637  
FNUS75 KBYZ 170253  
FWSBYZ  
 
SPOT FORECAST FOR PLUM...BLM - MILES CITY DISPATCH  
NATIONAL WEATHER SERVICE BILLINGS MT  
853 PM MDT THU AUG 16 2018  
 
FORECAST IS BASED ON FORECAST START TIME OF 2200 MDT ON AUGUST 16.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
PLEASE CONTACT OUR OFFICE IF YOU HAVE QUESTIONS  
OR CONCERNS WITH THIS FORECAST.  
   
DISCUSSION
 
 
SKIES TONIGHT WILL BE MOSTLY CLEAR WITH AREAS OF SMOKE. FRIDAY  
WILL SEE MOSTLY SUNNY SKIES WITH AREAS OF SMOKE ALONG WITH HOT  
TEMPERATURES AND LOW HUMIDITIES. A COLD FRONT WILL MOVE ACROSS THE  
FIRE SITE EARLY SATURDAY MORNING BRINGING MUCH COOLER  
TEMPERATURES. SCATTERED SHOWERS AND THUNDERSTORMS WILL BE LIKELY  
SATURDAY ALONG WITH HIGHER AFTERNOON HUMIDITIES AND BETTER CHANCES  
FOR WETTING RAINS.  
   
REST OF TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR. AREAS OF SMOKE.  
LAL.................1...NO THUNDERSTORMS.  
MIN TEMPERATURE.....55-60.  
MAX HUMIDITY........60-65 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......SOUTHEAST WINDS 5 TO 10 MPH BECOMING 10 TO 20 MPH LATE.  
RIDGETOP...........SOUTHEAST 5 TO 10 MPH.  
MIXING HEIGHT.......8900 FT AGL LATE IN THE EVENING...DECREASING TO  
0 FT AGL OVERNIGHT.  
TRANSPORT WINDS.....SOUTH 5 TO 15 MPH.  
CWR.................0 PERCENT.  
   
FRIDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY. AREAS OF SMOKE.  
LAL.................1...NO THUNDERSTORMS.  
MAX TEMPERATURE.....92-97.  
MIN HUMIDITY........15-20 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......SOUTHWEST WINDS 5 TO 15 MPH.  
RIDGETOP...........SOUTH 5 TO 15 MPH.  
MIXING HEIGHT.......0 FT AGL IN THE MORNING...INCREASING TO 11700  
FT AGL IN THE AFTERNOON.  
TRANSPORT WINDS.....SOUTH 10 TO 20 MPH.  
HAINES INDEX........4.  
CWR.................0 PERCENT.  
   
FRIDAY NIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED RAIN SHOWERS AND  
THUNDERSTORMS OVERNIGHT.  
LAL.................2...1 TO 8 STRIKES/15 MIN/CELL.  
MIN TEMPERATURE.....60-65.  
MAX HUMIDITY........66-71 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......SOUTH WINDS 10 TO 20 MPH. GUSTY AND ERRATIC  
WINDS EXPECTED NEAR THUNDERSTORMS OVERNIGHT.  
RIDGETOP...........SOUTH 10 TO 20 MPH.  
MIXING HEIGHT.......11700 FT AGL IN THE EVENING...DECREASING TO 100  
FT AGL OVERNIGHT.  
TRANSPORT WINDS.....SOUTHWEST 5 TO 15 MPH.  
CWR.................4 PERCENT.  
   
SATURDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY WITH NUMEROUS RAIN SHOWERS.  
THUNDERSTORMS LIKELY...MAINLY IN THE AFTERNOON.  
LAL.................3...9 TO 15 STRIKES/15 MIN/CELL.  
MAX TEMPERATURE.....78-83.  
MIN HUMIDITY........36-41 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......SOUTHWEST WINDS 10 TO 20 MPH BECOMING NORTHWEST  
10 TO 20 MPH IN THE AFTERNOON. GUSTY AND ERRATIC WINDS  
EXPECTED NEAR THUNDERSTORMS.  
RIDGETOP...........WEST 5 TO 15 MPH.  
MIXING HEIGHT.......100 FT AGL IN THE MORNING...INCREASING TO 4900  
FT AGL IN THE AFTERNOON.  
TRANSPORT WINDS.....WEST 10 TO 20 MPH.  
HAINES INDEX........3.  
CWR.................20 PERCENT.  
 

 
FORECASTER...HOOLEY  
REQUESTED BY...IC  
TYPE OF REQUEST...WILDFIRE  
.TAG 1814598.1/BYZ  
.DELDT 08/16/18  
.EMAIL TERRIBLETEA73@GMAIL.COM  
 
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