806  
FNUS75 KRIW 141656  
FWSRIW  
 
SPOT FORECAST FOR DENVER JAKE...BLM  
NATIONAL WEATHER SERVICE RIVERTON WY  
1056 AM MDT TUE AUG 14 2018  
 
FORECAST IS BASED ON FORECAST START TIME OF 1200 MDT ON AUGUST 14.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
 
AN UPPER LEVEL DISTURBANCE WILL MOVE ACROSS THE AREA TODAY. ISOLATED  
SHOWERS AND THUNDERSTORMS WILL START AS EARLY AS 1200, SOME COULD BE  
STRONG ESPECIALLY EAST OF A GREYBULL TO RIVERTON LINE WITH STRONG  
WIND GUSTS AND HAIL. TEMPERATURES ARE SLIGHTLY COOLER THAN YESTERDAY  
AND RH WILL REMAIN ABOVE CRITICAL THRESHOLD. WINDS WILL BE LIGHT  
OUTSIDE OF THUNDERSTORMS.  
   
..THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS
 
   
..HAINES INDEX IS HIGH LEVEL HAINES BOTH DAY AND NIGHT
 
 
FORECASTER...HULME  
   
REST OF TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT). AREAS OF SMOKE.  
ISOLATED SHOWERS AND THUNDERSTORMS AFTER 1300.  
MAX TEMPERATURE.....84-87.  
MIN HUMIDITY........22-25 PERCENT.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. GUSTY AND ERRATIC  
WINDS EXPECTED NEAR THUNDERSTORMS.  
RIDGE TOP WINDS.....NORTHEAST AROUND 10 MPH.  
LAL.................3 UNTIL 1800, THEN 2.  
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
MIXING HEIGHT.......7000 FT AGL.  
TRANSPORT WINDS.....NORTHEAST AROUND 12 MPH.  
SMOKE DISPERSAL.....FAIR TO GOOD.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT). ISOLATED SHOWERS  
AND THUNDERSTORMS UNTIL 2400. AREAS OF  
SMOKE THROUGH THE NIGHT.  
MIN TEMPERATURE.....54-57.  
MAX HUMIDITY........71-74 PERCENT.  
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTY AND ERRATIC  
WINDS EXPECTED NEAR THUNDERSTORMS UNTIL 2400.  
RIDGE TOP WINDS.....EAST AROUND 10 MPH.  
LAL.................2 UNTIL 2400, THEN 1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
MIXING HEIGHT.......3900 FT AGL UNTIL 2400, THEN 200 FT AGL.  
TRANSPORT WINDS.....EAST AROUND 12 MPH.  
SMOKE DISPERSAL.....FAIR UNTIL 2400, THEN POOR.  
   
WEDNESDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (10-20 PERCENT). AREAS OF SMOKE.  
MAX TEMPERATURE.....86-89.  
MIN HUMIDITY........12-15 PERCENT.  
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH.  
RIDGE TOP WINDS.....NORTHWEST AROUND 10 MPH.  
LAL.................1.  
CHC OF WETTING RAIN.ZERO PERCENT.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
MIXING HEIGHT.......3500 FT AGL UNTIL 1200, THEN 7400 FT AGL.  
TRANSPORT WINDS.....NORTHWEST AROUND 12 MPH.  
SMOKE DISPERSAL.....GOOD.  
   
FORECAST DAYS 3 THROUGH 5
 
   
WEDNESDAY NIGHT
 
 
MOSTLY CLEAR. LOWS IN THE MID 50S. WINDS GENERALLY LESS THAN  
10 MPH.  
   
THURSDAY
 
 
PARTLY CLOUDY. LOWS IN THE MID 50S. HIGHS IN THE LOWER 90S. WINDS  
GENERALLY LESS THAN 10 MPH.  
   
FRIDAY
 
 
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS  
AFTER 1200. LOWS IN THE UPPER 50S. HIGHS IN THE LOWER 90S. WINDS  
GENERALLY LESS THAN 10 MPH.  
   
SATURDAY
 
 
MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE  
UPPER 50S. HIGHS IN THE LOWER 80S. WINDS GENERALLY LESS THAN  
10 MPH.  
 

 
FORECASTER...HULME  
REQUESTED BY...CARSON MOUNTFORD  
TYPE OF REQUEST...WILDFIRE  
.TAG 1814535.1/RIW  
.DELDT 08/14/18  
.EMAIL CODYDISPATCH@GMAIL.COM  
 
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