Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Missoula, MT
Issued by NWS Missoula, MT
286
FNUS55 KMSO 220858
FWFMSO
Fire Weather Planning Forecast for Wrn Montana and N Cntrl Idaho
National Weather Service Missoula MT
258 AM MDT Thu May 22 2025
.DISCUSSION...
Idaho (Zones 102 and 103): After a 80 to 90% chance of a wetting rain
today, showers become less frequent Friday. Saturday and Sunday are
expected to be warm and dry. The advertised high pressure ridge to start
next week, looks to be a dirty ridge. Moisture is expected to move up
from the south increasing instability and chance for thunderstorms.
Northwest MT (Zones 104 and 105): After a 20 to 30% chance of a wetting
rain today, showers become less frequent Friday. Saturday and Sunday
are expected to be warm and dry. The advertised high pressure ridge to
start next week, looks to be a dirty ridge. Moisture is expected to move
up from the south increasing instability and chance for thunderstorms.
West Central MT (Zones 106, 107 and 108): After a 50 to 80% chance of a
wetting rain today, showers become less frequent Friday. Saturday and
Sunday are expected to be warm and dry. The advertised high pressure
ridge to start next week, looks to be a dirty ridge. Moisture is
expected to move up from the south increasing instability and chance for
thunderstorms.
Southwest MT (Zones 109, 110 and 111): After a 80 to 90% chance of a wetting rain
today, showers become less frequent Friday. Saturday and Sunday are
expected to be warm and dry. The advertised high pressure ridge to start
next week, looks to be a dirty ridge. Moisture is expected to move up
from the south increasing instability and chance for thunderstorms.
View Weather Briefing videos on our YouTube channel
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IDZ102-103-230900-
Palouse/Hells Canyon-Clearwater/Nez Perce-
158 AM PDT Thu May 22 2025
.TODAY...
* Sky/Weather.........Mostly cloudy. Chance of rain in the morning,
then rain showers and slight chance of thunderstorms in the
afternoon. Snow level 7500 feet.
* Max Temperature.....65-70 valleys and 50-55 ridges.
* Min Humidity........44-54 percent valleys and 52-62 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 1700, then 4 kft agl.
* Transport Winds.....Southeast 10 mph until 1000. West 10 mph
after 1300.
* Chance Lightning....25 percent in the Palouse/Hells Canyon...and
30 percent in the Clearwater/Nez Perce.
* CWR (> 0.10 Inch)...40 percent in the Palouse/Hells Canyon...and
80 percent in the Clearwater/Nez Perce.
.TONIGHT...
* Sky/Weather.........Partly cloudy. Chance of rain showers and
thunderstorms. Snow level 7500 feet.
* Min Temperature.....35-45.
* Max Humidity........81-91 percent valleys and 88-98 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Variable less than 5 mph in the evening
becoming downslope/downvalley 1-3 mph.
* Ridge Top............West 5-10 mph.
* Mixing Height.......3 kft agl until 2000, then below 500 ft to 1
kft agl.
* Transport Winds.....West 10 mph until 0300, then variable less
than 10 mph.
* Chance Lightning....30 percent.
* CWR (> 0.10 Inch)...10 percent in the Palouse/Hells Canyon...and
40 percent in the Clearwater/Nez Perce.
.FRIDAY...
* Sky/Weather.........Partly cloudy. Slight chance of rain. Snow
level 7500 feet.
* Max Temperature.....65-75 valleys and 50-60 ridges.
* Min Humidity........33-43 percent valleys and 41-51 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to becoming upslope/upvalley 4-8 mph in
the afternoon.
* Ridge Top............West 5-10 mph.
* Mixing Height.......1-2 kft agl until 0900. 7 kft agl after 1600.
* Transport Winds.....Variable less than 10 mph until 0900, then
west 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...10 percent.
.SATURDAY...Mostly clear. Lows 40-50. Highs 70-80. Min humidities
25-35 percent. North winds 5-10 mph.
.SUNDAY...Mostly clear. Lows 45-55. Highs 75-85. Min humidities
20-30 percent. East winds 5-10 mph.
.MEMORIAL DAY...Partly cloudy with chance of rain showers and slight
chance of thunderstorms. Chance of precipitation 30 percent. Lows
50-60. Highs 75-85. Northeast winds 5-10 mph.
.TUESDAY...Partly cloudy with chance of rain showers and slight chance
of thunderstorms. Chance of precipitation 30 percent. Lows 50-60. Highs
75-85.
.WEDNESDAY...Partly cloudy with slight chance of rain. Chance of rain
20 percent. Lows 50-60. Highs 75-85.
$$
MTZ104-105-230900-
Kootenai-Flathead/Glacier Park-
258 AM MDT Thu May 22 2025
.TODAY...
* Sky/Weather.........Mostly cloudy. Snow level 7000 feet.
* Max Temperature.....65-70 valleys and 45-55 ridges.
* Min Humidity........29-39 percent valleys and 43-53 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............Southeast 5-15 mph.
* Mixing Height.......1-2 kft agl until 0900. 7 kft agl after 1200.
* Transport Winds.....Southeast 10 mph until 1300, then south 10
mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...10 percent.
.TONIGHT...
* Sky/Weather.........Mostly cloudy. Chance of rain showers in the
evening, then chance of rain after midnight. Snow level 7500
feet.
* Min Temperature.....35-45.
* Max Humidity........89-99 percent valleys and 80-90 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......West 5-10 mph.
* Ridge Top............West 5-10 mph.
* Mixing Height.......6 kft agl until 1900. 1-2 kft agl after 2100.
* Transport Winds.....Variable less than 10 mph.
* Chance Lightning....15 percent in the Kootenai...and 20 percent
in the Flathead/Glacier Park.
* CWR (> 0.10 Inch)...20 percent in the Kootenai...and 40 percent
in the Flathead/Glacier Park.
.FRIDAY...
* Sky/Weather.........Partly cloudy. Chance of rain. Snow level
7500 feet.
* Max Temperature.....65-70 valleys and 48-58 ridges.
* Min Humidity........33-43 percent valleys and 52-62 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............Southwest 5-10 mph.
* Mixing Height.......2 kft agl until 0900. 7 kft agl after 1400.
* Transport Winds.....West 10 mph.
* Chance Lightning....Near 0 percent in the Kootenai...and 15
percent in the Flathead/Glacier Park.
* CWR (> 0.10 Inch)...20 percent.
.SATURDAY...Mostly clear. Lows 40-50. Highs 65-75. Min humidities
20-30 percent. Southwest winds 5-10 mph.
.SUNDAY...Mostly clear. Lows 40-50. Highs 70-80. Min humidities
15-25 percent. South winds 5-10 mph.
.MEMORIAL DAY...Mostly clear. Slight chance of rain. Chance of rain
20 percent. Lows 45-55. Highs 75-85. Southeast winds 5-10 mph.
.TUESDAY...Partly cloudy with slight chance of rain showers and
thunderstorms. Chance of precipitation 20 percent. Lows 50-60. Highs
70-80.
.WEDNESDAY...Mostly clear. Slight chance of rain. Chance of rain
20 percent. Lows 50-60. Highs 75-85.
$$
MTZ106-108-230900-
West Lolo-East Lolo-
258 AM MDT Thu May 22 2025
.TODAY...
* Sky/Weather.........Mostly cloudy. Slight chance of rain in the
morning. Slight chance of thunderstorms in the afternoon. Snow
level 7500 feet.
* Max Temperature.....60-65 valleys and 50-60 ridges.
* Min Humidity........37-47 percent valleys and 43-53 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............Southeast 5-15 mph becoming south 5-10 mph
in the afternoon.
* Mixing Height.......1-2 kft agl until 0900, then 3 kft agl until
1100, then 5 kft agl until 1200, then 6 kft agl until 1300, then
7 kft agl until 1600, then 6 kft agl until 1700, then 5 kft agl.
* Transport Winds.....Southeast 10 mph until 1200, then south 10
mph until 1700, then northwest 10 mph.
* Chance Lightning....20 percent.
* CWR (> 0.10 Inch)...30 percent in the West Lolo...and 60 percent
in the East Lolo.
.TONIGHT...
* Sky/Weather.........Partly cloudy. Chance of rain showers and
slight chance of thunderstorms. Slight chance of rain after
midnight.
* Min Temperature.....35-45.
* Max Humidity........87-97 percent valleys and 81-91 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......West 5-10 mph.
* Ridge Top............West 5-10 mph.
* Mixing Height.......3 kft agl until 2000. Below 500 ft to 1 kft
agl after 0100.
* Transport Winds.....West 10 mph.
* Chance Lightning....25 percent.
* CWR (> 0.10 Inch)...30 percent in the West Lolo...and 50 percent
in the East Lolo.
.FRIDAY...
* Sky/Weather.........Partly cloudy. Chance of rain. Snow level
7500 feet.
* Max Temperature.....60-70 valleys and 53-63 ridges.
* Min Humidity........29-39 percent valleys and 42-52 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............West 5-10 mph.
* Mixing Height.......2 kft agl until 0900. 8 kft agl after 1400.
* Transport Winds.....West 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...10 percent.
.SATURDAY...Mostly clear. Lows 40-50. Highs 65-75. Min humidities
15-25 percent. Northwest winds 5-10 mph.
.SUNDAY...Mostly clear. Lows 40-50. Highs 75-85. Min humidities
15-25 percent. East winds 5-10 mph.
.MEMORIAL DAY...Mostly clear. Slight chance of rain showers and
thunderstorms. Chance of precipitation 20 percent. Lows 45-55. Highs
75-85. East winds 5-10 mph.
.TUESDAY...Partly cloudy with chance of rain showers and slight chance
of thunderstorms. Chance of precipitation 30 percent. Lows 50-60. Highs
75-85.
.WEDNESDAY...Partly cloudy with slight chance of rain showers and
thunderstorms. Chance of precipitation 20 percent. Lows 50-60. Highs
75-85.
$$
MTZ107-230900-
Flathead Reservation-
258 AM MDT Thu May 22 2025
.TODAY...
* Sky/Weather.........Mostly cloudy. Snow level 7000 feet.
* Max Temperature.....65-70 valleys and 45-50 ridges.
* Min Humidity........37-47 percent valleys and 45-55 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............Southeast 5-15 mph becoming southwest in the
afternoon.
* Mixing Height.......2 kft agl until 1000, then 3 kft agl until
1100, then 4 kft agl until 1200, then 5 kft agl until 1300, then
8 kft agl until 1700, then 7 kft agl.
* Transport Winds.....East 10 mph until 1300. Variable less than 10
mph after 1700.
* Chance Lightning....Near 0 percent in areas west of Highway
93...and 20 percent in the Mission Mtns and areas east of Highway
93.
* CWR (> 0.10 Inch)...10 percent in areas west of Highway 93...and
30 percent in the Mission Mtns and areas east of Highway 93.
.TONIGHT...
* Sky/Weather.........Mostly cloudy. Chance of rain showers and
slight chance of thunderstorms in the evening, then slight chance
of rain after midnight.
* Min Temperature.....40-45.
* Max Humidity........81-91 percent valleys and 87-97 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Southwest 5-10 mph.
* Ridge Top............Southwest 5-10 mph.
* Mixing Height.......4 kft agl until 2000, then below 500 ft to 1
kft agl.
* Transport Winds.....West 10 mph.
* Chance Lightning....20 percent.
* CWR (> 0.10 Inch)...20 percent in areas west of Highway 93...and
40 percent in the Mission Mtns and areas east of Highway 93.
.FRIDAY...
* Sky/Weather.........Partly cloudy. Snow level 7500 feet.
* Max Temperature.....65-70 valleys and 45-50 ridges.
* Min Humidity........32-42 percent valleys and 50-60 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............West 10-15 mph.
* Mixing Height.......2 kft agl until 0900. 7 kft agl after 1400.
* Transport Winds.....West 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...10 percent.
.SATURDAY...Mostly clear. Lows 40-50. Highs 70-80. Min humidities
15-25 percent. West winds 5-10 mph.
.SUNDAY...Mostly clear. Lows 45-55. Highs 75-85. Min humidities
15-25 percent. East winds 5-10 mph.
.MEMORIAL DAY...Mostly clear. Slight chance of rain showers and
thunderstorms. Chance of precipitation 20 percent. Lows 50-60. Highs
80-90. East winds 5-10 mph.
.TUESDAY...Partly cloudy with slight chance of rain showers and
thunderstorms. Chance of precipitation 20 percent. Lows 50-60. Highs
75-85.
.WEDNESDAY...Partly cloudy. Lows 50-60. Highs 80-90.
$$
MTZ109-230900-
Bitterroot-
258 AM MDT Thu May 22 2025
.TODAY...
* Sky/Weather.........Mostly cloudy. Chance of rain and snow in the
morning, then rain showers and chance of thunderstorms in the
afternoon.
* Max Temperature.....60-65 valleys and 50-55 ridges.
* Min Humidity........40-50 percent valleys and 51-61 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............Southeast 5-10 mph becoming southwest in the
afternoon.
* Mixing Height.......2 kft agl until 1000, then 5 kft agl until
1200, then 6 kft agl until 1600, then 4 kft agl.
* Transport Winds.....South 10 mph until 1500, then west 15 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)...70 percent.
.TONIGHT...
* Sky/Weather.........Partly cloudy. Chance of rain showers and
thunderstorms. Slight chance of rain after midnight. Areas of
frost after midnight. Snow level 7500 feet.
* Min Temperature.....30-40.
* Max Humidity........79-89 percent.
* 20-Foot Winds.......
* Lower Elevation......West 5-10 mph in the evening becoming
downslope/downvalley 2-5 mph.
* Ridge Top............West 5-15 mph.
* Mixing Height.......3 kft agl until 2100, then 1-2 kft agl.
* Transport Winds.....West 10 mph until 0500, then variable less
than 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)...30 percent.
.FRIDAY...
* Sky/Weather.........Partly cloudy. Areas of frost in the morning.
Snow level 7500 feet.
* Max Temperature.....65-70 valleys and 55-60 ridges.
* Min Humidity........26-36 percent valleys and 36-46 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to becoming upslope/upvalley 4-8 mph in
the afternoon.
* Ridge Top............West 5-10 mph.
* Mixing Height.......2 kft agl until 0900. 8 kft agl after 1500.
* Transport Winds.....Southwest 10 mph until 1400, then west 15
mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...10 percent.
.SATURDAY...Mostly clear. Lows 35-45. Highs 65-75. Min humidities
15-25 percent. Northwest winds 5-10 mph.
.SUNDAY...Mostly clear. Lows 40-50. Highs 70-80. Min humidities
15-25 percent. North winds 5-10 mph.
.MEMORIAL DAY...Mostly clear. Chance of rain showers and slight chance
of thunderstorms. Chance of precipitation 30 percent. Lows 45-55. Highs
75-85. Southeast winds 5-10 mph.
.TUESDAY...Partly cloudy with chance of rain showers and slight chance
of thunderstorms. Chance of precipitation 30 percent. Lows 45-55. Highs
70-80.
.WEDNESDAY...Partly cloudy with slight chance of rain showers and
thunderstorms. Chance of precipitation 20 percent. Lows 45-55. Highs
75-85.
$$
MTZ110-111-230900-
Deerlodge/West Beaverhead-East Beaverhead-
258 AM MDT Thu May 22 2025
.TODAY...
* Sky/Weather.........Mostly cloudy. Chance of rain in the morning.
Slight chance of thunderstorms in the afternoon.
* Max Temperature.....58-68 valleys and 50-60 ridges.
* Min Humidity........28-38 percent.
* 20-Foot Winds.......
* Lower Elevation......Calm to becoming south 10-20 mph in the
afternoon.
* Ridge Top............South 10-20 mph.
* Mixing Height.......Below 500 ft to 1 kft agl until 0900. 10 kft
agl after 1500.
* Transport Winds.....South 15 mph until 1500, then southwest 20
mph.
* Chance Lightning....25 percent in the Deerlodge/West
Beaverhead...and 30 percent in the East Beaverhead.
* CWR (> 0.10 Inch)...70 percent in the Deerlodge/West
Beaverhead...and 30 percent in the East Beaverhead.
.TONIGHT...
* Sky/Weather.........Partly cloudy. Chance of rain showers and
thunderstorms.
* Min Temperature.....30-35.
* Max Humidity........88-98 percent valleys and 79-89 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......West 10-15 mph in the evening becoming
downslope/downvalley 5-10 mph.
* Ridge Top............West 10-20 mph decreasing to 5-10 mph after
midnight.
* Mixing Height.......8 kft agl until 1900. Below 500 ft to 1 kft
agl after 2200.
* Transport Winds.....West 15 mph.
* Chance Lightning....40 percent in the Deerlodge/West
Beaverhead...and 30 percent in the East Beaverhead.
* CWR (> 0.10 Inch)...40 percent in the Deerlodge/West
Beaverhead...and 20 percent in the East Beaverhead.
.FRIDAY...
* Sky/Weather.........Partly cloudy. Slight chance of thunderstorms
in the afternoon.
* Max Temperature.....60-65 valleys and 50-55 ridges.
* Min Humidity........23-33 percent valleys and 30-40 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............West 10-15 mph.
* Mixing Height.......1-2 kft agl until 0800. 9 kft agl after 1500.
* Transport Winds.....West 10 mph until 1300, then 15 mph.
* Chance Lightning....Near 0 percent in the Deerlodge/West
Beaverhead...and 15 percent in the East Beaverhead.
* CWR (> 0.10 Inch)...10 percent.
.SATURDAY...Partly cloudy with chance of rain showers and slight chance
of thunderstorms. Chance of precipitation 30 percent. Lows 35-45. Highs
60-70. Min humidities 20-30 percent. North winds 10-15 mph.
.SUNDAY...Mostly clear. Lows 40-50. Highs 65-75. Min humidities
15-25 percent. North winds 10-15 mph.
.MEMORIAL DAY...Mostly clear. Slight chance of rain showers and
thunderstorms. Chance of precipitation 20 percent. Lows 40-50. Highs
70-80. Southeast winds 10-15 mph.
.TUESDAY...Partly cloudy with chance of rain showers and slight chance
of thunderstorms. Chance of precipitation 30 percent. Lows 45-55. Highs
70-80.
.WEDNESDAY...Partly cloudy with slight chance of rain showers and
thunderstorms. Chance of precipitation 20 percent. Lows 45-55. Highs
70-80.
$$