235
FNUS75 KTFX 231155
FWSTFX

Spot Forecast for Elk Smith Unit 13 RX...USDA
National Weather Service Great Falls MT
555 AM MDT Fri Oct 23 2026

Forecast is based on ignition time of 0700 MDT on October 23.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...
Rain develops this morning, which should change to snow during the
afternoon. Precipitation could be heavy at times. 0.50 to about
0.75 liquid is possible by this evening. Snow accumulations would
be about 1 to 3 inches. Generally dry conditions Sat thru Mon,
with the next storm system to arrive on Tue. Temperatures will be
much cooler than they have been.


.REST OF TODAY...

Sky/weather.........Cloudy (90-100 percent). Rain through the day.
                    Snow in the afternoon.
CWR.................Near 100 percent.
Chance of thunder...10 percent.
Max temperature.....Near 50.
Min humidity........Generally above 70 percent.
Wind (20 ft)........
 Slope/valley.......West winds around 5 mph shifting to the north
                    in the late morning and afternoon.
Mixing height.......2000 ft AGL.
Transport winds.....West 10 to 15 mph shifting to the north 15 to
                    20 mph in the late morning and afternoon.

TIME (MDT)      7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........94  92  90  94  90  99  95  90  92  92  94
Weather cov.....LKY LKY DEF DEF DEF DEF DEF DEF LKY LKY CHC
Weather type....RN  RN  RN  RN  RN  RN  SN  RS  RS  SN  SN
Tstm cov........
CWR.............90  90  90  90  90  100 100 100 100 100 100
Chc of thdr (%).10  10  0   0   0   0   0   0   0   0   0
Temp............50  44  42  39  37  35  34  33  33  33  32
RH..............83  83  83  89  88  92  94  94  92  84  84
20 FT wind dir..SW  W   NW  N   N   N   N   N   N   N   N
20 FT wind spd..5   5   5   10  10  10  10  10  10  5   5
20 FT wind gust.10  10  15  20  20  20  20  20  15  15  15
Mix hgt (kft)...0.5 0.5 0.5 1.5 1.5 1.5 1.5 2.0 1.5 1.5 1.5
Transp wind dir.W   W   NW  NW  N   N   N   N   N   N   N
Transp wind spd.15  10  10  15  15  15  20  15  20  15  15

.TONIGHT...

Sky/weather.........Mostly cloudy (70-80 percent) then becoming
                    partly cloudy (30-40 percent). Chance of snow
                    early in the evening.
CWR.................5 percent.
Chance of thunder...0 percent.
Min temperature.....22-27.
Max humidity........Above 90 percent.
Wind (20 ft)........
 Slope/valley.......North winds around 5 mph early in the evening
                    becoming light.
Mixing height.......500 ft AGL.
Transport winds.....North 10 to 15 mph decreasing to around 5 mph
                    late in the evening, then shifting to the
                    northwest late in the evening shifting to the
                    south overnight shifting to the southwest.

TIME (MDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........95  85  79  67  65  63  57  59  47  39  37  25
Weather cov.....CHC
Weather type....SN
Tstm cov........
CWR.............10  10  10  10  10  10  0   0   0   0   0   0
Chc of thdr (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............32  31  31  30  30  27  28  25  26  27  27  26
RH..............84  84  84  84  84  84  83  86  89  92  92  90
20 FT wind dir..N   N   N   N   NW  W   SW  S   S   S   S   SW
20 FT wind spd..5   5   5   0   0   0   0   0   0   0   0   0
20 FT wind gust.15  10  10  10  5   5   5   5   5   5   5   5
Mix hgt (kft)...1.5 1.5 1.0 0.5 0.5 1.0 1.0 0.5 1.0 0.5 0.5 0.5
Transp wind dir.N   N   N   N   W   NW  S   SE  S   SW  SW  S
Transp wind spd.15  10  10  5   10  5   5   10  10  10  10  10

$$
Forecaster...Brusda
Requested by...Brad Paskey
Type of request...PRESCRIBED
.TAG 2624256.0/TFX
.DELDT 10/23/26
.FormatterVersion 2.0.0
.EMAIL brad.paskey@usda.gov