261
FNUS55 KMSO 260823
FWFMSO

Fire Weather Planning Forecast for Wrn Montana and N Cntrl Idaho
National Weather Service Missoula MT
223 AM MDT Sat Apr 26 2025


.DISCUSSION...

Idaho (Zones 102 and 103): Increasing southerly component of winds
today with mid-high level clouds during the morning hours. A brief
clearing before noon followed by a good chance for showers and
thunderstorms after noon and into the evening. Some stronger storms may
put down 35-45 mph gusts, briefly heavy rainfall, and even some small
hail. Colder air starts to filter in midday Sunday. Winds becoming more
north-northwest with another round of scattered showers and
thunderstorms. Snow levels lower to less than 6,000 ft MSL by Monday
morning as shower activity gradually diminishes and shifts eastward.
Another storm system moves into the area by Tuesday morning out of the
northwest reinforcing cool and showery conditions. Then calmer, drier,
and warmer conditions build back in under a ridge of high pressure
starting Wednesday afternoon and lasting through Friday.


Northwest MT (Zones 104 and 105): Increasing southerly component of
winds today with mid-high level clouds increasing through the day. A
small chance for isolated-scattered showers and thunderstorms in the
afternoon and evening. A few isolated stronger showers may put down
25-40 mph gusts, and briefly heavy rainfall. Colder air starts to filter
in overnight Sunday into early Monday with winds becoming more north-
northwest and a better chance for scattered showers and thunderstorms.
Snow levels lower to less than 5,000 ft MSL by Monday morning as shower
activity gradually diminishes and shifts eastward. Another storm system
moves into the area by Tuesday morning out of the northwest reinforcing
cool and showery conditions. Then calmer, drier, and warmer conditions
build back in under a ridge of high pressure starting Wednesday
afternoon and lasting through Friday.


West Central MT (Zones 106, 107 and 108): Increasing southerly
component of winds today with mid-high level clouds during the morning
hours. A brief clearing before noon followed by a good chance for
showers and thunderstorms after noon and into the evening. Some stronger
storms may put down 35-45 mph gusts, briefly heavy rainfall, and even
some small hail. Colder air starts to filter in midday Sunday, winds
becoming more north-northwest with another round of scattered-widespread
showers and thunderstorms. Snow levels lower to less than 6,000 ft MSL
by Monday morning as shower activity shifts eastward. Another storm
system moves into the area by Tuesday morning out of the northwest
reinforcing cool and showery conditions. Then calmer, drier, and warmer
conditions build back in under a ridge of high pressure starting
Wednesday afternoon and lasting through Friday.



Southwest MT (Zones 109, 110 and 111): Increasing southerly component
of winds today with mid-high level clouds in the morning followed by a
brief clearing before noon. Scattered showers and thunderstorms are
possible in the afternoon and evening especially west of I-15. Few
isolated stronger showers may put down 30-45 mph gusts, briefly heavy
rainfall, and even some small hail. Colder air starts to filter in
through the day Sunday with winds becoming more northerly and a better
chance for scattered-widespread showers and thunderstorms. Snow levels
lower to less than 5,000 ft MSL by Monday morning with showers beginning
to shift eastward. Another storm system moves into the area by midday
Tuesday out of the northwest reinforcing cool and showery conditions.
Then calmer, drier, and warmer conditions build back in under a ridge of
high pressure starting Wednesday evening and lasting through the day
Friday.

IDZ102-103-270830-
Palouse/Hells Canyon-Clearwater/Nez Perce-
123 AM PDT Sat Apr 26 2025

.TODAY...
* Sky/Weather.........Mostly cloudy. Rain likely. Slight 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 variable less than 7 mph.
*     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....25 percent.
* CWR (> 0.10 Inch)...10 percent in the Palouse/Hells Canyon...and
  30 percent in the Clearwater/Nez Perce.

.TONIGHT...
* Sky/Weather.........Partly cloudy. Chance of rain showers and
  slight chance of thunderstorms.
* Min Temperature.....38-48.
* Max Humidity........62-72 percent.
* 20-Foot Winds.......
*     Lower Elevation......Variable less than 5 mph in the evening
      becoming downslope/downvalley 1-3 mph.
*     Ridge Top............Northwest 5-10 mph.
* Mixing Height.......5 kft agl until 1900. Below 500 ft to 1 kft
  agl after 2000.
* Transport Winds.....Northwest 10 mph until 2200, then variable
  less than 10 mph.
* Chance Lightning....15 percent in the Palouse/Hells Canyon...and
  20 percent in the Clearwater/Nez Perce.
* CWR (> 0.10 Inch)...0 percent.

.SUNDAY...
* Sky/Weather.........Partly cloudy. Chance of rain. Slight chance
  of thunderstorms in the afternoon. Snow level 7500 feet.
* Max Temperature.....65-75 valleys and 50-60 ridges.
* Min Humidity........39-49 percent valleys and 50-60 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Calm to becoming northwest 10-15 mph in the
      afternoon.
*     Ridge Top............North 5-15 mph.
* Mixing Height.......1-2 kft agl until 1000. 5 kft agl after 1200.
* Transport Winds.....North 10 mph until 1500, then northwest 15
  mph.
* Chance Lightning....20 percent in the Palouse/Hells Canyon...and
  25 percent in the Clearwater/Nez Perce.
* CWR (> 0.10 Inch)...10 percent in the Palouse/Hells Canyon...and
  40 percent in the Clearwater/Nez Perce.

.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. Min humidities 40-50 percent. Southwest winds
10-15 mph.
.WEDNESDAY...Partly cloudy with chance of rain. Chance of rain
30 percent. Lows 40-50. Highs 60-70. West winds 5-10 mph.
.THURSDAY...Mostly clear. Lows 40-50. Highs 70-80.
.FRIDAY...Mostly clear. Slight chance of rain. Chance of rain
20 percent. Lows 45-55. Highs 70-80.

$$

MTZ104-105-270830-
Kootenai-Flathead/Glacier Park-
223 AM MDT Sat Apr 26 2025

.TODAY...
* Sky/Weather.........Partly cloudy. Snow level 7000 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 variable less than 7 mph.
*     Ridge Top............Southeast 5-15 mph becoming southwest 5-10
      mph in the afternoon.
* Mixing Height.......1-2 kft agl until 1000. 9 kft agl after 1400.
* Transport Winds.....Variable less than 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.

.TONIGHT...
* Sky/Weather.........Partly cloudy. Slight chance of rain. Snow
  level 7500 feet.
* Min Temperature.....35-45.
* Max Humidity........70-80 percent valleys and 63-73 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Downslope/downvalley 1-3 mph.
*     Ridge Top............West 5-10 mph.
* Mixing Height.......7 kft agl until 1900. Below 500 ft to 1 kft
  agl after 2000.
* Transport Winds.....Southwest 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.

.SUNDAY...
* Sky/Weather.........Partly cloudy. Chance of rain in the morning.
  Slight chance of thunderstorms in the afternoon. Snow level 7000
  feet.
* Max Temperature.....63-73 valleys and 48-58 ridges.
* Min Humidity........29-39 percent valleys and 51-61 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......North 10-15 mph.
*     Ridge Top............North 10-15 mph.
* Mixing Height.......2 kft agl until 1000. 6 kft agl after 1400.
* Transport Winds.....Variable less than 10 mph until 0800, then
  northeast 10 mph.
* Chance Lightning....20 percent in the Kootenai...and near 0
  percent in the Flathead/Glacier Park.
* CWR (> 0.10 Inch)...30 percent in the Kootenai...and 10 percent
  in the Flathead/Glacier Park.

.MONDAY...Partly cloudy with chance of rain and snow. Chance of
precipitation 40 percent. Lows 35-45. Highs 55-65. Min humidities
30-40 percent. Northeast winds 10-15 mph.
.TUESDAY...Mostly cloudy with rain likely. Chance of rain 60 percent.
Lows 40-50. Highs 50-60. Min humidities 40-50 percent. 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. Southwest winds
10-20 mph.
.THURSDAY...Mostly clear. Lows 35-45. Highs 60-70.
.FRIDAY...Mostly clear. Lows 40-50. Highs 65-75.

$$

MTZ106-108-270830-
West Lolo-East Lolo-
223 AM MDT Sat Apr 26 2025

.TODAY...
* Sky/Weather.........Partly cloudy. Slight chance of rain in the
  morning. 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 variable less than 7 mph.
*     Ridge Top............South 5-15 mph becoming west in the
      afternoon.
* Mixing Height.......1-2 kft agl until 1000, then 3 kft agl until
  1100, then 4 kft agl until 1200, then 6 kft agl until 1300, then
  8 kft agl until 1700, then 7 kft agl.
* Transport Winds.....Variable less than 10 mph until 1100. West 10
  mph after 1400.
* Chance Lightning....20 percent.
* CWR (> 0.10 Inch)...10 percent.

.TONIGHT...
* Sky/Weather.........Partly cloudy. Chance of rain.
* Min Temperature.....35-45.
* Max Humidity........69-79 percent.
* 20-Foot Winds.......
*     Lower Elevation......West 5-10 mph.
*     Ridge Top............West 5-10 mph.
* Mixing Height.......5 kft agl until 1900. Below 500 ft to 1 kft
  agl after 2000.
* Transport Winds.....West 10 mph.
* Chance Lightning....15 percent in the West Lolo...and near 0
  percent in the East Lolo.
* CWR (> 0.10 Inch)...10 percent.

.SUNDAY...
* Sky/Weather.........Partly cloudy. Chance of rain in the morning.
  Slight chance of thunderstorms in the afternoon. Snow level 7500
  feet.
* Max Temperature.....60-70 valleys and 53-63 ridges.
* Min Humidity........34-44 percent valleys and 45-55 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Calm to variable less than 7 mph.
*     Ridge Top............North 10-15 mph.
* Mixing Height.......1-2 kft agl until 1000, then 3 kft agl until
  1100, then 4 kft agl until 1200, then 6 kft agl until 1700, then
  5 kft agl.
* Transport Winds.....Variable less than 10 mph until 1100, then
  north 10 mph.
* Chance Lightning....20 percent.
* CWR (> 0.10 Inch)...30 percent.

.MONDAY...Mostly cloudy with chance of rain showers and slight chance
of thunderstorms. Chance of precipitation 40 percent. Lows 40-50. Highs
55-65. Min humidities 30-40 percent. North winds 10-15 mph.
.TUESDAY...Mostly cloudy with rain likely. Chance of rain 60 percent.
Lows 40-50. Highs 50-60. Min humidities 40-50 percent. Southwest winds
10-20 mph.
.WEDNESDAY...Partly cloudy with chance of rain. Chance of rain
30 percent. Lows 40-50. Highs 55-65. West winds 10-20 mph.
.THURSDAY...Mostly clear. Lows 35-45. Highs 65-75.
.FRIDAY...Mostly clear. Lows 40-50. Highs 70-80.

$$

MTZ107-270830-
Flathead Reservation-
223 AM MDT Sat Apr 26 2025

.TODAY...
* Sky/Weather.........Partly cloudy. Snow level 7500 feet.
* 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............South 5-15 mph becoming west in the
      afternoon.
* Mixing Height.......1-2 kft agl until 1000. 8 kft agl after 1400.
* Transport Winds.....Variable less than 10 mph until 1100. West 10
  mph after 1700.
* Chance Lightning....Near 0 percent in areas west of Highway
  93...and 15 percent in the Mission Mtns and areas east of Highway
  93.
* CWR (> 0.10 Inch)...0 percent.

.TONIGHT...
* Sky/Weather.........Partly cloudy. Slight chance of rain.
* Min Temperature.....45-50 valleys and 35-40 ridges.
* Max Humidity........64-74 percent.
* 20-Foot Winds.......
*     Lower Elevation......Variable less than 5 mph in the evening
      becoming downslope/downvalley 1-3 mph.
*     Ridge Top............West 5-15 mph.
* Mixing Height.......6 kft agl until 1900. Below 500 ft to 1 kft
  agl after 2000.
* Transport Winds.....West 10 mph until 2100, then southwest 10
  mph.
* Chance Lightning....15 percent in areas west of Highway 93...and
  near 0 percent in the Mission Mtns and areas east of Highway 93.
* CWR (> 0.10 Inch)...10 percent.

.SUNDAY...
* Sky/Weather.........Partly cloudy. Slight chance of rain in the
  morning. Slight chance of thunderstorms in the afternoon. Snow
  level 7500 feet.
* Max Temperature.....65-70 valleys and 45-50 ridges.
* Min Humidity........28-38 percent valleys and 44-54 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Calm to becoming upslope/upvalley 4-8 mph in
      the afternoon.
*     Ridge Top............North 5-15 mph.
* Mixing Height.......1-2 kft agl until 1000. 6 kft agl after 1300.
* Transport Winds.....Variable less than 10 mph until 0900, then
  north 10 mph.
* Chance Lightning....20 percent in areas west of Highway 93...and
  15 percent in the Mission Mtns and areas east of Highway 93.
* 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.

.MONDAY...Partly cloudy with chance of rain. Chance of rain 30 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. Min humidities 35-45 percent. Southwest winds
10-20 mph.
.WEDNESDAY...Partly cloudy with slight chance of rain. Chance of rain
20 percent. Lows 40-50. Highs 60-70. Southwest winds 10-20 mph.
.THURSDAY...Mostly clear. Lows 40-50. Highs 70-80.
.FRIDAY...Mostly clear. Lows 45-55. Highs 75-85.

$$

MTZ109-270830-
Bitterroot-
223 AM MDT Sat Apr 26 2025

.TODAY...
* Sky/Weather.........Partly cloudy. Chance of snow and slight
  chance of rain in the morning, then rain showers likely and
  slight 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............Southwest 5-10 mph.
* Mixing Height.......2 kft agl until 1000, then 4 kft agl until
  1100, then 5 kft agl until 1200, then 7 kft agl until 1300, then
  8 kft agl until 1600, then 7 kft agl until 1700, then 6 kft agl.
* Transport Winds.....South 10 mph until 1100, then southwest 10
  mph.
* Chance Lightning....25 percent in the Darby, Sula, and West Fork
  Districts...and 20 percent in areas north of Hamilton.
* CWR (> 0.10 Inch)...30 percent.

.TONIGHT...
* Sky/Weather.........Mostly cloudy. Chance of rain.
* Min Temperature.....35-45.
* Max Humidity........73-83 percent.
* 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.......4 kft agl until 1900. 1-2 kft agl after 2100.
* Transport Winds.....West 10 mph until 0400, then variable less
  than 10 mph.
* Chance Lightning....15 percent.
* CWR (> 0.10 Inch)...20 percent in the Darby, Sula, and West Fork
  Districts...and 0 percent in areas north of Hamilton.

.SUNDAY...
* Sky/Weather.........Mostly cloudy. Chance of rain and snow in the
  morning, then rain showers likely and chance of thunderstorms in
  the afternoon.
* Max Temperature.....65-70 valleys and 50-55 ridges.
* Min Humidity........36-46 percent valleys and 53-63 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......North 5-15 mph.
*     Ridge Top............North 5-15 mph.
* Mixing Height.......1-2 kft agl until 1000. 6 kft agl after 1300.
* Transport Winds.....North 10 mph until 1600, then 15 mph.
* Chance Lightning....30 percent in the Darby, Sula, and West Fork
  Districts...and 20 percent in areas north of Hamilton.
* CWR (> 0.10 Inch)...50 percent.

.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 40 percent. Lows 35-45. Highs 50-60. Min humidities
35-45 percent. West winds 10-20 mph.
.WEDNESDAY...Partly cloudy with chance of rain and slight chance of
snow. Chance of precipitation 30 percent. Lows 35-45. Highs 55-65. West
winds 10-20 mph.
.THURSDAY...Mostly clear. Lows 35-45. Highs 65-75.
.FRIDAY...Mostly clear. Lows 40-50. Highs 70-80.

$$

MTZ110-111-270830-
Deerlodge/West Beaverhead-East Beaverhead-
223 AM MDT Sat Apr 26 2025

.TODAY...
* Sky/Weather.........Mostly cloudy. and slight chance of rain
  showers.
* Max Temperature.....60-70 valleys and 50-60 ridges.
* Min Humidity........18-28 percent valleys and 26-36 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......South 10-20 mph.
*     Ridge Top............South 5-15 mph increasing to southwest 15-25
      mph in the afternoon.
* Mixing Height.......2 kft agl until 1000. 10 kft agl after 1500.
* Transport Winds.....South 10 mph until 1100, then southwest 15
  mph.
* Chance Lightning....20 percent in the Deerlodge/West
  Beaverhead...and near 0 percent in the East Beaverhead.
* CWR (> 0.10 Inch)...30 percent in the Deerlodge/West
  Beaverhead...and 10 percent in the East Beaverhead.

.TONIGHT...
* Sky/Weather.........Mostly cloudy. Chance of rain showers.
* Min Temperature.....30-40.
* Max Humidity........73-83 percent valleys and 65-75 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......West 10-20 mph decreasing to variable less
      than 5 mph after midnight.
*     Ridge Top............Southwest 10-20 mph decreasing to 5-10 mph
      after midnight.
* Mixing Height.......9 kft agl until 1900. Below 500 ft to 1 kft
  agl after 2000.
* Transport Winds.....Southwest 15 mph until 2300, then variable
  less than 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...10 percent.

.SUNDAY...
* Sky/Weather.........Mostly cloudy. Rain showers. Slight chance of
  thunderstorms in the afternoon.
* Max Temperature.....55-65 valleys and 45-50 ridges.
* Min Humidity........39-49 percent.
* 20-Foot Winds.......
*     Lower Elevation......North 5-15 mph.
*     Ridge Top............North 5-15 mph.
* Mixing Height.......1-2 kft agl until 1000, then 3 kft agl until
  1100, then 4 kft agl until 1200, then 6 kft agl until 1700, then
  4 kft agl.
* Transport Winds.....Northeast 10 mph until 1600, then 15 mph.
* Chance Lightning....30 percent in the Deerlodge/West
  Beaverhead...and 25 percent in the East Beaverhead.
* CWR (> 0.10 Inch)...70 percent in the Deerlodge/West
  Beaverhead...and 50 percent in the East Beaverhead.

.MONDAY...Rain showers, snow showers and slight chance of
thunderstorms. Chance of precipitation near 100 percent. Lows 30-40.
Highs 50-60. Min humidities 35-45 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. Min humidities 30-40 percent.
Southwest winds 10-20 mph.
.WEDNESDAY...Partly cloudy with chance of rain showers and slight
chance of snow showers. Chance of precipitation 30 percent. Lows 35-45.
Highs 55-65. West winds 10-20 mph.
.THURSDAY...Mostly clear. Lows 35-45. Highs 60-70.
.FRIDAY...Mostly clear. Lows 40-50. Highs 65-75.

$$