Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Missoula, MT
Issued by NWS Missoula, MT
657
FNUS55 KMSO 210952
FWFMSO
Fire Weather Planning Forecast for Wrn Montana and N Cntrl Idaho
National Weather Service Missoula MT
352 AM MDT Tue May 21 2024
.DISCUSSION...
Idaho (Zones 102 and 103): Isolated showers will continue to move
through the region today as temperatures warm to seasonal averages. Then
Wednesday into Thursday a strong low pressure system will bring
widespread precipitation and cooler temperatures. A second low pressure
system is now expected for Saturday. A ridge of high pressure appears to
build over the region the first part of next week causing a warming and
drying trend.
Northwest MT (Zones 104 and 105): Isolated showers will continue to move
through the region today as temperatures warm to seasonal averages. Then
Wednesday into Thursday a strong low pressure system will bring
widespread precipitation and cooler temperatures. A second low pressure
system is now expected for Saturday. A ridge of high pressure appears to
build over the region the first part of next week causing a warming and
drying trend.
West Central MT (Zones 106, 107 and 108): Isolated showers will continue to move
through the region today as temperatures warm to seasonal averages. Then
Wednesday into Thursday a strong low pressure system will bring
widespread precipitation and cooler temperatures. A second low pressure
system is now expected for Saturday. A ridge of high pressure appears to
build over the region the first part of next week causing a warming and
drying trend.
Southwest MT (Zones 109, 110 and 111): Isolated showers will continue to move
through the region today as temperatures warm to seasonal averages. Then
Wednesday into Thursday a strong low pressure system will bring
widespread precipitation and cooler temperatures. A second low pressure
system is now expected for Saturday. A ridge of high pressure appears to
build over the region the first part of next week causing a warming and
drying trend.
IDZ102-103-221000-
Palouse/Hells Canyon-Clearwater/Nez Perce-
252 AM PDT Tue May 21 2024
.TODAY...
* Sky/Weather.........Partly cloudy. Widespread frost in the
morning. Snow level 6500 feet.
* Max Temperature.....65-75 valleys and 50-60 ridges.
* Min Humidity........26-36 percent valleys and 33-43 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......West 5-15 mph.
* Ridge Top............West 5-15 mph.
* Haines Index........2 very low.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.
.TONIGHT...
* Sky/Weather.........Mostly cloudy. Rain. Snow level 7000 feet.
* Min Temperature.....40-50 valleys and 35-40 ridges.
* Max Humidity........83-93 percent.
* 20-Foot Winds.......
* Lower Elevation......West 5-10 mph.
* Ridge Top............West 5-10 mph.
* LAL.................1.
* CWR (> 0.10 Inch)...90 percent in the Palouse/Hells Canyon...and
70 percent in the Clearwater/Nez Perce.
.WEDNESDAY...
* Sky/Weather.........Snow in the morning. Rain showers. Slight
chance of thunderstorms in the afternoon. Snow level 5500 feet.
* Max Temperature.....50-60 valleys and 40-45 ridges.
* Min Humidity........51-61 percent valleys and 61-71 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......West 10-15 mph.
* Ridge Top............West 10-15 mph.
* Haines Index........3 very low.
* LAL.................2.
* CWR (> 0.10 Inch)...80 percent in the Palouse/Hells Canyon...and
100 percent in the Clearwater/Nez Perce.
.THURSDAY...Cloudy with rain showers, snow and slight chance of
thunderstorms. Lows 35-45. Highs 50-60. Min humidities 45-55 percent.
West winds 5-10 mph.
.FRIDAY...Partly cloudy with chance of rain showers and slight chance
of thunderstorms. Lows 35-45. Highs 60-70. Min humidities
35-45 percent. South winds 5-10 mph.
.SATURDAY...Cooler. Mostly cloudy with rain showers likely and slight
chance of thunderstorms. Lows 40-50. Highs 50-60. Southwest winds
10-15 mph.
.SUNDAY...Partly cloudy. Chance of rain and snow. Lows 35-45. Highs
55-65.
.MEMORIAL DAY...Partly cloudy. Slight chance of rain. Lows 40-50. Highs
65-75.
$$
MTZ104-105-221000-
Kootenai-Flathead/Glacier Park-
352 AM MDT Tue May 21 2024
.TODAY...
* Sky/Weather.........Partly cloudy. Areas of frost in the morning.
Snow level 6500 feet.
* Max Temperature.....60-70 valleys and 45-55 ridges.
* Min Humidity........23-33 percent valleys and 41-51 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Southwest 10-20 mph.
* Ridge Top............Southwest 10-20 mph.
* Haines Index........2 very low.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.
.TONIGHT...
* Sky/Weather.........Mostly cloudy. Rain likely. Chance of snow
after midnight. Snow level 6500 feet.
* Min Temperature.....35-45.
* Max Humidity........97-100 percent valleys and 84-94 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Southwest 5-10 mph becoming variable less
than 5 mph after midnight.
* Ridge Top............Southwest 10-20 mph.
* LAL.................1.
* CWR (> 0.10 Inch)...50 percent in the Kootenai...and 30 percent
in the Flathead/Glacier Park.
.WEDNESDAY...
* Sky/Weather.........Rain and snow in the morning, then rain
showers and slight chance of thunderstorms in the afternoon. Snow
level 6500 feet.
* Max Temperature.....55-60 valleys and 35-45 ridges.
* Min Humidity........53-63 percent valleys and 73-83 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Variable less than 7 mph.
* Ridge Top............Southwest 5-10 mph.
* Haines Index........2 very low.
* LAL.................2.
* CWR (> 0.10 Inch)...90 percent.
.THURSDAY...Mostly cloudy with rain showers with possible snow and
thunderstorms. Lows 35-45. Highs 50-60. Min humidities 35-45 percent.
Northwest winds 10-15 mph.
.FRIDAY...Mostly cloudy with chance of rain showers and slight chance
of thunderstorms. Lows 40-50. Highs 55-65. Min humidities
40-50 percent. Southwest winds 10-15 mph.
.SATURDAY...Mostly cloudy with rain showers likely and slight chance of
thunderstorms. Lows 40-50. Highs 50-60. Southwest winds 10-15 mph.
.SUNDAY...Mostly cloudy. Chance of rain and snow. Lows 35-45. Highs
50-60.
.MEMORIAL DAY...Partly cloudy. Slight chance of rain. Lows 35-45. Highs
60-70.
$$
MTZ106-108-221000-
West Lolo-East Lolo-
352 AM MDT Tue May 21 2024
.TODAY...
* Sky/Weather.........Partly cloudy. Areas of frost in the morning.
Snow level 6500 feet.
* Max Temperature.....55-65 valleys and 48-58 ridges.
* Min Humidity........23-33 percent valleys and 35-45 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......West 5-15 mph.
* Ridge Top............West 10-20 mph.
* Haines Index........2 very low.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.
.TONIGHT...
* Sky/Weather.........Mostly cloudy. Chance of rain. Snow level
7000 feet.
* Min Temperature.....35-45.
* Max Humidity........91-100 percent valleys and 78-88 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Southwest 10-15 mph.
* Ridge Top............West 10-20 mph becoming southwest 5-10 mph
after midnight.
* LAL.................1.
* CWR (> 0.10 Inch)...40 percent in the West Lolo...and 10 percent
in the East Lolo.
.WEDNESDAY...
* Sky/Weather.........Rain and snow in the morning, then rain
showers and slight chance of thunderstorms in the afternoon. Snow
level 6500 feet.
* Max Temperature.....50-60 valleys and 43-53 ridges.
* Min Humidity........53-63 percent valleys and 63-73 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Variable less than 7 mph.
* Ridge Top............Southwest 5-10 mph.
* Haines Index........2 very low.
* LAL.................3.
* CWR (> 0.10 Inch)...80 percent.
.THURSDAY...Cloudy with rain showers, snow and slight chance of
thunderstorms. Lows 35-45. Highs 50-60. Min humidities 40-50 percent.
Northwest winds 10-15 mph.
.FRIDAY...Partly cloudy with chance of rain showers and slight chance
of thunderstorms. Lows 35-45. Highs 55-65. Min humidities
35-45 percent. Southwest winds 10-15 mph.
.SATURDAY...Mostly cloudy with rain showers and slight chance of
thunderstorms. Lows 40-50. Highs 50-60. Southwest winds 10-15 mph.
.SUNDAY...Mostly cloudy. Chance of rain and snow. Lows 35-45. Highs
50-60.
.MEMORIAL DAY...Warmer. Partly cloudy. Slight chance of rain. Lows
35-45. Highs 65-75.
$$
MTZ107-221000-
Flathead Reservation-
352 AM MDT Tue May 21 2024
.TODAY...
* Sky/Weather.........Partly cloudy. Snow level 6500 feet.
* Max Temperature.....65-70 valleys and 45-50 ridges.
* Min Humidity........27-37 percent valleys and 39-49 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Southwest 5-15 mph.
* Ridge Top............Southwest 10-20 mph.
* Haines Index........2 very low.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.
.TONIGHT...
* Sky/Weather.........Mostly cloudy. Rain likely. Snow level 7000
feet.
* Min Temperature.....45-50 valleys and 35-40 ridges.
* Max Humidity........81-91 percent.
* 20-Foot Winds.......
* Lower Elevation......Southwest 5-15 mph becoming variable less
than 5 mph after midnight.
* Ridge Top............West 10-20 mph becoming southwest 5-10 mph
after midnight.
* LAL.................1.
* CWR (> 0.10 Inch)...20 percent in areas west of Highway 93...and
50 percent in the Mission Mtns and areas east of Highway 93.
.WEDNESDAY...
* Sky/Weather.........Rain in the morning, then rain showers and
slight chance of thunderstorms in the afternoon. Snow level 6500
feet.
* Max Temperature.....55-60 valleys and 35-40 ridges.
* Min Humidity........57-67 percent valleys and 72-82 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Variable less than 7 mph.
* Ridge Top............Southwest 5-10 mph.
* Haines Index........2 very low.
* LAL.................2.
* CWR (> 0.10 Inch)...90 percent.
.THURSDAY...Mostly cloudy with rain showers and slight chance of
thunderstorms. Lows 40-50. Highs 55-65. Min humidities 40-50 percent.
Northwest winds 5-15 mph.
.FRIDAY...Partly cloudy with chance of rain showers and slight chance
of thunderstorms. Lows 40-50. Highs 60-70. Min humidities
35-45 percent. Southwest winds 5-10 mph.
.SATURDAY...Cooler. Mostly cloudy with chance of rain. Lows 45-55.
Highs 50-60. Southwest winds 10-15 mph.
.SUNDAY...Mostly cloudy. Chance of rain. Lows 40-50. Highs 55-65.
.MEMORIAL DAY...Partly cloudy. Slight chance of rain. Lows 40-50. Highs
65-75.
$$
MTZ109-221000-
Bitterroot-
352 AM MDT Tue May 21 2024
.TODAY...
* Sky/Weather.........Partly cloudy. Widespread frost in the
morning. Slight chance of snow in the afternoon. Snow level 6500
feet.
* Max Temperature.....60-65 valleys and 45-50 ridges.
* Min Humidity........22-32 percent valleys and 30-40 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......West 5-15 mph.
* Ridge Top............West 5-15 mph.
* Haines Index........2 very low.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.
.TONIGHT...
* Sky/Weather.........Mostly cloudy. Chance of snow after midnight.
Snow level 7000 feet.
* Min Temperature.....33-43.
* Max Humidity........69-79 percent.
* 20-Foot Winds.......
* Lower Elevation......Southwest 5-10 mph becoming variable less
than 5 mph after midnight.
* Ridge Top............Southwest 5-15 mph.
* LAL.................1.
* CWR (> 0.10 Inch)...10 percent.
.WEDNESDAY...
* Sky/Weather.........Rain and snow in the morning, then rain
showers, snow showers and slight chance of thunderstorms in the
afternoon. Snow level 6500 feet.
* Max Temperature.....55-60 valleys and 40-45 ridges.
* Min Humidity........48-58 percent valleys and 57-67 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Variable less than 7 mph.
* Ridge Top............Southwest 5-15 mph.
* Haines Index........2 very low.
* LAL.................3 in the Darby, Sula, and West Fork
Districts...and 2 in areas north of Hamilton.
* CWR (> 0.10 Inch)...100 percent in the Darby, Sula, and West Fork
Districts...and 80 percent in areas north of Hamilton.
.THURSDAY...Cloudy with snow showers, rain and slight chance of
thunderstorms. Lows 30-40. Highs 45-55. Min humidities 40-50 percent.
West winds 5-15 mph.
.FRIDAY...Partly cloudy with slight chance of rain showers and
thunderstorms. Lows 30-40. Highs 50-60. Min humidities 35-45 percent.
Southwest winds 5-10 mph.
.SATURDAY...Mostly cloudy with rain showers with possible snow and
thunderstorms. Lows 35-45. Highs 45-55. Southwest winds 10-15 mph.
.SUNDAY...Mostly cloudy. Chance of rain and snow. Lows 30-40. Highs
50-60.
.MEMORIAL DAY...Partly cloudy. Lows 35-45. Highs 60-70.
$$
MTZ110-111-221000-
Deerlodge/West Beaverhead-East Beaverhead-
352 AM MDT Tue May 21 2024
.TODAY...
* Sky/Weather.........Partly cloudy. Slight chance of thunderstorms
and snow showers in the afternoon. Snow level 6500 feet.
* Max Temperature.....55-60 valleys and 45-50 ridges.
* Min Humidity........23-33 percent.
* 20-Foot Winds.......
* Lower Elevation......West 5-15 mph.
* Ridge Top............West 5-15 mph.
* Haines Index........3 very low.
* LAL.................2.
* CWR (> 0.10 Inch)...10 percent.
.TONIGHT...
* Sky/Weather.........Partly cloudy. Slight chance of rain showers.
Snow level 7000 feet.
* Min Temperature.....30-40.
* Max Humidity........65-75 percent valleys and 59-69 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Southwest 10-15 mph.
* Ridge Top............Southwest 10-15 mph.
* LAL.................1.
* CWR (> 0.10 Inch)...10 percent.
.WEDNESDAY...
* Sky/Weather.........Mostly cloudy. Chance of rain and snow in the
morning, then rain showers, chance of thunderstorms and snow
showers in the afternoon. Snow level 7000 feet.
* Max Temperature.....50-60 valleys and 45-50 ridges.
* Min Humidity........41-51 percent valleys and 49-59 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Southwest 15-25 mph.
* Ridge Top............Southwest 15-25 mph.
* Haines Index........3 very low.
* LAL.................3.
* CWR (> 0.10 Inch)...90 percent in the Deerlodge/West
Beaverhead...and 70 percent in the East Beaverhead.
.THURSDAY...Colder. Cloudy with snow showers, rain showers and chance
of thunderstorms. Lows 30-40. Highs 40-50. Min humidities
40-50 percent. West winds 5-15 mph.
.FRIDAY...Partly cloudy with slight chance of rain showers,
thunderstorms and snow. Lows 25-35. Highs 50-60. Min humidities
30-40 percent. Southwest winds 10-15 mph.
.SATURDAY...Mostly cloudy with rain showers likely with possible snow
and thunderstorms. Lows 35-45. Highs 50-60. Southwest winds 10-20 mph.
.SUNDAY...Mostly cloudy. Chance of rain and snow. Lows 30-40. Highs
50-60.
.MEMORIAL DAY...Partly cloudy. Slight chance of rain. Lows 30-40. Highs
60-70.
$$