FNUS55 KMSO 030752
FWFMSO
Fire Weather Planning Forecast for Wrn Montana and N Cntrl Idaho
National Weather Service Missoula MT
152 AM MDT Sat May 3 2025
.DISCUSSION...
Idaho (Zones 102 and 103): A cold front will bring a west-
northwest wind shift early this afternoon, with scattered showers and
isolated thunderstorms expanding in coverage overnight. Showers taper
off Sunday but not after a 70% chance of a widespread wetting rain.
Northwest MT (Zones 104 and 105): Warm and dry to start, then a cold
front will bring a westerly wind shift by mid-afternoon today across
the Kootenai, reaching the Flathead in the evening, with scattered
showers and isolated thunderstorms expanding in coverage overnight.
Showers continue through Monday with highest precipitation amounts along
the divide as wrap around easterly flow develops.
West Central MT (Zones 106, 107 and 108): Warm and dry to start, a cold
front will bring a westerly wind shift by mid-afternoon today across
the west Lolo, reaching the east Lolo by the evening, with scattered
showers and isolated thunderstorms expanding in coverage overnight. The
best showers will be overnight Sunday as wrap around easterly flow
develops.
Southwest MT (Zones 109, 110 and 111): Warm and dry to start, a cold
front will bring a west-northwest wind shift across the Bitterroot
this evening, along with shower and isolated thunderstorm activity.
Areas east of the divide will continue to remain warm and dry into
Sunday morning, before the front passes Sunday afternoon. The best
chance for showers will be Sunday night into Monday as wrap around
easterly flow develops.
IDZ102-103-040800-
Palouse/Hells Canyon-Clearwater/Nez Perce-
1252 AM PDT Sat May 3 2025
.TODAY...
* Sky/Weather.........Partly cloudy.
* Max Temperature.....70-80 valleys and 60-70 ridges.
* Min Humidity........30-40 percent.
* 20-Foot Winds.......
* Lower Elevation......Calm to becoming southwest 10-15 mph in the
afternoon.
* Ridge Top............South 5-10 mph becoming west 10-20 mph in
the afternoon.
* Mixing Height.......2 kft agl until 1000, then 4 kft agl until
1200, then 5 kft agl until 1400, then 6 kft agl until 1700, then
5 kft agl.
* Transport Winds.....West 10 mph until 1600, then northwest 15
mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...10 percent.
.TONIGHT...
* Sky/Weather.........Mostly cloudy. Chance of rain showers and
slight chance of thunderstorms in the evening, then rain after
midnight.
* Min Temperature.....40-45 valleys and 30-35 ridges.
* Max Humidity........71-81 percent.
* 20-Foot Winds.......
* Lower Elevation......West 5-15 mph.
* Ridge Top............Northwest 10-20 mph.
* Mixing Height.......4 kft agl until 2000, then 2 kft agl.
* Transport Winds.....Northwest 15 mph.
* Chance Lightning....15 percent in the Palouse/Hells Canyon...and
30 percent in the Clearwater/Nez Perce.
* CWR (> 0.10 Inch)...70 percent.
.SUNDAY...
* Sky/Weather.........Mostly cloudy. Rain and snow likely. Snow
level 5000 feet.
* Max Temperature.....50-60 valleys and 40-45 ridges.
* Min Humidity........50-60 percent valleys and 60-70 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............Northwest 5-15 mph.
* Mixing Height.......3 kft agl until 1200. 6 kft agl after 1700.
* Transport Winds.....Northwest 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...20 percent.
.MONDAY...Partly cloudy with chance of snow and slight chance of rain.
Chance of precipitation 30 percent. Lows 35-45. Highs 55-65. Min
humidities 25-35 percent. North winds 10-15 mph.
.TUESDAY...Mostly clear. Lows 35-45. Highs 65-75. Min humidities
20-30 percent. East winds 10-15 mph.
.WEDNESDAY...Mostly clear. Lows 40-50. Highs 70-80. Southeast winds
10-15 mph.
.THURSDAY...Mostly clear. Slight chance of rain. Chance of rain
20 percent. Lows 45-55. Highs 65-75.
.FRIDAY...Partly cloudy. Lows 45-55. Highs 70-80.
$$
MTZ104-105-040800-
Kootenai-Flathead/Glacier Park-
152 AM MDT Sat May 3 2025
.TODAY...
* Sky/Weather.........Partly cloudy.
* Max Temperature.....75-85 valleys and 58-68 ridges.
* Min Humidity........16-26 percent valleys and 28-38 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Southwest 5-15 mph.
* Ridge Top............Southwest 10-20 mph.
* Mixing Height.......1-2 kft agl until 1000. 9 kft agl after 1400.
* Transport Winds.....South 10 mph until 1400, then southwest 15
mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.TONIGHT...
* Sky/Weather.........Partly cloudy. Chance of rain showers and
slight chance of thunderstorms in the evening, then chance of
rain after midnight.
* Min Temperature.....35-45.
* Max Humidity........75-85 percent.
* 20-Foot Winds.......
* Lower Elevation......West 10-20 mph.
* Ridge Top............West 10-20 mph.
* Mixing Height.......7 kft agl until 1900. 1-2 kft agl after 2000.
* Transport Winds.....West 15 mph.
* Chance Lightning....20 percent in the Kootenai...and near 0
percent in the Flathead/Glacier Park.
* CWR (> 0.10 Inch)...20 percent.
.SUNDAY...
* Sky/Weather.........Mostly cloudy. Rain likely. Snow level 7000
feet.
* Max Temperature.....55-65 valleys and 40-50 ridges.
* Min Humidity........47-57 percent valleys and 66-76 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......West 10-15 mph.
* Ridge Top............West 10-15 mph.
* Mixing Height.......3 kft agl until 1000. 6 kft agl after 1600.
* Transport Winds.....West 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...50 percent in the Kootenai...and 70 percent
in the Flathead/Glacier Park.
.MONDAY...Mostly cloudy with chance of rain and snow. Chance of
precipitation 30 percent. Lows 35-45. Highs 50-60. Min humidities
20-30 percent. North winds 10-15 mph.
.TUESDAY...Mostly clear. Lows 30-40. Highs 60-70. Min humidities
15-25 percent. East winds 10-15 mph.
.WEDNESDAY...Clear. Lows 40-50. Highs 65-75. South winds 10-20 mph.
.THURSDAY...Mostly clear. Slight chance of rain. Chance of rain
20 percent. Lows 45-55. Highs 65-75.
.FRIDAY...Mostly clear. Lows 40-50. Highs 65-75.
$$
MTZ106-108-040800-
West Lolo-East Lolo-
152 AM MDT Sat May 3 2025
.TODAY...
* Sky/Weather.........Partly cloudy.
* Max Temperature.....73-83 valleys and 65-75 ridges.
* Min Humidity........18-28 percent.
* 20-Foot Winds.......
* Lower Elevation......Calm to becoming upslope/upvalley 4-8 mph in
the afternoon.
* Ridge Top............Southwest 10-20 mph.
* Mixing Height.......1-2 kft agl until 1000. 10 kft agl after
1400.
* Transport Winds.....Southwest 10 mph until 1700, then 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.TONIGHT...
* Sky/Weather.........Partly cloudy. Chance of rain showers and
slight chance of thunderstorms. Rain likely after midnight.
* Min Temperature.....35-45.
* Max Humidity........84-94 percent valleys and 76-86 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......West 10-20 mph.
* Ridge Top............West 15-25 mph.
* Mixing Height.......8 kft agl until 1900. 1-2 kft agl after 2000.
* Transport Winds.....West 15 mph.
* Chance Lightning....20 percent.
* CWR (> 0.10 Inch)...50 percent in the West Lolo...and 10 percent
in the East Lolo.
.SUNDAY...
* Sky/Weather.........Mostly cloudy. Rain likely. Snow level 7500
feet.
* Max Temperature.....45-55.
* Min Humidity........46-56 percent valleys and 55-65 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......West 5-15 mph.
* Ridge Top............West 5-15 mph.
* Mixing Height.......3 kft agl until 1100. 5 kft agl after 1600.
* Transport Winds.....West 15 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...30 percent in the West Lolo...and 10 percent
in the East Lolo.
.MONDAY...Mostly cloudy with chance of rain and snow. Chance of
precipitation 30 percent. Lows 35-45. Highs 50-60. Min humidities
25-35 percent. North winds 10-15 mph.
.TUESDAY...Mostly clear. Lows 30-40. Highs 60-70. Min humidities
25-35 percent. East winds 10-15 mph.
.WEDNESDAY...Mostly clear. Lows 35-45. Highs 70-80. Southeast winds
10-15 mph.
.THURSDAY...Mostly clear. Slight chance of rain. Chance of rain
20 percent. Lows 45-55. Highs 65-75.
.FRIDAY...Mostly clear. Lows 40-50. Highs 70-80.
$$
MTZ107-040800-
Flathead Reservation-
152 AM MDT Sat May 3 2025
.TODAY...
* Sky/Weather.........Mostly sunny.
* Max Temperature.....80-85 valleys and 60-65 ridges.
* Min Humidity........17-27 percent valleys and 24-34 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to becoming upslope/upvalley 4-8 mph in
the afternoon.
* Ridge Top............Southwest 5-15 mph.
* Mixing Height.......Below 500 ft to 1 kft agl until 1000. 10 kft
agl after 1500.
* Transport Winds.....South 10 mph until 1300, then southwest 10
mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.TONIGHT...
* Sky/Weather.........Mostly cloudy. Chance of rain showers and
slight chance of thunderstorms in the evening, then chance of
rain after midnight.
* Min Temperature.....45-50 valleys and 35-40 ridges.
* Max Humidity........73-83 percent valleys and 94 percent ridges.
* 20-Foot Winds.......
* Lower Elevation......West 10-20 mph.
* Ridge Top............West 15-25 mph.
* Mixing Height.......7 kft agl until 1900. Below 500 ft to 1 kft
agl after 2000.
* Transport Winds.....West 15 mph.
* Chance Lightning....20 percent.
* CWR (> 0.10 Inch)...30 percent.
.SUNDAY...
* Sky/Weather.........Mostly cloudy. Rain likely. Snow level 7500
feet.
* Max Temperature.....55-60 valleys and 35-40 ridges.
* Min Humidity........52-62 percent valleys and 72-82 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......West 5-15 mph.
* Ridge Top............West 10-20 mph.
* Mixing Height.......3 kft agl until 1300. 4 kft agl after 1700.
* Transport Winds.....West 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...40 percent.
.MONDAY...Mostly cloudy with chance of rain. Chance of rain 30 percent.
Lows 40-50. Highs 55-65. Min humidities 25-35 percent. North winds
10-15 mph.
.TUESDAY...Mostly clear. Lows 35-45. Highs 65-75. Min humidities
20-30 percent. Northeast winds 10-15 mph.
.WEDNESDAY...Mostly clear. Lows 40-50. Highs 75-85. South winds
10-15 mph.
.THURSDAY...Mostly clear. Lows 50-60. Highs 70-80.
.FRIDAY...Mostly clear. Lows 45-55. Highs 75-85.
$$
MTZ109-040800-
Bitterroot-
152 AM MDT Sat May 3 2025
.TODAY...
* Sky/Weather.........Partly cloudy.
* Max Temperature.....80-85 valleys and 65-70 ridges.
* Min Humidity........13-18 percent valleys and 20-30 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to becoming upslope/upvalley 4-8 mph in
the afternoon.
* Ridge Top............Southwest 5-15 mph.
* Mixing Height.......1-2 kft agl until 1000, then 3 kft agl until
1100, then 5 kft agl until 1200, then 7 kft agl until 1300, then
9 kft agl until 1400, then 11 kft agl until 1600, then 10 kft agl
until 1700, then 8 kft agl.
* Transport Winds.....South 10 mph until 1400, then southwest 15
mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...10 percent.
.TONIGHT...
* Sky/Weather.........Mostly cloudy. Chance of rain showers and
slight chance of thunderstorms. Chance of rain after midnight.
* Min Temperature.....40-50 valleys and 35-40 ridges.
* Max Humidity........75-85 percent.
* 20-Foot Winds.......
* Lower Elevation......Northwest 10-15 mph.
* Ridge Top............Northwest 10-20 mph.
* Mixing Height.......6 kft agl until 1900. 1-2 kft agl after 2000.
* Transport Winds.....Southwest 10 mph until 1900, then northwest
10 mph.
* Chance Lightning....30 percent in the Darby, Sula, and West Fork
Districts...and 25 percent in areas north of Hamilton.
* CWR (> 0.10 Inch)...10 percent.
.SUNDAY...
* Sky/Weather.........Mostly cloudy. Rain likely. Snow likely in
the afternoon.
* Max Temperature.....55-60 valleys and 40-45 ridges.
* Min Humidity........43-53 percent valleys and 61-71 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Northwest 5-15 mph.
* Ridge Top............Northwest 5-15 mph.
* Mixing Height.......3 kft agl until 1200, then 4 kft agl.
* Transport Winds.....Northwest 15 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...10 percent.
.MONDAY...Mostly cloudy with chance of rain and snow. Chance of
precipitation 50 percent. Lows 35-45. Highs 45-55. Min humidities
30-40 percent. North winds 10-20 mph.
.TUESDAY...Partly cloudy. Lows 30-40. Highs 55-65. Min humidities
25-35 percent. Northeast winds 10-20 mph.
.WEDNESDAY...Mostly clear. Lows 35-45. Highs 65-75. Southeast winds
10-15 mph.
.THURSDAY...Mostly clear. Slight chance of rain. Chance of rain
20 percent. Lows 45-55. Highs 65-75.
.FRIDAY...Partly cloudy with slight chance of rain showers and
thunderstorms. Chance of precipitation 20 percent. Lows 40-50. Highs
70-80.
$$
MTZ110-111-040800-
Deerlodge/West Beaverhead-East Beaverhead-
152 AM MDT Sat May 3 2025
.TODAY...
* Sky/Weather.........Partly cloudy.
* Max Temperature.....75-80 valleys and 60-70 ridges.
* Min Humidity........10-15 percent valleys and 11-21 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......South 10-20 mph.
* Ridge Top............South 10-20 mph.
* Mixing Height.......1-2 kft agl until 1000. Greater than 12 kft
agl after 1600.
* Transport Winds.....South 10 mph until 1500, then southwest 15
mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.TONIGHT...
* Sky/Weather.........Partly cloudy. Slight chance of rain showers
and thunderstorms.
* Min Temperature.....40-45.
* Max Humidity........70-80 percent valleys and 58-68 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Southwest 5-15 mph.
* Ridge Top............Southwest 5-15 mph.
* Mixing Height.......11 kft agl until 1900. Below 500 ft to 1 kft
agl after 2000.
* Transport Winds.....South 15 mph until 2200, then southeast 10
mph until 0200, then southwest 10 mph until 0500, then west 10
mph.
* Chance Lightning....20 percent in the Deerlodge/West
Beaverhead...and near 0 percent in the East Beaverhead.
* CWR (> 0.10 Inch)...0 percent.
.SUNDAY...
* Sky/Weather.........Partly cloudy. Slight chance of rain in the
morning. Slight chance of thunderstorms in the afternoon.
* Max Temperature.....63-73 valleys and 53-63 ridges.
* Min Humidity........30-40 percent.
* 20-Foot Winds.......
* Lower Elevation......Northwest 5-15 mph.
* Ridge Top............Northwest 10-20 mph.
* Mixing Height.......2 kft agl until 1000, then 3 kft agl until
1100, then 5 kft agl until 1200, then 7 kft agl until 1300, then
8 kft agl until 1400, then 10 kft agl until 1600, then 9 kft agl
until 1700, then 7 kft agl.
* Transport Winds.....Northwest 10 mph until 0900, then northeast
10 mph until 1100, then east 10 mph until 1200, then south 10 mph
until 1400, then northwest 15 mph.
* Chance Lightning....20 percent in the Deerlodge/West
Beaverhead...and 25 percent in the East Beaverhead.
* CWR (> 0.10 Inch)...40 percent in the Deerlodge/West
Beaverhead...and 10 percent in the East Beaverhead.
.MONDAY...Colder. Mostly cloudy with rain and snow likely. Chance of
precipitation 70 percent. Lows 35-45. Highs 40-50. Min humidities
40-50 percent. North winds 20-30 mph.
.TUESDAY...Partly cloudy with chance of rain and slight chance of snow.
Chance of precipitation 30 percent. Lows 30-40. Highs 50-60. Min
humidities 30-40 percent. Northeast winds 20-30 mph.
.WEDNESDAY...Warmer. Mostly clear. Lows 30-40. Highs 65-75. South winds
10-15 mph.
.THURSDAY...Mostly clear. Slight chance of rain showers. Chance of
showers 20 percent. Lows 40-50. Highs 65-75.
.FRIDAY...Partly cloudy with slight chance of rain showers. Chance of
showers 20 percent. Lows 40-50. Highs 65-75.
$$