Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Missoula, MT
Issued by NWS Missoula, MT
681 FNUS55 KMSO 201016 FWFMSO Fire Weather Planning Forecast for Wrn Montana and N Cntrl Idaho National Weather Service Missoula MT 416 AM MDT Mon May 20 2024 .DISCUSSION... Idaho (Zones 102 and 103): The region will remain under a cool and showery weather pattern for the next several days. A significant low pressure system is expected Wednesday into Thursday bringing a decent amount of precipitation to the region. Snow levels drop to around 5000 feet by Thursday morning causing several inches of new snow in the higher terrain. The models are indicating a warming and drying period next week. Northwest MT (Zones 104 and 105): The region will remain under a cool and showery weather pattern for the next several days. A significant low pressure system is expected Wednesday into Thursday bringing a decent amount of precipitation to the region. The models are indicating a warming and drying period next week. West Central MT (Zones 106, 107 and 108): The region will remain under a cool and showery weather pattern for the next several days. A significant low pressure system is expected Wednesday into Thursday bringing a decent amount of precipitation to the region. Snow levels drop to around 6000 feet by Thursday morning causing several inches of new snow in the higher terrain. The models are indicating a warming and drying period next week. Southwest MT (Zones 109, 110 and 111): The region will remain under a cool and showery weather pattern for the next several days. A significant low pressure system is expected Wednesday into Thursday bringing a decent amount of precipitation to the region. Snow levels drop to around 5000 feet by Thursday morning causing several inches of new snow in the higher terrain. The models are indicating a warming and drying period next week. IDZ102-103-211030- Palouse/Hells Canyon-Clearwater/Nez Perce- 316 AM PDT Mon May 20 2024 .TODAY... * Sky/Weather.........Partly cloudy. Chance of rain and snow in the morning. Chance of thunderstorms in the afternoon. Snow level 5500 feet. * Max Temperature.....55-65 valleys and 45-50 ridges. * Min Humidity........38-48 percent valleys and 46-56 percent ridges. * 20-Foot Winds....... * Lower Elevation......Northwest 5-15 mph. * Ridge Top............Northwest 5-15 mph. * Haines Index........3 very low. * LAL.................3. * CWR (> 0.10 Inch)...10 percent. .TONIGHT... * Sky/Weather.........Partly cloudy. Chance of rain and thunderstorms. Widespread frost after midnight. Snow level 6000 feet. * Min Temperature.....30-40. * Max Humidity........81-91 percent valleys and 75-85 percent ridges. * 20-Foot Winds....... * Lower Elevation......Variable less than 5 mph in the evening becoming downslope/downvalley 1-3 mph. * Ridge Top............Northwest 5-15 mph. * LAL.................2 in the Palouse/Hells Canyon...and 3 in the Clearwater/Nez Perce. * CWR (> 0.10 Inch)...10 percent. .TUESDAY... * Sky/Weather.........Partly cloudy. Widespread frost in the morning. Snow level 6000 feet. * Max Temperature.....65-75 valleys and 50-60 ridges. * Min Humidity........28-38 percent valleys and 35-45 percent ridges. * 20-Foot Winds....... * Lower Elevation......Variable less than 7 mph. * Ridge Top............West 10-15 mph. * Haines Index........2 very low. * LAL.................1. * CWR (> 0.10 Inch)...0 percent. .WEDNESDAY...Cooler. Rain showers and slight chance of thunderstorms. Lows 40-50. Highs 45-55. Min humidities 50-60 percent. West winds 10-15 mph. .THURSDAY...Mostly 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...Mostly cloudy with chance of rain. Lows 35-45. Highs 55-65. South winds 5-10 mph. .SATURDAY...Mostly cloudy. Rain likely. Lows 40-50. Highs 50-60. .SUNDAY...Partly cloudy. Chance of rain and snow. Lows 35-45. Highs 55-65. $$ MTZ104-105-211030- Kootenai-Flathead/Glacier Park- 416 AM MDT Mon May 20 2024 .TODAY... * Sky/Weather.........Partly cloudy. Areas of frost in the morning. Slight chance of snow in the morning. Snow showers likely and slight chance of thunderstorms in the afternoon. Snow level 6000 feet. * Max Temperature.....60-70 valleys and 45-55 ridges. * Min Humidity........33-43 percent valleys and 48-58 percent ridges. * 20-Foot Winds....... * Lower Elevation......Variable less than 7 mph. * Ridge Top............West 5-15 mph. * Haines Index........3 very low. * LAL.................3. * CWR (> 0.10 Inch)...10 percent. .TONIGHT... * Sky/Weather.........Partly cloudy. Chance of rain showers and slight chance of thunderstorms. Areas of frost after midnight. Snow level 6500 feet. * Min Temperature.....30-40. * Max Humidity........90-100 percent valleys and 80-90 percent ridges. * 20-Foot Winds....... * Lower Elevation......Variable less than 5 mph in the evening becoming downslope/downvalley 1-3 mph. * Ridge Top............West 5-15 mph. * LAL.................3. * CWR (> 0.10 Inch)...10 percent. .TUESDAY... * 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........25-35 percent valleys and 42-52 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. .WEDNESDAY...Cooler. Mostly cloudy with rain showers and slight chance of thunderstorms. Lows 40-50. Highs 45-55. Min humidities 40-50 percent. Southwest winds 10-15 mph. .THURSDAY...Mostly cloudy with rain showers with possible snow and thunderstorms. Lows 35-45. Highs 50-60. Min humidities 35-45 percent. North winds 10-15 mph. .FRIDAY...Mostly cloudy with chance of rain. Lows 40-50. Highs 50-60. Southwest winds 10-15 mph. .SATURDAY...Mostly cloudy. Rain showers likely with possible snow and thunderstorms. Lows 40-50. Highs 50-60. .SUNDAY...Mostly cloudy. Chance of rain and snow. Lows 35-45. Highs 50-60. $$ MTZ106-108-211030- West Lolo-East Lolo- 416 AM MDT Mon May 20 2024 .TODAY... * Sky/Weather.........Partly cloudy. Widespread frost in the morning. Slight chance of rain and snow in the morning. Snow showers likely and slight chance of thunderstorms in the afternoon. Snow level 5500 feet. * Max Temperature.....55-65 valleys and 43-53 ridges. * Min Humidity........31-41 percent valleys and 40-50 percent ridges. * 20-Foot Winds....... * Lower Elevation......West 5-15 mph. * Ridge Top............West 5-15 mph. * Haines Index........3 very low. * LAL.................3. * CWR (> 0.10 Inch)...10 percent. .TONIGHT... * Sky/Weather.........Partly cloudy. Slight chance of rain showers and thunderstorms. Areas of frost after midnight. Snow level 6500 feet. * Min Temperature.....30-40. * Max Humidity........84-94 percent valleys and 78-88 percent ridges. * 20-Foot Winds....... * Lower Elevation......West 5-10 mph in the evening becoming downslope/downvalley 2-5 mph. * Ridge Top............West 5-15 mph. * LAL.................2. * CWR (> 0.10 Inch)...0 percent. .TUESDAY... * 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 36-46 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. .WEDNESDAY...Cooler. Mostly cloudy with rain showers and slight chance of thunderstorms. Lows 40-50. Highs 50-60. Min humidities 50-60 percent. Southwest winds 10-15 mph. .THURSDAY...Mostly cloudy with rain showers, snow and slight chance of thunderstorms. Lows 35-45. Highs 50-60. Min humidities 45-55 percent. Northwest winds 10-15 mph. .FRIDAY...Mostly cloudy with chance of rain. Lows 35-45. Highs 55-65. Southwest winds 10-15 mph. .SATURDAY...Mostly cloudy. Chance of rain. Lows 40-50. Highs 50-60. .SUNDAY...Partly cloudy. Chance of rain and snow. Lows 35-45. Highs 50-60. $$ MTZ107-211030- Flathead Reservation- 416 AM MDT Mon May 20 2024 .TODAY... * Sky/Weather.........Partly cloudy. Areas of frost in the morning. Slight chance of thunderstorms in the afternoon. Snow level 5500 feet. * Max Temperature.....60-65 valleys and 40-45 ridges. * Min Humidity........40-50 percent valleys and 50-60 percent ridges. * 20-Foot Winds....... * Lower Elevation......Variable less than 7 mph. * Ridge Top............West 5-15 mph becoming northwest 10-15 mph in the afternoon. * Haines Index........3 very low. * LAL.................3 in areas west of Highway 93...and 2 in the Mission Mtns and areas east of Highway 93. * CWR (> 0.10 Inch)...20 percent. .TONIGHT... * Sky/Weather.........Partly cloudy. Slight chance of rain showers and thunderstorms. Snow level 6500 feet. * Min Temperature.....35-40. * Max Humidity........74-84 percent. * 20-Foot Winds....... * Lower Elevation......Southwest 10-15 mph. * Ridge Top............Southwest 10-15 mph. * LAL.................2. * CWR (> 0.10 Inch)...0 percent in areas west of Highway 93...and 20 percent in the Mission Mtns and areas east of Highway 93. .TUESDAY... * Sky/Weather.........Partly cloudy. Snow level 6500 feet. * Max Temperature.....65-70 valleys and 45-50 ridges. * Min Humidity........27-37 percent valleys and 40-50 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. .WEDNESDAY...Cooler. Cloudy with rain showers and slight chance of thunderstorms. Lows 45-55. Highs 50-60. Min humidities 45-55 percent. Southwest winds 10-15 mph. .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...Mostly cloudy with chance of rain. Lows 40-50. Highs 55-65. Southwest winds 10-15 mph. .SATURDAY...Mostly cloudy. Chance of rain and slight chance of thunderstorms. Lows 40-50. Highs 55-65. .SUNDAY...Partly cloudy. Chance of rain. Lows 40-50. Highs 55-65. $$ MTZ109-211030- Bitterroot- 416 AM MDT Mon May 20 2024 .TODAY... * Sky/Weather.........Mostly cloudy. Chance of snow and rain in the morning, then rain showers, snow showers likely and chance of thunderstorms in the afternoon. Snow level 5500 feet. * Max Temperature.....55-60 valleys and 40-45 ridges. * Min Humidity........33-43 percent valleys and 45-55 percent ridges. * 20-Foot Winds....... * Lower Elevation......Northwest 5-15 mph. * Ridge Top............Northwest 5-15 mph. * Haines Index........3 very low. * LAL.................3. * CWR (> 0.10 Inch)...30 percent. .TONIGHT... * Sky/Weather.........Partly cloudy. Chance of snow showers, slight chance of rain showers and thunderstorms. Widespread frost after midnight. Snow level 6000 feet. * Min Temperature.....25-35. * Max Humidity........86-96 percent valleys and 79-89 percent ridges. * 20-Foot Winds....... * Lower Elevation......Northwest 5-10 mph becoming variable less than 5 mph after midnight. * Ridge Top............Northwest 5-15 mph. * LAL.................3. * CWR (> 0.10 Inch)...20 percent. .TUESDAY... * Sky/Weather.........Partly cloudy. Widespread frost in the morning. 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 33-43 percent ridges. * 20-Foot Winds....... * Lower Elevation......Variable less than 7 mph. * Ridge Top............West 5-15 mph. * Haines Index........3 very low. * LAL.................1. * CWR (> 0.10 Inch)...0 percent. .WEDNESDAY...Cooler. Rain showers with possible snow and thunderstorms. Lows 40-50. Highs 45-55. Min humidities 55-65 percent. West winds 10-15 mph. .THURSDAY...Cloudy with rain showers, snow showers and slight chance of thunderstorms. Lows 35-45. Highs 40-50. Min humidities 45-55 percent. Northwest winds 5-15 mph. .FRIDAY...Mostly cloudy with chance of rain and snow. Lows 30-40. Highs 50-60. Southwest winds 10-15 mph. .SATURDAY...Mostly cloudy. Chance of rain and snow. Lows 35-45. Highs 45-55. .SUNDAY...Partly cloudy. Chance of rain and snow. Lows 30-40. Highs 50-60. $$ MTZ110-111-211030- Deerlodge/West Beaverhead-East Beaverhead- 416 AM MDT Mon May 20 2024 .TODAY... * Sky/Weather.........Mostly cloudy. Snow showers likely. Chance of rain showers and slight chance of thunderstorms in the afternoon. Snow level 6000 feet. * Max Temperature.....50-55 valleys and 40-45 ridges. * Min Humidity........27-37 percent valleys and 35-45 percent ridges. * 20-Foot Winds....... * Lower Elevation......North 5-15 mph. * Ridge Top............North 5-15 mph. * Haines Index........3 very low. * LAL.................3. * CWR (> 0.10 Inch)...10 percent. .TONIGHT... * Sky/Weather.........Partly cloudy. Chance of snow showers, rain showers and slight chance of thunderstorms. Widespread frost after midnight. Snow level 6000 feet. * Min Temperature.....25-30. * Max Humidity........75-85 percent. * 20-Foot Winds....... * Lower Elevation......Northwest 10-15 mph becoming west 5-10 mph after midnight. * Ridge Top............Northwest 5-15 mph. * LAL.................3. * CWR (> 0.10 Inch)...10 percent. .TUESDAY... * Sky/Weather.........Partly cloudy. Chance of snow showers. Slight chance of thunderstorms in the afternoon. Snow level 6500 feet. * Max Temperature.....55-60 valleys and 45-50 ridges. * Min Humidity........20-30 percent valleys and 26-36 percent ridges. * 20-Foot Winds....... * Lower Elevation......Northwest 5-15 mph. * Ridge Top............Northwest 5-15 mph. * Haines Index........3 very low. * LAL.................2. * CWR (> 0.10 Inch)...10 percent. .WEDNESDAY...Mostly cloudy with rain showers with possible snow and thunderstorms. Lows 35-45. Highs 50-60. Min humidities 40-50 percent. Southwest winds 10-20 mph. .THURSDAY...Colder. Cloudy with rain showers, snow showers and slight chance of thunderstorms. Lows 30-40. Highs 40-50. Min humidities 40-50 percent. Northwest winds 10-20 mph. .FRIDAY...Mostly cloudy with chance of rain showers, snow and slight chance of thunderstorms. Lows 30-40. Highs 50-60. Southwest winds 10-15 mph. .SATURDAY...Mostly cloudy. Rain showers likely with possible snow and thunderstorms. Lows 35-45. Highs 55-65. .SUNDAY...Partly cloudy. Chance of rain showers, snow and slight chance of thunderstorms. Lows 30-40. Highs 50-60. $$