845
FNUS75 KTFX 261518
FWSTFX

Spot Forecast for Treasure Mountain RX...USFS
National Weather Service Great Falls MT
918 AM MDT Sat Apr 26 2025

Forecast is based on ignition time of 0900 MDT on April 26.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...

Chances for scattered showers and a few thunderstorms increases
late this morning and afternoon. The best time window for showers
and storms will be between 1200-1800. A cold front passage Sunday
will bring a northerly shift in winds, along with another round of
showers and a few thunderstorms Sunday afternoon. The main hazards
with thunderstorms will be gusty, erratic winds and brief periods
of moderate to heavy rainfall. There`s a 40% chance for 0.10" of
moisture Saturday, increasing to a 40% chance for 0.25" of rain
through Sunday night.

.REST OF TODAY...

Sky/weather.........Mostly cloudy (75-85 percent). Chance
                    of rain showers late in the morning. Rain
                    showers likely and slight chance of
                    thunderstorms in the afternoon.
CWR.................5 percent increasing to 40 percent in the
                    afternoon.
Chance of thunder...20 percent.
Max temperature.....55-60.
Min humidity........33-38 percent.
Wind (20 ft)........
 Slope/valley.......Southeast winds around 5 mph shifting to the
                    west late in the morning, then increasing to around
                    5 to 10 mph late in the afternoon. Gusty and
                    erratic winds expected near thunderstorms in
                    the afternoon.
Mixing height.......8500 ft AGL.
Transport winds.....Southwest 10 to 15 mph shifting to the west
                    late in the afternoon.

TIME (MDT)      9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........66  68  70  77  78  84  90  86  82
Weather cov.....SCH CHC CHC LKY LKY LKY LKY LKY LKY
Weather type....RW  RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........            SCH SCH SCH SCH SCH SCH
CWR.............10  10  10  40  40  40  40  40  40
Temp............43  47  52  53  54  56  53  53  53
RH..............72  53  41  38  38  38  38  41  49
20 FT wind dir..SE  S   SW  W   W   W   W   W   W
20 FT wind spd..5   5   5   10  10  10  10  10  5
20 FT wind gust.    10  10  15  15  15  15  15  15
Mix hgt (kft)...2.0 3.0 5.0 7.0 7.5 8.5 7.5 6.0 5.0
Transp wind dir.S   S   SW  SW  SW  SW  W   SW  W
Transp wind spd.10  10  10  10  10  15  10  10  10

.TONIGHT...

Sky/weather.........Mostly cloudy (60-70 percent). Chance of
                    thunderstorms early in the evening. Chance of
                    rain showers early in the evening, then slight
                    chance of rain showers late in the evening.
CWR.................5 percent.
Chance of thunder...20 percent.
Min temperature.....36-41.
Max humidity........91-96 percent.
Wind (20 ft)........
 Slope/valley.......West winds around 5 mph shifting to the
                    southwest late in the evening. Gusty and
                    erratic winds expected near thunderstorms early
                    in the evening.
Mixing height.......1000 ft AGL.
Transport winds.....West 5 to 10 mph.

TIME (MDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........78  78  77  76  74  71  69  64  60  56  60  63
Weather cov.....CHC CHC CHC CHC SCH SCH SCH
Weather type....RW  RW  RW  RW  RW  RW  RW
Tstm cov........CHC CHC CHC
CWR.............10  10  10  10  10  10  10  10  10  10  10  10
Temp............50  48  46  44  43  42  40  39  39  39  38  39
RH..............54  62  71  79  84  87  89  90  90  92  93  93
20 FT wind dir..NW  W   W   W   W   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.15  10  10  10  10  10  10  10
Mix hgt (kft)...5.0 3.0 1.5 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Transp wind dir.W   W   W   W   W   W   SW  W   W   W   W   W
Transp wind spd.10  10  10  5   10  10  10  10  10  10  10  10

.SUNDAY...

Sky/weather.........Mostly cloudy (75-85 percent). Chance of rain
                    showers in the morning, then rain showers and
                    slight chance of thunderstorms in the
                    afternoon.
CWR.................5 percent.
Chance of thunder...20 percent.
Max temperature.....49-54.
Min humidity........69-74 percent.
Wind (20 ft)........
 Slope/valley.......Southwest winds around 5 mph shifting to the
                    northwest early in the morning, then shifting
                    to the northeast 10 to 15 mph late in the
                    morning. Gusty and erratic winds expected near
                    thunderstorms in the afternoon.
Mixing height.......4500 ft AGL.
Transport winds.....West 5 to 10 mph shifting to the north late in
                    the morning, then shifting to the northeast 10
                    to 15 mph in the afternoon increasing to around
                    20 mph late in the afternoon.

TIME (MDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........67  69  70  72  76  80  91  91  91  94  94  94
Weather cov.....CHC CHC CHC CHC CHC CHC DEF DEF DEF DEF DEF DEF
Weather type....RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........                        SCH SCH SCH SCH SCH SCH
CWR.............10  10  10  10  10  10  0   0   0   0   0   0
Temp............38  38  40  43  46  49  50  50  50  50  49  47
RH..............95  95  93  87  81  76  74  73  73  74  73  73
20 FT wind dir..SW  SW  W   W   NW  N   NE  NE  NE  NE  NE  NE
20 FT wind spd..5   5   5   5   5   10  10  10  15  15  15  15
20 FT wind gust.                10  15  15  20  20  20  20  20
Mix hgt (kft)...1.0 1.0 1.0 1.5 3.0 4.0 4.5 4.5 4.5 4.0 4.0 3.5
Transp wind dir.W   W   W   NW  N   N   NE  NE  NE  NE  NE  NE
Transp wind spd.10  5   5   5   10  10  10  10  15  15  15  20

$$
Forecaster...Wilson
Requested by...Kyle Miller
Type of request...PRESCRIBED
.TAG 2511683.2/TFX
.DELDT 04/26/25
.FormatterVersion 2.0.0
.EMAIL kyle.a.miller@usda.gov, tfx.ops@noaa.gov