743
FNUS75 KGGW 152223
FWSGGW
SPOT FORECAST FOR BILLY...USWFS
NATIONAL WEATHER SERVICE GLASGOW MT
423 PM MDT FRI MAY 15 2026
FORECAST IS BASED ON FORECAST START TIME OF 0600 MDT ON MAY 15.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE AT (406) 228-9622.
..RED FLAG WARNING IN EFFECT UNTIL 9 PM MDT THIS EVENING
DISCUSSION
AN UPPER TROUGH NORTH OF THE FIRE LOCATION IS PRODUCING A FEW ISOLATED
SHOWERS AND THUNDERSTORMS. THE STRONGEST STORMS MAY SEND AN OUTFLOW
BOUNDARY SOUTHWARD TO INFLUENCE THE WINDS OVER THE FIRE. THE PROBABILITY OF
THIS OCCURRING IS LOW THOUGH. NO STORMS ARE EXPECTED OVER THE FIRE. THE
STRONG WINDS WILL BEGIN DECREASING AFTER 6 PM.
TODAY
SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT). PATCHY BLOWING DUST.
CWR.................1 PERCENT.
CHANCE OF THUNDER...5 PERCENT.
MAX TEMPERATURE.....AROUND 66.
MIN HUMIDITY........21 PERCENT.
WIND (20 FT)........WEST WINDS 12 TO 23 MPH WITH GUSTS TO AROUND 35
MPH.
MIXING HEIGHT.......10500 FT AGL INCREASING TO 11000 FT AGL LATE IN
THE AFTERNOON.
TRANSPORT WINDS.....WEST AROUND 36 MPH.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT).
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....AROUND 42.
MAX HUMIDITY........50 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 20 MPH WITH GUSTS TO
AROUND 30 MPH, DECREASING TO 6 TO 12 MPH AFTER
9 PM, BECOMING LIGHT AND VARIABLE AFTER MIDNIGHT.
MIXING HEIGHT.......400 FT AGL.
TRANSPORT WINDS.....WEST AROUND 22 MPH, DECREASING TO AROUND 14 MPH AFTER
9 PM.
SATURDAY
SKY/WEATHER.........PARTLY SUNNY (65-75 PERCENT). ISOLATED SHOWERS BETWEEN
10 AM AND 6 PM COMING IN FROM THE SOUTHWEST.
CWR.................1 PERCENT.
CHANCE OF THUNDER...15 PERCENT.
MAX TEMPERATURE.....AROUND 66.
MIN HUMIDITY........25 PERCENT.
WIND (20 FT)........VARIABLE AT 7 TO 13 MPH AS THE LOW PRESSURE SYSTEM
MOVES IN FROM THE SOUTH, BECOMING NORTH AT 10 TO 20 MPH
AFTER 2 PM.
MIXING HEIGHT.......8200 FT AGL.
TRANSPORT WINDS.....WEST AROUND 16 MPH BECOMING NORTH AT 20 MPH AFTER 3 PM.
FORECASTER...STOINSKI
REQUESTED BY...MICHELLE DAUENHAUER
TYPE OF REQUEST...WILDFIRE
.TAG 2613627.1/GGW
.DELDT 05/15/26
.FORMATTERVERSION 2.0.0
.EMAIL MTMCC@FIRENET.GOV
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