668
FNUS75 KTFX 250950
FWSTFX
SPOT FORECAST FOR ARROWLEAF...STATE/LOCAL
NATIONAL WEATHER SERVICE GREAT FALLS MT
250 AM MST WED FEB 25 2026
FORECAST IS BASED ON IGNITION TIME OF 0500 MST ON FEBRUARY 25.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
..HIGH WIND WARNINGS IN EFFECT THROUGH 11 AM MST FRIDAY
DISCUSSION
STRENGTHENING WESTERLY FLOW ACROSS THE NORTHERN ROCKIES WILL
BRING INCREASINGLY STRONG WINDS TO AREAS ALONG THE ROCKY MOUNTAIN
FRONT TODAY. EXPECT PERIODIC GUSTS IN EXCESS OF 60 MPH THIS
AFTERNOON WITH ONLY SOME MINOR ABATEMENT OF WINDS DURING THE
OVERNIGHT PERIOD TONIGHT BEFORE WINDS INCREASE FURTHER ON
THURSDAY. PEAK WIND GUSTS ON THURSDAY ARE EXPECTED IN THE LATE
AFTERNOON AND MAY EXCEED 75 MPH IN THE MOST EXPOSED AREAS. IT
SHOULD BE NOTED THAT LOCAL SHELTERING BY VEGETATION AND TERRAIN
EFFECTS MAY ALSO REDUCE WIND SPEEDS FROM WHAT IS FORECAST
FOR AREAS WITH OPEN EXPOSURE.
TODAY
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT). SLIGHT CHANCE OF
SNOW SHOWERS EARLY IN THE MORNING.
CWR.................5 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....37-42.
MIN HUMIDITY........40-45 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......VERY WINDY. WEST WINDS 20 TO 25 MPH WITH GUSTS
TO AROUND 45 MPH INCREASING TO 30 TO 35 MPH
WITH GUSTS UP TO 65 MPH IN THE AFTERNOON.
MIXING HEIGHT.......2000 FT AGL.
TRANSPORT WINDS.....WEST AROUND 30 TO 40 MPH, INCREASING TO 50 TO
60 MPH IN THE AFTERNOON.
TIME (MST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........25 28 16 13 11 17 23 38 30 32 42 52
WEATHER COV.....SCH SCH
WEATHER TYPE....SN SN
TSTM COV........
CWR.............10 10 10 10 10 10 10 10 10 10 10 10
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............31 31 31 33 35 35 37 37 37 38 37 37
RH..............52 53 52 50 48 48 45 45 45 46 46 46
20 FT WIND DIR..W W W W W W W W W W W W
20 FT WIND SPD..30 35 35 35 35 35 35 40 40 40 40 45
20 FT WIND GUST.45 50 50 50 55 55 60 60 65 65 65 65
MIX HGT (KFT)...1.0 1.0 1.0 1.5 2.0 2.0 2.0 2.0 2.0 2.0 2.0 1.5
TRANSP WIND DIR.W W W W W W W W W W W W
TRANSP WIND SPD.30 40 45 45 50 50 50 55 60 60 60 50
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (55-65 PERCENT). SLIGHT CHANCE OF
SNOW SHOWERS IN THE EVENING.
CWR.................5 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....27-32.
MAX HUMIDITY........45-50 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......VERY WINDY. WEST WINDS 35 TO 40 MPH WITH GUSTS
UP TO 70 MPH. GUSTS DECREASING TO 50-60 MPH AFTER
3 AM.
MIXING HEIGHT.......1000 FT AGL.
TRANSPORT WINDS.....WEST 45 TO 50 MPH.
TIME (MST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........61 58 55 55 59 61 67 60 57 66 62 59
WEATHER COV..... SCH SCH SCH SCH SCH SCH SCH SCH
WEATHER TYPE.... SN SN SN SN SN SN SN SN
TSTM COV........
CWR.............10 10 10 10 10 10 10 10 10 10 10 10
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............35 33 34 33 33 33 33 33 32 32 32 30
RH..............47 48 47 50 49 47 49 48 49 49 48 50
20 FT WIND DIR..W W W W W W W W W W W SW
20 FT WIND SPD..45 45 45 45 45 40 40 40 40 35 35 35
20 FT WIND GUST.70 70 70 65 65 65 60 60 60 55 55 55
MIX HGT (KFT)...1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
TRANSP WIND DIR.W W W W W W W W W W W W
TRANSP WIND SPD.45 45 50 45 50 45 50 45 45 45 45 45
THURSDAY
SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT).
CWR.................5 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....40-45.
MIN HUMIDITY........31-36 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......STRONG WINDS. WEST WINDS 30 TO 35 MPH WITH
GUSTS TO TO AROUND 65 MPH INCREASING TO 40 TO 45
MPH WITH GUSTS TO AROUND 75 MPH LATE IN THE
AFTERNOON.
MIXING HEIGHT.......3500 FT AGL.
TRANSPORT WINDS.....WEST 35 TO 40 MPH INCREASING TO AROUND 55 MPH.
TIME (MST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........59 59 45 45 45 31 31 31 27 27 27 35
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............10 10 10 10 10 10 10 10 10 10 10 10
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............31 31 32 34 36 38 39 40 41 42 42 42
RH..............48 49 47 45 44 43 42 42 41 40 39 38
20 FT WIND DIR..SW SW W W W W W W W W W W
20 FT WIND SPD..35 35 35 35 35 35 35 35 45 45 45 50
20 FT WIND GUST.60 60 60 60 60 65 65 65 75 75 75 75
MIX HGT (KFT)...1.0 1.0 1.5 2.0 2.0 2.5 3.0 3.5 3.5 3.0 2.0 1.5
TRANSP WIND DIR.W W W W W W W W W W W W
TRANSP WIND SPD.35 35 35 35 40 45 50 55 55 55 55 55
FORECAST DAYS 3 THROUGH 5
FRIDAY
WINDY. MOSTLY CLOUDY. SNOW LIKELY. LOWS IN THE LOWER 30S. HIGHS
IN THE LOWER 40S. WEST WINDS AROUND 35 MPH.
SATURDAY
SNOW. LOWS AROUND 18. HIGHS IN THE LOWER 30S. NORTHEAST WINDS
AROUND 10 MPH.
SUNDAY
NOT AS COOL. PARTLY CLOUDY. SLIGHT CHANCE OF SNOW. LOWS AROUND
20. HIGHS IN THE MID 40S. SOUTHWEST WINDS AROUND 5 MPH.
FORECASTER...HOENISCH
REQUESTED BY...BOB CULBRETH
TYPE OF REQUEST...PRESCRIBED
.TAG 2602860.8/TFX
.DELDT 02/25/26
.FORMATTERVERSION 2.0.0
.EMAIL BOB.CULBRETH@MT.GOV
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