZ313-311200-  
SCOTTS BLUFF NATIONAL MONUMENT/WILDCAT HILLS-  
236 PM MDT SAT MAY 30 2020  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS UNTIL 2000.  
MIN TEMPERATURE.....54-59.  
24 HR TREND......3 DEGREES WARMER.  
MAX HUMIDITY........89-95 PERCENT.  
24 HR TREND......10 PERCENT WETTER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......SOUTHEAST AROUND 10 MPH AND GUSTY.  
LAL.................2 UNTIL 2400, THEN 1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHEAST AROUND 20 MPH DECREASING TO AROUND 10  
MPH AFTER MIDNIGHT.  
MIXING HEIGHT.......1100-2400 FT AGL.  
SMOKE DISPERSAL.....POOR (14700-37500 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SUNDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 0900, THEN PARTLY CLOUDY  
UNTIL 1200, THEN MOSTLY SUNNY UNTIL 1500, THEN  
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS AFTER 1300.  
MAX TEMPERATURE.....86-91.  
24 HR TREND......11 DEGREES WARMER.  
MIN HUMIDITY........25-31 PERCENT.  
24 HR TREND......15 PERCENT DRIER.  
20-FOOT WINDS.......SOUTH 5 TO 10 MPH.  
LAL.................1 UNTIL 1200, THEN 2 UNTIL 1500, THEN 3.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.  
MIXING HEIGHT.......1800-2300 FT AGL INCREASING TO 7200-9200 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (21700 KNOT-FT) INCREASING TO GOOD (81300  
KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SUNDAY NIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 2100, THEN MOSTLY CLOUDY  
UNTIL 2400, THEN PARTLY CLOUDY. SLIGHT CHANCE  
OF SHOWERS AND THUNDERSTORMS UNTIL 2400.  
MIN TEMPERATURE.....57-62.  
24 HR TREND......4 DEGREES WARMER.  
MAX HUMIDITY........70-76 PERCENT.  
24 HR TREND......20 PERCENT DRIER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......SOUTH AROUND 10 MPH SHIFTING TO THE SOUTHWEST  
AFTER MIDNIGHT.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 15 MPH SHIFTING TO THE WEST AFTER  
MIDNIGHT.  
MIXING HEIGHT.......1600-3600 FT AGL DECREASING TO 300-800 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....POOR (6900-37400 KNOT-FT).  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1500, THEN PARTLY CLOUDY.  
MAX TEMPERATURE.....91-96.  
24 HR TREND......4 DEGREES WARMER.  
MIN HUMIDITY........16-22 PERCENT.  
24 HR TREND......9 PERCENT DRIER.  
20-FOOT WINDS.......NORTHWEST AROUND 5 MPH SHIFTING TO THE  
NORTHEAST IN THE AFTERNOON. GUSTS UP TO 15 MPH.  
LAL.................1 UNTIL 1500, THEN 2.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH SHIFTING TO THE EAST IN  
THE AFTERNOON.  
MIXING HEIGHT.......800-1500 FT AGL INCREASING TO 14400-14900 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (10500 KNOT-FT) INCREASING TO GOOD (66300  
KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
TUESDAY
 
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS AROUND 60. HIGHS IN THE UPPER 80S. WEST WINDS  
AROUND 5 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE MID 50S. HIGHS IN THE LOWER 80S. WINDS  
GENERALLY LESS THAN 10 MPH.    
THURSDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE MID 50S. HIGHS IN THE UPPER 80S. SOUTH  
WINDS AROUND 10 MPH.    
FRIDAY
 
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 50S. HIGHS IN THE MID 80S.    
SATURDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 50S. HIGHS IN THE MID 80S.  
 

 
 
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