546
FNUS75 KTFX 100730
FWSTFX
SPOT FORECAST FOR ARROWLEAF...MT DNRC
NATIONAL WEATHER SERVICE GREAT FALLS MT
130 AM MDT TUE MAR 10 2026
FORECAST IS BASED ON IGNITION TIME OF 0600 MDT ON MARCH 10.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
...HIGH WIND WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH
THURSDAY AFTERNOON...
DISCUSSION
AN ACTIVE PATTERN IS EXPECTED ACROSS THE NORTHERN ROCKIES FROM
MID-WEEK AND INTO THE FIRST HALF OF THE UPCOMING WEEKEND AS A
SURGE OF PACIFIC MOISTURE STREAMS EASTWARD AND ACROSS THE
CONTINENTAL DIVIDE. THE MOST IMPACTFUL WEATHER LOOKS TO OCCUR
FROM WEDNESDAY EVENING THROUGH THURSDAY NIGHT WHEN STRONG WINDS
COMBINED WITH FALLING SNOW MAY LEAD TO WHITEOUT CONDITIONS. WIND
GUSTS UP TO 60 MPH ARE LIKELY DURING THE DAY ON THURSDAY, WITH 25%
CHANCE THAT GUSTS APPROACH 90 MPH. SNOWFALL FROM WEDNESDAY
EVENING THROUGH SATURDAY AFTERNOON IS LIKELY TO BE MEASURED IN
FEET, WITH A REASONABLY LOW END SNOWFALL SCENARIO BEING AROUND 18"
AND A HIGH END SCENARIO BEING AROUND 24".
TODAY
SKY/WEATHER.........PARTLY SUNNY (45-55 PERCENT). CHANCE OF SNOW.
CWR.................5 PERCENT.
CHANCE OF THUNDER...5 PERCENT.
MAX TEMPERATURE.....30-35.
MIN HUMIDITY........42-47 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......WEST WINDS 10 TO 20 MPH, WITH GUSTS TO AROUND 35
MPH.
MIXING HEIGHT.......6000 FT AGL.
TRANSPORT WINDS.....WEST AROUND 25 MPH.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT). SLIGHT CHANCE OF
SNOW IN THE EVENING. CHANCE OF SNOW OVERNIGHT.
CWR.................5 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....16-21.
MAX HUMIDITY........52-57 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......WEST WINDS 15 TO 20 MPH.
MIXING HEIGHT.......1000 FT AGL.
TRANSPORT WINDS.....WEST AROUND 30 MPH.
WEDNESDAY
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). CHANCE OF SNOW
IN THE MORNING, THEN SNOW LIKELY IN THE
AFTERNOON.
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....36-41.
MIN HUMIDITY........48-53 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......SOUTHWEST WINDS 15 TO 20 MPH. GUSTS UP TO 30
MPH INCREASING TO 40 MPH IN THE AFTERNOON.
MIXING HEIGHT.......7000 FT AGL.
TRANSPORT WINDS.....WEST AROUND 35 MPH.
FORECAST DAYS 3 THROUGH 5
THURSDAY
WINDY, SNOW. LOWS IN THE LOWER 30S. HIGHS IN THE LOWER 40S. WEST
WINDS 30 TO 40 MPH, WITH AROUND 60 MPH.
FRIDAY
SNOW. LOWS IN THE UPPER 20S. HIGHS IN THE UPPER 30S. WEST WINDS
AROUND 15 MPH.
SATURDAY
SNOW. LOWS AROUND 19. HIGHS IN THE UPPER 20S. NORTHWEST WINDS
AROUND 10 MPH.
FORECASTER...MOLDAN
REQUESTED BY...BOB CULBRETH
TYPE OF REQUEST...PRESCRIBED
.TAG 2605200.1/TFX
.DELDT 03/10/26
.FORMATTERVERSION 2.0.0
.EMAIL BOB.CULBRETH@MT.GOV, TFX.OPS@NOAA.GOV
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