576  
FNUS55 KCYS 210915  
FWFCYS  
 
FIRE WEATHER PLANNING FORECAST FOR SOUTHEAST WYOMING/WESTERN NEBRASKA  
NATIONAL WEATHER SERVICE CHEYENNE WY  
215 AM MST THU FEB 21 2019  
   
DISCUSSION
 
 
LIMITED FIRE WEATHER CONCERNS FOR THE NEXT SEVERAL DAYS WITH INCREASING  
MOISTURE TO THE REGION AND LIGHT BUT WIDESPREAD SNOW SHOWERS EXPECTED  
DURING THIS TIME FRAME. MINIMUM RELATIVE HUMIDITY VALUES WILL ONLY FALL  
INTO THE 50 TO 60 PERCENTILES THE NEXT FEW DAYS WITH WINDS REMAINING  
BELOW ANY FIRE WEATHER THRESHOLDS. TEMPERATURES WILL INCREASE SLOWLY  
INTO OVER THE WEEKEND AND EARLY NEXT WEEK BEFORE MORE SNOW AND COLDER  
TEMPERATURES OCCUR ONCE AGAIN. FIRE WEATHER CONCERNS WILL LOOK TO  
REMAIN LIMITED THROUGH THE NEXT WEEK.  
 
WYZ301-212315-  
NIOBRARA/LOWER ELEVATIONS OF CONVERSE/THUNDER BASIN NATIONAL  
GRASSLAND-  
215 AM MST THU FEB 21 2019  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SNOW SHOWERS LIKELY. SNOW  
ACCUMULATION AROUND 1 INCH.  
MAX TEMPERATURE.....17-22.  
24 HR TREND......6 DEGREES COOLER.  
MIN HUMIDITY........66-72 PERCENT.  
24 HR TREND......35 PERCENT WETTER.  
20-FOOT WINDS.......NORTHEAST 5 TO 10 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.25 PERCENT.  
TRANSPORT WINDS.....EAST AROUND 10 MPH INCREASING TO AROUND 20 MPH  
IN THE AFTERNOON.  
MIXING HEIGHT.......400-900 FT AGL INCREASING TO 2600-3400 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR TO FAIR (5900-47200 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........CLOUDY. SNOW SHOWERS LIKELY UNTIL 0500. CHANCE  
OF SNOW SHOWERS AFTER 0500. PATCHY FOG AFTER  
1900. SNOW ACCUMULATION OF 1 TO 2 INCHES.  
MIN TEMPERATURE.....5-10.  
24 HR TREND......1 DEGREE WARMER.  
MAX HUMIDITY........91-97 PERCENT.  
24 HR TREND......9 PERCENT WETTER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......EAST 5 TO 10 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.50 PERCENT.  
TRANSPORT WINDS.....EAST 15 TO 20 MPH.  
MIXING HEIGHT.......1100-2600 FT AGL.  
SMOKE DISPERSAL.....POOR (18200-39500 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FRIDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. PATCHY FOG UNTIL 0900. CHANCE OF  
SNOW SHOWERS UNTIL 1700.  
MAX TEMPERATURE.....19-24.  
24 HR TREND......1 DEGREE WARMER.  
MIN HUMIDITY........61-67 PERCENT.  
24 HR TREND......6 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHEAST AROUND 5 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.15 PERCENT.  
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH SHIFTING TO THE SOUTH  
IN THE AFTERNOON.  
MIXING HEIGHT.......1000-2600 FT AGL.  
SMOKE DISPERSAL.....POOR (11700-15800 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
SATURDAY
 
MOSTLY CLEAR. LOWS AROUND 5. HIGHS IN THE UPPER 20S.  
WEST WINDS AROUND 10 MPH.    
SUNDAY
 
PARTLY CLOUDY. LOWS AROUND 7. HIGHS IN THE LOWER 20S.  
NORTHWEST WINDS AROUND 10 MPH.    
MONDAY
 
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 4. HIGHS IN THE MID 20S. SOUTHEAST WINDS AROUND 10 MPH.    
TUESDAY
 
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 4. HIGHS IN THE LOWER 20S.    
WEDNESDAY
 
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SNOW SHOWERS.  
LOWS AROUND 6. HIGHS IN THE MID 20S.  
 

 
 
WYZ302-212315-  
NORTH LARAMIE RANGE/MEDICINE BOW NF-  
215 AM MST THU FEB 21 2019  
   
TODAY
 
 
SKY/WEATHER.........CLOUDY. CHANCE OF SNOW SHOWERS UNTIL 1100, THEN  
SNOW SHOWERS LIKELY UNTIL 1700. SNOW SHOWERS  
AFTER 1700. PATCHY FOG AFTER 1600. SNOW  
ACCUMULATION OF 1 TO 2 INCHES.  
MAX TEMPERATURE.....14-19.  
24 HR TREND......1 DEGREE COOLER.  
MIN HUMIDITY........66-72 PERCENT.  
24 HR TREND......12 PERCENT WETTER.  
20-FOOT WINDS.......EAST AROUND 10 MPH WITH HIGHER GUSTS.  
LAL.................1.  
CHC OF WETTING RAIN.35 PERCENT.  
TRANSPORT WINDS.....EAST 15 TO 20 MPH.  
MIXING HEIGHT.......800-1400 FT AGL INCREASING TO 2300-3400 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR TO FAIR (13100-53400 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........CLOUDY. PATCHY FOG. SNOW SHOWERS UNTIL 0500.  
CHANCE OF SNOW SHOWERS AFTER 0500. SNOW  
ACCUMULATION OF 1 TO 3 INCHES.  
MIN TEMPERATURE.....3-8.  
24 HR TREND......2 DEGREES WARMER.  
MAX HUMIDITY........94-100 PERCENT.  
24 HR TREND......UNCHANGED.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......EAST AROUND 10 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.65 PERCENT.  
TRANSPORT WINDS.....SOUTHEAST 15 TO 20 MPH.  
MIXING HEIGHT.......700-2400 FT AGL.  
SMOKE DISPERSAL.....POOR (13800-30500 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FRIDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. PATCHY FOG UNTIL 0900. CHANCE OF  
SNOW SHOWERS UNTIL 1700, THEN CHANCE OF  
FLURRIES.  
MAX TEMPERATURE.....20-25.  
24 HR TREND......6 DEGREES WARMER.  
MIN HUMIDITY........62-68 PERCENT.  
24 HR TREND......1 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHEAST AROUND 5 MPH SHIFTING TO THE WEST IN  
THE AFTERNOON. GUSTS UP TO 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.10 PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 10 MPH SHIFTING TO THE SOUTHWEST  
IN THE AFTERNOON.  
MIXING HEIGHT.......600-1200 FT AGL INCREASING TO 1900-3500 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR TO FAIR (8800-40200 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
SATURDAY
 
MOSTLY CLEAR. CHANCE OF FLURRIES. LOWS AROUND 5.  
HIGHS IN THE LOWER 20S. WEST WINDS AROUND 15 MPH.    
SUNDAY
 
PARTLY CLOUDY. LOWS AROUND 12. HIGHS IN THE UPPER 20S.  
WEST WINDS AROUND 20 MPH.    
MONDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 13. HIGHS AROUND 30. SOUTHWEST WINDS AROUND 15 MPH.    
TUESDAY
 
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 14. HIGHS IN THE LOWER 30S.    
WEDNESDAY
 
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SNOW SHOWERS.  
LOWS AROUND 16. HIGHS AROUND 30.  
 

 
 
WYZ303-212315-  
CENTRAL AND NORTHERN CARBON/FERRIS-SEMINOE-SHIRLEY MOUNTAINS-  
215 AM MST THU FEB 21 2019  
   
TODAY
 
 
SKY/WEATHER.........CLOUDY. CHANCE OF SNOW SHOWERS UNTIL 1100, THEN  
SNOW SHOWERS LIKELY. SNOW ACCUMULATION UP TO 2  
INCHES.  
MAX TEMPERATURE.....17-22.  
24 HR TREND......1 DEGREE WARMER.  
MIN HUMIDITY........67-73 PERCENT.  
24 HR TREND......6 PERCENT WETTER.  
20-FOOT WINDS.......EAST AROUND 10 MPH WITH HIGHER GUSTS.  
LAL.................1.  
CHC OF WETTING RAIN.25 PERCENT.  
TRANSPORT WINDS.....EAST 15 TO 20 MPH.  
MIXING HEIGHT.......600-1100 FT AGL INCREASING TO 2600-3500 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR TO FAIR (10000-51900 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........CLOUDY. PATCHY FOG. SNOW SHOWERS LIKELY UNTIL  
0500. CHANCE OF SNOW SHOWERS AFTER 0500. SNOW  
ACCUMULATION UP TO 3 INCHES.  
MIN TEMPERATURE.....6-11.  
24 HR TREND......6 DEGREES WARMER.  
MAX HUMIDITY........87-93 PERCENT.  
24 HR TREND......4 PERCENT WETTER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......EAST AROUND 10 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.45 PERCENT.  
TRANSPORT WINDS.....EAST 15 TO 20 MPH.  
MIXING HEIGHT.......800-2000 FT AGL.  
SMOKE DISPERSAL.....POOR (18400-28600 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FRIDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. PATCHY FOG UNTIL 0900. CHANCE OF  
SNOW SHOWERS UNTIL 1700.  
MAX TEMPERATURE.....19-24.  
24 HR TREND......2 DEGREES WARMER.  
MIN HUMIDITY........66-72 PERCENT.  
24 HR TREND......2 PERCENT DRIER.  
20-FOOT WINDS.......NORTHEAST AROUND 5 MPH SHIFTING TO THE WEST IN  
THE AFTERNOON. GUSTS UP TO 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 10 MPH INCREASING TO WEST AROUND  
20 MPH IN THE AFTERNOON.  
MIXING HEIGHT.......600-1300 FT AGL INCREASING TO 2700-4200 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR TO FAIR (7800-49100 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
SATURDAY
 
PARTLY CLOUDY. LOWS AROUND 3. HIGHS AROUND 20.  
SOUTHWEST WINDS AROUND 15 MPH.    
SUNDAY
 
MOSTLY CLOUDY. LOWS AROUND 10. HIGHS IN THE UPPER 20S.  
SOUTHWEST WINDS AROUND 15 MPH.    
MONDAY
 
MOSTLY CLOUDY. LOWS AROUND 16. HIGHS IN THE LOWER 30S.  
SOUTHWEST WINDS AROUND 15 MPH.    
TUESDAY
 
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 20. HIGHS IN THE LOWER 30S.    
WEDNESDAY
 
MOSTLY CLOUDY WITH CHANCE OF SNOW SHOWERS. LOWS  
AROUND 20. HIGHS IN THE LOWER 30S.  
 

 
 
WYZ304-212315-  
SOUTHWEST CARBON COUNTY-  
215 AM MST THU FEB 21 2019  
   
TODAY
 
 
SKY/WEATHER.........CLOUDY. CHANCE OF SNOW SHOWERS UNTIL 1700, THEN  
SNOW SHOWERS LIKELY. SNOW ACCUMULATION UP TO 1  
INCH.  
MAX TEMPERATURE.....19-25.  
24 HR TREND......5 DEGREES WARMER.  
MIN HUMIDITY........67-73 PERCENT.  
24 HR TREND......4 PERCENT WETTER.  
20-FOOT WINDS.......NORTHEAST 5 TO 10 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.20 PERCENT.  
TRANSPORT WINDS.....EAST AROUND 10 MPH.  
MIXING HEIGHT.......500-1400 FT AGL INCREASING TO 2600-4000 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (7500-24500 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........CLOUDY. SNOW SHOWERS LIKELY UNTIL 0500. CHANCE  
OF SNOW SHOWERS AFTER 0500. PATCHY FOG AFTER  
2000 UNTIL 2200. PATCHY BLOWING SNOW AFTER 2300  
UNTIL 0200. PATCHY FOG AFTER 2400. SNOW  
ACCUMULATION OF 1 TO 2 INCHES.  
MIN TEMPERATURE.....8-13.  
24 HR TREND......6 DEGREES WARMER.  
MAX HUMIDITY........92-98 PERCENT.  
24 HR TREND......4 PERCENT DRIER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......NORTHEAST AROUND 10 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.45 PERCENT.  
TRANSPORT WINDS.....EAST 10 TO 15 MPH.  
MIXING HEIGHT.......600-1200 FT AGL.  
SMOKE DISPERSAL.....POOR (9300-11400 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FRIDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. PATCHY FOG UNTIL 0900. CHANCE OF  
SNOW SHOWERS UNTIL 1700.  
MAX TEMPERATURE.....20-26.  
24 HR TREND......2 DEGREES COOLER.  
MIN HUMIDITY........62-68 PERCENT.  
24 HR TREND......UNCHANGED.  
20-FOOT WINDS.......NORTHWEST AROUND 5 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.  
MIXING HEIGHT.......600-1500 FT AGL INCREASING TO 2600-3700 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (7100-33600 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
SATURDAY
 
PARTLY CLOUDY. LOWS AROUND 2 BELOW. HIGHS IN THE  
LOWER 20S. SOUTHWEST WINDS AROUND 10 MPH.    
SUNDAY
 
MOSTLY CLOUDY. LOWS AROUND 6. HIGHS IN THE UPPER 20S.  
SOUTHWEST WINDS AROUND 10 MPH.    
MONDAY
 
MOSTLY CLOUDY. LOWS AROUND 13. HIGHS IN THE LOWER 30S.  
SOUTHWEST WINDS AROUND 15 MPH.    
TUESDAY
 
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 20. HIGHS IN THE MID 30S.    
WEDNESDAY
 
MOSTLY CLOUDY WITH CHANCE OF SNOW SHOWERS. LOWS  
AROUND 20. HIGHS IN THE MID 30S.  
 

 
 
WYZ305-212315-  
SIERRA MADRE RANGE/MEDICINE BOW NF-  
215 AM MST THU FEB 21 2019  
   
TODAY
 
 
SKY/WEATHER.........CLOUDY. CHANCE OF SNOW SHOWERS UNTIL 1100, THEN  
SNOW SHOWERS LIKELY. SNOW ACCUMULATION UP TO 1  
INCH.  
MAX TEMPERATURE.....19-25.  
24 HR TREND......6 DEGREES WARMER.  
MIN HUMIDITY........57-63 PERCENT.  
24 HR TREND......7 PERCENT DRIER.  
20-FOOT WINDS.......EAST AROUND 5 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.30 PERCENT.  
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH.  
MIXING HEIGHT.......600-1100 FT AGL INCREASING TO 4100-5600 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (8000-33200 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........CLOUDY. SNOW SHOWERS LIKELY UNTIL 0500. CHANCE  
OF SNOW SHOWERS AFTER 0500. PATCHY FOG AFTER  
1900. SNOW ACCUMULATION OF 1 TO 2 INCHES.  
MIN TEMPERATURE.....10-15.  
24 HR TREND......11 DEGREES WARMER.  
MAX HUMIDITY........84-90 PERCENT.  
24 HR TREND......9 PERCENT DRIER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......SOUTHEAST 5 TO 10 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.50 PERCENT.  
TRANSPORT WINDS.....SOUTHEAST 10 TO 15 MPH.  
MIXING HEIGHT.......600-1400 FT AGL.  
SMOKE DISPERSAL.....POOR (10000-11400 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FRIDAY
 
 
SKY/WEATHER.........CLOUDY. PATCHY FOG UNTIL 0900. CHANCE OF SNOW  
SHOWERS.  
MAX TEMPERATURE.....20-26.  
24 HR TREND......1 DEGREE WARMER.  
MIN HUMIDITY........65-71 PERCENT.  
24 HR TREND......12 PERCENT WETTER.  
20-FOOT WINDS.......SOUTHWEST AROUND 5 MPH SHIFTING TO THE WEST IN  
THE AFTERNOON. GUSTS UP TO 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.15 PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH.  
MIXING HEIGHT.......1300-2200 FT AGL INCREASING TO 3800-5800 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (24300 KNOT-FT) INCREASING TO GOOD (87300  
KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
SATURDAY
 
PARTLY CLOUDY WITH CHANCE OF SNOW SHOWERS. LOWS  
AROUND 1. HIGHS AROUND 19. SOUTHWEST WINDS AROUND 10 MPH.    
SUNDAY
 
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 8. HIGHS IN THE UPPER 20S. SOUTHWEST WINDS AROUND 15 MPH.    
MONDAY
 
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 14. HIGHS IN THE LOWER 30S. SOUTHWEST WINDS AROUND 10 MPH.   
TUESDAY
 
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 20. HIGHS IN THE LOWER 30S.    
WEDNESDAY
 
MOSTLY CLOUDY WITH CHANCE OF SNOW SHOWERS. LOWS IN  
THE LOWER 20S. HIGHS IN THE LOWER 30S.  
 

 
 
WYZ306-212315-  
UPPER NORTH PLATTE RIVER BASIN-  
215 AM MST THU FEB 21 2019  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS  
UNTIL 0700, THEN CHANCE OF SNOW SHOWERS.  
MAX TEMPERATURE.....22-27.  
24 HR TREND......5 DEGREES WARMER.  
MIN HUMIDITY........56-62 PERCENT.  
24 HR TREND......6 PERCENT WETTER.  
20-FOOT WINDS.......EAST AROUND 5 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.20 PERCENT.  
TRANSPORT WINDS.....EAST AROUND 10 MPH.  
MIXING HEIGHT.......600-1100 FT AGL INCREASING TO 3800-5200 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (7000-39500 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........CLOUDY. CHANCE OF SNOW SHOWERS.  
MIN TEMPERATURE.....10-15.  
24 HR TREND......9 DEGREES WARMER.  
MAX HUMIDITY........84-90 PERCENT.  
24 HR TREND......4 PERCENT WETTER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......EAST AROUND 5 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.30 PERCENT.  
TRANSPORT WINDS.....SOUTHEAST 10 TO 15 MPH.  
MIXING HEIGHT.......900-1400 FT AGL.  
SMOKE DISPERSAL.....POOR (10900-13500 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FRIDAY
 
 
SKY/WEATHER.........CLOUDY. CHANCE OF SNOW SHOWERS.  
MAX TEMPERATURE.....23-28.  
24 HR TREND......1 DEGREE WARMER.  
MIN HUMIDITY........64-70 PERCENT.  
24 HR TREND......6 PERCENT WETTER.  
20-FOOT WINDS.......WEST AROUND 5 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 10 MPH INCREASING TO WEST AROUND  
20 MPH IN THE AFTERNOON.  
MIXING HEIGHT.......500-1100 FT AGL INCREASING TO 4400-6300 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (5900 KNOT-FT) INCREASING TO GOOD (86400  
KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
SATURDAY
 
PARTLY CLOUDY WITH CHANCE OF SNOW SHOWERS. LOWS  
AROUND 2. HIGHS IN THE LOWER 20S. SOUTHWEST WINDS AROUND 10 MPH.    
SUNDAY
 
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 10. HIGHS IN THE UPPER 20S. SOUTHWEST WINDS AROUND 15 MPH.   
MONDAY
 
MOSTLY CLOUDY. LOWS AROUND 17. HIGHS IN THE MID 30S.  
SOUTHWEST WINDS AROUND 10 MPH.    
TUESDAY
 
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
IN THE LOWER 20S. HIGHS IN THE MID 30S.    
WEDNESDAY
 
MOSTLY CLOUDY WITH CHANCE OF SNOW SHOWERS. LOWS IN  
THE LOWER 20S. HIGHS IN THE MID 30S.  
 

 
 
WYZ307-212315-  
SNOWY RANGE/MEDICINE BOW NF-  
215 AM MST THU FEB 21 2019  
   
TODAY
 
 
SKY/WEATHER.........CLOUDY. CHANCE OF SNOW SHOWERS UNTIL 1100, THEN  
SNOW SHOWERS LIKELY UNTIL 1700, THEN SNOW  
SHOWERS. PATCHY FOG AFTER 1700. SNOW  
ACCUMULATION UP TO 1 INCH.  
MAX TEMPERATURE.....16-22.  
24 HR TREND......6 DEGREES WARMER.  
MIN HUMIDITY........58-64 PERCENT.  
24 HR TREND......1 PERCENT WETTER.  
20-FOOT WINDS.......SOUTHEAST AROUND 10 MPH WITH HIGHER GUSTS.  
LAL.................1.  
CHC OF WETTING RAIN.35 PERCENT.  
TRANSPORT WINDS.....SOUTHEAST AROUND 15 MPH.  
MIXING HEIGHT.......500-1100 FT AGL INCREASING TO 2900-4900 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR TO FAIR (10900-48900 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........CLOUDY. PATCHY FOG UNTIL 0200. PATCHY BLOWING  
SNOW AFTER 2000 UNTIL 0300. PATCHY FOG AFTER  
0400. SNOW SHOWERS UNTIL 2300. SNOW SHOWERS  
LIKELY AFTER 2300 UNTIL 0500. CHANCE OF SNOW  
SHOWERS AFTER 0500. SNOW ACCUMULATION UP TO 3  
INCHES.  
MIN TEMPERATURE.....5-11.  
24 HR TREND......5 DEGREES WARMER.  
MAX HUMIDITY........88-94 PERCENT.  
24 HR TREND......9 PERCENT DRIER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......SOUTHEAST AROUND 10 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.60 PERCENT.  
TRANSPORT WINDS.....SOUTHEAST AROUND 15 MPH.  
MIXING HEIGHT.......600-1500 FT AGL.  
SMOKE DISPERSAL.....POOR (14600-14900 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FRIDAY
 
 
SKY/WEATHER.........CLOUDY. PATCHY FOG UNTIL 0700. CHANCE OF SNOW  
SHOWERS.  
MAX TEMPERATURE.....21-27.  
24 HR TREND......5 DEGREES WARMER.  
MIN HUMIDITY........58-64 PERCENT.  
24 HR TREND......2 PERCENT DRIER.  
20-FOOT WINDS.......SOUTH AROUND 5 MPH SHIFTING TO THE WEST IN THE  
AFTERNOON. GUSTS UP TO 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.15 PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.  
MIXING HEIGHT.......600-1500 FT AGL INCREASING TO 5800-7800 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (14000 KNOT-FT) INCREASING TO VERY GOOD  
(129100 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
SATURDAY
 
PARTLY CLOUDY WITH CHANCE OF SNOW SHOWERS. LOWS  
AROUND 1. HIGHS AROUND 18. WEST WINDS AROUND 15 MPH.    
SUNDAY
 
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 8. HIGHS IN THE MID 20S. WEST WINDS AROUND 20 MPH.    
MONDAY
 
PARTLY CLOUDY. LOWS AROUND 14. HIGHS IN THE LOWER 30S.  
SOUTHWEST WINDS AROUND 15 MPH.    
TUESDAY
 
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
IN THE LOWER 20S. HIGHS IN THE LOWER 30S.    
WEDNESDAY
 
MOSTLY CLOUDY WITH CHANCE OF SNOW SHOWERS. LOWS IN  
THE LOWER 20S. HIGHS IN THE LOWER 30S.  
 

 
 
WYZ308-212315-  
LARAMIE VALLEY/SHIRLEY BASIN-  
215 AM MST THU FEB 21 2019  
   
TODAY
 
 
SKY/WEATHER.........CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS UNTIL  
0700, THEN CHANCE OF SNOW SHOWERS UNTIL 1700,  
THEN SNOW SHOWERS LIKELY. SNOW ACCUMULATION UP  
TO 1 INCH.  
MAX TEMPERATURE.....17-22.  
24 HR TREND......UNCHANGED.  
MIN HUMIDITY........62-68 PERCENT.  
24 HR TREND......6 PERCENT WETTER.  
20-FOOT WINDS.......EAST 10 TO 15 MPH WITH HIGHER GUSTS.  
LAL.................1.  
CHC OF WETTING RAIN.20 PERCENT.  
TRANSPORT WINDS.....EAST AROUND 20 MPH.  
MIXING HEIGHT.......700-1200 FT AGL INCREASING TO 2800-3400 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR TO FAIR (12500-59300 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........CLOUDY. SNOW SHOWERS LIKELY UNTIL 0500. CHANCE  
OF SNOW SHOWERS AFTER 0500. PATCHY FOG AFTER  
1900. SNOW ACCUMULATION UP TO 1 INCH.  
MIN TEMPERATURE.....6-11.  
24 HR TREND......6 DEGREES WARMER.  
MAX HUMIDITY........88-94 PERCENT.  
24 HR TREND......9 PERCENT DRIER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......EAST AROUND 10 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.35 PERCENT.  
TRANSPORT WINDS.....EAST 15 TO 20 MPH.  
MIXING HEIGHT.......1000-2200 FT AGL.  
SMOKE DISPERSAL.....POOR (18100-30700 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FRIDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. PATCHY FOG UNTIL 0700. CHANCE OF  
SNOW SHOWERS UNTIL 1700, THEN SLIGHT CHANCE OF  
SNOW SHOWERS.  
MAX TEMPERATURE.....22-28.  
24 HR TREND......5 DEGREES WARMER.  
MIN HUMIDITY........59-65 PERCENT.  
24 HR TREND......2 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHEAST AROUND 5 MPH SHIFTING TO THE  
NORTHWEST IN THE AFTERNOON. GUSTS UP TO 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.5 PERCENT.  
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH SHIFTING TO THE WEST IN  
THE AFTERNOON.  
MIXING HEIGHT.......1000 FT AGL INCREASING TO 3400-5400 FT AGL IN  
THE AFTERNOON.  
SMOKE DISPERSAL.....POOR TO FAIR (10700-45500 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
SATURDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 3. HIGHS IN THE LOWER 20S. WEST WINDS AROUND 15 MPH.    
SUNDAY
 
PARTLY CLOUDY. LOWS AROUND 11. HIGHS IN THE UPPER 20S.  
WEST WINDS AROUND 15 MPH.    
MONDAY
 
PARTLY CLOUDY. LOWS AROUND 15. HIGHS IN THE MID 30S.  
SOUTHWEST WINDS AROUND 15 MPH.    
TUESDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 19. HIGHS IN THE UPPER 30S.    
WEDNESDAY
 
MOSTLY CLOUDY WITH CHANCE OF SNOW SHOWERS. LOWS  
AROUND 20. HIGHS IN THE MID 30S.  
 

 
 
WYZ309-212315-  
SOUTH LARAMIE RANGE/MEDICINE BOW NF-  
215 AM MST THU FEB 21 2019  
   
TODAY
 
 
SKY/WEATHER.........CLOUDY. SNOW SHOWERS LIKELY UNTIL 1200, THEN  
SNOW SHOWERS. PATCHY FOG AFTER 1600. PATCHY  
BLOWING SNOW AFTER 1700. SNOW ACCUMULATION UP  
TO 1 INCH.  
MAX TEMPERATURE.....16-22.  
24 HR TREND......7 DEGREES COOLER.  
MIN HUMIDITY........61-67 PERCENT.  
24 HR TREND......20 PERCENT WETTER.  
20-FOOT WINDS.......EAST 10 TO 15 MPH WITH HIGHER GUSTS.  
LAL.................1.  
CHC OF WETTING RAIN.25 PERCENT.  
TRANSPORT WINDS.....SOUTHEAST AROUND 20 MPH.  
MIXING HEIGHT.......900-1400 FT AGL INCREASING TO 2500-3600 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR TO FAIR (15700-50200 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........CLOUDY. PATCHY BLOWING SNOW UNTIL 2300. PATCHY  
FOG. SNOW SHOWERS UNTIL 0500. CHANCE OF SNOW  
SHOWERS AFTER 0500. SNOW ACCUMULATION OF 1 TO 2  
INCHES.  
MIN TEMPERATURE.....6-11.  
24 HR TREND......2 DEGREES COOLER.  
MAX HUMIDITY........94-100 PERCENT.  
24 HR TREND......17 PERCENT WETTER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......EAST AROUND 10 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.65 PERCENT.  
TRANSPORT WINDS.....EAST 15 TO 20 MPH.  
MIXING HEIGHT.......800-2300 FT AGL.  
SMOKE DISPERSAL.....POOR (14800-30600 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FRIDAY
 
 
SKY/WEATHER.........CLOUDY. PATCHY FOG UNTIL 0900. CHANCE OF SNOW  
SHOWERS.  
MAX TEMPERATURE.....23-28.  
24 HR TREND......6 DEGREES WARMER.  
MIN HUMIDITY........59-65 PERCENT.  
24 HR TREND......2 PERCENT WETTER.  
20-FOOT WINDS.......EAST AROUND 5 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.15 PERCENT.  
TRANSPORT WINDS.....SOUTH AROUND 10 MPH.  
MIXING HEIGHT.......1000-3000 FT AGL.  
SMOKE DISPERSAL.....POOR (9300-17400 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
SATURDAY
 
PARTLY CLOUDY. CHANCE OF SNOW SHOWERS. PATCHY BLOWING  
SNOW AFTER MIDNIGHT. LOWS AROUND 8. HIGHS IN THE MID 20S. WEST  
WINDS AROUND 20 MPH.    
SUNDAY
 
PARTLY CLOUDY. LOWS AROUND 15. HIGHS IN THE LOWER 30S.  
WEST WINDS AROUND 20 MPH.    
MONDAY
 
PARTLY CLOUDY. LOWS AROUND 15. HIGHS IN THE MID 30S.  
SOUTHWEST WINDS AROUND 10 MPH.    
TUESDAY
 
PARTLY CLOUDY. LOWS AROUND 16. HIGHS IN THE UPPER 30S.   
WEDNESDAY
 
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SNOW SHOWERS.  
LOWS AROUND 19. HIGHS IN THE MID 30S.  
 

 
 
WYZ310-212315-  
PLATTE/GOSHEN/CENTRAL AND EASTERN LARAMIE-  
215 AM MST THU FEB 21 2019  
   
TODAY
 
 
SKY/WEATHER.........CLOUDY. CHANCE OF SNOW SHOWERS UNTIL 0700, THEN  
SLIGHT CHANCE OF SNOW SHOWERS UNTIL 1100, THEN  
SNOW SHOWERS LIKELY. SNOW ACCUMULATION UP TO 1  
INCH.  
MAX TEMPERATURE.....21-26.  
24 HR TREND......8 DEGREES COOLER.  
MIN HUMIDITY........59-65 PERCENT.  
24 HR TREND......27 PERCENT WETTER.  
20-FOOT WINDS.......EAST 5 TO 10 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.20 PERCENT.  
TRANSPORT WINDS.....EAST 15 TO 20 MPH.  
MIXING HEIGHT.......500-1000 FT AGL INCREASING TO 2900-3700 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR TO FAIR (8500-57500 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........CLOUDY. PATCHY FOG. SNOW SHOWERS LIKELY UNTIL  
0500. CHANCE OF SNOW SHOWERS AFTER 0500. SNOW  
ACCUMULATION UP TO 2 INCHES.  
MIN TEMPERATURE.....8-13.  
24 HR TREND......1 DEGREE COOLER.  
MAX HUMIDITY........93-99 PERCENT.  
24 HR TREND......20 PERCENT WETTER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......EAST 5 TO 10 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.45 PERCENT.  
TRANSPORT WINDS.....EAST AROUND 20 MPH DECREASING TO AROUND 10 MPH  
AFTER MIDNIGHT.  
MIXING HEIGHT.......1100-2300 FT AGL.  
SMOKE DISPERSAL.....POOR (15900-32800 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FRIDAY
 
 
SKY/WEATHER.........CLOUDY. PATCHY FOG UNTIL 0900. CHANCE OF SNOW  
SHOWERS.  
MAX TEMPERATURE.....22-27.  
24 HR TREND......2 DEGREES WARMER.  
MIN HUMIDITY........65-71 PERCENT.  
24 HR TREND......3 PERCENT WETTER.  
20-FOOT WINDS.......EAST AROUND 5 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.15 PERCENT.  
TRANSPORT WINDS.....SOUTHEAST AROUND 5 MPH.  
MIXING HEIGHT.......1200-2500 FT AGL.  
SMOKE DISPERSAL.....POOR (9200-12000 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
SATURDAY
 
PARTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS AROUND 8.  
HIGHS IN THE LOWER 30S. NORTHWEST WINDS AROUND 10 MPH.    
SUNDAY
 
PARTLY CLOUDY. LOWS AROUND 13. HIGHS IN THE MID 30S.  
WEST WINDS AROUND 10 MPH.    
MONDAY
 
MOSTLY CLOUDY. LOWS AROUND 12. HIGHS IN THE MID 30S.  
SOUTH WINDS AROUND 10 MPH.    
TUESDAY
 
PARTLY CLOUDY. LOWS AROUND 11. HIGHS IN THE MID 30S.    
WEDNESDAY
 
MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 12. HIGHS IN THE LOWER 30S.  
 

 
 
NEZ311-212315-  
PINE RIDGE/NEBRASKA NATIONAL FOREST/OGLALA NATIONAL GRASSLANDS-  
215 AM MST THU FEB 21 2019  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF FLURRIES UNTIL 0700.  
CHANCE OF SNOW SHOWERS AFTER 0700 UNTIL 1100,  
THEN SNOW SHOWERS LIKELY. SNOW ACCUMULATION OF  
1 TO 2 INCHES.  
MAX TEMPERATURE.....20-25.  
24 HR TREND......5 DEGREES COOLER.  
MIN HUMIDITY........58-64 PERCENT.  
24 HR TREND......24 PERCENT WETTER.  
20-FOOT WINDS.......NORTHEAST 5 TO 10 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.30 PERCENT.  
TRANSPORT WINDS.....EAST AROUND 10 MPH INCREASING TO AROUND 20 MPH  
IN THE AFTERNOON.  
MIXING HEIGHT.......600-2600 FT AGL.  
SMOKE DISPERSAL.....POOR TO FAIR (4000-40100 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........CLOUDY. PATCHY FOG. SNOW SHOWERS LIKELY. SNOW  
ACCUMULATION OF 1 TO 2 INCHES.  
MIN TEMPERATURE.....6-11.  
24 HR TREND......1 DEGREE COOLER.  
MAX HUMIDITY........92-98 PERCENT.  
24 HR TREND......16 PERCENT WETTER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......NORTHEAST AROUND 10 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.50 PERCENT.  
TRANSPORT WINDS.....NORTHEAST 15 TO 20 MPH.  
MIXING HEIGHT.......1200-2400 FT AGL.  
SMOKE DISPERSAL.....POOR (18900-39200 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FRIDAY
 
 
SKY/WEATHER.........CLOUDY. PATCHY FOG UNTIL 0900. SNOW SHOWERS  
LIKELY UNTIL 1100, THEN CHANCE OF SNOW SHOWERS.  
SNOW ACCUMULATION AROUND 1 INCH.  
MAX TEMPERATURE.....17-22.  
24 HR TREND......4 DEGREES COOLER.  
MIN HUMIDITY........75-81 PERCENT.  
24 HR TREND......18 PERCENT WETTER.  
20-FOOT WINDS.......NORTHEAST AROUND 5 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.30 PERCENT.  
TRANSPORT WINDS.....EAST 5 TO 10 MPH.  
MIXING HEIGHT.......1000-2200 FT AGL.  
SMOKE DISPERSAL.....POOR (9300-12000 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
SATURDAY
 
NOT AS COLD. PARTLY CLOUDY. CHANCE OF SNOW SHOWERS.  
LOWS AROUND 6. HIGHS IN THE LOWER 30S. NORTHWEST WINDS AROUND  
10 MPH.    
SUNDAY
 
COLDER. PARTLY CLOUDY. LOWS AROUND 8. HIGHS IN THE  
LOWER 20S. NORTHWEST WINDS AROUND 10 MPH.    
MONDAY
 
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 5. HIGHS IN THE LOWER 20S. SOUTHEAST WINDS AROUND 10 MPH.    
TUESDAY
 
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 4. HIGHS AROUND 19.    
WEDNESDAY
 
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SNOW SHOWERS.  
LOWS AROUND 3. HIGHS IN THE LOWER 20S.  
 

 
 
NEZ312-212315-  
BOX BUTTE/SOUTH SIOUX-  
215 AM MST THU FEB 21 2019  
   
TODAY
 
 
SKY/WEATHER.........CLOUDY. SNOW SHOWERS LIKELY. SNOW ACCUMULATION  
UP TO 1 INCH.  
MAX TEMPERATURE.....21-26.  
24 HR TREND......6 DEGREES COOLER.  
MIN HUMIDITY........59-65 PERCENT.  
24 HR TREND......22 PERCENT WETTER.  
20-FOOT WINDS.......NORTHEAST 5 TO 10 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.25 PERCENT.  
TRANSPORT WINDS.....EAST AROUND 15 MPH INCREASING TO AROUND 25 MPH  
IN THE AFTERNOON.  
MIXING HEIGHT.......500 FT AGL INCREASING TO 2200-2900 FT AGL IN  
THE AFTERNOON.  
SMOKE DISPERSAL.....POOR TO FAIR (5500-52200 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........CLOUDY. PATCHY FOG. CHANCE OF SNOW SHOWERS  
UNTIL 2300. SNOW SHOWERS LIKELY AFTER 2300.  
SNOW ACCUMULATION AROUND 1 INCH.  
MIN TEMPERATURE.....7-12.  
24 HR TREND......1 DEGREE WARMER.  
MAX HUMIDITY........93-99 PERCENT.  
24 HR TREND......20 PERCENT WETTER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......NORTHEAST AROUND 10 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.35 PERCENT.  
TRANSPORT WINDS.....NORTHEAST 15 TO 20 MPH.  
MIXING HEIGHT.......1200-2200 FT AGL.  
SMOKE DISPERSAL.....POOR (16400-32200 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FRIDAY
 
 
SKY/WEATHER.........CLOUDY. PATCHY FOG UNTIL 0900. SNOW SHOWERS  
LIKELY UNTIL 1100, THEN CHANCE OF SNOW SHOWERS.  
SNOW ACCUMULATION UP TO 1 INCH.  
MAX TEMPERATURE.....19-24.  
24 HR TREND......3 DEGREES COOLER.  
MIN HUMIDITY........75-81 PERCENT.  
24 HR TREND......19 PERCENT WETTER.  
20-FOOT WINDS.......NORTHEAST AROUND 5 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.30 PERCENT.  
TRANSPORT WINDS.....EAST 5 TO 10 MPH.  
MIXING HEIGHT.......1100-2100 FT AGL.  
SMOKE DISPERSAL.....POOR (7100-12500 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
SATURDAY
 
NOT AS COLD. PARTLY CLOUDY. CHANCE OF SNOW SHOWERS.  
LOWS AROUND 7. HIGHS IN THE MID 30S. NORTHWEST WINDS AROUND  
10 MPH.    
SUNDAY
 
PARTLY CLOUDY. LOWS AROUND 8. HIGHS IN THE UPPER 20S.  
NORTHWEST WINDS AROUND 10 MPH.    
MONDAY
 
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 7. HIGHS IN THE UPPER 20S. SOUTHEAST WINDS AROUND 10 MPH.    
TUESDAY
 
MOSTLY CLOUDY. LOWS AROUND 6. HIGHS IN THE UPPER 20S.    
WEDNESDAY
 
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SNOW SHOWERS.  
LOWS AROUND 6. HIGHS IN THE UPPER 20S.  
 

 
 
NEZ313-212315-  
SCOTTS BLUFF NATIONAL MONUMENT/WILDCAT HILLS-  
215 AM MST THU FEB 21 2019  
   
TODAY
 
 
SKY/WEATHER.........CLOUDY. CHANCE OF FLURRIES UNTIL 0700, THEN  
SLIGHT CHANCE OF SNOW SHOWERS UNTIL 1100, THEN  
CHANCE OF SNOW SHOWERS.  
MAX TEMPERATURE.....23-28.  
24 HR TREND......5 DEGREES COOLER.  
MIN HUMIDITY........65-71 PERCENT.  
24 HR TREND......32 PERCENT WETTER.  
20-FOOT WINDS.......EAST 5 TO 10 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.15 PERCENT.  
TRANSPORT WINDS.....EAST AROUND 15 MPH INCREASING TO AROUND 25 MPH  
IN THE AFTERNOON.  
MIXING HEIGHT.......300-800 FT AGL INCREASING TO 2800-3300 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (6200 KNOT-FT) INCREASING TO FAIR (59200  
KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........CLOUDY. CHANCE OF SNOW SHOWERS UNTIL 2300. SNOW  
SHOWERS LIKELY AFTER 2300 UNTIL 0500, THEN  
CHANCE OF SNOW SHOWERS. PATCHY FOG AFTER 1900.  
SNOW ACCUMULATION UP TO 1 INCH.  
MIN TEMPERATURE.....10-15.  
24 HR TREND......5 DEGREES WARMER.  
MAX HUMIDITY........94-100 PERCENT.  
24 HR TREND......13 PERCENT WETTER.  
HUMIDITY RECOVERY...EXCELLENT.  
20-FOOT WINDS.......NORTHEAST AROUND 10 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.30 PERCENT.  
TRANSPORT WINDS.....EAST 15 TO 20 MPH.  
MIXING HEIGHT.......1000-1900 FT AGL.  
SMOKE DISPERSAL.....POOR (15900-25400 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FRIDAY
 
 
SKY/WEATHER.........CLOUDY. PATCHY FOG UNTIL 0900. CHANCE OF SNOW  
SHOWERS.  
MAX TEMPERATURE.....23-28.  
24 HR TREND......1 DEGREE COOLER.  
MIN HUMIDITY........74-80 PERCENT.  
24 HR TREND......10 PERCENT WETTER.  
20-FOOT WINDS.......NORTHEAST AROUND 5 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.10 PERCENT.  
TRANSPORT WINDS.....EAST 5 TO 10 MPH.  
MIXING HEIGHT.......1200-2200 FT AGL.  
SMOKE DISPERSAL.....POOR (8000-11400 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
SATURDAY
 
PARTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS AROUND  
10. HIGHS IN THE MID 30S. NORTHWEST WINDS AROUND 10 MPH.    
SUNDAY
 
PARTLY CLOUDY. LOWS AROUND 11. HIGHS IN THE LOWER 30S.  
NORTHWEST WINDS AROUND 10 MPH.    
MONDAY
 
MOSTLY CLOUDY. LOWS AROUND 10. HIGHS IN THE LOWER 30S.  
SOUTHEAST WINDS AROUND 10 MPH.    
TUESDAY
 
MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 9. HIGHS IN THE LOWER 30S.    
WEDNESDAY
 
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SNOW SHOWERS.  
LOWS AROUND 10. HIGHS AROUND 30.  
 

 
 
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