268
FNUS75 KTFX 121834
FWSTFX

Spot Forecast for Northern Gallatin County Wildfire...Gallatin County
National Weather Service Great Falls MT
1234 PM MDT Sat Jul 12 2025

Forecast is based on forecast start time of 1300 MDT on July 12.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...
Dry conditions are expected in the burn area through Sunday. There
is a small potential for a passing thunderstorm on Sunday evening.
A strong July cold front is expected to move down to the I-90
corridor between Butte and Bozeman on Monday evening, then
stall out. However, it will be very warm until the front arrives,
along with low humidity.

.REST OF TODAY...

Sky/weather.........Sunny (15-25 percent).
CWR.................0 percent.
Chance of thunder...0 percent.
Max temperature.....83-88.
Min humidity........Near 15 percent.
Wind (20 ft)........
 Slope/valley.......West winds around 10 mph.
 Ridgetop...........West 10 to 15 mph.
Mixing height.......9000 ft AGL.
Transport winds.....West 10 to 15 mph.

TIME (MDT)      1PM 2PM 3PM 4PM 5PM
Sky (%).........24  19  25  15  29
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0
Chc of thdr (%).0   0   0   0   0
Temp............78  80  81  83  84
RH..............22  20  19  18  17
20 FT wind dir..W   W   W   W   NW
20 FT wind spd..10  10  10  10  10
20 FT wind gust.15  15  15  15  20
Ridge wind dir..W   W   W   W   NW
Ridge wind spd..10  15  15  15  10
Mix hgt (kft)...6.5 7.5 8.5 8.5 9.0
Transp wind dir.W   W   W   W   W
Transp wind spd.10  15  15  15  15

.TONIGHT...

Sky/weather.........Mostly clear (5-15 percent).
CWR.................0 percent.
Chance of thunder...0 percent.
Min temperature.....54-59.
Max humidity........47-52 percent.
Wind (20 ft)........
 Slope/valley.......North winds 5 to 10 mph in the evening and
                    overnight becoming light.
 Ridgetop...........Northwest around 15 mph then
                    decreasing to 5 to 10 mph overnight.
Mixing height.......500 ft AGL.
Transport winds.....Northwest around 15 mph becoming west around 5
                    mph.

TIME (MDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........22  9   11  11  6   6   4   1   4   2   4   6
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............84  82  78  73  70  68  65  63  62  60  58  57
RH..............18  21  25  29  30  33  36  40  42  45  47  50
20 FT wind dir..NW  NW  N   N   N   N   N   NW  NW  SW  SW  S
20 FT wind spd..10  10  10  10  5   5   5   5   0   0   0   0
20 FT wind gust.20  15  15  15  10  10  10      5   5   5   5
Ridge wind dir..NW  NW  NW  NW  NW  NW  NW  NW  NW  NW  NW  W
Ridge wind spd..10  15  15  20  20  15  15  15  10  10  5   5
Mix hgt (kft)...9.0 8.0 3.0 1.0 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
Transp wind dir.W   NW  N   N   N   N   N   N   N   NW  NW  W
Transp wind spd.15  15  10  10  10  10  5   5   5   5   5   5

.SUNDAY...

Sky/weather.........Sunny (0-10 percent).
CWR.................0 percent.
Chance of thunder...0 percent.
Max temperature.....86-91.
Min humidity........Near 15 percent.
Wind (20 ft)........
 Slope/valley.......Light and variable at 5 to 10 mph.
 Ridgetop...........West 5 to 10 mph.
Mixing height.......8500 ft AGL.
Transport winds.....West 5 to 10 mph.

TIME (MDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........7   12  2   1   8   5   9   9   9   7   7   7
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............56  58  65  69  73  76  79  82  84  85  88  88
RH..............51  52  45  39  35  31  27  25  23  21  20  19
20 FT wind dir..SE  SE  S   S   S   SW  W   W   W   W   NW  NW
20 FT wind spd..0   0   0   0   5   5   5   5   5   5   5   5
20 FT wind gust.5   5   5   5   10  10  15  15  15  15  15  15
Ridge wind dir..W   W   W   W   W   W   W   W   W   W   W   W
Ridge wind spd..5   10  10  10  10  10  10  10  10  10  10  5
Mix hgt (kft)...0.5 0.5 1.0 1.5 3.0 4.5 5.5 6.0 7.0 7.5 8.0 8.5
Transp wind dir.W   SW  W   W   W   W   W   W   W   W   W   W
Transp wind spd.5   5   5   5   5   10  10  10  10  10  10  10

$$
Forecaster...Brusda
Requested by...Kevin
Type of request...WILDFIRE
.TAG 2517872.0/TFX
.DELDT 07/12/25
.FormatterVersion 2.0.0
.EMAIL tfx.ops@noaa.gov