Spot Forecast
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
205
FNUS75 KTFX 111056
FWSTFX
Spot Forecast for Gill Gulch Fire...USFS
National Weather Service Great Falls MT
456 AM MDT Mon Aug 11 2025
Forecast is based on forecast start time of 0600 MDT on August 10.
If conditions become unrepresentative...contact the National Weather
Service.
.DISCUSSION...
Today it will be slightly cooler than yesterday with isolated
showers and thunderstorms around the fire. The greatest risk for
thunderstorms is between 1600 and 2000. Tonight there will be
good relative humidity recovery. On Tuesday there will be isolated
showers and thunderstorms around the fire. Today and tomorrow
winds will be around 5 - 10 mph with gusts up to 25 mph.
.TODAY...
Sky/weather.........Mostly sunny (40-50 percent). Slight chance of
showers and thunderstorms late in the
afternoon.
CWR.................5 percent.
Chance of thunder...15 percent.
Max temperature.....70-75.
Min humidity........37-42 percent.
Wind (20 ft)........
Slope/valley.......West winds around 5 mph shifting to the
northwest early in the morning. Gusty and
erratic winds expected near thunderstorms late
in the afternoon.
Ridgetop...........Northwest 15 to 20 mph becoming north 5 to 10
mph early in the morning, then decreasing to
around 0 mph late in the morning shifting to
the west late in the morning increasing to
around 10 mph.
Mixing height.......6500 ft AGL.
Transport winds.....Northwest 5 to 10 mph shifting to the west 10
to 15 mph late in the afternoon.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........33 35 36 38 39 40 41 45 48 52 50 48
Weather cov..... SCH
Weather type.... RW
Tstm cov........ SCH
CWR.............10 10 10 10 10 10 10 10 10 10 10 10
Chc of thdr (%).0 0 0 10 10 10 10 10 10 10 10 20
Temp............54 53 56 59 63 65 67 69 70 71 72 72
RH..............67 67 64 58 55 51 48 45 44 43 43 43
20 FT wind dir..W W NW N NW NW W NW NW NW NW N
20 FT wind spd..5 5 5 5 5 5 5 5 5 10 10 5
20 FT wind gust.10 10 10 10 10 10 15 15 15 15 15 15
Ridge wind dir..NW NW N N N W W W W W W W
Ridge wind spd..20 15 10 5 0 0 5 5 5 10 10 10
Mix hgt (kft)...0.1 0.1 0.1 0.5 2.0 3.5 4.5 6.0 6.5 6.5 6.5 5.5
Transp wind dir.W W NW NW NW W NW W W W W W
Transp wind spd.5 5 5 5 5 10 10 10 15 15 15 10
.TONIGHT...
Sky/weather.........Partly cloudy (25-35 percent).
CWR.................5 percent.
Chance of thunder...13 percent.
Min temperature.....49-54.
Max humidity........75-80 percent.
Wind (20 ft)........
Slope/valley.......North winds around 5 mph shifting to the east
overnight.
Ridgetop...........West around 10 mph shifting to the north early
in the evening, then shifting to the southeast
late in the evening shifting to the south
overnight.
Mixing height.......0 ft AGL.
Transport winds.....West around 10 mph shifting to the northeast
early in the evening, then shifting to the east
in the late evening and overnight.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........46 41 35 30 26 23 19 16 13 10 10 9
Weather cov.....
Weather type....
Tstm cov........
CWR.............10 10 10 10 10 10 0 0 0 0 0 0
Chc of thdr (%).10 10 10 0 0 0 0 0 0 0 0 0
Temp............71 70 67 63 60 58 57 56 55 52 52 52
RH..............43 46 50 57 65 70 71 74 77 80 79 80
20 FT wind dir..N N NE NE NE E E E E E E SE
20 FT wind spd..5 5 5 5 5 10 10 5 5 5 5 5
20 FT wind gust.15 15 15 15 15 15 15 15 10 10 10 10
Ridge wind dir..W NW N N NE E SE S S S S SW
Ridge wind spd..10 10 5 5 5 5 10 10 10 10 10 10
Mix hgt (kft)...4.0 1.5 0.5 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1
Transp wind dir.W N NE NE E E E E E E E E
Transp wind spd.10 10 10 10 10 10 10 10 10 10 5 5
.TUESDAY...
Sky/weather.........Sunny (5-15 percent).
CWR.................0 percent.
Chance of thunder...0 percent.
Max temperature.....75-80.
Min humidity........20-25 percent.
Wind (20 ft)........
Slope/valley.......South winds around 5 mph shifting to the west
in the afternoon.
Ridgetop...........Southwest 10 to 15 mph increasing to west 20 to
25 mph in the afternoon.
Mixing height.......8000 ft AGL.
Transport winds.....East around 5 mph shifting to the south early
in the morning, then shifting to the west late
in the morning increasing to 15 to 20 mph in
the afternoon.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........9 7 6 4 5 5 9 9 9 13 13 13
Weather cov.....
Weather type....
Tstm cov........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
Chc of thdr (%).0 0 0 0 0 0 0 0 0 0 0 0
Temp............51 52 54 57 63 67 69 72 74 75 76 77
RH..............80 78 72 65 52 43 38 33 30 28 26 25
20 FT wind dir..SE SE S S S SW W W W W W W
20 FT wind spd..5 5 5 5 5 5 5 10 10 10 10 10
20 FT wind gust.10 10 10 10 10 15 15 20 20 20 20 20
Ridge wind dir..SW SW SW SW SW W W W W W W W
Ridge wind spd..10 10 10 15 15 15 15 20 20 20 25 25
Mix hgt (kft)...0.1 0.1 0.1 0.1 1.0 3.5 5.5 6.5 7.5 7.5 8.0 8.0
Transp wind dir.E S S S W W W W W W W W
Transp wind spd.5 5 5 5 5 10 15 15 20 20 20 20
$$
Forecaster...Gesell
Requested by...Hannah Pinkerton
Type of request...WILDFIRE
.TAG 2519519.2/TFX
.DELDT 08/1125
.FormatterVersion 2.0.0
.EMAIL jarel.kurtz@usda.gov,nicholas.boucher@usda.gov,todd.a.burbridge@usda.gov,jason.l.gilbert@usda.gov,hannah.pinkerton@usda.gov, tfx.ops@noaa.gov