662
FNUS75 KTFX 311150
FWSTFX
SPOT FORECAST FOR BENTON LAKE RX...U.S. FWS
NATIONAL WEATHER SERVICE GREAT FALLS MT
550 AM MDT TUE MAR 31 2026
FORECAST IS BASED ON IGNITION TIME OF 1200 MDT ON MARCH 31.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
MOISTURE EMBEDDED WITHIN A WESTERLY FLOW ALOFT WILL SPREAD
INCREASING CLOUDS ACROSS THE REGION TODAY. SOME VERY LIGHT SNOW
FLURRIES OR SPRINKLES ARE POSSIBLE EARLY THIS AFTERNOON AS CLOUDS
THICKEN BUT MEASURABLE PRECIPITATION IS NOT EXPECTED. WINDS REMAIN
FROM THE EAST TODAY AND PEAK WITH A FEW AFTERNOON GUSTS AS HIGH AS
AROUND 15 MPH. LESS CLOUDS AND SLIGHTLY WARMER TEMPERATURES ARE
EXPECTED WEDNESDAY WITH WINDS INITIALLY FROM THE EAST TURNING TO
THE SOUTH WEDNESDAY AFTERNOON AND EVENTUALLY SOUTHWEST BY LATE
WEDNESDAY AFTERNOON.
REST OF TODAY
SKY/WEATHER.........INCREASING CLOUDS (45-55 PERCENT).
A FEW FLURRIES OR SPRINKLES POSSIBLE.
CWR.................5 PERCENT.
MAX TEMPERATURE.....41-46.
MIN HUMIDITY........27-32 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......EAST WINDS AROUND 10 MPH.
MIXING HEIGHT.......4000 FT AGL.
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH.
TIME (MDT) 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........35 34 41 48 49 64
WEATHER COV..... SCH SCH
WEATHER TYPE.... SN SN
TSTM COV........
CWR.............10 10 10 10 10 10
TEMP............31 35 39 40 41 43
RH..............43 39 35 34 33 34
20 FT WIND DIR..E E E E E E
20 FT WIND SPD..10 10 10 10 10 10
20 FT WIND GUST.15 15 15 15 15 15
MIX HGT (KFT)...3.5 4.0 4.0 4.0 4.0 4.0
TRANSP WIND DIR.E SE SE SE SE SE
TRANSP WIND SPD.10 10 10 10 10 10
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (50-60 PERCENT) THEN BECOMING
PARTLY CLOUDY (40-50 PERCENT).
CWR.................0 PERCENT.
MIN TEMPERATURE.....23-28.
MAX HUMIDITY........75-80 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......EAST WINDS 5 TO 10 MPH IN THE EVENING SHIFTING
TO THE SOUTH AROUND 5 MPH AFTER MIDNIGHT.
MIXING HEIGHT.......500 FT AGL.
TRANSPORT WINDS.....EAST 5 TO 10 MPH SHIFTING TO THE SOUTHWEST
AROUND 0 MPH EARLY IN THE MORNING.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........61 63 56 55 55 52 51 52 46 40 47 39
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............42 41 37 34 32 31 30 28 28 28 28 27
RH..............35 40 49 52 61 67 67 76 78 75 80 81
20 FT WIND DIR..E E E E E E SE E SE S S S
20 FT WIND SPD..10 10 10 10 5 5 5 5 5 5 5 0
20 FT WIND GUST.15 15 15 15 10 10 10 5
MIX HGT (KFT)...3.5 3.0 1.0 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
TRANSP WIND DIR.SE E E E E E E E E E S SW
TRANSP WIND SPD.10 10 10 10 5 5 5 5 5 5 5 0
WEDNESDAY
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT).
CWR.................5 PERCENT.
MAX TEMPERATURE.....54-59.
MIN HUMIDITY........33-38 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT WINDS BECOMING EAST 5 TO 10 MPH IN THE
AFTERNOON.
MIXING HEIGHT.......5000 FT AGL.
TRANSPORT WINDS.....SOUTH 5 TO 10 MPH INCREASING TO AROUND 15 MPH
LATE IN THE AFTERNOON.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........31 31 31 29 29 29 22 22 22 40 40 40
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 10 10 10 10 10 10
TEMP............26 28 30 34 38 42 46 50 52 54 55 56
RH..............79 77 74 69 63 57 51 46 41 39 38 38
20 FT WIND DIR..S S S S S S SE SE SE E E E
20 FT WIND SPD..0 0 0 0 0 0 5 5 5 10 10 10
20 FT WIND GUST.5 5 5 5 5 5 10 10 10 15 15 15
MIX HGT (KFT)...0.5 0.5 0.5 1.0 1.0 2.0 2.5 3.5 4.0 5.0 5.0 5.0
TRANSP WIND DIR.S SE SE SE S S SW SW SW S S S
TRANSP WIND SPD.5 5 5 5 5 5 10 10 10 10 10 15
FORECASTER...HOENISCH
REQUESTED BY...JIM FORSYTHE
TYPE OF REQUEST...PRESCRIBED
.TAG 2608676.0/TFX
.DELDT 03/31/26
.FORMATTERVERSION 2.0.0
.EMAIL JAMES_FORSYTHE@FWS.GOV
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