771
FNUS75 KTFX 240952
FWSTFX
SPOT FORECAST FOR ARROWLEAF...STATE/LOCAL
NATIONAL WEATHER SERVICE GREAT FALLS MT
252 AM MST TUE FEB 24 2026
FORECAST IS BASED ON IGNITION TIME OF 0500 MST ON FEBRUARY 24.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
...HIGH WIND WATCH IN EFFECT FOR WEDNESDAY THROUGH FRIDAY
MORNING...
DISCUSSION
A PACIFIC WEATHER DISTURBANCE AND ASSOCIATED MOISTURE EMBEDDED
WITHIN A FAST WESTERLY FLOW ALOFT WILL SAG SOUTH OF THE AREA TODAY,
ALLOWING FOR DECREASING CLOUDS AND LESS WINDY CONDITIONS TO
PREVAIL THROUGH THIS AFTERNOON. WINDS INCREASE TONIGHT AHEAD OF
THE NEXT EMBEDDED WEATHER DISTURBANCE, WHICH SHIFTS THROUGH THE
AREA EARLY WEDNESDAY MORNING, BRINGING ANOTHER CHANCE FOR SNOW
SHOWERS. WIND SPEEDS INCREASE SIGNIFICANTLY FOLLOWING THE
DISTURBANCE ON WEDNESDAY WITH STRONG WIND GUSTS IN EXCESS OF 60
MPH LIKELY BY WEDNESDAY AFTERNOON. STRONG WINDS ARE MAINTAINED
THROUGH THURSDAY WITH HIGHEST GUSTS SPEEDS (IN EXCESS OF 70 MPH)
EXPECTED LATE THURSDAY AFTERNOON AND EVENING.
TODAY
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT) THEN BECOMING
MOSTLY SUNNY (35-45 PERCENT).
CWR.................5 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....41-46.
MIN HUMIDITY........43-48 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......WEST WINDS 10 TO 15 MPH WITH GUSTS TO AROUND 25
MPH SHIFTING TO THE SOUTHWEST IN THE AFTERNOON.
MIXING HEIGHT.......4000 FT AGL.
TRANSPORT WINDS.....WEST 20 TO 25 MPH DECREASING TO 10 TO 15 MPH
EARLY IN THE MORNING.
TIME (MST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........75 82 90 88 79 74 73 66 56 41 42 36
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............32 32 31 34 35 36 38 40 41 41 42 40
RH..............56 57 56 54 52 51 48 48 48 48 48 51
20 FT WIND DIR..W W W W W W W SW SW S S S
20 FT WIND SPD..15 15 15 10 10 15 15 15 10 10 10 10
20 FT WIND GUST.30 25 25 25 25 25 25 25 25 25 25 20
MIX HGT (KFT)...1.0 1.0 1.0 1.5 2.0 2.5 3.0 3.5 4.0 3.5 3.5 2.0
TRANSP WIND DIR.W W W W W W W W W W W W
TRANSP WIND SPD.25 20 15 15 15 15 15 15 15 15 15 10
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT) THEN BECOMING
MOSTLY CLOUDY (60-70 PERCENT). CHANCE OF SNOW
SHOWERS.
CWR.................10 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....28-33.
MAX HUMIDITY........59-64 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......BECOMING WINDY. SOUTHWEST WINDS AROUND 10 MPH SHIFTING
TO THE WEST WITH GUSTS TO AROUND 30 MPH EARLY
IN THE EVENING, THEN INCREASING TO 20 TO 25 MPH
WITH GUSTS TO AROUND 45 MPH AFTER MIDNIGHT.
MIXING HEIGHT.......1000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH INCREASING TO WEST 30 TO
35 MPH.
TIME (MST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........40 50 64 67 71 72 70 67 65 64 53 55
WEATHER COV..... SCH CHC CHC CHC CHC CHC SCH CHC
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............38 35 35 34 34 35 35 34 34 34 31 33
RH..............54 57 61 60 61 62 61 60 60 57 56 56
20 FT WIND DIR..S SW SW W W W W W W W W W
20 FT WIND SPD..10 10 10 10 10 15 15 20 25 30 30 35
20 FT WIND GUST.20 20 20 20 20 30 30 40 45 45 50 55
MIX HGT (KFT)...1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.5 1.0 1.5
TRANSP WIND DIR.SW SW W W W W W W W W W W
TRANSP WIND SPD.10 10 10 15 20 20 25 25 30 30 35 35
WEDNESDAY
SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT). CHANCE OF SNOW IN
THE MORNING.
CWR.................5 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....38-43.
MIN HUMIDITY........40-45 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......STRONG WINDS DEVELOPING. WEST WINDS 30 TO 35 MPH WITH
GUSTS TO AROUND 55 MPH INCREASING TO 35 TO 40
MPH WITH GUSTS TO AROUND 65 MPH IN THE AFTERNOON.
MIXING HEIGHT.......3000 FT AGL.
TRANSPORT WINDS.....WEST 40 TO 45 MPH INCREASING TO AROUND 60 MPH.
TIME (MST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........55 55 55 55 55 45 45 45 45 45 45 48
WEATHER COV.....CHC CHC CHC CHC CHC SCH SCH SCH SCH SCH SCH SCH
WEATHER TYPE....SN SN SN SN 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............33 33 34 35 36 37 37 38 38 37 37 36
RH..............54 52 50 49 48 47 46 45 45 45 46 47
20 FT WIND DIR..W W W W W W W W W W W W
20 FT WIND SPD..35 35 40 40 40 40 40 40 45 45 45 50
20 FT WIND GUST.55 55 55 55 55 55 60 60 65 65 65 60
MIX HGT (KFT)...2.0 2.0 2.5 2.5 3.0 3.0 3.0 3.0 2.5 2.5 2.5 2.5
TRANSP WIND DIR.W W W W W W W W W W W W
TRANSP WIND SPD.40 45 55 60 60 60 60 60 65 65 65 65
FORECAST DAYS 3 THROUGH 5
THURSDAY
VERY WINDY. PARTLY CLOUDY. SLIGHT CHANCE OF SNOW. LOWS AROUND 30.
HIGHS IN THE LOWER 40S. WEST WINDS AROUND 40 MPH.
FRIDAY
VERY WINDY. MOSTLY CLOUDY WITH SNOW LIKELY. LOWS IN THE LOWER
30S. HIGHS IN THE UPPER 30S. WEST WINDS AROUND 40 MPH.
SATURDAY
MOSTLY CLOUDY. SNOW. LOWS AROUND 15. HIGHS AROUND 30. NORTH WINDS
AROUND 10 MPH.
FORECASTER...HOENISCH
REQUESTED BY...BOB CULBRETH
TYPE OF REQUEST...PRESCRIBED
.TAG 2602860.7/TFX
.DELDT 02/24/26
.FORMATTERVERSION 2.0.0
.EMAIL BOB.CULBRETH@MT.GOV
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