871
FNUS75 KTFX 120838
FWSTFX
SPOT FORECAST FOR ARROWLEAF...MT DNRC
NATIONAL WEATHER SERVICE GREAT FALLS MT
238 AM MDT THU MAR 12 2026
FORECAST IS BASED ON IGNITION TIME OF 0600 MDT ON MARCH 12.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
..HIGH WIND WARNING IN EFFECT UNTIL 3 PM MDT THIS AFTERNOON
DISCUSSION
A PLUME OF PACIFIC MOISTURE WILL BRING SIGNIFICANT IMPACTS TO THE
INCIDENT AREA THROUGH THE FIRST HALF OF THE WEEKEND, WITH VERY
STRONG WINDS AND HEAVY SNOW THROUGH THE DAY TODAY. SNOW CONTINUES
ON FRIDAY AND SATURDAY, WITH LULLS IN THE SNOW AT TIMES. TOTAL
SNOW ACCUMULATION ACROSS THE INCIDENT AREA OF 1 TO 2.5 FEET ARE
EXPECTED BY SATURDAY AFTERNOON.
TODAY
SKY/WEATHER.........CLOUDY (85-95 PERCENT). BLOWING SNOW THROUGH
THE DAY. SNOW IN THE MORNING. SNOW LIKELY IN
THE AFTERNOON.
CWR.................85 PERCENT.
CHANCE OF THUNDER...3 PERCENT.
MAX TEMPERATURE.....37-42.
MIN HUMIDITY........44-49 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......STRONG WINDS. WEST WINDS 50 TO 60 MPH WITH
GUSTS TO AROUND 80 MPH DECREASING TO 35 TO 45
MPH WITH GUSTS TO AROUND 70 MPH IN THE
AFTERNOON.
MIXING HEIGHT.......5500 FT AGL.
TRANSPORT WINDS.....WEST AROUND 50 MPH.
TONIGHT
SKY/WEATHER.........CLOUDY (85-95 PERCENT). AREAS OF BLOWING SNOW
IN THE EVENING, THEN PATCHY BLOWING SNOW
OVERNIGHT. SNOW LIKELY IN THE EVENING, THEN
SNOW OVERNIGHT.
CWR.................55 PERCENT.
CHANCE OF THUNDER...3 PERCENT.
MIN TEMPERATURE.....22-27.
MAX HUMIDITY........73-78 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......VERY WINDY. WEST WINDS 30 TO 40 MPH WITH GUSTS
TO AROUND 60 MPH BECOMING NORTH 15 TO 25 MPH
OVERNIGHT.
MIXING HEIGHT.......1500 FT AGL.
TRANSPORT WINDS.....WEST AROUND 25 MPH.
FRIDAY
SKY/WEATHER.........CLOUDY (95-100 PERCENT). SNOW.
CWR.................80 PERCENT.
CHANCE OF THUNDER...5 PERCENT.
MAX TEMPERATURE.....28-33.
MIN HUMIDITY........64-69 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......NORTHEAST WINDS AROUND 15 MPH.
MIXING HEIGHT.......2500 FT AGL.
TRANSPORT WINDS.....WEST AROUND 15 MPH.
FORECAST DAYS 3 THROUGH 5
SATURDAY
SNOW. LOWS AROUND 18. HIGHS IN THE UPPER 20S. NORTH WINDS AROUND
10 MPH.
SUNDAY
MOSTLY CLOUDY. SNOW. LOWS AROUND 7. HIGHS IN THE LOWER 30S. WEST
WINDS AROUND 10 MPH.
MONDAY
NOT AS COOL. MOSTLY CLOUDY WITH SNOW LIKELY AND CHANCE OF RAIN.
LOWS AROUND 20. HIGHS IN THE UPPER 40S. WEST WINDS AROUND 15 MPH.
FORECASTER...MOLDAN
REQUESTED BY...BOB CULBRETH
TYPE OF REQUEST...PRESCRIBED
.TAG 2605200.3/TFX
.DELDT 03/12/26
.FORMATTERVERSION 2.0.0
.EMAIL BOB.CULBRETH@MT.GOV, TFX.OPS@NOAA.GOV
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