Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Missoula, MT
Issued by NWS Missoula, MT
439
FNUS55 KMSO 252035
FWFMSO
Fire Weather Planning Forecast for Wrn Montana and N Cntrl Idaho
National Weather Service Missoula MT
235 PM MDT Fri Apr 25 2025
...Discussion and forecast updated for easterly winds into the
evening...
.DISCUSSION...
Idaho (Zones 102 and 103): Elevated easterly winds develop late this
evening and continue into the overnight, generally less than 20 mph in
mid to upper slopes. Warming trend continues through Saturday. Isolated
showers around the Red River district this afternoon. Better chance for
scattered showers and thunderstorms with potential for measurable
precipitation Saturday afternoon through the late evening. Outflow from
nearby storms could produce 40 mph gusts, briefly heavy rainfall, and
even some small hail. Scattered showers continue Sunday with a cold
front from the northwest late Sunday into early Monday bringing in
cooler temperatures and moderately strong west winds. Confidence remains
high in a 3-4 day period of ridging, warm temperatures, and dry
conditions by the mid to late part of next week.
Northwest MT (Zones 104 and 105): Elevated easterly winds develop late this
evening and continue into the overnight, generally less than 20 mph in
mid to upper slopes exposed to the east, except 30 mph or less over the
Glacier Region. Warming trend continues through Saturday. Light east-
southeast winds continue today. Chance for isolated to scattered showers
and thunderstorms with potential for pockets of measurable
precipitation Saturday afternoon through the late evening. Outflow from
nearby storms could produce 40 mph gusts, briefly heavy rainfall, and
even some small hail. Scattered showers continue Sunday with a cold
front from the northwest late Sunday into early Monday bringing in
cooler temperatures and moderately strong west winds. Confidence remains
high in a 3-4 day period of ridging, warm temperatures, and dry
conditions by the mid to late part of next week.
West Central MT (Zones 106, 107 and 108): Elevated easterly winds
develop late this evening and continue into the overnight, generally
less than 20 mph in mid to upper slopes exposed to the east, except 35
mph or less in the higher Rattlesnake Mountains. Warming trend continues
through Saturday. Chance for scattered showers and thunderstorms with
potential for measurable precipitation Saturday afternoon through the
late evening. Outflow from nearby storms could produce 40 mph gusts,
briefly heavy rainfall, and even some small hail. Scattered showers
continue Sunday with a cold front from the northwest Sunday bringing in
cooler temperatures and moderately strong west winds. Confidence remains
high in a 3-4 day period of ridging, warm temperatures, and dry
conditions by the mid to late part of next week.
Southwest MT (Zones 109, 110 and 111): Elevated easterly winds develop late this
evening and continue into the overnight, generally less than 25 mph in
mid to upper slopes exposed to the east.Warming trend continues through
Saturday. Isolated to scattered showers and thunderstorms with the
potential for spots of measurable accumulation across southwest Montana
this afternoon through the late evening under light east- southeast
winds. Outflow from nearby storms could produce 40 mph gusts, briefly
heavy rainfall, and even some small hail. Another chance for isolated to
scattered showers and thunderstorms Saturday afternoon through the late
evening. Scattered showers continue Sunday with a cold front from the
northwest late Sunday into early Monday bringing in cooler temperatures
and moderately strong west winds. Confidence remains high in a 3-4 day
period of ridging, warm temperatures, and dry conditions by the mid to
late part of next week.
IDZ102-103-262045-
Palouse/Hells Canyon-Clearwater/Nez Perce-
135 PM PDT Fri Apr 25 2025
.REST OF TODAY...
* Sky/Weather.........Partly cloudy.
* Max Temperature.....68-78 valleys and 55-65 ridges.
* Min Humidity........15-25 percent.
* 20-Foot Winds.......
* Lower Elevation......Northeast 5-15 mph.
* Ridge Top............Southeast 10-15 mph.
* Mixing Height.......9 kft agl.
* Transport Winds.....East 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.TONIGHT...
* Sky/Weather.........Partly cloudy. Slight chance of rain.
* Min Temperature.....38-48.
* Max Humidity........46-56 percent.
* 20-Foot Winds.......
* Lower Elevation......Northeast 5-15 mph becoming variable less
than 5 mph after midnight.
* Ridge Top............Southeast 5-15 mph.
* Mixing Height.......7 kft agl until 1900. Below 500 ft to 1 kft
agl after 2000.
* Transport Winds.....East 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.SATURDAY...
* Sky/Weather.........Partly cloudy. Slight chance of rain in the
morning. Chance of thunderstorms in the afternoon.
* Max Temperature.....70-80 valleys and 55-65 ridges.
* Min Humidity........20-30 percent valleys and 29-39 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to becoming upslope/upvalley 4-8 mph in
the afternoon.
* Ridge Top............South 5-10 mph becoming west in the
afternoon.
* Mixing Height.......1-2 kft agl until 1000. 7 kft agl after 1400.
* Transport Winds.....Variable less than 10 mph until 1000. West 10
mph after 1700.
* Chance Lightning....30 percent.
* CWR (> 0.10 Inch)...10 percent in the Palouse/Hells Canyon...and
40 percent in the Clearwater/Nez Perce.
.SUNDAY...Mostly cloudy with chance of rain showers and slight chance
of thunderstorms. Chance of precipitation 30 percent. Lows 45-55. Highs
60-70. Min humidities 30-40 percent. Northwest winds 10-15 mph.
.MONDAY...Partly cloudy with chance of rain. Chance of rain 30 percent.
Lows 40-50. Highs 60-70. Min humidities 30-40 percent. Northwest winds
10-15 mph.
.TUESDAY...Cooler. Mostly cloudy with rain. Chance of rain 80 percent.
Lows 40-50. Highs 50-60. West winds 10-15 mph.
.WEDNESDAY...Partly cloudy with chance of rain. Chance of rain
30 percent. Lows 40-50. Highs 60-70.
.THURSDAY...Mostly clear. Lows 40-50. Highs 70-80.
$$
MTZ104-105-262045-
Kootenai-Flathead/Glacier Park-
235 PM MDT Fri Apr 25 2025
.REST OF TODAY...
* Sky/Weather.........Mostly sunny.
* Max Temperature.....65-75 valleys and 50-60 ridges.
* Min Humidity........8-18 percent valleys and 22-32 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Upslope/upvalley 4-8 mph.
* Ridge Top............Southeast 10-20 mph.
* Mixing Height.......7 kft agl.
* Transport Winds.....Southeast 10 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.
.TONIGHT...
* Sky/Weather.........Partly cloudy.
* Min Temperature.....30-40.
* Max Humidity........68-78 percent valleys and 53-63 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......East 10-15 mph in the evening becoming
downslope/downvalley 5-10 mph.
* Ridge Top............Southeast 10-20 mph.
* Mixing Height.......7 kft agl until 1900. Below 500 ft to 1 kft
agl after 2000.
* Transport Winds.....East 10 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.
.SATURDAY...
* Sky/Weather.........Partly cloudy. Snow level 7500 feet.
* Max Temperature.....70-75 valleys and 53-63 ridges.
* Min Humidity........12-22 percent valleys and 34-44 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to becoming upslope/upvalley 4-8 mph in
the afternoon.
* Ridge Top............Southeast 5-15 mph becoming southwest 5-10
mph in the afternoon.
* Mixing Height.......1-2 kft agl until 1000. 8 kft agl after 1400.
* Transport Winds.....Variable less than 10 mph until 1200, then
southwest 10 mph.
* Chance Lightning....Near 0 percent in the Kootenai...and 20
percent in the Flathead/Glacier Park.
* CWR (> 0.10 Inch)...0 percent.
.SUNDAY...Partly cloudy with chance of rain. Chance of rain 30 percent.
Lows 40-50. Highs 60-70. Min humidities 30-40 percent. Northwest winds
10-15 mph.
.MONDAY...Partly cloudy with chance of rain and snow. Chance of
precipitation 40 percent. Lows 35-45. Highs 55-65. Min humidities
35-45 percent. Northeast winds 10-15 mph.
.TUESDAY...Cooler. Mostly cloudy with rain likely. Chance of rain
60 percent. Lows 40-50. Highs 45-55. Southwest winds 10-20 mph.
.WEDNESDAY...Partly cloudy with chance of rain and snow. Chance of
precipitation 30 percent. Lows 40-50. Highs 55-65.
.THURSDAY...Partly cloudy. Lows 35-45. Highs 60-70.
$$
MTZ106-108-262045-
West Lolo-East Lolo-
235 PM MDT Fri Apr 25 2025
.REST OF TODAY...
* Sky/Weather.........Mostly sunny.
* Max Temperature.....60-70 valleys and 53-63 ridges.
* Min Humidity........12-22 percent valleys and 19-29 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......East 5-15 mph.
* Ridge Top............East 10-20 mph.
* Mixing Height.......8 kft agl.
* Transport Winds.....East 15 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.
.TONIGHT...
* Sky/Weather.........Partly cloudy.
* Min Temperature.....35-40.
* Max Humidity........60-70 percent valleys and 51-61 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Northeast 10-15 mph in the evening becoming
downslope/downvalley 5-10 mph.
* Ridge Top............East 15-25 mph.
* Mixing Height.......7 kft agl until 1900. Below 500 ft to 1 kft
agl after 2000.
* Transport Winds.....East 15 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.
.SATURDAY...
* Sky/Weather.........Partly cloudy. Slight chance of thunderstorms
in the afternoon.
* Max Temperature.....65-75 valleys and 58-68 ridges.
* Min Humidity........19-29 percent valleys and 35-45 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to becoming upslope/upvalley 4-8 mph in
the afternoon.
* Ridge Top............Southeast 5-15 mph becoming southwest 5-10
mph in the afternoon.
* Mixing Height.......1-2 kft agl until 1000, then 3 kft agl until
1100, then 4 kft agl until 1200, then 5 kft agl until 1300, then
7 kft agl until 1500, then 8 kft agl until 1700, then 6 kft agl.
* Transport Winds.....Southeast 10 mph until 1100. West 10 mph
after 1500.
* Chance Lightning....25 percent.
* CWR (> 0.10 Inch)...10 percent.
.SUNDAY...Mostly cloudy with chance of rain showers and slight chance
of thunderstorms. Chance of precipitation 30 percent. Lows 40-50. Highs
60-70. Min humidities 35-45 percent. West winds 5-10 mph.
.MONDAY...Mostly cloudy with chance of rain showers and slight chance
of thunderstorms. Chance of precipitation 30 percent. Lows 40-50. Highs
55-65. Min humidities 35-45 percent. North winds 10-15 mph.
.TUESDAY...Mostly cloudy with chance of rain. Chance of rain
50 percent. Lows 40-50. Highs 50-60. Southwest winds 10-15 mph.
.WEDNESDAY...Mostly cloudy with chance of rain. Chance of rain
30 percent. Lows 40-50. Highs 55-65.
.THURSDAY...Mostly clear. Lows 35-45. Highs 65-75.
$$
MTZ107-262045-
Flathead Reservation-
235 PM MDT Fri Apr 25 2025
.REST OF TODAY...
* Sky/Weather.........Sunny.
* Max Temperature.....70-75 valleys and 50-55 ridges.
* Min Humidity........11-21 percent valleys and 25-35 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Upslope/upvalley 4-8 mph.
* Ridge Top............Southeast 15-25 mph.
* Mixing Height.......7 kft agl.
* Transport Winds.....East 15 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.
.TONIGHT...
* Sky/Weather.........Partly cloudy.
* Min Temperature.....35-45.
* Max Humidity........46-56 percent.
* 20-Foot Winds.......
* Lower Elevation......North 5-10 mph in the evening becoming
downslope/downvalley 2-5 mph.
* Ridge Top............Southeast 15-25 mph.
* Mixing Height.......7 kft agl until 1900. Below 500 ft to 1 kft
agl after 2000.
* Transport Winds.....East 15 mph until 0500, then variable less
than 10 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.
.SATURDAY...
* Sky/Weather.........Partly cloudy. Slight chance of thunderstorms
in the afternoon.
* Max Temperature.....70-75 valleys and 50-55 ridges.
* Min Humidity........19-29 percent valleys and 33-43 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to becoming upslope/upvalley 4-8 mph in
the afternoon.
* Ridge Top............Southeast 5-15 mph becoming west in the
afternoon.
* Mixing Height.......1-2 kft agl until 1000. 7 kft agl after 1500.
* Transport Winds.....Variable less than 10 mph until 1100. West 10
mph after 1300.
* Chance Lightning....20 percent.
* CWR (> 0.10 Inch)...0 percent.
.SUNDAY...Mostly cloudy with chance of rain. Chance of rain 30 percent.
Lows 45-55. Highs 65-75. Min humidities 30-40 percent. West winds
10-15 mph.
.MONDAY...Partly cloudy with slight chance of rain. Chance of rain
20 percent. Lows 40-50. Highs 60-70. Min humidities 30-40 percent.
North winds 10-15 mph.
.TUESDAY...Mostly cloudy with rain likely. Chance of rain 60 percent.
Lows 45-55. Highs 55-65. Southwest winds 10-20 mph.
.WEDNESDAY...Mostly cloudy with slight chance of rain. Chance of rain
20 percent. Lows 40-50. Highs 60-70.
.THURSDAY...Partly cloudy. Lows 40-50. Highs 70-80.
$$
MTZ109-262045-
Bitterroot-
235 PM MDT Fri Apr 25 2025
.REST OF TODAY...
* Sky/Weather.........Partly cloudy.
* Max Temperature.....70-75 valleys and 55-60 ridges.
* Min Humidity........10-20 percent valleys and 21-31 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Northeast 5-15 mph.
* Ridge Top............Southeast 10-20 mph.
* Mixing Height.......8 kft agl.
* Transport Winds.....East 10 mph.
* Chance Lightning....Near 0 percent in the Darby, Sula, and West
Fork Districts...and 0 percent in areas north of Hamilton.
* CWR (> 0.10 Inch)...0 percent.
.TONIGHT...
* Sky/Weather.........Partly cloudy. Slight chance of rain.
* Min Temperature.....35-40.
* Max Humidity........53-63 percent.
* 20-Foot Winds.......
* Lower Elevation......Southeast 5-15 mph.
* Ridge Top............East 10-20 mph becoming southeast 5-15 mph
after midnight.
* Mixing Height.......7 kft agl until 1900. 1-2 kft agl after 2000.
* Transport Winds.....Southeast 15 mph.
* Chance Lightning....Near 0 percent in the Darby, Sula, and West
Fork Districts...and 0 percent in areas north of Hamilton.
* CWR (> 0.10 Inch)...0 percent.
.SATURDAY...
* Sky/Weather.........Partly cloudy. Slight chance of rain in the
morning. Chance of thunderstorms in the afternoon.
* Max Temperature.....70-75 valleys and 55-60 ridges.
* Min Humidity........16-26 percent valleys and 28-38 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............South 5-10 mph becoming west in the
afternoon.
* 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 1400, then
8 kft agl until 1600, then 6 kft agl until 1700, then 5 kft agl.
* Transport Winds.....South 10 mph until 1200, then southwest 10
mph.
* Chance Lightning....30 percent.
* CWR (> 0.10 Inch)...40 percent in the Darby, Sula, and West Fork
Districts...and 10 percent in areas north of Hamilton.
.SUNDAY...Mostly cloudy with chance of rain showers and thunderstorms.
Chance of precipitation 40 percent. Lows 40-50. Highs 55-65. Min
humidities 40-50 percent. Northwest winds 10-15 mph.
.MONDAY...Mostly cloudy with rain showers likely with possible snow and
thunderstorms. Chance of precipitation 60 percent. Lows 40-50. Highs
55-65. Min humidities 30-40 percent. Northwest winds 10-15 mph.
.TUESDAY...Partly cloudy with chance of rain and snow. Chance of
precipitation 30 percent. Lows 35-45. Highs 50-60. West winds
10-15 mph.
.WEDNESDAY...Mostly cloudy with chance of rain and snow. Chance of
precipitation 30 percent. Lows 35-45. Highs 55-65.
.THURSDAY...Mostly clear. Lows 35-45. Highs 65-75.
$$
MTZ110-111-262045-
Deerlodge/West Beaverhead-East Beaverhead-
235 PM MDT Fri Apr 25 2025
.REST OF TODAY...
* Sky/Weather.........Partly cloudy.
* Max Temperature.....55-65 valleys and 50-55 ridges.
* Min Humidity........18-28 percent.
* 20-Foot Winds.......
* Lower Elevation......East 5-15 mph.
* Ridge Top............Southeast 5-15 mph.
* Mixing Height.......8 kft agl.
* Transport Winds.....Southeast 15 mph.
* Chance Lightning....0 percent in the Deerlodge/West
Beaverhead...and near 0 percent in the East Beaverhead.
* CWR (> 0.10 Inch)...0 percent.
.TONIGHT...
* Sky/Weather.........Partly cloudy. Chance of rain showers.
* Min Temperature.....30-40.
* Max Humidity........76-86 percent valleys and 70-80 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......East 5-15 mph decreasing to variable less
than 5 mph after midnight.
* Ridge Top............Southeast 10-20 mph.
* Mixing Height.......8 kft agl until 1900. Below 500 ft to 1 kft
agl after 0300.
* Transport Winds.....Southeast 15 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...10 percent.
.SATURDAY...
* Sky/Weather.........Partly cloudy. Slight chance of rain in the
morning. Slight chance of thunderstorms in the afternoon.
* Max Temperature.....65-70 valleys and 50-60 ridges.
* Min Humidity........15-25 percent valleys and 27-37 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. 11 kft agl after
1300.
* Transport Winds.....South 15 mph until 1300, then southwest 20
mph.
* Chance Lightning....25 percent in the Deerlodge/West
Beaverhead...and 20 percent in the East Beaverhead.
* CWR (> 0.10 Inch)...30 percent in the Deerlodge/West
Beaverhead...and 10 percent in the East Beaverhead.
.SUNDAY...Mostly cloudy with rain showers and slight chance of
thunderstorms. Chance of precipitation 80 percent. Lows 35-45. Highs
55-65. Min humidities 45-55 percent. Northwest winds 10-20 mph.
.MONDAY...Rain showers with possible snow and thunderstorms. Chance of
precipitation near 100 percent. Lows 30-40. Highs 50-60. Min humidities
30-40 percent. North winds 15-25 mph.
.TUESDAY...Partly cloudy with chance of rain showers. Chance of showers
30 percent. Lows 35-45. Highs 50-60. Southwest winds 10-20 mph.
.WEDNESDAY...Mostly cloudy with chance of rain showers and slight
chance of snow showers. Chance of precipitation 30 percent. Lows 35-45.
Highs 50-60.
.THURSDAY...Mostly clear. Lows 30-40. Highs 60-70.
$$