040
FNUS75 KTFX 251133
FWSTFX

Spot Forecast for Bear Trap RX...USFS
National Weather Service Great Falls MT
533 AM MDT Fri Sep 25 2026

Forecast is based on ignition time of 0800 MDT on September 25.
If conditions become unrepresentative...contact the National Weather
Service.

...Warm afternoon temperatures, low humidity and windy conditions
this afternoon...

...Wind shift with frontal passage early this evening...

.DISCUSSION...
Expect increasing winds this afternoon as a Pacific cold front
approaches. East winds will switch to the west and increase by
late afternoon. Gusty west winds expected with frontal passage,
with the gusty winds lasting a few hours after the front goes
through as well. Frontal passage should be between 6 and 7 PM.

.TODAY...

Sky/weather.........Sunny (10-20 percent).
CWR.................0 percent.
Chance of thunder...0 percent.
Max temperature.....75-80.
Min humidity........23-28 percent.
Wind (20 ft)........
 Slope/valley.......Southeast winds 5 to 10 mph with gusts to
                    around 25 mph shifting to the south with gusts
                    to around 30 mph late in the afternoon.
Mixing height.......8000 ft AGL.
Transport winds.....South 10 to 15 mph increasing to southwest 20
                    to 25 mph late in the afternoon.

TIME (MDT)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........3   1   1   2   2   12  9   6   12  31
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0
Chc of thdr (%).0   0   0   0   0   0   0   0   0   0
Temp............55  59  65  68  72  75  76  77  77  76
RH..............50  47  42  37  34  32  29  28  28  30
20 FT wind dir..SE  SE  SE  S   S   S   S   S   S   S
20 FT wind spd..10  10  10  10  10  10  10  10  10  10
20 FT wind gust.20  20  20  20  25  25  25  25  30  30
Mix hgt (kft)...0.5 0.5 1.0 1.5 2.0 3.0 4.5 5.5 7.5 8.0
Transp wind dir.SE  S   S   S   S   S   S   S   SW  SW
Transp wind spd.10  15  15  15  15  15  20  20  25  20

.TONIGHT...

Sky/weather.........Mostly cloudy (70-80 percent) then becoming
                    mostly clear (10-20 percent). Slight chance of
                    showers and thunderstorms early in the evening.
CWR.................5 percent.
Chance of thunder...10 percent.
Min temperature.....39-44.
Max humidity........68-73 percent.
Wind (20 ft)........
 Slope/valley.......West winds 10 to 15 mph with gusts to around 40
                    mph. Gusty and erratic winds expected near
                    thunderstorms early in the evening.
Mixing height.......500 ft AGL.
Transport winds.....West around 15 mph.

TIME (MDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........73  68  78  20  17  14  11  18  20  15  17  11
Weather cov.....SCH SCH
Weather type....RW  RW
Tstm cov........SCH SCH
CWR.............10  10  10  10  10  10  0   0   0   0   0   0
Chc of thdr (%).20  20  0   0   0   0   0   0   0   0   0   0
Temp............74  69  63  58  55  53  51  49  48  46  44  44
RH..............34  42  51  58  60  62  63  65  68  70  72  72
20 FT wind dir..SW  W   W   W   W   W   W   W   W   W   W   W
20 FT wind spd..10  10  15  15  15  15  15  15  15  15  15  15
20 FT wind gust.25  30  35  35  35  35  35  30  30  30  30  25
Mix hgt (kft)...3.0 1.5 1.0 0.5 0.5 1.0 1.0 1.0 0.5 0.5 1.0 1.0
Transp wind dir.SW  W   W   W   W   W   W   W   W   W   W   W
Transp wind spd.15  15  15  15  15  15  15  15  15  15  15  15

.SATURDAY...

Sky/weather.........Mostly sunny (40-50 percent).
CWR.................0 percent.
Chance of thunder...0 percent.
Max temperature.....57-62.
Min humidity........27-32 percent.
Wind (20 ft)........
 Slope/valley.......West winds 5 to 10 mph with gusts to around 25
                    mph.
Mixing height.......5500 ft AGL.
Transport winds.....West 15 to 20 mph.

TIME (MDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........38  38  38  30  30  30  44  44  44  64  64  64
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............43  42  43  47  50  52  54  56  57  59  59  59
RH..............72  71  68  60  55  49  43  41  37  34  32  31
20 FT wind dir..W   W   W   W   W   W   W   W   W   W   W   W
20 FT wind spd..10  10  10  10  10  10  10  10  10  10  10  10
20 FT wind gust.25  25  25  20  20  20  25  25  25  25  25  25
Mix hgt (kft)...0.5 1.5 1.5 2.5 3.5 3.5 4.0 5.0 5.5 5.0 5.0 4.5
Transp wind dir.W   W   W   W   W   W   W   W   W   W   W   W
Transp wind spd.15  15  15  15  15  20  20  15  20  20  20  20

$$
Forecaster...Brusda
Requested by...Lewis Tafelmeyer
Type of request...PRESCRIBED
.TAG 2622336.2/TFX
.DELDT 09/25/26
.FormatterVersion 2.0.0
.EMAIL william.menning@usda.gov,kyle.a.miller@usda.gov,lewis.tafelmeyer@usda.gov,michael.kaiser@usda.gov,philip.quigley@usda.gov