Spot Forecast
Issued by NWS Great Falls, MT

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FNUS75 KTFX 081225
FWSTFX

Spot Forecast for Judith Peak RX...BLM
National Weather Service Great Falls MT
525 AM MST Mon Dec 8 2025

Forecast is based on ignition time of 0700 MST on December 08.
If conditions become unrepresentative...contact the National Weather
Service.

...HIGH WIND WARNING IN EFFECT FROM 6 PM THIS EVENING TO 3 PM MST
TUESDAY...

.DISCUSSION...
Expect periods of strong winds to develop later this morning and
then continue into Tuesday morning. There is a chance for passing
rain/snow showers on Tuesday. There is a better chance for
widespread snow and much colder temperatures Wed thru Fri.

.REST OF TODAY...

Sky/weather.........Mostly cloudy (65-75 percent).
CWR.................5 percent.
Max temperature.....39-44.
Min humidity........55-60 percent.
Wind (20 ft)........
 Slope/valley.......Windy. West winds 25 to 30 mph with gusts to
                    around 60 mph.
Mixing height.......1000 ft AGL.
Transport winds.....West 30 to 35 mph decreasing to 25 to 30 mph
                    late in the afternoon.

TIME (MST)      7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........18  26  31  54  40  51  60  71  67  67  74
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   10
Temp............29  30  30  31  32  34  36  36  38  35  34
RH..............67  67  73  85  83  79  81  81  79  78  74
20 FT wind dir..W   W   W   W   W   W   W   W   W   W   W
20 FT wind spd..30  30  35  35  30  30  30  30  30  30  30
20 FT wind gust.50  50  45  40  55  55  55  55  55  55  55
Mix hgt (kft)...0.1 0.1 0.5 0.5 1.0 1.0 1.0 1.0 0.5 0.5 0.5
Transp wind dir.W   W   W   W   W   W   W   W   W   W   W
Transp wind spd.30  30  35  35  35  40  40  35  30  30  25

.TONIGHT...

Sky/weather.........Mostly cloudy (75-85 percent). Rain
                    or snow likely early in the morning.
CWR.................5 percent increasing to 15 percent early in the
                    morning.
Min temperature.....28-33.
Max humidity........91-96 percent.
Wind (20 ft)........
 Slope/valley.......Windy. West winds 25 to 30 mph with gusts to
                    around 55 mph.
Mixing height.......500 ft AGL.
Transport winds.....West 25 to 30 mph increasing to around 35 mph
                    overnight.

TIME (MST)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........74  72  76  77  79  84  81  83  83  83  83  88
Weather cov.....                                            LKY
Weather type....                                            RN
Tstm cov........
CWR.............10  10  10  10  10  10  10  10  10  10  10  20
Temp............34  34  35  35  33  36  37  37  40  40  40  40
RH..............72  71  70  73  73  73  71  71  72  75  73  74
20 FT wind dir..W   W   W   SW  SW  W   W   W   W   W   W   W
20 FT wind spd..25  25  25  30  30  30  30  30  30  35  35  35
20 FT wind gust.45  45  55  55  55  55  55  55  55  55  55  55
Mix hgt (kft)...0.1 0.1 0.1 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  25  25  30  30  30  30  35  35  35  35  35

.TUESDAY...

Sky/weather.........Mostly cloudy (70-80 percent). Rain likely in
                    the morning. Snow likely early in the morning,
                    then chance of snow late in the morning.
CWR.................15 percent decreasing to 0 percent late in the
                    afternoon.
Max temperature.....38-43.
Min humidity........64-69 percent.
Wind (20 ft)........
 Slope/valley.......Very windy. West winds 35 to 40 mph with gusts
                    to around 60 mph becoming northwest 15 to 20
                    mph with gusts to around 40 mph late in the
                    morning.
Mixing height.......2500 ft AGL.
Transport winds.....West 35 to 40 mph shifting to the northwest 40
                    to 45 mph in the late morning and early
                    afternoon, then decreasing to 30 to 35 mph
                    in the afternoon.

TIME (MST)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........85  83  84  88  87  86  86  86  83  83  83  66
Weather cov.....LKY LKY LKY LKY LKY CHC CHC CHC CHC CHC CHC
Weather type....RN  RN  RS  RS  RS  SN  SN  SN  SN  SN  SN
Tstm cov........
CWR.............20  20  20  20  20  20  20  20  20  20  20  0
Temp............40  40  39  37  37  32  31  30  29  28  27  27
RH..............73  74  77  82  94  94  96  93  89  87  86  84
20 FT wind dir..W   W   W   W   W   NW  NW  NW  W   W   W   W
20 FT wind spd..35  40  35  35  35  20  20  20  20  20  20  15
20 FT wind gust.55  60  60  55  50  40  40  40  30  30  30  30
Mix hgt (kft)...0.1 0.1 0.5 1.0 1.5 2.0 1.5 2.0 2.5 2.0 1.5 0.5
Transp wind dir.W   W   W   W   W   NW  NW  NW  NW  NW  W   W
Transp wind spd.35  40  40  45  45  40  40  40  40  35  30  25

$$
Forecaster...Brusda
Requested by...Case Parker
Type of request...PRESCRIBED
.TAG 2527105.0/TFX
.DELDT 12/08/25
.FormatterVersion 2.0.0
.EMAIL cparker@blm.gov