Spot Forecast
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
984
FNUS75 KTFX 171051
FWSTFX
Spot Forecast for Jericho Mountain Fire...USFS
National Weather Service Great Falls MT
451 AM MDT Tue Jun 17 2025
Forecast is based on forecast start time of 0600 MDT on June 17.
If conditions become unrepresentative...contact the National Weather
Service.
...Warmer with low humidity Wed/Thu...
...Thunderstorm potential Thu/Fri...
...Wet/cool/snow potential Sat night into Sun...
.DISCUSSION...
Generally dry conditions are expected today thru Thur morning. It
will turn warmer with lower humidity Wed/Thu. Overall winds will
be on the lighter side. However, storms are possible
Thu/Fri...some of which could have strong wind gusts. Some heavy
rain possible with storms Fri.
Looking ahead...A cold front moves southward on Saturday, with
snow levels falling Sat night into Sun. By Sun morning, snow
levels could be near 6000 feet near the burn area. Precip amounts
will not be heavy this weekend, but do plan for cool/wet
conditions, with some snow potential.
.TODAY...
Sky/weather.........Partly sunny (50-60 percent) then becoming
sunny (5-15 percent).
CWR.................0 percent.
Chance of thunder...10 percent.
Max temperature.....63-68.
Min humidity........23-28 percent.
Wind (20 ft)........
Slope/valley.......West winds 10 to 15 mph.
Ridgetop...........West around 15 mph.
Mixing height.......9000 ft AGL.
Transport winds.....West 10 to 15 mph increasing to around 20 mph
late in the afternoon.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........52 70 38 13 8 7 3 3 4 5 10 7
Weather cov.....
Weather type....
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 10
Temp............44 46 49 53 55 57 60 61 61 63 64 64
RH..............70 64 60 54 50 43 38 35 31 29 28 28
20 FT wind dir..W W W W W W W W W W W W
20 FT wind spd..5 10 10 10 10 10 15 15 15 15 15 10
20 FT wind gust.10 10 15 15 15 15 15 15 20 20 20 20
Ridge wind dir..NW NW W W W W W W W W W W
Ridge wind spd..15 15 15 15 15 15 15 15 15 15 15 15
Mix hgt (kft)...0.1 0.1 0.5 1.5 3.5 5.5 7.0 8.0 8.5 9.0 9.0 9.0
Transp wind dir.W W W W W W W W W W W W
Transp wind spd.15 10 15 15 15 15 15 15 15 15 15 20
.TONIGHT...
Sky/weather.........Mostly clear (15-25 percent).
CWR.................0 percent.
Chance of thunder...0 percent.
Min temperature.....46-51.
Max humidity........48-53 percent.
Wind (20 ft)........
Slope/valley.......West winds 5 to 10 mph shifting to the
downslope overnight.
Ridgetop...........Northwest 15 to 20 mph.
Mixing height.......500 ft AGL.
Transport winds.....West 15 to 20 mph decreasing to around 10 mph
in the late evening and overnight.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........18 21 29 34 21 9 10 11 13 6 7 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............65 63 61 56 55 53 52 52 51 50 50 49
RH..............28 30 35 41 42 44 47 45 47 48 49 51
20 FT wind dir..W W W W W W W SW SW W SW SW
20 FT wind spd..10 10 10 5 5 5 5 5 5 5 5 5
20 FT wind gust.20 15 15 15 15 15 15 10 10 10 10 10
Ridge wind dir..W NW NW NW NW NW NW W W W W W
Ridge wind spd..15 15 15 15 15 15 15 15 15 15 15 20
Mix hgt (kft)...9.0 8.0 4.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5
Transp wind dir.W W W W W W W W W W W W
Transp wind spd.20 15 15 10 10 10 10 10 10 10 10 10
.WEDNESDAY...
Sky/weather.........Sunny (5-15 percent).
CWR.................0 percent.
Chance of thunder...0 percent.
Max temperature.....70-75.
Min humidity........22-27 percent.
Wind (20 ft)........
Slope/valley.......West winds 5 to 10 mph.
Ridgetop...........West 15 to 20 mph.
Mixing height.......9500 ft AGL.
Transport winds.....West 10 to 15 mph increasing to around 20 mph
in the afternoon.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........8 18 7 5 4 4 6 6 6 16 16 16
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 10 10 10 10 10 10
Temp............48 50 53 56 60 61 64 66 67 69 70 70
RH..............53 51 50 46 42 38 34 32 30 28 27 26
20 FT wind dir..W SW W W W W W W W W W W
20 FT wind spd..5 5 5 10 10 10 10 10 10 10 10 10
20 FT wind gust.10 15 15 15 15 15 20 20 20 20 20 20
Ridge wind dir..W W W W W W W W W W W W
Ridge wind spd..20 20 15 15 15 15 15 15 20 20 20 20
Mix hgt (kft)...0.1 0.1 1.5 2.5 4.0 5.5 7.0 8.0 9.0 9.5 9.5 9.5
Transp wind dir.W W W W W W W W W W W W
Transp wind spd.10 10 15 15 15 15 20 20 20 20 20 20
.FORECAST DAYS 3 THROUGH 7...
.JUNETEENTH...
Mostly clear. Slight chance of showers and thunderstorms
in the late afternoon. Lows in the upper 40s. Highs in the
lower 70s. West winds around 10 mph.
.FRIDAY...
Mostly cloudy. Showers likely and chance of thunderstorms. Lows
in the upper 40s. Highs in the mid 60s. Northwest winds around
10 mph.
.SATURDAY...
Cooler. Mostly cloudy with showers and chance of thunderstorms.
Lows in the lower 40s. Highs in the lower 50s. West winds around
10 mph.
.SUNDAY...
Colder. Showers with possible snow showers and
isolated thunderstorms likely. Lows in the mid 30s. Highs
in the lower 40s.
.MONDAY...
Warmer. Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the mid 30s. Highs in the mid 50s.
$$
Forecaster...Brusda
Requested by...Michael Kaiser
Type of request...WILDFIRE
.TAG 2516006.2/TFX
.DELDT 06/17/25
.FormatterVersion 2.0.0
.EMAIL michael.kaiser@usda.gov,mthdc@firenet.gov