047  
FNUS75 KBYZ 201555  
FWSBYZ  
 
SPOT FORECAST FOR ASH CREEK SALVAGE PILE BURN...NORTHERN CHEYENNE AGENCY  
NATIONAL WEATHER SERVICE BILLINGS MT  
855 AM MST WED FEB 20 2019  
 
FORECAST IS BASED ON IGNITION TIME OF 0900 MST ON FEBRUARY 20.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
PLEASE CONTACT OUR OFFICE IF YOU HAVE QUESTIONS  
OR CONCERNS WITH THIS FORECAST.  
   
DISCUSSION
 
 
EXPECT WINDS TO BE BREEZY TODAY, WITH SPEEDS AROUND 10 TO 15 MPH.  
WINDS WILL SHIFT FROM THE WEST NORTHWEST TO MORE NORTHWESTERLY  
AROUND NOON. RELATIVE HUMIDITY VALUES WILL BOTTOM OUT IN THE 50S  
TO 60 EACH DAY, WITH RECOVERIES INTO THE 90S TONIGHT. EXPECTING  
MOSTLY SUNNY SKIES THIS MORNING, BUT EXPECT CLOUDS TO BE  
INCREASING THIS AFTERNOON. OVERNIGHT AND THURSDAY COULD SEE SOME  
FLURRIES AT THE BURN SITE. EXPECT HIGHS IN THE UPPER TEENS AND  
LOWS NEAR ZERO. REIMER  
   
REST OF TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY...INCREASE CLOUDS IN THE  
AFTERNOON.  
MAX TEMPERATURE.....15-20.  
MIN HUMIDITY........50-55 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......WEST NORTHWEST WINDS AROUND 10 TO 15 MPH IN  
THE MORNING SHIFTING TO THE NORTHWEST AROUND  
10 TO 15 MPH IN THE AFTERNOON.  
RIDGETOP...........NORTHWEST AROUND 15 TO 20 MPH.  
MIXING HEIGHT.......3400 FT AGL.  
TRANSPORT WINDS.....WEST AROUND 10 TO 15 MPH.  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
CWR.................0 PERCENT.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY. SCATTERED FLURRIES OVERNIGHT.  
MIN TEMPERATURE.....0-5.  
MAX HUMIDITY........83-88 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......WEST WINDS AROUND 5 TO 10 MPH.  
RIDGETOP...........NORTHWEST AROUND 10 TO 15 MPH.  
MIXING HEIGHT.......0 FT AGL.  
TRANSPORT WINDS.....NORTHWEST AROUND 5 TO 10 MPH.  
CWR.................7 PERCENT.  
   
THURSDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. ISOLATED FLURRIES IN THE MORNING,  
THEN SCATTERED FLURRIES IN THE AFTERNOON.  
MAX TEMPERATURE.....14-19.  
MIN HUMIDITY........63-68 PERCENT.  
WIND (20 FT)........  
SLOPE/VALLEY.......WEST WINDS AROUND 5 TO 10 MPH IN THE MORNING  
SHIFTING TO THE NORTHWEST IN THE AFTERNOON.  
RIDGETOP...........NORTHWEST AROUND 5 TO 10 MPH.  
MIXING HEIGHT.......3400 FT AGL.  
TRANSPORT WINDS.....NORTHWEST AROUND 5 TO 10 MPH.  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
CWR.................3 PERCENT.  
 

 
 
FORECASTER...REIMER  
REQUESTED BY...TRAVISLIMPY  
TYPE OF REQUEST...PRESCRIBED  
.TAG 1901723.0/BYZ  
.DELDT 02/20/19  
.FORMATTERVERSION 1.0.25  
.EMAIL TRAVIS.LIMPY@BIA.GOV  
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab MT Page
The Nexlab WY Page Main Text Page