696  
FNUS55 KCYS 222009  
FWFCYS  
 
FIRE WEATHER PLANNING FORECAST FOR SOUTHEAST WYOMING/WESTERN NEBRASKA  
NATIONAL WEATHER SERVICE CHEYENNE WY  
209 PM MDT FRI OCT 22 2021  
   
DISCUSSION
 
 
A WEAK WEATHER DISTURBANCE WILL MOVE ACROSS THE DISTRICT SATURDAY  
NIGHT, BRINGING A CHANCE OF RAIN OR SNOW TO SOME LOCATIONS. SUNDAY  
WILL BE SLIGHTLY COOLER AND DRY. RIDGING ALOFT WILL BRING DRY AND  
WARMER WEATHER FOR MONDAY, BEFORE ANOTHER STRONGER WEATHER DISTURBANCE  
BRINGS MORE WIDESPREAD RAIN AND SNOW FOR MONDAY NIGHT AND TUESDAY,  
ALONG WITH COOLER TEMPERATURES. WINDY AND DRY WEATHER WITH A WARMING  
TREND WILL PREVAIL FOR WEDNESDAY THROUGH FRIDAY.  
 
WYZ301-231015-  
NIOBRARA/LOWER ELEVATIONS OF CONVERSE/THUNDER BASIN NATIONAL  
GRASSLAND-  
209 PM MDT FRI OCT 22 2021  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MIN TEMPERATURE.....36-41.  
24 HR TREND......3 DEGREES COOLER.  
MAX HUMIDITY........80-86 PERCENT.  
24 HR TREND......7 PERCENT DRIER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......SOUTH AROUND 10 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH 15 TO 20 MPH.  
MIXING HEIGHT.......400-1100 FT AGL.  
SMOKE DISPERSAL.....POOR (8700-9000 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SATURDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 1200, THEN MOSTLY CLOUDY.  
MAX TEMPERATURE.....58-63.  
24 HR TREND......4 DEGREES COOLER.  
MIN HUMIDITY........31-37 PERCENT.  
24 HR TREND......1 PERCENT WETTER.  
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.......600 FT AGL INCREASING TO 4400-6400 FT AGL IN  
THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (10200 KNOT-FT) INCREASING TO GOOD (88700  
KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN.  
MIN TEMPERATURE.....35-40.  
24 HR TREND......UNCHANGED.  
MAX HUMIDITY........94-100 PERCENT.  
24 HR TREND......21 PERCENT WETTER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......WEST 5 TO 10 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....WEST 10 TO 15 MPH.  
MIXING HEIGHT.......900-2900 FT AGL.  
SMOKE DISPERSAL.....POOR (13600-27100 KNOT-FT).  
HAINES INDEX........2 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.  
MAX TEMPERATURE.....53-58.  
24 HR TREND......5 DEGREES COOLER.  
MIN HUMIDITY........38-44 PERCENT.  
24 HR TREND......7 PERCENT WETTER.  
20-FOOT WINDS.......WEST AROUND 10 MPH WITH HIGHER GUSTS.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST 15 TO 20 MPH.  
MIXING HEIGHT.......2100-2900 FT AGL INCREASING TO 5300-6200 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....FAIR TO GOOD (41400-82500 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
MONDAY
 
WARMER. PARTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN  
THE UPPER 60S. SOUTH WINDS AROUND 10 MPH.    
TUESDAY
 
COOLER. MOSTLY CLOUDY WITH SCATTERED SHOWERS. LOWS IN  
THE UPPER 30S. HIGHS IN THE LOWER 50S. WEST WINDS AROUND 10 MPH.    
WEDNESDAY
 
MOSTLY CLEAR. ISOLATED SHOWERS. LOWS IN THE LOWER  
30S. HIGHS IN THE LOWER 50S. WEST WINDS AROUND 15 MPH.    
THURSDAY
 
MOSTLY CLEAR. LOWS IN THE LOWER 30S. HIGHS IN THE MID  
50S.    
FRIDAY
 
MOSTLY CLEAR. LOWS IN THE LOWER 30S. HIGHS IN THE UPPER  
50S.  
 

 
 
WYZ302-231015-  
NORTH LARAMIE RANGE/MEDICINE BOW NF-  
209 PM MDT FRI OCT 22 2021  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MIN TEMPERATURE.....36-44.  
24 HR TREND......7 DEGREES COOLER.  
MAX HUMIDITY........54-60 PERCENT.  
24 HR TREND......18 PERCENT DRIER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......SOUTHWEST 10 TO 15 MPH WITH GUSTS TO AROUND 35  
MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH INCREASING TO AROUND 30  
MPH AFTER MIDNIGHT.  
MIXING HEIGHT.......500-1700 FT AGL.  
SMOKE DISPERSAL.....POOR (17800-17900 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SATURDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY.  
MAX TEMPERATURE.....49-57.  
24 HR TREND......8 DEGREES COOLER.  
MIN HUMIDITY........32-38 PERCENT.  
24 HR TREND......5 PERCENT WETTER.  
20-FOOT WINDS.......SOUTHWEST AROUND 15 MPH WITH HIGHER GUSTS.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 25 MPH.  
MIXING HEIGHT.......600-1100 FT AGL INCREASING TO 7500-9000 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (16900 KNOT-FT) INCREASING TO EXCELLENT  
(164200 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN AND SNOW.  
MIN TEMPERATURE.....31-37.  
24 HR TREND......2 DEGREES COOLER.  
MAX HUMIDITY........88-94 PERCENT.  
24 HR TREND......48 PERCENT WETTER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......WEST AROUND 15 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....WEST 25 TO 30 MPH.  
MIXING HEIGHT.......1500-2600 FT AGL.  
SMOKE DISPERSAL.....FAIR (41300-52300 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.  
MAX TEMPERATURE.....43-51.  
24 HR TREND......5 DEGREES COOLER.  
MIN HUMIDITY........40-46 PERCENT.  
24 HR TREND......11 PERCENT WETTER.  
20-FOOT WINDS.......WEST AROUND 15 MPH WITH GUSTS TO AROUND 35 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 25 MPH.  
MIXING HEIGHT.......3200-5200 FT AGL.  
SMOKE DISPERSAL.....GOOD (70400-96600 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
MONDAY
 
WARMER. PARTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN  
THE LOWER 60S. SOUTHWEST WINDS AROUND 15 MPH.    
TUESDAY
 
COLDER. PARTLY CLOUDY WITH SCATTERED SHOWERS AND SNOW  
SHOWERS. LOWS IN THE MID 30S. HIGHS IN THE MID 40S. SOUTHWEST  
WINDS AROUND 15 MPH.    
WEDNESDAY
 
MOSTLY CLEAR WITH ISOLATED SHOWERS AND SNOW SHOWERS.  
LOWS IN THE LOWER 30S. HIGHS IN THE MID 40S. WEST WINDS AROUND  
15 MPH.    
THURSDAY
 
MOSTLY CLEAR. LOWS IN THE LOWER 30S. HIGHS IN THE  
UPPER 40S.    
FRIDAY
 
MOSTLY CLEAR. LOWS IN THE MID 30S. HIGHS AROUND 50.  
 

 
 
WYZ303-231015-  
CENTRAL AND NORTHERN CARBON/FERRIS-SEMINOE-SHIRLEY MOUNTAINS-  
209 PM MDT FRI OCT 22 2021  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MIN TEMPERATURE.....36-41.  
24 HR TREND......2 DEGREES WARMER.  
MAX HUMIDITY........55-61 PERCENT.  
24 HR TREND......3 PERCENT DRIER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......SOUTHWEST AROUND 15 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 20 TO 25 MPH.  
MIXING HEIGHT.......500-1700 FT AGL.  
SMOKE DISPERSAL.....POOR (16400-24900 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SATURDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 0900, THEN MOSTLY CLOUDY.  
MAX TEMPERATURE.....51-56.  
24 HR TREND......10 DEGREES COOLER.  
MIN HUMIDITY........29-35 PERCENT.  
24 HR TREND......10 PERCENT WETTER.  
20-FOOT WINDS.......SOUTHWEST 15 TO 20 MPH WITH GUSTS TO AROUND 35  
MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 20 TO 25 MPH.  
MIXING HEIGHT.......700-1200 FT AGL INCREASING TO 7600-8900 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (17400 KNOT-FT) INCREASING TO EXCELLENT  
(189300 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN. CHANCE OF SNOW  
AFTER 2000.  
MIN TEMPERATURE.....31-36.  
24 HR TREND......6 DEGREES COOLER.  
MAX HUMIDITY........85-91 PERCENT.  
24 HR TREND......30 PERCENT WETTER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......SOUTHWEST 10 TO 15 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.10 PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 30 MPH BECOMING WEST AROUND 20  
MPH AFTER MIDNIGHT.  
MIXING HEIGHT.......2200-3500 FT AGL.  
SMOKE DISPERSAL.....FAIR TO GOOD (51000-73700 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SUNDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 1200, THEN MOSTLY SUNNY.  
MAX TEMPERATURE.....45-51.  
24 HR TREND......7 DEGREES COOLER.  
MIN HUMIDITY........37-43 PERCENT.  
24 HR TREND......9 PERCENT WETTER.  
20-FOOT WINDS.......SOUTHWEST AROUND 15 MPH WITH HIGHER GUSTS.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST 20 TO 25 MPH.  
MIXING HEIGHT.......2000-3200 FT AGL INCREASING TO 4500-5600 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....FAIR (45600 KNOT-FT) INCREASING TO VERY GOOD  
(112700 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
MONDAY
 
WARMER. PARTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS IN  
THE LOWER 60S. SOUTHWEST WINDS AROUND 15 MPH.    
TUESDAY
 
COLDER. MOSTLY CLOUDY. SCATTERED SHOWERS AND SNOW  
SHOWERS. LOWS IN THE MID 30S. HIGHS IN THE LOWER 40S. SOUTHWEST  
WINDS AROUND 15 MPH.    
WEDNESDAY
 
PARTLY CLOUDY WITH ISOLATED SHOWERS AND SNOW  
SHOWERS. LOWS AROUND 30. HIGHS IN THE LOWER 40S. WEST WINDS  
AROUND 20 MPH.    
THURSDAY
 
MOSTLY CLEAR. LOWS AROUND 30. HIGHS IN THE UPPER 40S.   
FRIDAY
 
MOSTLY CLEAR. LOWS IN THE LOWER 30S. HIGHS AROUND 50.  
 

 
 
WYZ304-231015-  
SOUTHWEST CARBON COUNTY-  
209 PM MDT FRI OCT 22 2021  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MIN TEMPERATURE.....33-38.  
24 HR TREND......2 DEGREES WARMER.  
MAX HUMIDITY........60-66 PERCENT.  
24 HR TREND......8 PERCENT DRIER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......SOUTH AROUND 10 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 20 MPH.  
MIXING HEIGHT.......500-1200 FT AGL.  
SMOKE DISPERSAL.....POOR (12100-17400 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SATURDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 0900, THEN MOSTLY CLOUDY.  
SLIGHT CHANCE OF RAIN AFTER 1200.  
MAX TEMPERATURE.....51-56.  
24 HR TREND......6 DEGREES COOLER.  
MIN HUMIDITY........30-36 PERCENT.  
24 HR TREND......9 PERCENT WETTER.  
20-FOOT WINDS.......SOUTHWEST 10 TO 15 MPH WITH HIGHER GUSTS.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH INCREASING TO AROUND 25  
MPH IN THE AFTERNOON.  
MIXING HEIGHT.......600-1100 FT AGL INCREASING TO 7200-8300 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (11800 KNOT-FT) INCREASING TO EXCELLENT  
(176700 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. RAIN LIKELY UNTIL 2400, THEN  
CHANCE OF RAIN AND SNOW. LITTLE OR NO SNOW  
ACCUMULATION.  
MIN TEMPERATURE.....29-34.  
24 HR TREND......4 DEGREES COOLER.  
MAX HUMIDITY........90-96 PERCENT.  
24 HR TREND......32 PERCENT WETTER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......SOUTHWEST AROUND 10 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.30 PERCENT.  
TRANSPORT WINDS.....WEST 20 TO 25 MPH.  
MIXING HEIGHT.......2700-3500 FT AGL.  
SMOKE DISPERSAL.....FAIR (50700-56700 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SUNDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MAX TEMPERATURE.....48-53.  
24 HR TREND......4 DEGREES COOLER.  
MIN HUMIDITY........37-43 PERCENT.  
24 HR TREND......10 PERCENT WETTER.  
20-FOOT WINDS.......SOUTHWEST 10 TO 15 MPH WITH HIGHER GUSTS.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 15 MPH INCREASING TO SOUTHWEST  
AROUND 25 MPH IN THE AFTERNOON.  
MIXING HEIGHT.......1300-2400 FT AGL INCREASING TO 4700-5600 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (21200 KNOT-FT) INCREASING TO VERY GOOD  
(106400 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
MONDAY
 
PARTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE LOWER  
60S. SOUTH WINDS AROUND 15 MPH.    
TUESDAY
 
COLDER. MOSTLY CLOUDY WITH NUMEROUS SHOWERS AND SNOW  
SHOWERS. LOWS IN THE LOWER 30S. HIGHS IN THE LOWER 40S. SOUTHWEST  
WINDS AROUND 15 MPH.    
WEDNESDAY
 
PARTLY CLOUDY WITH SCATTERED SNOW SHOWERS AND  
ISOLATED SHOWERS. LOWS IN THE UPPER 20S. HIGHS IN THE MID 40S.  
WEST WINDS AROUND 15 MPH.    
THURSDAY
 
MOSTLY CLEAR. LOWS IN THE MID 20S. HIGHS IN THE UPPER  
40S.    
FRIDAY
 
MOSTLY CLEAR. LOWS IN THE UPPER 20S. HIGHS AROUND 50.  
 

 
 
WYZ305-231015-  
SIERRA MADRE RANGE/MEDICINE BOW NF-  
209 PM MDT FRI OCT 22 2021  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MIN TEMPERATURE.....33-38.  
24 HR TREND......1 DEGREE WARMER.  
MAX HUMIDITY........52-58 PERCENT.  
24 HR TREND......8 PERCENT DRIER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......SOUTH AROUND 10 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 25 MPH.  
MIXING HEIGHT.......700-2000 FT AGL.  
SMOKE DISPERSAL.....POOR (23800-31000 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SATURDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 1200, THEN MOSTLY CLOUDY.  
SLIGHT CHANCE OF RAIN AND SNOW AFTER 1200.  
MAX TEMPERATURE.....44-52.  
24 HR TREND......7 DEGREES COOLER.  
MIN HUMIDITY........31-37 PERCENT.  
24 HR TREND......9 PERCENT WETTER.  
20-FOOT WINDS.......SOUTHWEST 15 TO 20 MPH WITH GUSTS TO AROUND 35  
MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 25 TO 30 MPH.  
MIXING HEIGHT.......1400-2000 FT AGL INCREASING TO 7100-8500 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (36800 KNOT-FT) INCREASING TO EXCELLENT  
(210200 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. RAIN LIKELY UNTIL 0300. SNOW  
LIKELY. SNOW ACCUMULATION UP TO 3 INCHES.  
MIN TEMPERATURE.....27-32.  
24 HR TREND......4 DEGREES COOLER.  
MAX HUMIDITY........90-96 PERCENT.  
24 HR TREND......40 PERCENT WETTER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......SOUTHWEST AROUND 10 MPH. GUSTS UP TO 30 MPH  
DECREASING TO 20 MPH AFTER MIDNIGHT.  
LAL.................1.  
CHC OF WETTING RAIN.45 PERCENT.  
TRANSPORT WINDS.....WEST 20 TO 25 MPH.  
MIXING HEIGHT.......2500-3600 FT AGL.  
SMOKE DISPERSAL.....FAIR TO GOOD (57600-60600 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SUNDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 0900, THEN PARTLY CLOUDY  
UNTIL 1500, THEN MOSTLY SUNNY.  
MAX TEMPERATURE.....39-47.  
24 HR TREND......4 DEGREES COOLER.  
MIN HUMIDITY........47-53 PERCENT.  
24 HR TREND......11 PERCENT WETTER.  
20-FOOT WINDS.......SOUTHWEST 10 TO 15 MPH WITH HIGHER GUSTS.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST 20 TO 25 MPH.  
MIXING HEIGHT.......2600-4600 FT AGL.  
SMOKE DISPERSAL.....FAIR TO GOOD (48600-88300 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
MONDAY
 
WARMER. PARTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN  
THE MID 50S. SOUTHWEST WINDS AROUND 15 MPH.    
TUESDAY
 
COLDER. NUMEROUS SNOW SHOWERS AND SHOWERS. LOWS IN THE  
UPPER 20S. HIGHS IN THE MID 30S. SOUTHWEST WINDS AROUND 10 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY WITH SCATTERED SNOW SHOWERS AND  
ISOLATED SHOWERS. LOWS IN THE MID 20S. HIGHS IN THE MID 30S. WEST  
WINDS AROUND 10 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS IN THE MID 20S. HIGHS AROUND 40.    
FRIDAY
 
MOSTLY CLEAR. LOWS IN THE MID 20S. HIGHS IN THE MID  
40S.  
 

 
 
WYZ306-231015-  
UPPER NORTH PLATTE RIVER BASIN-  
209 PM MDT FRI OCT 22 2021  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MIN TEMPERATURE.....34-39.  
24 HR TREND......1 DEGREE WARMER.  
MAX HUMIDITY........55-61 PERCENT.  
24 HR TREND......UNCHANGED.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......SOUTH AROUND 10 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.  
MIXING HEIGHT.......700-2100 FT AGL.  
SMOKE DISPERSAL.....POOR (18700-21800 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SATURDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 0900, THEN MOSTLY CLOUDY.  
MAX TEMPERATURE.....52-57.  
24 HR TREND......9 DEGREES COOLER.  
MIN HUMIDITY........24-30 PERCENT.  
24 HR TREND......7 PERCENT WETTER.  
20-FOOT WINDS.......SOUTHWEST 10 TO 15 MPH. GUSTS UP TO 25 MPH  
INCREASING TO 35 MPH IN THE AFTERNOON.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH INCREASING TO AROUND 30  
MPH IN THE AFTERNOON.  
MIXING HEIGHT.......800-1400 FT AGL INCREASING TO 8900-9400 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (16500 KNOT-FT) INCREASING TO EXCELLENT  
(225100 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN. CHANCE OF SNOW  
AFTER 1900.  
MIN TEMPERATURE.....30-35.  
24 HR TREND......4 DEGREES COOLER.  
MAX HUMIDITY........88-94 PERCENT.  
24 HR TREND......31 PERCENT WETTER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......SOUTHWEST AROUND 10 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.20 PERCENT.  
TRANSPORT WINDS.....WEST AROUND 20 MPH.  
MIXING HEIGHT.......3000-3800 FT AGL.  
SMOKE DISPERSAL.....FAIR TO GOOD (58800-64300 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SUNDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 1200, THEN MOSTLY SUNNY.  
MAX TEMPERATURE.....46-51.  
24 HR TREND......6 DEGREES COOLER.  
MIN HUMIDITY........36-42 PERCENT.  
24 HR TREND......12 PERCENT WETTER.  
20-FOOT WINDS.......SOUTHWEST 10 TO 15 MPH WITH HIGHER GUSTS.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST 20 TO 25 MPH.  
MIXING HEIGHT.......2800-3500 FT AGL INCREASING TO 4900-5500 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....FAIR TO VERY GOOD (54400-103500 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
MONDAY
 
WARMER. PARTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN  
THE LOWER 60S. SOUTHWEST WINDS AROUND 10 MPH.    
TUESDAY
 
COLDER. MOSTLY CLOUDY WITH NUMEROUS SHOWERS AND SNOW  
SHOWERS. LOWS IN THE LOWER 30S. HIGHS IN THE LOWER 40S. SOUTHWEST  
WINDS AROUND 10 MPH.    
WEDNESDAY
 
PARTLY CLOUDY WITH SCATTERED SNOW SHOWERS AND  
SHOWERS. LOWS IN THE UPPER 20S. HIGHS IN THE LOWER 40S. WEST  
WINDS AROUND 15 MPH.    
THURSDAY
 
MOSTLY CLEAR. LOWS IN THE UPPER 20S. HIGHS IN THE MID  
40S.    
FRIDAY
 
MOSTLY CLEAR. LOWS IN THE UPPER 20S. HIGHS AROUND 50.  
 

 
 
WYZ307-231015-  
SNOWY RANGE/MEDICINE BOW NF-  
209 PM MDT FRI OCT 22 2021  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MIN TEMPERATURE.....30-36.  
24 HR TREND......1 DEGREE WARMER.  
MAX HUMIDITY........54-60 PERCENT.  
24 HR TREND......1 PERCENT DRIER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......SOUTHWEST 10 TO 15 MPH WITH GUSTS TO AROUND 35  
MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH INCREASING TO AROUND 30  
MPH AFTER MIDNIGHT.  
MIXING HEIGHT.......700-2300 FT AGL.  
SMOKE DISPERSAL.....POOR (27700-32600 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SATURDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 0900, THEN MOSTLY CLOUDY.  
MAX TEMPERATURE.....43-51.  
24 HR TREND......7 DEGREES COOLER.  
MIN HUMIDITY........31-37 PERCENT.  
24 HR TREND......10 PERCENT WETTER.  
20-FOOT WINDS.......SOUTHWEST 15 TO 20 MPH WITH GUSTS TO AROUND 35  
MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 25 TO 30 MPH.  
MIXING HEIGHT.......1100-2100 FT AGL INCREASING TO 7000-8600 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (38300 KNOT-FT) INCREASING TO EXCELLENT  
(210700 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN UNTIL 2400.  
CHANCE OF SNOW.  
MIN TEMPERATURE.....24-30.  
24 HR TREND......7 DEGREES COOLER.  
MAX HUMIDITY........92-98 PERCENT.  
24 HR TREND......42 PERCENT WETTER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......WEST 10 TO 15 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.25 PERCENT.  
TRANSPORT WINDS.....WEST AROUND 25 MPH.  
MIXING HEIGHT.......2000-3600 FT AGL.  
SMOKE DISPERSAL.....FAIR TO GOOD (50700-63200 KNOT-FT).  
HAINES INDEX........2 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.  
MAX TEMPERATURE.....37-45.  
24 HR TREND......9 DEGREES COOLER.  
MIN HUMIDITY........44-50 PERCENT.  
24 HR TREND......10 PERCENT WETTER.  
20-FOOT WINDS.......WEST AROUND 15 MPH WITH GUSTS TO AROUND 35 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 30 MPH.  
MIXING HEIGHT.......2400-4400 FT AGL.  
SMOKE DISPERSAL.....GOOD (62300-93000 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
MONDAY
 
WARMER. PARTLY CLOUDY. LOWS AROUND 30. HIGHS IN THE MID  
50S. SOUTHWEST WINDS AROUND 15 MPH.    
TUESDAY
 
COLDER. MOSTLY CLOUDY. NUMEROUS SNOW SHOWERS AND  
SHOWERS. LOWS IN THE UPPER 20S. HIGHS IN THE MID 30S. SOUTHWEST  
WINDS AROUND 10 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY WITH SCATTERED SNOW SHOWERS AND  
ISOLATED SHOWERS. LOWS IN THE LOWER 20S. HIGHS IN THE LOWER 30S.  
WEST WINDS AROUND 15 MPH.    
THURSDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER 20S. HIGHS IN THE  
UPPER 30S.    
FRIDAY
 
MOSTLY CLEAR. LOWS IN THE MID 20S. HIGHS IN THE MID  
40S.  
 

 
 
WYZ308-231015-  
LARAMIE VALLEY/SHIRLEY BASIN-  
209 PM MDT FRI OCT 22 2021  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MIN TEMPERATURE.....32-37.  
24 HR TREND......2 DEGREES COOLER.  
MAX HUMIDITY........63-69 PERCENT.  
24 HR TREND......5 PERCENT WETTER.  
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.......400-1900 FT AGL.  
SMOKE DISPERSAL.....POOR (11000-14700 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SATURDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 0900, THEN MOSTLY CLOUDY.  
MAX TEMPERATURE.....52-57.  
24 HR TREND......8 DEGREES COOLER.  
MIN HUMIDITY........30-36 PERCENT.  
24 HR TREND......5 PERCENT WETTER.  
20-FOOT WINDS.......SOUTHWEST 10 TO 15 MPH. GUSTS UP TO 20 MPH  
INCREASING TO 30 MPH IN THE AFTERNOON.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH INCREASING TO AROUND 25  
MPH IN THE AFTERNOON.  
MIXING HEIGHT.......500-1000 FT AGL INCREASING TO 8200-9300 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (11400 KNOT-FT) INCREASING TO EXCELLENT  
(185300 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN. CHANCE OF SNOW  
AFTER 2200.  
MIN TEMPERATURE.....30-35.  
24 HR TREND......2 DEGREES COOLER.  
MAX HUMIDITY........92-98 PERCENT.  
24 HR TREND......28 PERCENT WETTER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......WEST AROUND 10 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.10 PERCENT.  
TRANSPORT WINDS.....WEST 20 TO 25 MPH.  
MIXING HEIGHT.......1800-3800 FT AGL.  
SMOKE DISPERSAL.....FAIR (43200-55000 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.  
MAX TEMPERATURE.....46-51.  
24 HR TREND......7 DEGREES COOLER.  
MIN HUMIDITY........37-43 PERCENT.  
24 HR TREND......15 PERCENT WETTER.  
20-FOOT WINDS.......WEST 10 TO 15 MPH WITH HIGHER GUSTS.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 25 MPH.  
MIXING HEIGHT.......2800-3500 FT AGL INCREASING TO 4900-5500 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD TO VERY GOOD (69500-115500 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
MONDAY
 
WARMER. PARTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN  
THE LOWER 60S. SOUTHWEST WINDS AROUND 10 MPH.    
TUESDAY
 
COLDER. PARTLY CLOUDY WITH SCATTERED SHOWERS AND SNOW  
SHOWERS. LOWS IN THE LOWER 30S. HIGHS IN THE MID 40S. SOUTHWEST  
WINDS AROUND 10 MPH.    
WEDNESDAY
 
PARTLY CLOUDY WITH ISOLATED SHOWERS AND SNOW  
SHOWERS. LOWS IN THE UPPER 20S. HIGHS IN THE LOWER 40S. WEST  
WINDS AROUND 15 MPH.    
THURSDAY
 
MOSTLY CLEAR. LOWS IN THE UPPER 20S. HIGHS IN THE  
UPPER 40S.    
FRIDAY
 
MOSTLY CLEAR. LOWS IN THE UPPER 20S. HIGHS IN THE LOWER  
50S.  
 

 
 
WYZ309-231015-  
SOUTH LARAMIE RANGE/MEDICINE BOW NF-  
209 PM MDT FRI OCT 22 2021  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MIN TEMPERATURE.....36-42.  
24 HR TREND......2 DEGREES COOLER.  
MAX HUMIDITY........51-57 PERCENT.  
24 HR TREND......4 PERCENT DRIER.  
HUMIDITY RECOVERY...POOR.  
20-FOOT WINDS.......SOUTHWEST 5 TO 10 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH INCREASING TO AROUND 20  
MPH AFTER MIDNIGHT.  
MIXING HEIGHT.......500-2500 FT AGL.  
SMOKE DISPERSAL.....POOR (17800-24200 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SATURDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY.  
MAX TEMPERATURE.....53-61.  
24 HR TREND......12 DEGREES COOLER.  
MIN HUMIDITY........25-31 PERCENT.  
24 HR TREND......2 PERCENT WETTER.  
20-FOOT WINDS.......SOUTHWEST AROUND 10 MPH WITH HIGHER GUSTS.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 25 MPH.  
MIXING HEIGHT.......600-1100 FT AGL INCREASING TO 8300-10000 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (16600 KNOT-FT) INCREASING TO EXCELLENT  
(188900 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN UNTIL  
2400. CHANCE OF SNOW AFTER 2100. CHANCE OF RAIN  
AFTER 2400.  
MIN TEMPERATURE.....32-40.  
24 HR TREND......2 DEGREES COOLER.  
MAX HUMIDITY........78-84 PERCENT.  
24 HR TREND......32 PERCENT WETTER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......WEST AROUND 10 MPH. GUSTS UP TO 20 MPH  
INCREASING TO 30 MPH AFTER MIDNIGHT.  
LAL.................1.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....WEST 20 TO 25 MPH.  
MIXING HEIGHT.......1100-3100 FT AGL.  
SMOKE DISPERSAL.....POOR TO FAIR (34200-43100 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.  
MAX TEMPERATURE.....47-55.  
24 HR TREND......6 DEGREES COOLER.  
MIN HUMIDITY........31-37 PERCENT.  
24 HR TREND......7 PERCENT WETTER.  
20-FOOT WINDS.......WEST 15 TO 20 MPH WITH GUSTS TO AROUND 35 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 35 MPH BECOMING WEST AROUND 25  
MPH IN THE AFTERNOON.  
MIXING HEIGHT.......2600-3700 FT AGL INCREASING TO 4500-6100 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD TO VERY GOOD (87900-122200 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
MONDAY
 
WARMER. PARTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN  
THE MID 60S. SOUTHWEST WINDS AROUND 10 MPH.    
TUESDAY
 
COOLER. PARTLY CLOUDY WITH SCATTERED SHOWERS. LOWS IN  
THE UPPER 30S. HIGHS IN THE UPPER 40S. WEST WINDS AROUND 10 MPH.    
WEDNESDAY
 
MOSTLY CLEAR. ISOLATED SHOWERS AND SNOW SHOWERS.  
LOWS IN THE LOWER 30S. HIGHS IN THE UPPER 40S. WEST WINDS AROUND  
20 MPH.    
THURSDAY
 
MOSTLY CLEAR. LOWS IN THE LOWER 30S. HIGHS IN THE  
LOWER 50S.    
FRIDAY
 
MOSTLY CLEAR. LOWS IN THE MID 30S. HIGHS IN THE MID  
50S.  
 

 
 
WYZ310-231015-  
PLATTE/GOSHEN/CENTRAL AND EASTERN LARAMIE-  
209 PM MDT FRI OCT 22 2021  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MIN TEMPERATURE.....36-41.  
24 HR TREND......2 DEGREES COOLER.  
MAX HUMIDITY........68-74 PERCENT.  
24 HR TREND......16 PERCENT WETTER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......SOUTH 5 TO 10 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH 10 TO 15 MPH.  
MIXING HEIGHT.......300-2100 FT AGL.  
SMOKE DISPERSAL.....POOR (10100-11000 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SATURDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 1200, THEN MOSTLY CLOUDY.  
MAX TEMPERATURE.....61-66.  
24 HR TREND......5 DEGREES COOLER.  
MIN HUMIDITY........22-28 PERCENT.  
24 HR TREND......5 PERCENT WETTER.  
20-FOOT WINDS.......SOUTHWEST AROUND 10 MPH WITH HIGHER GUSTS.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST 15 TO 20 MPH.  
MIXING HEIGHT.......300-800 FT AGL INCREASING TO 6300-8300 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (8500 KNOT-FT) INCREASING TO VERY GOOD  
(123500 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN.  
MIN TEMPERATURE.....37-42.  
24 HR TREND......UNCHANGED.  
MAX HUMIDITY........84-90 PERCENT.  
24 HR TREND......10 PERCENT DRIER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......WEST AROUND 5 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....WEST AROUND 10 MPH.  
MIXING HEIGHT.......700-2700 FT AGL.  
SMOKE DISPERSAL.....POOR (13300-13700 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.  
MAX TEMPERATURE.....55-60.  
24 HR TREND......4 DEGREES COOLER.  
MIN HUMIDITY........31-37 PERCENT.  
24 HR TREND......4 PERCENT WETTER.  
20-FOOT WINDS.......NORTHWEST AROUND 15 MPH WITH GUSTS TO AROUND 35  
MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST 20 TO 25 MPH.  
MIXING HEIGHT.......2700-3500 FT AGL INCREASING TO 5900-6700 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD (71500 KNOT-FT) INCREASING TO VERY GOOD  
(122100 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
MONDAY
 
PARTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE UPPER  
60S. SOUTH WINDS AROUND 10 MPH.    
TUESDAY
 
COOLER. PARTLY CLOUDY. SCATTERED SHOWERS. LOWS IN THE  
UPPER 30S. HIGHS IN THE MID 50S. WEST WINDS AROUND 10 MPH.    
WEDNESDAY
 
MOSTLY CLEAR. ISOLATED SHOWERS. LOWS IN THE MID 30S.  
HIGHS IN THE LOWER 50S. NORTHWEST WINDS AROUND 15 MPH.    
THURSDAY
 
MOSTLY CLEAR. LOWS IN THE LOWER 30S. HIGHS IN THE MID  
50S.    
FRIDAY
 
MOSTLY CLEAR. LOWS IN THE MID 30S. HIGHS IN THE LOWER  
60S.  
 

 
 
NEZ311-231015-  
PINE RIDGE/NEBRASKA NATIONAL FOREST/OGLALA NATIONAL GRASSLANDS-  
209 PM MDT FRI OCT 22 2021  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MIN TEMPERATURE.....36-41.  
24 HR TREND......1 DEGREE COOLER.  
MAX HUMIDITY........86-92 PERCENT.  
24 HR TREND......13 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.......300-800 FT AGL.  
SMOKE DISPERSAL.....POOR (6900-7500 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SATURDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 1500, THEN MOSTLY CLOUDY.  
MAX TEMPERATURE.....64-69.  
24 HR TREND......1 DEGREE WARMER.  
MIN HUMIDITY........24-30 PERCENT.  
24 HR TREND......11 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST AROUND 10 MPH WITH HIGHER GUSTS.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......300-800 FT AGL INCREASING TO 4400-6200 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (6700 KNOT-FT) INCREASING TO GOOD (66600  
KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN AFTER  
2400.  
MIN TEMPERATURE.....38-43.  
24 HR TREND......3 DEGREES WARMER.  
MAX HUMIDITY........92-98 PERCENT.  
24 HR TREND......8 PERCENT WETTER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......WEST AROUND 5 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....WEST AROUND 10 MPH.  
MIXING HEIGHT.......600-2600 FT AGL.  
SMOKE DISPERSAL.....POOR (10300-15600 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SUNDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 0900, THEN PARTLY CLOUDY  
UNTIL 1500, THEN MOSTLY SUNNY.  
MAX TEMPERATURE.....53-58.  
24 HR TREND......11 DEGREES COOLER.  
MIN HUMIDITY........46-52 PERCENT.  
24 HR TREND......17 PERCENT WETTER.  
20-FOOT WINDS.......NORTHWEST 10 TO 15 MPH WITH HIGHER GUSTS.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......1500-2300 FT AGL INCREASING TO 4600-5500 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (26100 KNOT-FT) INCREASING TO GOOD (77100  
KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
MONDAY
 
PARTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE MID  
60S. SOUTH WINDS AROUND 15 MPH.    
TUESDAY
 
MOSTLY CLOUDY WITH SCATTERED SHOWERS. LOWS IN THE  
LOWER 40S. HIGHS IN THE UPPER 50S. SOUTHWEST WINDS AROUND 15 MPH.   
WEDNESDAY
 
MOSTLY CLEAR. ISOLATED SHOWERS. LOWS IN THE MID 30S.  
HIGHS IN THE MID 50S. NORTHWEST WINDS AROUND 15 MPH.    
THURSDAY
 
MOSTLY CLEAR. LOWS IN THE MID 30S. HIGHS IN THE MID  
50S.    
FRIDAY
 
MOSTLY CLEAR. LOWS IN THE MID 30S. HIGHS IN THE LOWER  
60S.  
 

 
 
NEZ312-231015-  
BOX BUTTE/SOUTH SIOUX-  
209 PM MDT FRI OCT 22 2021  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MIN TEMPERATURE.....35-40.  
24 HR TREND......1 DEGREE COOLER.  
MAX HUMIDITY........90-96 PERCENT.  
24 HR TREND......20 PERCENT WETTER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......SOUTHEAST AROUND 10 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH 15 TO 20 MPH.  
MIXING HEIGHT.......400-1100 FT AGL.  
SMOKE DISPERSAL.....POOR (6700-8500 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
SATURDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 1500, THEN MOSTLY CLOUDY.  
MAX TEMPERATURE.....63-68.  
24 HR TREND......2 DEGREES COOLER.  
MIN HUMIDITY........23-29 PERCENT.  
24 HR TREND......UNCHANGED.  
20-FOOT WINDS.......SOUTHWEST AROUND 10 MPH WITH HIGHER GUSTS.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.  
MIXING HEIGHT.......300-800 FT AGL INCREASING TO 4700-6400 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (6900 KNOT-FT) INCREASING TO GOOD (85200  
KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........CLOUDY. SLIGHT CHANCE OF RAIN.  
MIN TEMPERATURE.....38-43.  
24 HR TREND......3 DEGREES WARMER.  
MAX HUMIDITY........93-99 PERCENT.  
24 HR TREND......4 PERCENT WETTER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......SOUTHWEST AROUND 5 MPH SHIFTING TO THE WEST  
AFTER MIDNIGHT. GUSTS UP TO 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....WEST AROUND 10 MPH.  
MIXING HEIGHT.......400-2300 FT AGL.  
SMOKE DISPERSAL.....POOR (9000-16500 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 1500, THEN MOSTLY SUNNY.  
MAX TEMPERATURE.....55-60.  
24 HR TREND......8 DEGREES COOLER.  
MIN HUMIDITY........41-47 PERCENT.  
24 HR TREND......15 PERCENT WETTER.  
20-FOOT WINDS.......NORTHWEST 10 TO 15 MPH WITH HIGHER GUSTS.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 20 MPH.  
MIXING HEIGHT.......2000-2600 FT AGL INCREASING TO 5000-6100 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (36600 KNOT-FT) INCREASING TO VERY GOOD  
(107700 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
MONDAY
 
PARTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE MID  
60S. SOUTH WINDS AROUND 10 MPH.    
TUESDAY
 
MOSTLY CLOUDY WITH SCATTERED SHOWERS. LOWS AROUND 40.  
HIGHS IN THE UPPER 50S. SOUTHWEST WINDS AROUND 15 MPH.    
WEDNESDAY
 
MOSTLY CLEAR. ISOLATED SHOWERS. LOWS IN THE MID 30S.  
HIGHS IN THE MID 50S. NORTHWEST WINDS AROUND 15 MPH.    
THURSDAY
 
CLEAR. LOWS IN THE LOWER 30S. HIGHS IN THE UPPER 50S.   
FRIDAY
 
MOSTLY CLEAR. LOWS IN THE LOWER 30S. HIGHS IN THE LOWER  
60S.  
 

 
 
NEZ313-231015-  
SCOTTS BLUFF NATIONAL MONUMENT/WILDCAT HILLS-  
209 PM MDT FRI OCT 22 2021  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MIN TEMPERATURE.....35-40.  
24 HR TREND......2 DEGREES COOLER.  
MAX HUMIDITY........81-87 PERCENT.  
24 HR TREND......23 PERCENT WETTER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......SOUTHEAST 5 TO 10 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH 10 TO 15 MPH.  
MIXING HEIGHT.......300-2300 FT AGL.  
SMOKE DISPERSAL.....POOR (8300-13200 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SATURDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 1500, THEN MOSTLY CLOUDY.  
MAX TEMPERATURE.....65-70.  
24 HR TREND......3 DEGREES COOLER.  
MIN HUMIDITY........24-30 PERCENT.  
24 HR TREND......6 PERCENT DRIER.  
20-FOOT WINDS.......SOUTH 5 TO 10 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.  
MIXING HEIGHT.......300-1200 FT AGL INCREASING TO 6700-8700 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (8400 KNOT-FT) INCREASING TO GOOD (76300  
KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
SATURDAY NIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN UNTIL  
2400, THEN CHANCE OF RAIN.  
MIN TEMPERATURE.....39-44.  
24 HR TREND......5 DEGREES WARMER.  
MAX HUMIDITY........91-97 PERCENT.  
24 HR TREND......4 PERCENT WETTER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......SOUTHEAST AROUND 5 MPH SHIFTING TO THE  
NORTHWEST AFTER MIDNIGHT. GUSTS UP TO 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH SHIFTING TO THE  
NORTHWEST AFTER MIDNIGHT.  
MIXING HEIGHT.......400-2400 FT AGL.  
SMOKE DISPERSAL.....POOR (6000-14000 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.  
MAX TEMPERATURE.....57-62.  
24 HR TREND......7 DEGREES COOLER.  
MIN HUMIDITY........34-40 PERCENT.  
24 HR TREND......20 PERCENT WETTER.  
20-FOOT WINDS.......NORTHWEST AROUND 15 MPH WITH GUSTS TO AROUND 35  
MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 25 MPH.  
MIXING HEIGHT.......2300-3400 FT AGL INCREASING TO 5900-6600 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD (60800 KNOT-FT) INCREASING TO VERY GOOD  
(142000 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
MONDAY
 
PARTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE MID  
60S. SOUTHEAST WINDS AROUND 10 MPH.    
TUESDAY
 
PARTLY CLOUDY WITH SCATTERED SHOWERS. LOWS IN THE  
LOWER 40S. HIGHS IN THE UPPER 50S. SOUTHWEST WINDS AROUND 15 MPH.   
WEDNESDAY
 
MOSTLY CLEAR. ISOLATED SHOWERS. LOWS IN THE MID 30S.  
HIGHS IN THE UPPER 50S. NORTHWEST WINDS AROUND 15 MPH.    
THURSDAY
 
CLEAR. LOWS IN THE MID 30S. HIGHS IN THE UPPER 50S.    
FRIDAY
 
MOSTLY CLEAR. LOWS IN THE MID 30S. HIGHS IN THE MID  
60S.  
 

 
 
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