189  
FNUS55 KCYS 230749  
FWFCYS  
 
FIRE WEATHER PLANNING FORECAST FOR SOUTHEAST WYOMING/WESTERN NEBRASKA  
NATIONAL WEATHER SERVICE CHEYENNE WY  
149 AM MDT SUN APR 23 2017  
   
DISCUSSION
 
 
STRONG WINDS TODAY AS HIGH PRESSURE MOVES OFF TO OUR EAST AND A  
FRONT BEGINS TO MOVE IN FROM THE WEST. COULD SEE SOUTHWEST WINDS  
GUSTING CLOSE TO 50 MPH IN THE WIND PRONE AREAS TODAY.  
FORTUNATELY, AFTERNOON HUMIDITIES SHOULD REMAIN ABOVE CRITICAL  
THRESHOLDS. AS THE FRONT MOVES INTO CARBON COUNTY LATE THIS  
AFTERNOON, WE WILL SEE INCREASING CHANCES FOR WETTING RAINS AND  
MOUNTAIN SNOW. PRETTY UNSETTLED WEATHER FOR MOST OF THE UPCOMING  
WEEK WITH DAILY CHANCES FOR WETTING RAINS AND MOUNTAIN SNOW.  
 
WYZ301-232215-  
NIOBRARA/LOWER ELEVATIONS OF CONVERSE/THUNDER BASIN NATIONAL  
GRASSLAND-  
149 AM MDT SUN APR 23 2017  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MAX TEMPERATURE.....69-74.  
24 HR TREND......15 DEGREES WARMER.  
MIN HUMIDITY........15-21 PERCENT.  
24 HR TREND......15 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.....SOUTHWEST 15 TO 20 MPH.  
MIXING HEIGHT.......5200-6200 FT AGL INCREASING TO 7600-9100 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD (68200 KNOT-FT) INCREASING TO VERY GOOD  
(128200 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS UNTIL 2400, THEN CHANCE OF  
SHOWERS.  
MIN TEMPERATURE.....39-44.  
24 HR TREND......4 DEGREES WARMER.  
MAX HUMIDITY........74-80 PERCENT.  
24 HR TREND......3 PERCENT WETTER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......WEST 10 TO 15 MPH AND GUSTY.  
LAL.................2 UNTIL 2400, THEN 1.  
CHC OF WETTING RAIN.10 PERCENT.  
TRANSPORT WINDS.....WEST AROUND 15 MPH.  
MIXING HEIGHT.......4100-5000 FT AGL DECREASING TO 800 FT AGL AFTER  
MIDNIGHT.  
SMOKE DISPERSAL.....GOOD (63300 KNOT-FT) DECREASING TO POOR (11000  
KNOT-FT) AFTER MIDNIGHT.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
MONDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 1200, THEN MOSTLY CLOUDY.  
SLIGHT CHANCE OF SHOWERS UNTIL 1200, THEN  
CHANCE OF SHOWERS AND THUNDERSTORMS.  
MAX TEMPERATURE.....57-62.  
24 HR TREND......13 DEGREES COOLER.  
MIN HUMIDITY........29-35 PERCENT.  
24 HR TREND......14 PERCENT WETTER.  
20-FOOT WINDS.......NORTHWEST AROUND 15 MPH WITH HIGHER GUSTS.  
LAL.................1 UNTIL 1200, THEN 3.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 20 MPH.  
MIXING HEIGHT.......4400-4900 FT AGL INCREASING TO 8200-9000 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD (70600 KNOT-FT) INCREASING TO VERY GOOD  
(132500 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
TUESDAY
 
COOLER. RAIN LIKELY. LOWS IN THE UPPER 30S. HIGHS  
AROUND 50. NORTHEAST WINDS AROUND 10 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY WITH SCATTERED SHOWERS. LOWS AROUND  
30. HIGHS AROUND 50. SOUTHEAST WINDS AROUND 5 MPH.    
THURSDAY
 
MOSTLY CLOUDY WITH SCATTERED SHOWERS AND ISOLATED  
SNOW SHOWERS. LOWS IN THE LOWER 30S. HIGHS IN THE UPPER 40S.  
WINDS GENERALLY LESS THAN 10 MPH.    
FRIDAY
 
CLOUDY WITH SCATTERED SHOWERS AND SNOW SHOWERS. LOWS IN  
THE LOWER 30S. HIGHS IN THE MID 40S.    
SATURDAY
 
MOSTLY CLOUDY WITH SCATTERED SHOWERS AND ISOLATED  
SNOW SHOWERS. LOWS IN THE LOWER 30S. HIGHS IN THE UPPER 40S.  
 

 
 
WYZ302-232215-  
NORTH LARAMIE RANGE/MEDICINE BOW NF-  
149 AM MDT SUN APR 23 2017  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS AND  
THUNDERSTORMS AFTER 1200.  
MAX TEMPERATURE.....58-68.  
24 HR TREND......15 DEGREES WARMER.  
MIN HUMIDITY........21-27 PERCENT.  
24 HR TREND......26 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST 15 TO 20 MPH WITH HIGHER GUSTS.  
LAL.................1 UNTIL 1200, THEN 2.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 20 TO 25 MPH.  
MIXING HEIGHT.......4200-5800 FT AGL INCREASING TO 6400-8400 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD (78300 KNOT-FT) INCREASING TO VERY GOOD  
(141900 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS  
UNTIL 2400. CHANCE OF SHOWERS.  
MIN TEMPERATURE.....34-40.  
24 HR TREND......1 DEGREE WARMER.  
MAX HUMIDITY........70-76 PERCENT.  
24 HR TREND......3 PERCENT WETTER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......WEST AROUND 15 MPH AND GUSTY.  
LAL.................2 UNTIL 2400, THEN 1.  
CHC OF WETTING RAIN.25 PERCENT.  
TRANSPORT WINDS.....WEST AROUND 20 MPH.  
MIXING HEIGHT.......4400-5400 FT AGL DECREASING TO 1500-2800 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....POOR TO GOOD (38800-80100 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS UNTIL  
1200, THEN CHANCE OF SHOWERS AND THUNDERSTORMS.  
MAX TEMPERATURE.....47-55.  
24 HR TREND......10 DEGREES COOLER.  
MIN HUMIDITY........36-42 PERCENT.  
24 HR TREND......12 PERCENT WETTER.  
20-FOOT WINDS.......WEST AROUND 20 MPH WITH GUSTS TO AROUND 40 MPH.  
LAL.................1 UNTIL 1200, THEN 4.  
CHC OF WETTING RAIN.10 PERCENT.  
TRANSPORT WINDS.....WEST AROUND 25 MPH.  
MIXING HEIGHT.......4600-5700 FT AGL INCREASING TO 7100-8900 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....VERY GOOD (105700 KNOT-FT) INCREASING TO  
EXCELLENT (175800 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
TUESDAY
 
COOLER. RAIN AND SNOW LIKELY. LOWS IN THE LOWER 30S.  
HIGHS IN THE MID 40S. WEST WINDS AROUND 10 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY WITH SCATTERED SHOWERS AND SNOW  
SHOWERS. LOWS IN THE UPPER 20S. HIGHS IN THE MID 40S. WEST WINDS  
AROUND 10 MPH.    
THURSDAY
 
MOSTLY CLOUDY WITH SCATTERED SHOWERS AND SNOW  
SHOWERS. LOWS AROUND 30. HIGHS IN THE LOWER 40S. WEST WINDS  
AROUND 10 MPH.    
FRIDAY
 
CLOUDY WITH SCATTERED SHOWERS AND SNOW SHOWERS. LOWS IN  
THE UPPER 20S. HIGHS IN THE UPPER 30S.    
SATURDAY
 
MOSTLY CLOUDY WITH SCATTERED SHOWERS AND SNOW  
SHOWERS. LOWS IN THE UPPER 20S. HIGHS IN THE LOWER 40S.  
 

 
 
WYZ303-232215-  
CENTRAL AND NORTHERN CARBON/FERRIS-SEMINOE-SHIRLEY MOUNTAINS-  
149 AM MDT SUN APR 23 2017  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS AND  
THUNDERSTORMS AFTER 1200.  
MAX TEMPERATURE.....61-66.  
24 HR TREND......13 DEGREES WARMER.  
MIN HUMIDITY........16-22 PERCENT.  
24 HR TREND......7 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST 15 TO 20 MPH WITH GUSTS TO AROUND 40  
MPH.  
LAL.................1 UNTIL 1200, THEN 2.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 20 TO 25 MPH.  
MIXING HEIGHT.......4900-6200 FT AGL INCREASING TO 7300-9100 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD (94100 KNOT-FT) INCREASING TO EXCELLENT  
(189400 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS  
UNTIL 2400. CHANCE OF SHOWERS.  
MIN TEMPERATURE.....35-40.  
24 HR TREND......2 DEGREES WARMER.  
MAX HUMIDITY........72-78 PERCENT.  
24 HR TREND......18 PERCENT WETTER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......WEST AROUND 15 MPH WITH GUSTS TO AROUND 35 MPH.  
LAL.................2 UNTIL 2400, THEN 1.  
CHC OF WETTING RAIN.25 PERCENT.  
TRANSPORT WINDS.....WEST 15 TO 20 MPH.  
MIXING HEIGHT.......4900-5800 FT AGL DECREASING TO 1500-2800 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....GOOD (92500 KNOT-FT) DECREASING TO POOR (32200  
KNOT-FT) AFTER MIDNIGHT.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS UNTIL  
1200, THEN CHANCE OF SHOWERS AND THUNDERSTORMS.  
MAX TEMPERATURE.....50-55.  
24 HR TREND......12 DEGREES COOLER.  
MIN HUMIDITY........34-40 PERCENT.  
24 HR TREND......16 PERCENT WETTER.  
20-FOOT WINDS.......WEST AROUND 20 MPH WITH GUSTS TO AROUND 50 MPH.  
LAL.................1 UNTIL 1200, THEN 4.  
CHC OF WETTING RAIN.10 PERCENT.  
TRANSPORT WINDS.....WEST AROUND 25 MPH.  
MIXING HEIGHT.......4700-5500 FT AGL INCREASING TO 7600-8600 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....VERY GOOD (102800 KNOT-FT) INCREASING TO  
EXCELLENT (186800 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
TUESDAY
 
COOLER. CLOUDY WITH CHANCE OF RAIN AND SNOW. LOWS IN  
THE LOWER 30S. HIGHS IN THE UPPER 40S. WEST WINDS AROUND 15 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY WITH SCATTERED SHOWERS AND ISOLATED  
SNOW SHOWERS. LOWS AROUND 30. HIGHS IN THE UPPER 40S. WEST WINDS  
AROUND 10 MPH.    
THURSDAY
 
MOSTLY CLOUDY WITH SCATTERED SHOWERS AND SNOW  
SHOWERS. LOWS AROUND 30. HIGHS IN THE MID 40S. WEST WINDS AROUND  
10 MPH.    
FRIDAY
 
CLOUDY WITH SCATTERED SHOWERS AND SNOW SHOWERS. LOWS IN  
THE UPPER 20S. HIGHS IN THE LOWER 40S.    
SATURDAY
 
MOSTLY CLOUDY WITH SCATTERED SHOWERS AND SNOW  
SHOWERS. LOWS IN THE UPPER 20S. HIGHS IN THE MID 40S.  
 

 
 
WYZ304-232215-  
SOUTHWEST CARBON COUNTY-  
149 AM MDT SUN APR 23 2017  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS AND  
THUNDERSTORMS AFTER 1200.  
MAX TEMPERATURE.....62-67.  
24 HR TREND......9 DEGREES WARMER.  
MIN HUMIDITY........15-21 PERCENT.  
24 HR TREND......1 PERCENT DRIER.  
20-FOOT WINDS.......BREEZY. SOUTH AROUND 15 MPH WITH GUSTS TO  
AROUND 35 MPH INCREASING TO SOUTHWEST AROUND 25  
MPH WITH GUSTS TO AROUND 45 MPH IN THE  
AFTERNOON.  
LAL.................1 UNTIL 1200, THEN 2.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 15 MPH INCREASING TO SOUTHWEST  
AROUND 30 MPH IN THE AFTERNOON.  
MIXING HEIGHT.......5400-6000 FT AGL INCREASING TO 8000-8900 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD (82200 KNOT-FT) INCREASING TO EXCELLENT  
(213600 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS UNTIL  
2400. CHANCE OF SHOWERS.  
MIN TEMPERATURE.....33-38.  
24 HR TREND......1 DEGREE WARMER.  
MAX HUMIDITY........77-83 PERCENT.  
24 HR TREND......18 PERCENT WETTER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......WEST 10 TO 15 MPH. GUSTS UP TO 35 MPH  
DECREASING TO 20 MPH AFTER MIDNIGHT.  
LAL.................2 UNTIL 2400, THEN 1.  
CHC OF WETTING RAIN.25 PERCENT.  
TRANSPORT WINDS.....WEST 15 TO 20 MPH.  
MIXING HEIGHT.......5100-5900 FT AGL DECREASING TO 1800-2800 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....GOOD (92300 KNOT-FT) DECREASING TO POOR (24400  
KNOT-FT) AFTER MIDNIGHT.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS UNTIL  
1200, THEN CHANCE OF SHOWERS AND THUNDERSTORMS.  
MAX TEMPERATURE.....52-57.  
24 HR TREND......10 DEGREES COOLER.  
MIN HUMIDITY........32-38 PERCENT.  
24 HR TREND......15 PERCENT WETTER.  
20-FOOT WINDS.......SOUTHWEST AROUND 10 MPH INCREASING TO AROUND 20  
MPH IN THE AFTERNOON. GUSTS UP TO 30 MPH.  
LAL.................1 UNTIL 1200, THEN 3.  
CHC OF WETTING RAIN.10 PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH INCREASING TO AROUND 25  
MPH IN THE AFTERNOON.  
MIXING HEIGHT.......4800-5600 FT AGL INCREASING TO 8000-8600 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD (69500 KNOT-FT) INCREASING TO EXCELLENT  
(165800 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
TUESDAY
 
COOLER. CLOUDY WITH CHANCE OF RAIN AND SNOW. LOWS IN  
THE LOWER 30S. HIGHS AROUND 50. WEST WINDS AROUND 15 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY WITH SCATTERED SHOWERS AND ISOLATED  
SNOW SHOWERS. LOWS AROUND 30. HIGHS IN THE UPPER 40S. WEST WINDS  
AROUND 10 MPH.    
THURSDAY
 
MOSTLY CLOUDY WITH SCATTERED SHOWERS AND SNOW  
SHOWERS. LOWS IN THE UPPER 20S. HIGHS IN THE UPPER 40S. WEST  
WINDS AROUND 10 MPH.    
FRIDAY
 
MOSTLY CLOUDY WITH SCATTERED SHOWERS AND SNOW SHOWERS.  
LOWS IN THE UPPER 20S. HIGHS IN THE UPPER 40S.    
SATURDAY
 
MOSTLY CLOUDY WITH ISOLATED SHOWERS AND SNOW SHOWERS.  
LOWS IN THE UPPER 20S. HIGHS IN THE UPPER 40S.  
 

 
 
WYZ305-232215-  
SIERRA MADRE RANGE/MEDICINE BOW NF-  
149 AM MDT SUN APR 23 2017  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS AND  
THUNDERSTORMS AFTER 1200.  
MAX TEMPERATURE.....52-60.  
24 HR TREND......9 DEGREES WARMER.  
MIN HUMIDITY........26-32 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 UNTIL 1200, THEN 2.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 15 MPH INCREASING TO SOUTHWEST  
AROUND 25 MPH IN THE AFTERNOON.  
MIXING HEIGHT.......3600-4900 FT AGL INCREASING TO 5400-7400 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD (61000 KNOT-FT) INCREASING TO VERY GOOD  
(137200 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS UNTIL  
2400. SHOWERS LIKELY. SNOW SHOWERS LIKELY AFTER  
2400. SNOW ACCUMULATION UP TO 1 INCH.  
MIN TEMPERATURE.....31-36.  
24 HR TREND......3 DEGREES WARMER.  
MAX HUMIDITY........77-83 PERCENT.  
24 HR TREND......21 PERCENT WETTER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......WEST 10 TO 15 MPH. GUSTS UP TO 30 MPH  
DECREASING TO 20 MPH AFTER MIDNIGHT.  
LAL.................2 UNTIL 2400, THEN 1.  
CHC OF WETTING RAIN.40 PERCENT.  
TRANSPORT WINDS.....WEST 15 TO 20 MPH.  
MIXING HEIGHT.......3400-5200 FT AGL DECREASING TO 1300-2800 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....POOR TO GOOD (26500-70400 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS UNTIL  
1200. CHANCE OF SHOWERS. CHANCE OF  
THUNDERSTORMS AFTER 1200.  
MAX TEMPERATURE.....43-51.  
24 HR TREND......8 DEGREES COOLER.  
MIN HUMIDITY........45-51 PERCENT.  
24 HR TREND......15 PERCENT WETTER.  
20-FOOT WINDS.......SOUTHWEST 10 TO 15 MPH WITH HIGHER GUSTS.  
LAL.................1 UNTIL 1200, THEN 4.  
CHC OF WETTING RAIN.20 PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.  
MIXING HEIGHT.......3800-5300 FT AGL INCREASING TO 6200-7900 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD (66900 KNOT-FT) INCREASING TO VERY GOOD  
(135300 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
TUESDAY
 
COLDER. RAIN AND SNOW. LOWS AROUND 30. HIGHS IN THE  
LOWER 40S. WEST WINDS AROUND 10 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY WITH SCATTERED SHOWERS AND SNOW  
SHOWERS. LOWS IN THE MID 20S. HIGHS IN THE LOWER 40S. WEST WINDS  
AROUND 10 MPH.    
THURSDAY
 
CLOUDY WITH SCATTERED SHOWERS AND SNOW SHOWERS. LOWS  
IN THE MID 20S. HIGHS AROUND 40. WEST WINDS AROUND 10 MPH.    
FRIDAY
 
CLOUDY WITH SCATTERED SHOWERS AND SNOW SHOWERS. LOWS IN  
THE MID 20S. HIGHS AROUND 40.    
SATURDAY
 
MOSTLY CLOUDY WITH SCATTERED SHOWERS AND SNOW  
SHOWERS. LOWS IN THE MID 20S. HIGHS IN THE LOWER 40S.  
 

 
 
WYZ306-232215-  
UPPER NORTH PLATTE RIVER BASIN-  
149 AM MDT SUN APR 23 2017  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MAX TEMPERATURE.....60-65.  
24 HR TREND......11 DEGREES WARMER.  
MIN HUMIDITY........18-24 PERCENT.  
24 HR TREND......6 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST 15 TO 20 MPH WITH GUSTS TO AROUND 40  
MPH.  
LAL.................1 UNTIL 1200, THEN 2.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 15 MPH INCREASING TO SOUTHWEST  
AROUND 25 MPH IN THE AFTERNOON.  
MIXING HEIGHT.......4400-5300 FT AGL INCREASING TO 6500-7900 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD (70300 KNOT-FT) INCREASING TO EXCELLENT  
(153300 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS  
UNTIL 2400. CHANCE OF SHOWERS.  
MIN TEMPERATURE.....34-39.  
24 HR TREND......3 DEGREES WARMER.  
MAX HUMIDITY........73-79 PERCENT.  
24 HR TREND......18 PERCENT WETTER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......SOUTHWEST 10 TO 15 MPH. GUSTS UP TO 35 MPH  
DECREASING TO 25 MPH AFTER MIDNIGHT.  
LAL.................2 UNTIL 2400, THEN 1.  
CHC OF WETTING RAIN.30 PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.  
MIXING HEIGHT.......4100-5500 FT AGL DECREASING TO 1600-3100 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....POOR TO GOOD (29300-74900 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS UNTIL  
1200, THEN CHANCE OF SHOWERS AND THUNDERSTORMS.  
MAX TEMPERATURE.....51-56.  
24 HR TREND......10 DEGREES COOLER.  
MIN HUMIDITY........34-40 PERCENT.  
24 HR TREND......15 PERCENT WETTER.  
20-FOOT WINDS.......SOUTHWEST 15 TO 20 MPH WITH GUSTS TO AROUND 45  
MPH.  
LAL.................1 UNTIL 1200, THEN 3.  
CHC OF WETTING RAIN.10 PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 20 TO 25 MPH.  
MIXING HEIGHT.......4700-6000 FT AGL INCREASING TO 7700-8900 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD (89900 KNOT-FT) INCREASING TO EXCELLENT  
(174200 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
TUESDAY
 
COOLER. CLOUDY WITH RAIN AND SNOW LIKELY. LOWS IN THE  
LOWER 30S. HIGHS IN THE UPPER 40S. WEST WINDS AROUND 10 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY WITH SCATTERED SHOWERS AND ISOLATED  
SNOW SHOWERS. LOWS IN THE UPPER 20S. HIGHS IN THE UPPER 40S. WEST  
WINDS AROUND 10 MPH.    
THURSDAY
 
MOSTLY CLOUDY WITH SCATTERED SHOWERS AND SNOW  
SHOWERS. LOWS IN THE UPPER 20S. HIGHS IN THE MID 40S. WEST WINDS  
AROUND 10 MPH.    
FRIDAY
 
CLOUDY WITH SCATTERED SHOWERS AND SNOW SHOWERS. LOWS IN  
THE MID 20S. HIGHS IN THE MID 40S.    
SATURDAY
 
MOSTLY CLOUDY WITH SCATTERED SHOWERS AND SNOW  
SHOWERS. LOWS IN THE MID 20S. HIGHS IN THE MID 40S.  
 

 
 
WYZ307-232215-  
SNOWY RANGE/MEDICINE BOW NF-  
149 AM MDT SUN APR 23 2017  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS AND  
THUNDERSTORMS AFTER 1200.  
MAX TEMPERATURE.....51-59.  
24 HR TREND......7 DEGREES WARMER.  
MIN HUMIDITY........24-30 PERCENT.  
24 HR TREND......14 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST 15 TO 20 MPH WITH GUSTS TO AROUND 40  
MPH.  
LAL.................1 UNTIL 1200, THEN 2.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 20 TO 25 MPH.  
MIXING HEIGHT.......3600-4800 FT AGL INCREASING TO 5300-7000 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD (80600 KNOT-FT) INCREASING TO VERY GOOD  
(146700 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS UNTIL 2400, THEN  
SHOWERS AND SNOW SHOWERS LIKELY. SNOW  
ACCUMULATION UP TO 1 INCH.  
MIN TEMPERATURE.....30-35.  
24 HR TREND......2 DEGREES COOLER.  
MAX HUMIDITY........76-82 PERCENT.  
24 HR TREND......UNCHANGED.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......WEST AROUND 15 MPH WITH GUSTS TO AROUND 35 MPH.  
LAL.................2 UNTIL 2400, THEN 1.  
CHC OF WETTING RAIN.35 PERCENT.  
TRANSPORT WINDS.....WEST AROUND 20 MPH.  
MIXING HEIGHT.......3100-4300 FT AGL DECREASING TO 900-1600 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....POOR TO GOOD (22700-71800 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
MONDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 1200, THEN MOSTLY CLOUDY.  
CHANCE OF SNOW SHOWERS AND SLIGHT CHANCE OF  
SHOWERS UNTIL 1200, THEN CHANCE OF SHOWERS AND  
THUNDERSTORMS.  
MAX TEMPERATURE.....44-50.  
24 HR TREND......8 DEGREES COOLER.  
MIN HUMIDITY........41-47 PERCENT.  
24 HR TREND......14 PERCENT WETTER.  
20-FOOT WINDS.......WEST AROUND 20 MPH WITH GUSTS TO AROUND 45 MPH.  
LAL.................1 UNTIL 1200, THEN 4.  
CHC OF WETTING RAIN.15 PERCENT.  
TRANSPORT WINDS.....WEST 25 TO 30 MPH.  
MIXING HEIGHT.......3600-4500 FT AGL INCREASING TO 6300-7500 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD (97200 KNOT-FT) INCREASING TO EXCELLENT  
(178300 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
TUESDAY
 
RAIN AND SNOW LIKELY. LOWS IN THE UPPER 20S. HIGHS IN  
THE LOWER 40S. WEST WINDS AROUND 15 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY WITH SCATTERED SHOWERS AND SNOW  
SHOWERS. LOWS IN THE MID 20S. HIGHS AROUND 40. WEST WINDS AROUND  
10 MPH.    
THURSDAY
 
MOSTLY CLOUDY WITH SCATTERED SHOWERS AND SNOW  
SHOWERS. LOWS IN THE MID 20S. HIGHS IN THE UPPER 30S. WEST WINDS  
AROUND 10 MPH.    
FRIDAY
 
CLOUDY WITH SCATTERED SHOWERS AND SNOW SHOWERS. LOWS IN  
THE LOWER 20S. HIGHS IN THE UPPER 30S.    
SATURDAY
 
MOSTLY CLOUDY WITH SCATTERED SHOWERS AND SNOW  
SHOWERS. LOWS IN THE LOWER 20S. HIGHS IN THE UPPER 30S.  
 

 
 
WYZ308-232215-  
LARAMIE VALLEY/SHIRLEY BASIN-  
149 AM MDT SUN APR 23 2017  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS AND  
THUNDERSTORMS AFTER 1200.  
MAX TEMPERATURE.....60-66.  
24 HR TREND......14 DEGREES WARMER.  
MIN HUMIDITY........19-25 PERCENT.  
24 HR TREND......25 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST AROUND 10 MPH INCREASING TO AROUND 20  
MPH IN THE AFTERNOON. GUSTS UP TO 30 MPH.  
LAL.................1 UNTIL 1200, THEN 2.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH INCREASING TO AROUND 25  
MPH IN THE AFTERNOON.  
MIXING HEIGHT.......4000-5900 FT AGL INCREASING TO 6400-8400 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD (63400 KNOT-FT) INCREASING TO VERY GOOD  
(144200 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS  
UNTIL 2400. CHANCE OF SHOWERS.  
MIN TEMPERATURE.....34-39.  
24 HR TREND......4 DEGREES WARMER.  
MAX HUMIDITY........70-76 PERCENT.  
24 HR TREND......7 PERCENT DRIER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......WEST 10 TO 15 MPH AND GUSTY.  
LAL.................2 UNTIL 2400, THEN 1.  
CHC OF WETTING RAIN.20 PERCENT.  
TRANSPORT WINDS.....WEST 15 TO 20 MPH.  
MIXING HEIGHT.......3800-5800 FT AGL DECREASING TO 1200-3100 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....POOR TO GOOD (28200-73400 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
MONDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 1200, THEN MOSTLY CLOUDY.  
SLIGHT CHANCE OF SHOWERS UNTIL 1200, THEN  
CHANCE OF SHOWERS AND THUNDERSTORMS.  
MAX TEMPERATURE.....51-56.  
24 HR TREND......11 DEGREES COOLER.  
MIN HUMIDITY........31-37 PERCENT.  
24 HR TREND......10 PERCENT WETTER.  
20-FOOT WINDS.......WEST AROUND 20 MPH WITH GUSTS TO AROUND 40 MPH.  
LAL.................1 UNTIL 1200, THEN 3.  
CHC OF WETTING RAIN.10 PERCENT.  
TRANSPORT WINDS.....WEST 20 TO 25 MPH.  
MIXING HEIGHT.......4500-5900 FT AGL INCREASING TO 7500-8700 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD (99600 KNOT-FT) INCREASING TO EXCELLENT  
(185000 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
TUESDAY
 
COOLER. CLOUDY WITH SNOW LIKELY AND CHANCE OF RAIN.  
LOWS IN THE LOWER 30S. HIGHS IN THE UPPER 40S. WEST WINDS AROUND  
10 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY WITH SCATTERED SHOWERS AND ISOLATED  
SNOW SHOWERS. LOWS IN THE UPPER 20S. HIGHS IN THE MID 40S. WEST  
WINDS AROUND 10 MPH.    
THURSDAY
 
MOSTLY CLOUDY WITH SCATTERED SHOWERS AND SNOW  
SHOWERS. LOWS IN THE UPPER 20S. HIGHS IN THE MID 40S. WEST WINDS  
AROUND 10 MPH.    
FRIDAY
 
MOSTLY CLOUDY WITH SCATTERED SHOWERS AND SNOW SHOWERS.  
LOWS IN THE UPPER 20S. HIGHS IN THE LOWER 40S.    
SATURDAY
 
MOSTLY CLOUDY WITH SCATTERED SHOWERS AND SNOW  
SHOWERS. LOWS IN THE MID 20S. HIGHS IN THE LOWER 40S.  
 

 
 
WYZ309-232215-  
SOUTH LARAMIE RANGE/MEDICINE BOW NF-  
149 AM MDT SUN APR 23 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1200, THEN PARTLY CLOUDY.  
MAX TEMPERATURE.....60-70.  
24 HR TREND......15 DEGREES WARMER.  
MIN HUMIDITY........21-27 PERCENT.  
24 HR TREND......15 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST 15 TO 20 MPH WITH HIGHER GUSTS.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.  
MIXING HEIGHT.......3500-5300 FT AGL INCREASING TO 5500-7500 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD (63800 KNOT-FT) INCREASING TO VERY GOOD  
(125500 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS  
UNTIL 2400. CHANCE OF SHOWERS.  
MIN TEMPERATURE.....37-42.  
24 HR TREND......6 DEGREES WARMER.  
MAX HUMIDITY........65-71 PERCENT.  
24 HR TREND......5 PERCENT DRIER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......WEST AROUND 15 MPH WITH GUSTS TO AROUND 35 MPH.  
LAL.................2 UNTIL 2400, THEN 1.  
CHC OF WETTING RAIN.10 PERCENT.  
TRANSPORT WINDS.....WEST AROUND 20 MPH.  
MIXING HEIGHT.......3000-5000 FT AGL DECREASING TO 800-2400 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....POOR TO GOOD (28100-64200 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
MONDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 1200, THEN MOSTLY CLOUDY.  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS  
AFTER 1200.  
MAX TEMPERATURE.....52-60.  
24 HR TREND......5 DEGREES COOLER.  
MIN HUMIDITY........28-34 PERCENT.  
24 HR TREND......2 PERCENT WETTER.  
20-FOOT WINDS.......WEST AROUND 20 MPH WITH GUSTS TO AROUND 40 MPH.  
LAL.................1 UNTIL 1200, THEN 3.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....WEST AROUND 25 MPH.  
MIXING HEIGHT.......4400-5800 FT AGL INCREASING TO 7600-9500 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....VERY GOOD (119000 KNOT-FT) INCREASING TO  
EXCELLENT (198500 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
TUESDAY
 
COOLER. CLOUDY WITH RAIN AND SNOW LIKELY. LOWS IN THE  
MID 30S. HIGHS IN THE LOWER 50S. WEST WINDS AROUND 15 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY WITH SCATTERED SHOWERS AND ISOLATED  
SNOW SHOWERS. LOWS AROUND 30. HIGHS IN THE UPPER 40S. WEST WINDS  
AROUND 10 MPH.    
THURSDAY
 
MOSTLY CLOUDY WITH SCATTERED SHOWERS AND SNOW  
SHOWERS. LOWS IN THE LOWER 30S. HIGHS IN THE MID 40S. WEST WINDS  
AROUND 10 MPH.    
FRIDAY
 
MOSTLY CLOUDY WITH SCATTERED SHOWERS AND SNOW SHOWERS.  
LOWS IN THE UPPER 20S. HIGHS IN THE LOWER 40S.    
SATURDAY
 
MOSTLY CLOUDY WITH SCATTERED SHOWERS AND SNOW  
SHOWERS. LOWS IN THE UPPER 20S. HIGHS IN THE LOWER 40S.  
 

 
 
WYZ310-232215-  
PLATTE/GOSHEN/CENTRAL AND EASTERN LARAMIE-  
149 AM MDT SUN APR 23 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1200, THEN PARTLY CLOUDY.  
MAX TEMPERATURE.....69-75.  
24 HR TREND......15 DEGREES WARMER.  
MIN HUMIDITY........16-22 PERCENT.  
24 HR TREND......10 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 15 MPH.  
MIXING HEIGHT.......4000-5500 FT AGL INCREASING TO 5800-7800 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....FAIR TO GOOD (50400-99800 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 2400, THEN MOSTLY CLOUDY.  
CHANCE OF SHOWERS AFTER 2400.  
MIN TEMPERATURE.....40-45.  
24 HR TREND......8 DEGREES WARMER.  
MAX HUMIDITY........65-71 PERCENT.  
24 HR TREND......12 PERCENT DRIER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......WEST AROUND 10 MPH AND GUSTY.  
LAL.................2 UNTIL 2400, THEN 1.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....WEST AROUND 15 MPH.  
MIXING HEIGHT.......2700-4300 FT AGL DECREASING TO 200-1000 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....POOR TO FAIR (7300-43600 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
MONDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 1200, THEN MOSTLY CLOUDY.  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS  
AFTER 1200.  
MAX TEMPERATURE.....61-66.  
24 HR TREND......12 DEGREES COOLER.  
MIN HUMIDITY........23-29 PERCENT.  
24 HR TREND......8 PERCENT WETTER.  
20-FOOT WINDS.......WEST AROUND 15 MPH WITH GUSTS TO AROUND 35 MPH.  
LAL.................1 UNTIL 1200, THEN 3.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....WEST AROUND 20 MPH.  
MIXING HEIGHT.......4700-5600 FT AGL INCREASING TO 9100-10200 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD (90700 KNOT-FT) INCREASING TO EXCELLENT  
(165500 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
TUESDAY
 
COOLER. CLOUDY WITH RAIN LIKELY. LOWS IN THE UPPER  
30S. HIGHS IN THE MID 50S. NORTHWEST WINDS AROUND 10 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY WITH SCATTERED SHOWERS. LOWS IN THE  
LOWER 30S. HIGHS IN THE LOWER 50S. NORTHWEST WINDS AROUND 5 MPH.    
THURSDAY
 
MOSTLY CLOUDY WITH SCATTERED SHOWERS AND ISOLATED  
SNOW SHOWERS. LOWS IN THE MID 30S. HIGHS AROUND 50. WINDS  
GENERALLY LESS THAN 10 MPH.    
FRIDAY
 
CLOUDY WITH SCATTERED SHOWERS AND SNOW SHOWERS. LOWS IN  
THE LOWER 30S. HIGHS IN THE UPPER 40S.    
SATURDAY
 
MOSTLY CLOUDY WITH SCATTERED SHOWERS AND SNOW  
SHOWERS. LOWS IN THE LOWER 30S. HIGHS IN THE UPPER 40S.  
 

 
 
NEZ311-232215-  
PINE RIDGE/NEBRASKA NATIONAL FOREST/OGLALA NATIONAL GRASSLANDS-  
149 AM MDT SUN APR 23 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1200, THEN PARTLY CLOUDY.  
MAX TEMPERATURE.....73-78.  
24 HR TREND......14 DEGREES WARMER.  
MIN HUMIDITY........20 PERCENT.  
24 HR TREND......7 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHWEST AROUND 15 MPH WITH HIGHER GUSTS.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH.  
MIXING HEIGHT.......4300-5100 FT AGL INCREASING TO 6400-7400 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD TO VERY GOOD (74000-114600 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 2400, THEN CLOUDY. SLIGHT  
CHANCE OF SHOWERS AFTER 2400.  
MIN TEMPERATURE.....41-46.  
24 HR TREND......5 DEGREES WARMER.  
MAX HUMIDITY........76-82 PERCENT.  
24 HR TREND......UNCHANGED.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......SOUTHWEST AROUND 15 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......3600-4500 FT AGL DECREASING TO 800-1900 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....POOR TO FAIR (18600-59500 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
MONDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 1200, THEN MOSTLY CLOUDY.  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS  
AFTER 1200.  
MAX TEMPERATURE.....61-66.  
24 HR TREND......12 DEGREES COOLER.  
MIN HUMIDITY........29-35 PERCENT.  
24 HR TREND......14 PERCENT WETTER.  
20-FOOT WINDS.......NORTHWEST AROUND 15 MPH WITH HIGHER GUSTS.  
LAL.................1 UNTIL 1200, THEN 3.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 20 MPH.  
MIXING HEIGHT.......4800-5400 FT AGL INCREASING TO 8200-9200 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD TO VERY GOOD (87500-134900 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
TUESDAY
 
COOLER. RAIN LIKELY. LOWS IN THE UPPER 30S. HIGHS IN  
THE LOWER 50S. NORTHEAST WINDS AROUND 10 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY WITH SCATTERED SHOWERS. LOWS IN THE  
UPPER 20S. HIGHS IN THE LOWER 50S. EAST WINDS AROUND 5 MPH.    
THURSDAY
 
CLOUDY WITH SCATTERED SHOWERS AND SNOW SHOWERS. LOWS  
IN THE LOWER 30S. HIGHS IN THE UPPER 40S. EAST WINDS AROUND  
10 MPH.    
FRIDAY
 
CLOUDY WITH SCATTERED SHOWERS AND SNOW SHOWERS. LOWS IN  
THE LOWER 30S. HIGHS IN THE UPPER 40S.    
SATURDAY
 
MOSTLY CLOUDY WITH SCATTERED SHOWERS AND SNOW  
SHOWERS. LOWS IN THE LOWER 30S. HIGHS AROUND 50.  
 

 
 
NEZ312-232215-  
BOX BUTTE/SOUTH SIOUX-  
149 AM MDT SUN APR 23 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1200, THEN PARTLY CLOUDY.  
MAX TEMPERATURE.....72-77.  
24 HR TREND......13 DEGREES WARMER.  
MIN HUMIDITY........21 PERCENT.  
24 HR TREND......7 PERCENT DRIER.  
20-FOOT WINDS.......SOUTH 10 TO 15 MPH WITH HIGHER GUSTS.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH 15 TO 20 MPH.  
MIXING HEIGHT.......4200-4800 FT AGL INCREASING TO 6000-6900 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....FAIR TO VERY GOOD (58200-105900 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 2400, THEN MOSTLY CLOUDY.  
SLIGHT CHANCE OF SHOWERS AFTER 2400.  
MIN TEMPERATURE.....39-44.  
24 HR TREND......5 DEGREES WARMER.  
MAX HUMIDITY........78-84 PERCENT.  
24 HR TREND......UNCHANGED.  
HUMIDITY RECOVERY...GOOD.  
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.......2800-3700 FT AGL DECREASING TO 200-900 FT AGL  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....POOR TO FAIR (5900-44000 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
MONDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 1200, THEN MOSTLY CLOUDY.  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS  
AFTER 1200.  
MAX TEMPERATURE.....63-68.  
24 HR TREND......10 DEGREES COOLER.  
MIN HUMIDITY........24-30 PERCENT.  
24 HR TREND......9 PERCENT WETTER.  
20-FOOT WINDS.......NORTHWEST AROUND 15 MPH WITH HIGHER GUSTS.  
LAL.................1 UNTIL 1200, THEN 3.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 20 MPH.  
MIXING HEIGHT.......4600-5500 FT AGL INCREASING TO 8900-10100 FT  
AGL IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD (81700 KNOT-FT) INCREASING TO VERY GOOD  
(143600 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
TUESDAY
 
COOLER. CLOUDY WITH RAIN LIKELY. LOWS IN THE UPPER  
30S. HIGHS IN THE MID 50S. NORTHWEST WINDS AROUND 5 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY WITH SCATTERED SHOWERS. LOWS IN THE  
UPPER 20S. HIGHS IN THE LOWER 50S. NORTHEAST WINDS AROUND 5 MPH.    
THURSDAY
 
MOSTLY CLOUDY WITH SCATTERED SHOWERS AND ISOLATED  
SNOW SHOWERS. LOWS IN THE LOWER 30S. HIGHS AROUND 50. WINDS  
GENERALLY LESS THAN 10 MPH.    
FRIDAY
 
CLOUDY WITH NUMEROUS SHOWERS AND SCATTERED SNOW  
SHOWERS. LOWS IN THE LOWER 30S. HIGHS IN THE UPPER 40S.    
SATURDAY
 
CLOUDY WITH SCATTERED SHOWERS AND SNOW SHOWERS. LOWS  
IN THE LOWER 30S. HIGHS IN THE UPPER 40S.  
 

 
 
NEZ313-232215-  
SCOTTS BLUFF NATIONAL MONUMENT/WILDCAT HILLS-  
149 AM MDT SUN APR 23 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1200, THEN PARTLY CLOUDY.  
MAX TEMPERATURE.....71-76.  
24 HR TREND......12 DEGREES WARMER.  
MIN HUMIDITY........18-24 PERCENT.  
24 HR TREND......15 PERCENT DRIER.  
20-FOOT WINDS.......SOUTH AROUND 15 MPH WITH HIGHER GUSTS.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 20 MPH.  
MIXING HEIGHT.......3600-4400 FT AGL INCREASING TO 5200-6400 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD TO VERY GOOD (60100-101100 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 2400, THEN MOSTLY CLOUDY.  
SLIGHT CHANCE OF SHOWERS AFTER 2400.  
MIN TEMPERATURE.....41-46.  
24 HR TREND......8 DEGREES WARMER.  
MAX HUMIDITY........71-77 PERCENT.  
24 HR TREND......6 PERCENT DRIER.  
HUMIDITY RECOVERY...GOOD.  
20-FOOT WINDS.......SOUTH AROUND 15 MPH SHIFTING TO THE WEST AFTER  
MIDNIGHT. GUSTS UP TO 25 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 15 MPH SHIFTING TO THE WEST AFTER  
MIDNIGHT.  
MIXING HEIGHT.......2400-3000 FT AGL DECREASING TO 200 FT AGL AFTER  
MIDNIGHT.  
SMOKE DISPERSAL.....POOR (2500-37600 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
MONDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS AFTER 1200.  
MAX TEMPERATURE.....65-70.  
24 HR TREND......4 DEGREES COOLER.  
MIN HUMIDITY........22-28 PERCENT.  
24 HR TREND......6 PERCENT WETTER.  
20-FOOT WINDS.......NORTHWEST 15 TO 20 MPH WITH GUSTS TO AROUND 35  
MPH.  
LAL.................1 UNTIL 1200, THEN 2.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 20 MPH.  
MIXING HEIGHT.......4800-5300 FT AGL INCREASING TO 9300-9900 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....GOOD (94600 KNOT-FT) INCREASING TO EXCELLENT  
(161600 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
TUESDAY
 
COOLER. CLOUDY WITH RAIN LIKELY. LOWS IN THE LOWER  
40S. HIGHS IN THE UPPER 50S. NORTHWEST WINDS AROUND 10 MPH.    
WEDNESDAY
 
MOSTLY CLOUDY WITH SCATTERED SHOWERS. LOWS IN THE  
LOWER 30S. HIGHS IN THE MID 50S. NORTH WINDS AROUND 5 MPH.    
THURSDAY
 
MOSTLY CLOUDY WITH SCATTERED SHOWERS. LOWS IN THE MID  
30S. HIGHS IN THE LOWER 50S. SOUTHEAST WINDS AROUND 10 MPH.    
FRIDAY
 
CLOUDY WITH NUMEROUS SHOWERS AND SCATTERED SNOW  
SHOWERS. LOWS IN THE LOWER 30S. HIGHS IN THE UPPER 40S.    
SATURDAY
 
MOSTLY CLOUDY WITH SCATTERED SHOWERS AND SNOW  
SHOWERS. LOWS IN THE LOWER 30S. HIGHS AROUND 50.  
 

 
 
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