006  
FNUS55 KCYS 120922  
FWFCYS  
 
FIRE WEATHER PLANNING FORECAST FOR SOUTHEAST WYOMING/WESTERN NEBRASKA  
NATIONAL WEATHER SERVICE CHEYENNE WY  
222 AM MST TUE DEC 12 2017  
   
DISCUSSION
 
 
SUNNY AND DRY TODAY ACROSS SOUTHEAST WYOMING AND NEBRASKA  
PANHANDLE. LESS WIND EXPECTED TODAY OVER WHAT WE HAVE BEEN  
EXPERIENCING THE PAST SEVERAL DAYS IN THE PANHANDLE. THAT WILL  
CHANGE WEDNESDAY AS ANOTHER CLIPPER SYSTEM TRACKS ACROSS SOUTH  
DAKOTA AND EASTERN NEBRASKA. NORTHWEST WINDS IN THE PANHANDLE AND  
EAST OF THE LARAMIE RANGE EXPECTED TO INCREASE LATER TONIGHT AND  
THROUGH MUCH OF WEDNESDAY. TIMING OF THE CLIPPER SYSTEM SHOULD  
ALLOW COLDER AIR TO MOVE INTO THE AREA AND KEEP AFTERNOON HUMIDITY  
ABOVE CRITICAL LEVELS, SO CRITICAL FIRE WEATHER CONDITIONS ARE NOT  
EXPECTED.  
 
WYZ301-122315-  
NIOBRARA/LOWER ELEVATIONS OF CONVERSE/THUNDER BASIN NATIONAL  
GRASSLAND-  
222 AM MST TUE DEC 12 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....52-58.  
24 HR TREND......10 DEGREES WARMER.  
MIN HUMIDITY........20-26 PERCENT.  
24 HR TREND......2 PERCENT WETTER.  
20-FOOT WINDS.......WEST 10 TO 15 MPH WITH HIGHER GUSTS.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST 20 TO 25 MPH.  
MIXING HEIGHT.......200-1700 FT AGL.  
SMOKE DISPERSAL.....POOR (7800-28300 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....27-32.  
24 HR TREND......8 DEGREES WARMER.  
MAX HUMIDITY........55-61 PERCENT.  
24 HR TREND......10 PERCENT DRIER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......NORTHWEST 10 TO 15 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 25 MPH.  
MIXING HEIGHT.......300-1100 FT AGL.  
SMOKE DISPERSAL.....POOR (10900-19600 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
WEDNESDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY.  
MAX TEMPERATURE.....41-46.  
24 HR TREND......12 DEGREES COOLER.  
MIN HUMIDITY........31-37 PERCENT.  
24 HR TREND......10 PERCENT WETTER.  
20-FOOT WINDS.......NORTHWEST AROUND 15 MPH WITH HIGHER GUSTS.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 30 MPH.  
MIXING HEIGHT.......1300-1800 FT AGL INCREASING TO 3500-4200 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....FAIR (40100 KNOT-FT) INCREASING TO VERY GOOD  
(103100 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
THURSDAY
 
COLDER. PARTLY CLOUDY. LOWS IN THE MID 20S. HIGHS IN  
THE UPPER 30S. NORTHWEST WINDS AROUND 15 MPH.    
FRIDAY
 
PARTLY CLOUDY. LOWS IN THE MID 20S. HIGHS IN THE UPPER  
40S. WEST WINDS AROUND 10 MPH.    
SATURDAY
 
MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS AND SLIGHT  
CHANCE OF SHOWERS. LOWS AROUND 30. HIGHS IN THE LOWER 40S. WEST  
WINDS AROUND 10 MPH.    
SUNDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. LOWS IN  
THE LOWER 20S. HIGHS IN THE LOWER 40S.    
MONDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 20S. HIGHS IN THE MID  
40S.  
 

 
 
WYZ302-122315-  
NORTH LARAMIE RANGE/MEDICINE BOW NF-  
222 AM MST TUE DEC 12 2017  
   
TODAY
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....41-51.  
24 HR TREND......4 DEGREES WARMER.  
MIN HUMIDITY........26-32 PERCENT.  
24 HR TREND......7 PERCENT WETTER.  
20-FOOT WINDS.......WEST AROUND 15 MPH WITH HIGHER GUSTS.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 25 MPH.  
MIXING HEIGHT.......500-1800 FT AGL.  
SMOKE DISPERSAL.....POOR (14700-31200 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....23-29.  
24 HR TREND......2 DEGREES WARMER.  
MAX HUMIDITY........54-60 PERCENT.  
24 HR TREND......2 PERCENT DRIER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......WEST AROUND 10 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 25 MPH.  
MIXING HEIGHT.......400-1100 FT AGL.  
SMOKE DISPERSAL.....POOR (13800-15400 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
WEDNESDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS  
AFTER 1700.  
MAX TEMPERATURE.....33-41.  
24 HR TREND......7 DEGREES COOLER.  
MIN HUMIDITY........39-45 PERCENT.  
24 HR TREND......13 PERCENT WETTER.  
20-FOOT WINDS.......NORTHWEST AROUND 10 MPH WITH HIGHER GUSTS.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 25 MPH.  
MIXING HEIGHT.......900-1700 FT AGL INCREASING TO 2400-3800 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR TO GOOD (26600-65300 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
THURSDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW SHOWERS.  
LOWS IN THE LOWER 20S. HIGHS IN THE LOWER 30S. NORTHWEST WINDS  
AROUND 15 MPH.    
FRIDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER 20S. HIGHS IN THE  
LOWER 40S. WEST WINDS AROUND 15 MPH.    
SATURDAY
 
PARTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS IN THE  
UPPER 20S. HIGHS IN THE MID 30S. WEST WINDS AROUND 15 MPH.    
SUNDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 19. HIGHS IN THE MID 30S.    
MONDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 20S. HIGHS IN THE  
UPPER 30S.  
 

 
 
WYZ303-122315-  
CENTRAL AND NORTHERN CARBON/FERRIS-SEMINOE-SHIRLEY MOUNTAINS-  
222 AM MST TUE DEC 12 2017  
   
TODAY
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....41-46.  
24 HR TREND......5 DEGREES WARMER.  
MIN HUMIDITY........32-38 PERCENT.  
24 HR TREND......7 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.......400-1600 FT AGL.  
SMOKE DISPERSAL.....POOR (8200-20800 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....19-25.  
24 HR TREND......4 DEGREES WARMER.  
MAX HUMIDITY........62-68 PERCENT.  
24 HR TREND......18 PERCENT DRIER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......SOUTHWEST AROUND 10 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST 15 TO 20 MPH.  
MIXING HEIGHT.......400-900 FT AGL.  
SMOKE DISPERSAL.....POOR (8800-11000 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
WEDNESDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 1500, THEN MOSTLY CLOUDY.  
SLIGHT CHANCE OF SNOW SHOWERS AFTER 1700.  
MAX TEMPERATURE.....35-40.  
24 HR TREND......6 DEGREES COOLER.  
MIN HUMIDITY........41-47 PERCENT.  
24 HR TREND......7 PERCENT WETTER.  
20-FOOT WINDS.......WEST AROUND 5 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......500-1100 FT AGL INCREASING TO 3000-3800 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR TO FAIR (9800-47300 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
THURSDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW SHOWERS.  
LOWS AROUND 18. HIGHS IN THE MID 30S. WEST WINDS AROUND 10 MPH.    
FRIDAY
 
MOSTLY CLEAR. LOWS AROUND 20. HIGHS IN THE UPPER 30S.  
SOUTHWEST WINDS AROUND 15 MPH.    
SATURDAY
 
PARTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS IN THE  
UPPER 20S. HIGHS IN THE MID 30S. WEST WINDS AROUND 10 MPH.    
SUNDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 19. HIGHS IN THE LOWER 30S.    
MONDAY
 
PARTLY CLOUDY. LOWS IN THE MID 20S. HIGHS IN THE UPPER  
30S.  
 

 
 
WYZ304-122315-  
SOUTHWEST CARBON COUNTY-  
222 AM MST TUE DEC 12 2017  
   
TODAY
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....41-47.  
24 HR TREND......2 DEGREES WARMER.  
MIN HUMIDITY........27-33 PERCENT.  
24 HR TREND......14 PERCENT WETTER.  
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.......300-2000 FT AGL.  
SMOKE DISPERSAL.....POOR (5100-16300 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....13-18.  
24 HR TREND......3 DEGREES WARMER.  
MAX HUMIDITY........65-71 PERCENT.  
24 HR TREND......9 PERCENT DRIER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......SOUTH AROUND 5 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.  
MIXING HEIGHT.......400-900 FT AGL.  
SMOKE DISPERSAL.....POOR (5300-6800 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
WEDNESDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 1500, THEN MOSTLY CLOUDY.  
SLIGHT CHANCE OF SNOW SHOWERS AFTER 1700.  
MAX TEMPERATURE.....36-42.  
24 HR TREND......4 DEGREES COOLER.  
MIN HUMIDITY........33-39 PERCENT.  
24 HR TREND......7 PERCENT WETTER.  
20-FOOT WINDS.......SOUTHEAST AROUND 5 MPH SHIFTING TO THE  
NORTHWEST IN THE AFTERNOON.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHEAST AROUND 5 MPH.  
MIXING HEIGHT.......400-900 FT AGL INCREASING TO 3100-4200 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (2000-16500 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
THURSDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 14. HIGHS IN THE UPPER 30S. NORTHWEST WINDS AROUND 5 MPH.    
FRIDAY
 
MOSTLY CLEAR. LOWS AROUND 14. HIGHS IN THE LOWER 40S.  
SOUTHWEST WINDS AROUND 10 MPH.    
SATURDAY
 
PARTLY CLOUDY WITH CHANCE OF SNOW SHOWERS. LOWS  
AROUND 20. HIGHS IN THE UPPER 30S. SOUTHWEST WINDS AROUND 10 MPH.   
SUNDAY
 
PARTLY CLOUDY. LOWS AROUND 15. HIGHS IN THE MID 30S.    
MONDAY
 
PARTLY CLOUDY. LOWS AROUND 19. HIGHS AROUND 40.  
 

 
 
WYZ305-122315-  
SIERRA MADRE RANGE/MEDICINE BOW NF-  
222 AM MST TUE DEC 12 2017  
   
TODAY
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....40-45.  
24 HR TREND......4 DEGREES WARMER.  
MIN HUMIDITY........28-34 PERCENT.  
24 HR TREND......10 PERCENT WETTER.  
20-FOOT WINDS.......SOUTHWEST AROUND 5 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 15 MPH.  
MIXING HEIGHT.......500-2100 FT AGL.  
SMOKE DISPERSAL.....POOR (8300-22900 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....19-24.  
24 HR TREND......1 DEGREE WARMER.  
MAX HUMIDITY........50-56 PERCENT.  
24 HR TREND......2 PERCENT DRIER.  
HUMIDITY RECOVERY...POOR.  
20-FOOT WINDS.......SOUTHWEST AROUND 5 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 15 MPH.  
MIXING HEIGHT.......500-1100 FT AGL.  
SMOKE DISPERSAL.....POOR (10900-11100 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
WEDNESDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 1200, THEN MOSTLY CLOUDY.  
SLIGHT CHANCE OF SNOW SHOWERS AFTER 1100 UNTIL  
1700, THEN CHANCE OF SNOW SHOWERS.  
MAX TEMPERATURE.....33-39.  
24 HR TREND......6 DEGREES COOLER.  
MIN HUMIDITY........34-40 PERCENT.  
24 HR TREND......6 PERCENT WETTER.  
20-FOOT WINDS.......SOUTHWEST AROUND 5 MPH SHIFTING TO THE  
NORTHWEST IN THE AFTERNOON. GUSTS UP TO 15 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTH AROUND 10 MPH.  
MIXING HEIGHT.......600-1300 FT AGL INCREASING TO 3300-4400 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (6900-35200 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
THURSDAY
 
PARTLY CLOUDY WITH CHANCE OF SNOW SHOWERS. LOWS  
AROUND 18. HIGHS IN THE LOWER 30S. NORTHWEST WINDS AROUND 5 MPH.    
FRIDAY
 
MOSTLY CLEAR. LOWS AROUND 16. HIGHS IN THE MID 30S.  
SOUTHWEST WINDS AROUND 10 MPH.    
SATURDAY
 
PARTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS IN THE  
LOWER 20S. HIGHS IN THE LOWER 30S. SOUTHWEST WINDS AROUND 10 MPH.   
SUNDAY
 
MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 16. HIGHS IN THE LOWER 30S.    
MONDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER 20S. HIGHS IN THE MID  
30S.  
 

 
 
WYZ306-122315-  
UPPER NORTH PLATTE RIVER BASIN-  
222 AM MST TUE DEC 12 2017  
   
TODAY
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....42-47.  
24 HR TREND......4 DEGREES WARMER.  
MIN HUMIDITY........30-36 PERCENT.  
24 HR TREND......8 PERCENT WETTER.  
20-FOOT WINDS.......SOUTH AROUND 5 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.  
MIXING HEIGHT.......700-2300 FT AGL.  
SMOKE DISPERSAL.....POOR (8600-24500 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....19-24.  
24 HR TREND......1 DEGREE WARMER.  
MAX HUMIDITY........59-65 PERCENT.  
24 HR TREND......8 PERCENT DRIER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......SOUTHWEST AROUND 5 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.  
MIXING HEIGHT.......600-1200 FT AGL.  
SMOKE DISPERSAL.....POOR (9400-10800 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
WEDNESDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 1200, THEN MOSTLY CLOUDY.  
SLIGHT CHANCE OF SNOW SHOWERS AFTER 1700.  
MAX TEMPERATURE.....36-41.  
24 HR TREND......6 DEGREES COOLER.  
MIN HUMIDITY........36-42 PERCENT.  
24 HR TREND......5 PERCENT WETTER.  
20-FOOT WINDS.......SOUTHWEST AROUND 5 MPH SHIFTING TO THE WEST IN  
THE AFTERNOON.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.  
MIXING HEIGHT.......800-1500 FT AGL INCREASING TO 3900-4400 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR TO FAIR (7300-40200 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
THURSDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW SHOWERS.  
LOWS AROUND 18. HIGHS IN THE MID 30S. WEST WINDS AROUND 5 MPH.    
FRIDAY
 
MOSTLY CLEAR. LOWS AROUND 17. HIGHS AROUND 40.  
SOUTHWEST WINDS AROUND 10 MPH.    
SATURDAY
 
PARTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS IN THE  
MID 20S. HIGHS IN THE MID 30S. WEST WINDS AROUND 10 MPH.    
SUNDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 17. HIGHS IN THE LOWER 30S.    
MONDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER 20S. HIGHS IN THE  
UPPER 30S.  
 

 
 
WYZ307-122315-  
SNOWY RANGE/MEDICINE BOW NF-  
222 AM MST TUE DEC 12 2017  
   
TODAY
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....40-45.  
24 HR TREND......4 DEGREES WARMER.  
MIN HUMIDITY........26-32 PERCENT.  
24 HR TREND......10 PERCENT WETTER.  
20-FOOT WINDS.......WEST AROUND 10 MPH WITH HIGHER GUSTS.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 20 MPH.  
MIXING HEIGHT.......500-2400 FT AGL.  
SMOKE DISPERSAL.....POOR (14600-39100 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....20-25.  
24 HR TREND......2 DEGREES WARMER.  
MAX HUMIDITY........46-52 PERCENT.  
24 HR TREND......12 PERCENT DRIER.  
HUMIDITY RECOVERY...POOR.  
20-FOOT WINDS.......WEST AROUND 10 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 20 MPH.  
MIXING HEIGHT.......500-1100 FT AGL.  
SMOKE DISPERSAL.....POOR (13300-14000 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
WEDNESDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 1200, THEN MOSTLY CLOUDY.  
SLIGHT CHANCE OF SNOW SHOWERS AFTER 1100 UNTIL  
1700, THEN CHANCE OF SNOW SHOWERS.  
MAX TEMPERATURE.....31-37.  
24 HR TREND......8 DEGREES COOLER.  
MIN HUMIDITY........34-40 PERCENT.  
24 HR TREND......9 PERCENT WETTER.  
20-FOOT WINDS.......WEST 5 TO 10 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST 15 TO 20 MPH.  
MIXING HEIGHT.......700-1400 FT AGL INCREASING TO 3000-4200 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR TO GOOD (16300-61400 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
THURSDAY
 
PARTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS AROUND  
16. HIGHS IN THE UPPER 20S. NORTHWEST WINDS AROUND 10 MPH.    
FRIDAY
 
MOSTLY CLEAR. LOWS AROUND 16. HIGHS IN THE MID 30S.  
WEST WINDS AROUND 15 MPH.    
SATURDAY
 
PARTLY CLOUDY. CHANCE OF SNOW SHOWERS. LOWS IN THE  
LOWER 20S. HIGHS IN THE LOWER 30S. WEST WINDS AROUND 10 MPH.    
SUNDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 15. HIGHS AROUND 30.    
MONDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER 20S. HIGHS IN THE MID  
30S.  
 

 
 
WYZ308-122315-  
LARAMIE VALLEY/SHIRLEY BASIN-  
222 AM MST TUE DEC 12 2017  
   
TODAY
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....43-49.  
24 HR TREND......1 DEGREE WARMER.  
MIN HUMIDITY........28-34 PERCENT.  
24 HR TREND......8 PERCENT WETTER.  
20-FOOT WINDS.......WEST AROUND 10 MPH WITH HIGHER GUSTS.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 20 MPH.  
MIXING HEIGHT.......300-2200 FT AGL.  
SMOKE DISPERSAL.....POOR (8800-32500 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....21-26.  
24 HR TREND......6 DEGREES WARMER.  
MAX HUMIDITY........59-65 PERCENT.  
24 HR TREND......4 PERCENT WETTER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......WEST AROUND 5 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST 15 TO 20 MPH.  
MIXING HEIGHT.......400-900 FT AGL.  
SMOKE DISPERSAL.....POOR (9200-10400 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
WEDNESDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 1500, THEN MOSTLY CLOUDY.  
SLIGHT CHANCE OF SNOW SHOWERS AFTER 1700.  
MAX TEMPERATURE.....36-41.  
24 HR TREND......1 DEGREE COOLER.  
MIN HUMIDITY........37-43 PERCENT.  
24 HR TREND......10 PERCENT WETTER.  
20-FOOT WINDS.......NORTHWEST AROUND 10 MPH WITH HIGHER GUSTS.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 20 MPH.  
MIXING HEIGHT.......700-1200 FT AGL INCREASING TO 2900-4400 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (14000 KNOT-FT) INCREASING TO GOOD (74400  
KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
THURSDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW SHOWERS.  
LOWS AROUND 19. HIGHS IN THE LOWER 30S. NORTHWEST WINDS AROUND  
10 MPH.    
FRIDAY
 
MOSTLY CLEAR. LOWS AROUND 20. HIGHS IN THE LOWER 40S.  
WEST WINDS AROUND 10 MPH.    
SATURDAY
 
PARTLY CLOUDY WITH CHANCE OF SNOW SHOWERS. LOWS IN  
THE UPPER 20S. HIGHS IN THE MID 30S. WEST WINDS AROUND 10 MPH.    
SUNDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
AROUND 18. HIGHS IN THE MID 30S.    
MONDAY
 
PARTLY CLOUDY. LOWS IN THE MID 20S. HIGHS AROUND 40.  
 

 
 
WYZ309-122315-  
SOUTH LARAMIE RANGE/MEDICINE BOW NF-  
222 AM MST TUE DEC 12 2017  
   
TODAY
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....48-56.  
24 HR TREND......9 DEGREES WARMER.  
MIN HUMIDITY........19-25 PERCENT.  
24 HR TREND......UNCHANGED.  
20-FOOT WINDS.......WEST AROUND 20 MPH WITH GUSTS TO AROUND 40 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....WEST AROUND 30 MPH.  
MIXING HEIGHT.......500-2500 FT AGL.  
SMOKE DISPERSAL.....POOR TO FAIR (13000-55900 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....27-32.  
24 HR TREND......4 DEGREES WARMER.  
MAX HUMIDITY........45-51 PERCENT.  
24 HR TREND......3 PERCENT DRIER.  
HUMIDITY RECOVERY...POOR.  
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.......400-900 FT AGL.  
SMOKE DISPERSAL.....POOR (15700-16000 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
WEDNESDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 1500, THEN MOSTLY CLOUDY.  
SLIGHT CHANCE OF SNOW SHOWERS AFTER 1700.  
MAX TEMPERATURE.....38-46.  
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 GUSTS TO AROUND 35  
MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 25 MPH.  
MIXING HEIGHT.......1000-1500 FT AGL INCREASING TO 3400-4900 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (29100 KNOT-FT) INCREASING TO GOOD (96000  
KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
THURSDAY
 
COLDER. PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW  
SHOWERS. LOWS IN THE MID 20S. HIGHS IN THE MID 30S. NORTHWEST  
WINDS AROUND 15 MPH.    
FRIDAY
 
MOSTLY CLEAR. LOWS IN THE MID 20S. HIGHS IN THE MID  
40S. WEST WINDS AROUND 20 MPH.    
SATURDAY
 
PARTLY CLOUDY WITH CHANCE OF SNOW SHOWERS AND SLIGHT  
CHANCE OF SHOWERS. LOWS IN THE LOWER 30S. HIGHS IN THE LOWER 40S.  
WEST WINDS AROUND 15 MPH.    
SUNDAY
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW SHOWERS. LOWS  
IN THE LOWER 20S. HIGHS IN THE UPPER 30S.    
MONDAY
 
MOSTLY CLEAR. LOWS IN THE UPPER 20S. HIGHS IN THE MID  
40S.  
 

 
 
WYZ310-122315-  
PLATTE/GOSHEN/CENTRAL AND EASTERN LARAMIE-  
222 AM MST TUE DEC 12 2017  
   
TODAY
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....57-62.  
24 HR TREND......10 DEGREES WARMER.  
MIN HUMIDITY........13-19 PERCENT.  
24 HR TREND......3 PERCENT DRIER.  
20-FOOT WINDS.......WEST 10 TO 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.......200-700 FT AGL INCREASING TO 1800-3800 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR TO FAIR (8300-57700 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....29-34.  
24 HR TREND......7 DEGREES WARMER.  
MAX HUMIDITY........48-54 PERCENT.  
24 HR TREND......15 PERCENT DRIER.  
HUMIDITY RECOVERY...POOR.  
20-FOOT WINDS.......NORTHWEST AROUND 10 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 25 MPH.  
MIXING HEIGHT.......300-1000 FT AGL.  
SMOKE DISPERSAL.....POOR (10500-16900 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
WEDNESDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 0900, THEN MOSTLY SUNNY  
UNTIL 1200, THEN PARTLY CLOUDY.  
MAX TEMPERATURE.....45-50.  
24 HR TREND......13 DEGREES COOLER.  
MIN HUMIDITY........22-28 PERCENT.  
24 HR TREND......10 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 30 MPH.  
MIXING HEIGHT.......1200-1700 FT AGL INCREASING TO 4100-5000 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (39000 KNOT-FT) INCREASING TO VERY GOOD  
(131600 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
THURSDAY
 
COLDER. PARTLY CLOUDY. LOWS IN THE MID 20S. HIGHS IN  
THE LOWER 40S. NORTHWEST WINDS AROUND 15 MPH.    
FRIDAY
 
PARTLY CLOUDY. LOWS IN THE MID 20S. HIGHS IN THE LOWER  
50S. WEST WINDS AROUND 15 MPH.    
SATURDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND SNOW  
SHOWERS. LOWS IN THE LOWER 30S. HIGHS IN THE MID 40S. WEST WINDS  
AROUND 10 MPH.    
SUNDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER 20S. HIGHS IN THE MID  
40S.    
MONDAY
 
PARTLY CLOUDY. LOWS AROUND 30. HIGHS AROUND 50.  
 

 
 
NEZ311-122315-  
PINE RIDGE/NEBRASKA NATIONAL FOREST/OGLALA NATIONAL GRASSLANDS-  
222 AM MST TUE DEC 12 2017  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....57-62.  
24 HR TREND......11 DEGREES WARMER.  
MIN HUMIDITY........16-22 PERCENT.  
24 HR TREND......3 PERCENT DRIER.  
20-FOOT WINDS.......WEST AROUND 10 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST 20 TO 25 MPH.  
MIXING HEIGHT.......500-2500 FT AGL.  
SMOKE DISPERSAL.....POOR TO FAIR (7500-51600 KNOT-FT).  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....30-35.  
24 HR TREND......11 DEGREES WARMER.  
MAX HUMIDITY........53-59 PERCENT.  
24 HR TREND......18 PERCENT DRIER.  
HUMIDITY RECOVERY...FAIR.  
20-FOOT WINDS.......NORTHWEST 10 TO 15 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST 25 TO 30 MPH.  
MIXING HEIGHT.......200-1000 FT AGL.  
SMOKE DISPERSAL.....POOR (9800-20100 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
WEDNESDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 1200, THEN PARTLY CLOUDY.  
MAX TEMPERATURE.....44-49.  
24 HR TREND......13 DEGREES COOLER.  
MIN HUMIDITY........27-33 PERCENT.  
24 HR TREND......11 PERCENT WETTER.  
20-FOOT WINDS.......NORTHWEST AROUND 20 MPH WITH GUSTS TO AROUND 35  
MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 35 MPH.  
MIXING HEIGHT.......1300-1800 FT AGL INCREASING TO 3800-4600 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....FAIR (47800 KNOT-FT) INCREASING TO VERY GOOD  
(131100 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
THURSDAY
 
COLDER. PARTLY CLOUDY. LOWS IN THE MID 20S. HIGHS IN  
THE UPPER 30S. NORTHWEST WINDS AROUND 15 MPH.    
FRIDAY
 
WARMER. PARTLY CLOUDY. LOWS IN THE LOWER 20S. HIGHS IN  
THE LOWER 50S. WEST WINDS AROUND 10 MPH.    
SATURDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND SNOW  
SHOWERS. LOWS IN THE UPPER 20S. HIGHS IN THE MID 40S. WEST WINDS  
AROUND 10 MPH.    
SUNDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER 20S. HIGHS IN THE MID  
40S.    
MONDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 20S. HIGHS IN THE  
UPPER 40S.  
 

 
 
NEZ312-122315-  
BOX BUTTE/SOUTH SIOUX-  
222 AM MST TUE DEC 12 2017  
   
TODAY
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....57-62.  
24 HR TREND......11 DEGREES WARMER.  
MIN HUMIDITY........19 PERCENT.  
24 HR TREND......4 PERCENT DRIER.  
20-FOOT WINDS.......WEST 5 TO 10 MPH AND GUSTY.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST 15 TO 20 MPH.  
MIXING HEIGHT.......200-2100 FT AGL.  
SMOKE DISPERSAL.....POOR (6600-35000 KNOT-FT).  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....30-35.  
24 HR TREND......9 DEGREES WARMER.  
MAX HUMIDITY........50-56 PERCENT.  
24 HR TREND......15 PERCENT DRIER.  
HUMIDITY RECOVERY...POOR.  
20-FOOT WINDS.......NORTHWEST 10 TO 15 MPH. GUSTS UP TO 15 MPH  
INCREASING TO 25 MPH AFTER MIDNIGHT.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST 25 TO 30 MPH.  
MIXING HEIGHT.......200-800 FT AGL.  
SMOKE DISPERSAL.....POOR (9000-19100 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
WEDNESDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 0900, THEN MOSTLY SUNNY  
UNTIL 1200, THEN PARTLY CLOUDY.  
MAX TEMPERATURE.....45-50.  
24 HR TREND......13 DEGREES COOLER.  
MIN HUMIDITY........24-30 PERCENT.  
24 HR TREND......10 PERCENT WETTER.  
20-FOOT WINDS.......NORTHWEST 15 TO 20 MPH WITH GUSTS TO AROUND 35  
MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST 35 TO 40 MPH.  
MIXING HEIGHT.......1500 FT AGL INCREASING TO 3900-4400 FT AGL IN  
THE AFTERNOON.  
SMOKE DISPERSAL.....FAIR (48400 KNOT-FT) INCREASING TO VERY GOOD  
(138900 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
THURSDAY
 
COLDER. PARTLY CLOUDY. LOWS IN THE UPPER 20S. HIGHS  
IN THE LOWER 40S. NORTHWEST WINDS AROUND 15 MPH.    
FRIDAY
 
WARMER. PARTLY CLOUDY. LOWS IN THE LOWER 20S. HIGHS IN  
THE LOWER 50S. NORTHWEST WINDS AROUND 10 MPH.    
SATURDAY
 
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND SNOW  
SHOWERS. LOWS IN THE UPPER 20S. HIGHS IN THE UPPER 40S. WEST  
WINDS AROUND 10 MPH.    
SUNDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER 20S. HIGHS IN THE MID  
40S.    
MONDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 20S. HIGHS IN THE  
UPPER 40S.  
 

 
 
NEZ313-122315-  
SCOTTS BLUFF NATIONAL MONUMENT/WILDCAT HILLS-  
222 AM MST TUE DEC 12 2017  
   
TODAY
 
 
SKY/WEATHER.........SUNNY.  
MAX TEMPERATURE.....58-63.  
24 HR TREND......10 DEGREES WARMER.  
MIN HUMIDITY........12-18 PERCENT.  
24 HR TREND......2 PERCENT DRIER.  
20-FOOT WINDS.......WEST AROUND 10 MPH WITH HIGHER GUSTS.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 20 MPH.  
MIXING HEIGHT.......200-700 FT AGL INCREASING TO 2100-3900 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (7400 KNOT-FT) INCREASING TO GOOD (60600  
KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
MIN TEMPERATURE.....30-35.  
24 HR TREND......12 DEGREES WARMER.  
MAX HUMIDITY........49-55 PERCENT.  
24 HR TREND......20 PERCENT DRIER.  
HUMIDITY RECOVERY...POOR.  
20-FOOT WINDS.......NORTHWEST 10 TO 15 MPH. GUSTS UP TO 20 MPH  
INCREASING TO 30 MPH AFTER MIDNIGHT.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 20 MPH INCREASING TO AROUND 30  
MPH AFTER MIDNIGHT.  
MIXING HEIGHT.......200-900 FT AGL.  
SMOKE DISPERSAL.....POOR (8600-16300 KNOT-FT).  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
   
WEDNESDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY UNTIL 0900, THEN MOSTLY SUNNY  
UNTIL 1500, THEN PARTLY CLOUDY.  
MAX TEMPERATURE.....47-52.  
24 HR TREND......11 DEGREES COOLER.  
MIN HUMIDITY........22-28 PERCENT.  
24 HR TREND......11 PERCENT WETTER.  
20-FOOT WINDS.......NORTHWEST AROUND 20 MPH WITH GUSTS TO AROUND 45  
MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
TRANSPORT WINDS.....NORTHWEST AROUND 35 MPH.  
MIXING HEIGHT.......1200-1700 FT AGL INCREASING TO 4400-4900 FT AGL  
IN THE AFTERNOON.  
SMOKE DISPERSAL.....FAIR (44500 KNOT-FT) INCREASING TO EXCELLENT  
(155300 KNOT-FT) IN THE AFTERNOON.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
   
FORECAST DAYS 3 THROUGH 7
 
   
THURSDAY
 
COLDER. PARTLY CLOUDY. LOWS IN THE UPPER 20S. HIGHS  
IN THE LOWER 40S. NORTHWEST WINDS AROUND 20 MPH.    
FRIDAY
 
WARMER. PARTLY CLOUDY. LOWS IN THE LOWER 20S. HIGHS IN  
THE MID 50S. NORTHWEST WINDS AROUND 10 MPH.    
SATURDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER 20S. HIGHS IN THE  
UPPER 40S. WEST WINDS AROUND 10 MPH.    
SUNDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER 20S. HIGHS IN THE  
UPPER 40S.    
MONDAY
 
MOSTLY CLEAR. LOWS IN THE UPPER 20S. HIGHS IN THE LOWER  
50S.  
 

 
 
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