994
FNUS75 KTFX 132335
FWSTFX

Spot Forecast for Bear Gulch...USFS
National Weather Service Great Falls MT
535 PM MDT Sun Sep 13 2026

Forecast is based on ignition time of 0800 MDT on September 14.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...

Gusty westerly winds will develop in the wake of the departing
low pressure system on Monday. Winds look to routinely gust over
25 mph, especially in the mid morning and early afternoon. There
may also be a spotty shower or two, but the probability for a
shower or storm is running less than 10 percent at this time.
Winds decrease Monday night into Tuesday with continued dry
conditions. Another weak system looks to bring in some clouds and
maintain the cooler temperatures Tuesday night into Wednesday,
although little to no precipitation is expected.

.MONDAY...

Sky/weather.........Mostly sunny (40-50 percent).
CWR.................Less than 10 percent.
Chance of thunder...Less than 10 percent.
Max temperature.....58-63.
Min humidity........36-41 percent.
Wind (20 ft)........
 Slope/valley.......West winds 20 to 25 mph with gusts up to 35 mph
                    decreasing to 15 to 25 mph in the afternoon.
Mixing height.......5000 ft AGL.
Transport winds.....West 20 to 30 mph decreasing to around 20 mph
                    in the afternoon.

TIME (MDT)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........71  51  52  44  27  41  23  19  14  18
Weather cov.....
Weather type....
Tstm cov........
CWR.............10  10  10  10  0   0   0   0   0   0
Chc of thdr (%).0   0   0   0   0   0   0   0   0   0
Temp............48  49  51  52  52  55  58  57  58  59
RH..............66  58  60  59  57  53  40  40  38  40
20 FT wind dir..SW  W   W   W   W   W   W   W   W   W
20 FT wind spd..20  20  20  25  25  20  20  20  20  15
20 FT wind gust.35  35  35  35  35  35  35  35  30  30
Mix hgt (kft)...2.0 3.5 4.0 4.0 4.0 4.5 4.5 5.0 5.0 4.5
Transp wind dir.W   W   W   W   W   W   W   W   W   W
Transp wind spd.20  25  30  30  30  30  30  25  25  20

.MONDAY NIGHT...

Sky/weather.........Partly cloudy (30-40 percent).
CWR.................0 percent.
Chance of thunder...0 percent.
Min temperature.....40-45.
Max humidity........73-78 percent.
Wind (20 ft)........
 Slope/valley.......West winds 5 to 10 mph with gusts to around 25
                    mph decreasing and becoming light southwest overnight.
Mixing height.......500 ft AGL.
Transport winds.....West 15 to 20 mph becoming southwest 5 to 10
                    mph.

TIME (MDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........32  32  32  38  38  38  31  31  31  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............58  58  55  52  51  50  49  48  47  46  44  43
RH..............45  46  52  59  63  66  66  66  68  70  74  75
20 FT wind dir..W   W   W   W   W   W   SW  SW  SW  SW  SW  SW
20 FT wind spd..10  10  10  5   5   5   5   5   5   5   5   5
20 FT wind gust.25  25  25  10  10  10  10  10  10
Mix hgt (kft)...4.0 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.W   W   W   W   W   W   W   SW  SW  SW  SW  SW
Transp wind spd.20  15  10  5   5   5   5   10  5   5   5   5

.TUESDAY...

Sky/weather.........Mostly sunny (40-50 percent).
CWR.................0 percent.
Chance of thunder...0 percent.
Max temperature.....65-70.
Min humidity........34-39 percent.
Wind (20 ft)........
 Slope/valley.......Light and variable winds becoming east around 5 to 10 mph in the
                    afternoon.
Mixing height.......4000 ft AGL.
Transport winds.....South around 5 mph becoming easterly in the afternoon.

TIME (MDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........40  40  40  52  52  52  40  40  40  53  53  53
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............42  42  44  48  50  53  56  59  61  63  65  66
RH..............78  77  70  60  55  52  50  46  42  39  37  37
20 FT wind dir..SW  SW  SW  SE  SE  SE  E   E   E   NE  NE  NE
20 FT wind spd..0   0   0   0   0   0   5   5   5   5   5   5
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 1.5 2.0 2.5 3.5 4.0 4.0 4.0 3.5
Transp wind dir.S   SW  S   S   S   SE  SE  SE  E   E   E   NE
Transp wind spd.5   5   5   5   5   5   5   5   10  10  10  10

$$
Forecaster...Greely
Requested by...Kyle Miller
Type of request...PRESCRIBED
.TAG 2621433.5/TFX
.DELDT 09/13/26
.FormatterVersion 2.0.0
.EMAIL kyle.a.miller@usda.gov, tfx.ops@noaa.gov