578
FNUS75 KTFX 021251
FWSTFX

Spot Forecast for Judith Peak Pile RX...BLM
National Weather Service Great Falls MT
551 AM MST Tue Dec 2 2025

Forecast is based on ignition time of 0700 MST on December 02.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...

Expect periods of snow through the day today and overnight
tonight as a cold front works its way in from the north. Expect
snow to be heavy at times, with snow accumulations through tonight
expected to wind up around the 4-8 inch range. In addition to the
snow, winds will also be rather strong today with gusts to 40 mph
expected, first from the west this morning before winds shift to
the north this afternoon behind the cold front. Snow will taper
off overnight tonight with clearing skies and light winds expected
on Wednesday.

.REST OF TODAY...

Sky/weather.........Cloudy (90-100 percent). Snow through the day.
CWR.................75 percent decreasing to 30 percent late in the
                    morning, then increasing to 45 percent late in
                    the afternoon.
Max temperature.....25-30.
Min humidity........89-94 percent.
Wind (20 ft)........
 Slope/valley.......Breezy. West winds 20 to 25 mph with gusts to
                    around 45 mph shifting to the northwest 15 to
                    20 mph with gusts to around 35 mph late in the
                    morning.
Mixing height.......500 ft AGL.
Transport winds.....Northwest 20 to 25 mph.

TIME (MST)      7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........96  95  95  93  90  90  90  91  93  93  92
Weather cov.....DEF DEF DEF LKY LKY CHC CHC CHC CHC CHC CHC
Weather type....SN  SN  SN  SN  SN  SN  SN  SN  SN  SN  SN
Tstm cov........
CWR.............80  80  80  80  30  30  30  30  30  30  50
Temp............26  26  25  25  25  25  26  25  25  25  23
RH..............94  97  100 100 100 98  100 100 99  100 100
20 FT wind dir..W   W   W   W   W   W   W   NW  NW  NW  NW
20 FT wind spd..25  20  20  20  15  15  15  15  20  20  20
20 FT wind gust.45  40  40  35  30  30  30  30  30  35  35
Mix hgt (kft)...0.1 0.1 0.1 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
Transp wind dir.W   W   W   NW  NW  W   NW  NW  NW  NW  NW
Transp wind spd.25  20  20  25  25  20  25  25  25  25  25

.TONIGHT...

Sky/weather.........Cloudy (85-95 percent). Patchy fog. Snow likely
                    in the evening, then slight chance of snow
                    overnight.
CWR.................45 percent decreasing to 5 percent.
Min temperature.....9-14.
Max humidity........95-100 percent.
Wind (20 ft)........
 Slope/valley.......Northwest winds 15 to 20 mph with gusts to
                    around 35 mph decreasing to 5 to 10 mph
                    overnight.
Mixing height.......0 ft AGL.
Transport winds.....Northwest 20 to 25 mph becoming west around 10
                    mph.

TIME (MST)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........95  93  92  92  92  94  91  92  92  91  90  86
Weather cov.....LKY LKY LKY LKY LKY CHC CHC SCH SCH SCH SCH
Weather type....SN  SN  SN  SN  SN  SN  SN  SNF SNF SNF SNF
Tstm cov........
CWR.............50  50  50  50  50  20  20  20  20  20  20  10
Temp............23  22  21  20  18  18  16  15  14  14  13  13
RH..............100 100 97  97  100 94  98  96  93  92  93  92
20 FT wind dir..NW  NW  NW  NW  NW  NW  NW  NW  NW  NW  W   W
20 FT wind spd..20  20  20  20  15  15  15  10  10  10  10  5
20 FT wind gust.35  35  35  30  30  25  25  20  20  15  15  15
Mix hgt (kft)...0.5 1.0 0.5 0.5 0.5 0.5 0.5 0.5 0.1 0.1 0.1 0.1
Transp wind dir.NW  NW  NW  NW  NW  N   NW  NW  NW  W   W   W
Transp wind spd.25  25  20  20  20  15  15  15  15  10  10  10

.WEDNESDAY...

Sky/weather.........Mostly cloudy (65-75 percent) then becoming
                    mostly sunny (25-35 percent).
CWR.................5 percent.
Max temperature.....22-27.
Min humidity........62-67 percent.
Wind (20 ft)........
 Slope/valley.......West winds around 5 mph shifting to the
                    southwest early in the morning.
Mixing height.......500 ft AGL.
Transport winds.....West 5 to 10 mph.

TIME (MST)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........79  88  82  78  67  56  56  56  31  31  31  30
Weather cov.....
Weather type....
Tstm cov........
CWR.............10  10  10  10  10  0   0   0   0   0   0   0
Temp............13  12  13  14  16  18  20  22  23  22  20  18
RH..............94  95  92  98  98  99  99  97  96  95  94  92
20 FT wind dir..NW  W   W   W   SW  SW  SW  SW  SW  SW  SW  SW
20 FT wind spd..5   5   5   5   5   5   5   5   5   5   5   5
20 FT wind gust.10  10  10  10  10  10  10  10  15  15  15  15
Mix hgt (kft)...0.1 0.1 0.1 0.1 0.1 0.1 0.5 0.5 0.5 0.5 0.1 0.1
Transp wind dir.W   W   W   W   W   W   W   W   W   W   W   W
Transp wind spd.10  10  5   10  10  10  10  10  10  10  10  10

$$
Forecaster...Ludwig
Requested by...Jay Peterman
Type of request...PRESCRIBED
.TAG 2526658.1/TFX
.DELDT 12/02/25
.FormatterVersion 2.0.0
.EMAIL cparker@blm.gov,jpeterman@blm.gov,masnyder@blm.gov, tfx.ops@noaa.gov