156
FNUS55 KMSO 170840
FWFMSO

Fire Weather Planning Forecast for Wrn Montana and N Cntrl Idaho
National Weather Service Missoula MT
240 AM MDT Thu Apr 17 2025


.DISCUSSION...

Idaho (Zones 102 and 103): Cooler temperatures and showery conditions
can be expected today in the wake of a cold front that moved through the
region Wednesday. There is between a 50 and 70 percent probability for
widespread gusts around 20 mph out of the north this afternoon, between
1PM and 7PM. A slight warming and drying trend is expected Friday
through early Saturday, before another Pacific cold front arrives late
Saturday. An active pattern with mountain snowfall and periods of a
rain/snow mix in the valleys is expected through Wednesday next week.
Another warming and drying period is will round out the week next week.

Northwest MT (Zones 104 and 105): Cooler temperatures and showery conditions
can be expected today in the wake of a cold front that moved through the
region Wednesday. There is between a 50 and 70 percent probability for
widespread gusts around 20 mph out of the north this afternoon, between
1PM and 7PM. A slight warming and drying trend is expected Friday
through early Saturday, before another Pacific cold front arrives late
Saturday. An active pattern with mountain snowfall and periods of a
rain/snow mix in the valleys is expected through Wednesday next week.
Another warming and drying period is will round out the week next week.

West Central MT (Zones 106, 107 and 108): Cooler temperatures and showery
conditions can be expected today in the wake of a cold front that moved
through the region Wednesday. There is between a 50 and 70 percent
probability for widespread gusts around 20 mph out of the north this
afternoon, between 1PM and 7PM. A slight warming and drying trend is
expected Friday through early Saturday, before another Pacific cold
front arrives late Saturday. An active pattern with mountain snowfall
and periods of a rain/snow mix in the valleys is expected through
Wednesday next week. Another warming and drying period is will round out
the week next week.

Southwest MT (Zones 109, 110 and 111):Light to moderate snowfall will
continue through mid-morning, as a cold front slowly moves through the
area. Anywhere from an additional 1 to 3 inches of snow is expected. Cooler
temperatures and showery conditions can be expected today in the wake
of a cold front that moved through the region Wednesday. There is
between a 50 and 70 percent probability for widespread gusts around 20
mph out of the north this afternoon, between 1PM and 7PM. A slight
warming and drying trend is expected Friday through early Saturday,
before another Pacific cold front arrives late Saturday. An active
pattern with mountain snowfall and periods of a rain/snow mix in the
valleys is expected through Wednesday next week. Another warming and
drying period is will round out the week next week.

View Weather Briefing videos on our YouTube channel
at https://www.youtube.com/NWSMissoula

IDZ102-103-180845-
Palouse/Hells Canyon-Clearwater/Nez Perce-
140 AM PDT Thu Apr 17 2025

.TODAY...
* Sky/Weather.........Partly cloudy.
* Max Temperature.....50-60 valleys and 35-45 ridges.
* Min Humidity........28-38 percent valleys and 35-45 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......North 15-25 mph.
*     Ridge Top............North 20-30 mph.
* Mixing Height.......1-2 kft agl until 0800, then 4 kft agl until
  1000, then 5 kft agl until 1100, then 6 kft agl until 1200, then
  8 kft agl until 1300, then 9 kft agl until 1400, then 10 kft agl
  until 1700, then 9 kft agl.
* Transport Winds.....Northeast 20 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.

.TONIGHT...
* Sky/Weather.........Partly cloudy.
* Min Temperature.....20-30.
* Max Humidity........50-60 percent.
* 20-Foot Winds.......
*     Lower Elevation......Northeast 15-25 mph in the evening becoming
      downslope/downvalley 5-10 mph.
*     Ridge Top............Northeast 20-30 mph decreasing to 5-15 mph
      after midnight.
* Mixing Height.......7 kft agl until 2000. Below 500 ft to 1 kft
  agl after 2100.
* Transport Winds.....Northeast 20 mph until 2200, then east 10
  mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.

.FRIDAY...
* Sky/Weather.........Mostly sunny.
* Max Temperature.....55-65 valleys and 40-50 ridges.
* Min Humidity........22-32 percent.
* 20-Foot Winds.......
*     Lower Elevation......Calm to becoming upslope/upvalley 4-8 mph in
      the afternoon.
*     Ridge Top............Northeast 5-15 mph becoming north in the
      afternoon.
* Mixing Height.......Below 500 ft to 1 kft agl until 0900. 7 kft
  agl after 1400.
* Transport Winds.....Northeast 10 mph until 1400, then north 10
  mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.

.SATURDAY...Partly cloudy. Lows 30-40. Highs 55-65. Min humidities
35-45 percent. Southwest winds 10-15 mph.
.SUNDAY...Partly cloudy with chance of rain and snow. Chance of
precipitation 30 percent. Lows 35-45. Highs 50-60. Min humidities
35-45 percent. West winds 10-15 mph.
.MONDAY...Mostly cloudy with chance of rain showers and snow. Chance of
precipitation 40 percent. Lows 35-45. Highs 45-55. West winds
10-15 mph.
.TUESDAY...Partly cloudy. Lows 30-40. Highs 55-65.
.WEDNESDAY...Partly cloudy. Lows 35-45. Highs 55-65.

$$

MTZ104-105-180845-
Kootenai-Flathead/Glacier Park-
240 AM MDT Thu Apr 17 2025

.TODAY...
* Sky/Weather.........Partly cloudy.
* Max Temperature.....45-55 valleys and 33-43 ridges.
* Min Humidity........25-35 percent valleys and 43-53 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Northeast 15-25 mph.
*     Ridge Top............Northeast 20-30 mph.
* Mixing Height.......1-2 kft agl until 0900, then 3 kft agl until
  1000, then 5 kft agl until 1100, then 7 kft agl until 1200, then
  9 kft agl until 1500, then 8 kft agl.
* Transport Winds.....North 15 mph until 1200, then 20 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...10 percent.

.TONIGHT...
* Sky/Weather.........Partly cloudy.
* Min Temperature.....18-28.
* Max Humidity........58-68 percent.
* 20-Foot Winds.......
*     Lower Elevation......Northeast 5-10 mph in the evening becoming
      downslope/downvalley 2-5 mph.
*     Ridge Top............North 20-30 mph decreasing to 5-15 mph after
      midnight.
* Mixing Height.......7 kft agl until 1900. Below 500 ft to 1 kft
  agl after 2000.
* Transport Winds.....Northeast 15 mph until 2400, then variable
  less than 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.

.FRIDAY...
* Sky/Weather.........Mostly sunny.
* Max Temperature.....55-65 valleys and 40-50 ridges.
* Min Humidity........22-32 percent valleys and 37-47 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Calm to becoming upslope/upvalley 4-8 mph in
      the afternoon.
*     Ridge Top............West 5-15 mph.
* Mixing Height.......2 kft agl until 1000. 6 kft agl after 1300.
* Transport Winds.....Northwest 10 mph until 1500, then west 15
  mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.

.SATURDAY...Partly cloudy with slight chance of rain. Chance of rain
20 percent. Lows 30-40. Highs 50-60. Min humidities 45-55 percent.
Southwest winds 10-15 mph.
.SUNDAY...Mostly cloudy with chance of rain and snow. Chance of
precipitation 40 percent. Lows 35-45. Highs 45-55. Min humidities
40-50 percent. Southwest winds 10-20 mph.
.MONDAY...Mostly cloudy with chance of snow and rain. Chance of
precipitation 50 percent. Lows 30-40. Highs 40-50. Southwest winds
10-20 mph.
.TUESDAY...Partly cloudy with chance of snow and slight chance of rain.
Chance of precipitation 30 percent. Lows 30-40. Highs 45-55.
.WEDNESDAY...Partly cloudy with slight chance of rain. Chance of rain
20 percent. Lows 30-40. Highs 50-60.

$$

MTZ106-108-180845-
West Lolo-East Lolo-
240 AM MDT Thu Apr 17 2025

.TODAY...
* Sky/Weather.........Partly cloudy. Chance of snow.
* Max Temperature.....45-55 valleys and 35-45 ridges.
* Min Humidity........27-37 percent valleys and 35-45 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Northeast 15-25 mph.
*     Ridge Top............Northeast 20-30 mph.
* Mixing Height.......3 kft agl until 0900, then 4 kft agl until
  1000, then 5 kft agl until 1100, then 7 kft agl until 1200, then
  8 kft agl until 1300, then 10 kft agl until 1600, then 8 kft agl.
* Transport Winds.....Northeast 20 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...10 percent.

.TONIGHT...
* Sky/Weather.........Partly cloudy.
* Min Temperature.....20-30.
* Max Humidity........59-69 percent.
* 20-Foot Winds.......
*     Lower Elevation......Northeast 10-15 mph in the evening becoming
      downslope/downvalley 5-10 mph.
*     Ridge Top............Northeast 20-30 mph decreasing to 5-15 mph
      after midnight.
* Mixing Height.......7 kft agl until 1900. Below 500 ft to 1 kft
  agl after 2000.
* Transport Winds.....Northeast 20 mph until 2200, then 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.

.FRIDAY...
* Sky/Weather.........Mostly sunny.
* Max Temperature.....50-60 valleys and 43-53 ridges.
* Min Humidity........21-31 percent valleys and 27-37 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Calm to becoming upslope/upvalley 4-8 mph in
      the afternoon.
*     Ridge Top............Northwest 5-15 mph.
* Mixing Height.......1-2 kft agl until 0900. 7 kft agl after 1300.
* Transport Winds.....North 10 mph until 1400, then northwest 10
  mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.

.SATURDAY...Partly cloudy. Lows 30-40. Highs 50-60. Min humidities
35-45 percent. Southwest winds 10-15 mph.
.SUNDAY...Mostly cloudy with chance of rain and snow. Chance of
precipitation 30 percent. Lows 35-45. Highs 45-55. Min humidities
35-45 percent. West winds 10-20 mph.
.MONDAY...Mostly cloudy with chance of snow and rain. Chance of
precipitation 30 percent. Lows 30-40. Highs 45-55. West winds
10-20 mph.
.TUESDAY...Partly cloudy with slight chance of snow. Chance of snow
20 percent. Lows 25-35. Highs 50-60.
.WEDNESDAY...Partly cloudy. Lows 30-40. Highs 50-60.

$$

MTZ107-180845-
Flathead Reservation-
240 AM MDT Thu Apr 17 2025

.TODAY...
* Sky/Weather.........Partly cloudy.
* Max Temperature.....50-55 valleys and 30-35 ridges.
* Min Humidity........23-33 percent valleys and 37-47 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......North 10-20 mph.
*     Ridge Top............North 25-35 mph.
* Mixing Height.......1-2 kft agl until 0900, then 3 kft agl until
  1000, then 5 kft agl until 1100, then 7 kft agl until 1200, then
  10 kft agl until 1500, then 8 kft agl.
* Transport Winds.....North 15 mph until 1200, then 20 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...10 percent.

.TONIGHT...
* Sky/Weather.........Partly cloudy then becoming clear.
* Min Temperature.....25-30 valleys and 15-20 ridges.
* Max Humidity........57-67 percent.
* 20-Foot Winds.......
*     Lower Elevation......North 5-15 mph in the evening becoming
      downslope/downvalley 2-5 mph.
*     Ridge Top............Northeast 25-35 mph decreasing to 5-15 mph
      after midnight.
* Mixing Height.......8 kft agl until 1900. Below 500 ft to 1 kft
  agl after 2000.
* Transport Winds.....Northeast 20 mph until 2000. Variable less
  than 10 mph after 0100.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.

.FRIDAY...
* Sky/Weather.........Mostly sunny.
* Max Temperature.....55-60 valleys and 35-40 ridges.
* Min Humidity........19-29 percent valleys and 32-42 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Calm to becoming upslope/upvalley 4-8 mph in
      the afternoon.
*     Ridge Top............Northwest 5-15 mph.
* Mixing Height.......1-2 kft agl until 0900. 7 kft agl after 1300.
* Transport Winds.....Variable less than 10 mph until 0800, then
  northwest 10 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.

.SATURDAY...Partly cloudy. Lows 30-40. Highs 55-65. Min humidities
35-45 percent. Southwest winds 10-15 mph.
.SUNDAY...Mostly cloudy with chance of rain and snow. Chance of
precipitation 30 percent. Lows 35-45. Highs 50-60. Min humidities
30-40 percent. Southwest winds 10-20 mph.
.MONDAY...Mostly cloudy with rain showers likely with possible snow and
thunderstorms. Chance of precipitation 60 percent. Lows 35-45. Highs
50-60. Southwest winds 10-20 mph.
.TUESDAY...Partly cloudy. Lows 30-40. Highs 50-60.
.WEDNESDAY...Partly cloudy. Lows 35-45. Highs 55-65.

$$

MTZ109-180845-
Bitterroot-
240 AM MDT Thu Apr 17 2025

.TODAY...
* Sky/Weather.........Partly cloudy. Chance of snow.
* Max Temperature.....45-50 valleys and 30-35 ridges.
* Min Humidity........26-36 percent valleys and 40-50 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Northeast 20-30 mph.
*     Ridge Top............Northeast 25-35 mph.
* Mixing Height.......3 kft agl until 0900, then 5 kft agl until
  1100, then 7 kft agl until 1200, then 9 kft agl until 1700, then
  7 kft agl.
* Transport Winds.....Northeast 20 mph until 1200, then north 25
  mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...20 percent.

.TONIGHT...
* Sky/Weather.........Partly cloudy.
* Min Temperature.....15-25.
* Max Humidity........57-67 percent.
* 20-Foot Winds.......
*     Lower Elevation......North 10-20 mph in the evening becoming
      downslope/downvalley 5-10 mph.
*     Ridge Top............Northeast 25-35 mph decreasing to 10-15 mph
      after midnight.
* Mixing Height.......7 kft agl until 1900. 1-2 kft agl after 2000.
* Transport Winds.....North 20 mph until 2200, then northeast 10
  mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.

.FRIDAY...
* Sky/Weather.........Mostly sunny.
* Max Temperature.....50-55 valleys and 40-45 ridges.
* Min Humidity........18-28 percent valleys and 29-39 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Calm to variable less than 7 mph.
*     Ridge Top............North 5-15 mph.
* Mixing Height.......2 kft agl until 0900. 7 kft agl after 1400.
* Transport Winds.....Northeast 10 mph until 1700, then north 10
  mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.

.SATURDAY...Mostly clear. Lows 25-35. Highs 50-60. Min humidities
30-40 percent. Southwest winds 10-15 mph.
.SUNDAY...Mostly cloudy with chance of rain and snow. Chance of
precipitation 30 percent. Lows 30-40. Highs 45-55. Min humidities
35-45 percent. West winds 10-20 mph.
.MONDAY...Mostly cloudy with chance of snow and rain. Chance of
precipitation 50 percent. Lows 30-40. Highs 40-50. West winds
10-20 mph.
.TUESDAY...Partly cloudy. Lows 25-35. Highs 50-60.
.WEDNESDAY...Partly cloudy. Lows 30-40. Highs 50-60.

$$

MTZ110-111-180845-
Deerlodge/West Beaverhead-East Beaverhead-
240 AM MDT Thu Apr 17 2025

.TODAY...
* Sky/Weather.........Mostly cloudy. Patchy blowing snow. Snow
  showers likely.
* Max Temperature.....35-40 valleys and 25-35 ridges.
* Min Humidity........33-43 percent valleys and 46-56 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......North 25-40 mph.
*     Ridge Top............North 25-40 mph.
* Mixing Height.......3 kft agl until 0900. 7 kft agl after 1300.
* Transport Winds.....Northeast 30 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...10 percent in the Deerlodge/West
  Beaverhead...and 30 percent in the East Beaverhead.

.TONIGHT...
* Sky/Weather.........Partly cloudy. Slight chance of snow showers.
* Min Temperature.....10-20.
* Max Humidity........67-77 percent.
* 20-Foot Winds.......
*     Lower Elevation......North 25-35 mph decreasing to 10-15 mph
      after midnight.
*     Ridge Top............Northeast 25-35 mph.
* Mixing Height.......6 kft agl until 1900. Below 500 ft to 1 kft
  agl after 2000.
* Transport Winds.....Northeast 25 mph until 2200, then 15 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...10 percent.

.FRIDAY...
* Sky/Weather.........Partly cloudy.
* Max Temperature.....40-50 valleys and 30-40 ridges.
* Min Humidity........19-29 percent valleys and 29-39 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......North 10-20 mph.
*     Ridge Top............North 10-20 mph.
* Mixing Height.......1-2 kft agl until 0800. 7 kft agl after 1400.
* Transport Winds.....North 15 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.

.SATURDAY...Mostly clear. Lows 20-30. Highs 50-60. Min humidities
20-30 percent. Southwest winds 10-15 mph.
.SUNDAY...Partly cloudy with chance of rain showers and snow. Chance of
precipitation 30 percent. Lows 30-40. Highs 45-55. Min humidities
25-35 percent. Southwest winds 10-15 mph.
.MONDAY...Partly cloudy with chance of snow showers and rain showers.
Chance of precipitation 30 percent. Lows 25-35. Highs 45-55. West winds
15-25 mph.
.TUESDAY...Partly cloudy. Lows 25-35. Highs 45-55.
.WEDNESDAY...Partly cloudy. Lows 30-40. Highs 50-60.

$$