288
FNUS75 KBYZ 110236
FWSBYZ
SPOT FORECAST FOR SPRING...BLM
NATIONAL WEATHER SERVICE BILLINGS MT
836 PM MDT THU SEP 10 2026
FORECAST IS BASED ON FORECAST START TIME OF 2100 MDT ON SEPTEMBER 10.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
PLEASE CONTACT OUR OFFICE IF YOU HAVE QUESTIONS
OR CONCERNS WITH THIS FORECAST.
DISCUSSION
LOOK FOR LIGHT SOUTHERLY OR POSSIBLY VARIABLE WINDS UNDER A
PARTLY CLOUDY SKY THE REST OF THE EVENING. WINDS WILL TURN
WEST/NORTHWEST OVERNIGHT PICKING UP A BIT. RH READINGS WILL
RECOVER OVER 50%. FOR FRIDAY, EXPECT NORTHERLY WINDS BECOMING A BIT
BRISK IN THE AFTERNOON MAINLY AROUND 13 MPH. RH READINGS WILL NOT
BE AS LOW AS THURSDAYS, LIKELY DROPPING TO THE UPPER 20S TO LOWER
30S RANGE. THE WINDS WILL DECREASE FRIDAY NIGHT WHILE CLOUDS
INCREASE WITH A SLIGHT CHANCE OF SHOWERS, BUT WETTING RAIN (>0.10)
IS NOT AT ALL LIKELY.
CLOUDS SHOULD DECREASE SATURDAY WITH LIGHTER WINDS TURNING
EASTERLY. RH READINGS WILL DROP INTO THE 30S. BT
REST OF TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....49-53.
MAX HUMIDITY........57-64 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......SOUTH WINDS 3 TO 7 MPH SHIFTING TO THE WEST 5
TO 9 MPH OVERNIGHT.
RIDGETOP...........WEST AROUND 15-20 MPH.
MIXING HEIGHT.......500 FT AGL.
TRANSPORT WINDS.....WEST AROUND 11 MPH.
FRIDAY
SKY/WEATHER.........MOSTLY SUNNY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....74-78.
MIN HUMIDITY........28-34 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......NORTH WINDS 6-11 MPH EARLY, INCREASING 9-15 MPH IN THE
AFTERNOON FROM THE NORTH/NORTHEAST.
RIDGETOP...........WEST/NORTHWEST AROUND 15-22 MPH.
MIXING HEIGHT.......500 FT AGL EARLY IN THE MORNING INCREASING TO
5800 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....NORTH AROUND 12 MPH.
FRIDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS IN
THE EVENING.
CWR.................3 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....41-45.
MAX HUMIDITY........84-92 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......NORTH WINDS 6 TO 13 MPH IN THE EVENING BECOMING
LIGHT.
RIDGETOP...........SOUTHWEST AROUND 10 MPH.
MIXING HEIGHT.......4100 FT AGL EARLY IN THE EVENING DECREASING TO
500 FT AGL OVERNIGHT.
TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH.
SATURDAY
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.1 PERCENT.
MAX TEMPERATURE.....70-74.
MIN HUMIDITY........33-39 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT WINDS BECOMING EAST 5 TO 8 MPH IN THE
AFTERNOON.
RIDGETOP...........SOUTHWEST AROUND 20 MPH.
MIXING HEIGHT.......600 FT AGL EARLY IN THE MORNING INCREASING TO
5300 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....EAST AROUND 11 MPH.
FORECASTER...TESAR
REQUESTED BY...LACEY HAUGHIAN
TYPE OF REQUEST...WILDFIRE
.TAG 2621626.0/BYZ
.DELDT 09/10/26
.FORMATTERVERSION 2.0.0
.EMAIL MTMCC@FIRENET.GOV,HAUGHIAN83@YAHOO.COM
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page