973
FNUS75 KTFX 081505
FWSTFX

Spot Forecast for Gill Gulch Fire...USFS
National Weather Service Great Falls MT
905 AM MDT Fri Aug 8 2025

Forecast is based on forecast start time of 0900 MDT on August 08.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...

Upper level disturbance moving across the region today will keep
temperatures on the cool side, though winds will remain gusty out
of the west. Scattered showers and perhaps an isolated
thunderstorm or two will be around today, though areas with the
best chance for precipitation will be off to the northeast on the
plains. Temperatures remain on the cooler side Saturday, with the
chance for precipitation decreasing significantly. Breezy
westerly winds remain into Saturday.

.REST OF TODAY...

Sky/weather.........Partly sunny (60-70 percent). Slight chance of
                    rain showers in the afternoon.
CWR.................5 percent.
Chance of thunder...7 percent.
Max temperature.....54-59.
Min humidity........46-51 percent.
Wind (20 ft)........
 Slope/valley.......West winds around 15 mph with gusts to around
                    30 mph.
 Ridgetop...........West 25 to 30 mph.
Mixing height.......4000 ft AGL.
Transport winds.....West 20 to 25 mph increasing to 25 to 30 mph
                    late in the afternoon.

TIME (MDT)      9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........51  64  66  60  58  57  69  79  75
Weather cov.....                SCH SCH SCH SCH SCH
Weather type....                RW  RW  RW  RW  RW
Tstm cov........
CWR.............10  10  10  10  10  10  10  10  10
Chc of thdr (%).0   0   0   10  10  10  10  10  10
Temp............39  43  45  47  51  52  54  56  55
RH..............95  78  71  65  62  57  51  51  52
20 FT wind dir..W   W   W   W   W   W   W   W   W
20 FT wind spd..15  15  15  15  15  15  15  15  15
20 FT wind gust.25  25  30  30  30  30  30  30  30
Ridge wind dir..W   W   W   W   W   W   W   W   W
Ridge wind spd..30  30  30  25  25  30  30  30  25
Mix hgt (kft)...1.5 2.0 2.5 3.0 3.5 3.5 4.0 4.0 4.0
Transp wind dir.W   W   W   W   W   W   W   W   W
Transp wind spd.20  20  20  20  25  25  25  30  25

.TONIGHT...

Sky/weather.........Mostly cloudy (55-65 percent) then becoming
                    partly cloudy (45-55 percent) then becoming
                    mostly cloudy (50-60 percent) then becoming
                    partly cloudy (30-40 percent). Slight chance of
                    rain showers early in the evening.
CWR.................5 percent.
Chance of thunder...11 percent.
Min temperature.....43-48.
Max humidity........67-72 percent.
Wind (20 ft)........
 Slope/valley.......West winds 10 to 15 mph with gusts to around 30
                    mph shifting to the southwest overnight.
 Ridgetop...........West 25 to 30 mph decreasing to around 20 mph
                    early in the morning.
Mixing height.......0 ft AGL.
Transport winds.....West 20 to 25 mph decreasing to 10 to 15 mph in
                    the late evening and overnight.

TIME (MDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........65  61  55  50  54  43  39  32  35  28  35  34
Weather cov.....    SCH SCH
Weather type....    RW  RW
Tstm cov........
CWR.............10  10  10  10  10  10  10  10  10  10  10  10
Chc of thdr (%).10  10  10  0   0   0   0   0   0   0   0   0
Temp............55  55  53  50  49  48  49  49  48  47  46  46
RH..............53  54  58  66  71  70  70  69  70  72  72  72
20 FT wind dir..W   W   W   W   W   SW  W   W   SW  W   SW  SW
20 FT wind spd..15  15  15  15  10  10  10  10  10  10  10  10
20 FT wind gust.30  30  30  25  25  25  25  25  20  20  20  20
Ridge wind dir..W   W   W   W   W   W   W   W   W   W   W   W
Ridge wind spd..25  25  25  25  30  30  30  30  30  25  25  20
Mix hgt (kft)...4.0 3.5 2.0 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1
Transp wind dir.W   W   W   W   W   W   W   W   W   W   W   W
Transp wind spd.25  20  20  15  15  15  15  10  10  10  10  10

.SATURDAY...

Sky/weather.........Mostly sunny (30-40 percent).
CWR.................0 percent.
Chance of thunder...4 percent.
Max temperature.....61-66.
Min humidity........30-35 percent.
Wind (20 ft)........
 Slope/valley.......West winds 5 to 10 mph. Gusts up to 25 mph late
                    in the morning.
 Ridgetop...........Northwest 15 to 20 mph.
Mixing height.......6000 ft AGL.
Transport winds.....West 10 to 15 mph.

TIME (MDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........42  48  34  30  29  26  22  22  22  30  30  30
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............45  45  47  49  53  56  58  60  61  62  63  63
RH..............72  72  68  63  56  51  47  43  40  37  35  34
20 FT wind dir..W   SW  W   W   W   W   W   W   W   W   W   W
20 FT wind spd..5   5   10  10  10  10  10  10  10  10  10  10
20 FT wind gust.15  15  15  15  15  20  20  20  20  25  25  25
Ridge wind dir..W   W   W   W   W   W   NW  NW  NW  NW  NW  NW
Ridge wind spd..20  20  20  20  20  15  15  15  20  20  20  20
Mix hgt (kft)...0.1 0.1 0.1 1.0 1.5 3.0 4.0 4.5 5.0 5.5 6.0 6.0
Transp wind dir.W   W   W   W   W   W   W   W   W   W   W   NW
Transp wind spd.10  10  10  15  15  15  15  15  15  15  15  15

$$
Forecaster...Ludwig
Requested by...Hannah Pinkerton
Type of request...WILDFIRE
.TAG 2519519.0/TFX
.DELDT 08/08/25
.FormatterVersion 2.0.0
.EMAIL nicholas.boucher@usda.gov,hannah.pinkerton@usda.gov,jason.l.gilbert@usda.gov,todd.a.burbridge@usda.gov,jarel.kurtz@usda.gov, tfx.ops@noaa.gov