Hydrologic Outlook issued February 23 at 3:48AM MST by NWS Missoula MT
ESFMSO Where: Powell, Deer Lodge, and Silver Bow Counties in Montana and Lemhi County in Idaho. What: A significant warm up will continue through Monday, February 24. High temperatures will reach into the 40s, with overnight temperatures near or above freezing. Rapid lowland snowmelt will lead to ponding of water in low lying areas, especially in areas of poor drainage and/or in basements/crawlspaces. Ice jam releases are also a concern on small streams and/or creeks, and may lead to localized flooding. Rain showers will bring precipitation totals up to 0.20 inches across valley areas Sunday into Monday, with upwards of
Flood Watch issued February 23 at 3:45AM MST until February 24 at 2:00PM MST by NWS Missoula MT
* WHAT...Flooding caused by rain and/or snowmelt and/or ice jam continues to be possible. * WHERE...Clearwater and Idaho Counties in Idaho. * WHEN...Through Monday afternoon. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. Runoff will increase the risk for rock and mudslides below steep terrain. * ADDITIONAL DETAILS... - An atmospheric river will bring a significant warm up along with widespread rain through Monday, February 24. High temperatures will reach into the upper
Avalanche Warning issued February 23 at 7:24AM MST by NWS Missoula MT
AVWMSO The following message is transmitted at the request of Idaho Panhandle Avalanche Center Sandpoint ID. ...AVALANCHE WARNING ISSUED BY THE IDAHO PANHANDLE AVALANCHE CENTER... 06:00 PST Sun Feb 23 2025 The Idaho Panhandle Avalanche Center in Sandpoint has issued a BACKCOUNTRY AVALANCHE WARNING for the following areas: NWS Missoula MT - MTZ001 (MTZ001) NWS Spokane WA - ID 017 (Bonner County)...ID 021 (Boundary County)...ID 079 (Shoshone County) * WHAT...An Avalanche Warning is in effect from Sunday 6 AM to Monday 6 AM. Very dangerous avalanche conditions have developed from wet, dense snowfall and moderate to heavy rain saturating the
Avalanche Watch issued February 22 at 4:25PM MST by NWS Missoula MT
AVAMSO The following message is transmitted at the request of the West Central Montana Avalanche Center Missoula MT ...The West Central Montana Avalanche Center Missoula MT has issued a Backcountry Avalanche Watch... * WHAT...A warm weather system with potential for high elevation rain will impact the area Sunday. Avalanche danger will rise rapidly as the rain line rises in elevation. * WHERE...The Bitterroot mountains from Lost Trail Pass to Lolo Pass, The Rattlesnake Zone, and the Seeley Lake area. * WHEN...In effect until 700 AM MST Sunday. * IMPACTS...Heavy snowfall and rain may result in widespread areas of unstable snow.
Winter Weather Advisory issued February 22 at 1:16PM MST until February 23 at 8:00AM MST by NWS Missoula MT
* WHAT...Mixed precipitation expected. Refreeze of wet roads in the valleys. Total ice accumulations of a glaze to up to one tenth of an inch on ground surfaces. Snow accumulations of 2 to 4 inches of snow on Marias pass and up to 2 inches around Happys Inn, Marion and Olney. * WHERE...Polebridge, Highway 2 Kalispell to Libby, Essex, Mission Valley, Highway 56 Bull Lake Road, Flathead Lake, Flathead Valley, Marias Pass, Highway 93 Eureka to Whitefish, Highway 83 Bigfork to Swan Lake, Bad Rock Canyon, Polson, and Highway 37 Eureka to Libby. * WHEN...From 11 PM this evening to
Avalanche Watch issued February 22 at 8:19AM MST by NWS Missoula MT
AVAMSO The following message is transmitted at the request of Idaho Panhandle Avalanche Center Sandpoint ID. ...AVALANCHE WATCH ISSUED BY THE IDAHO PANHANDLE AVALANCHE CENTER... 06:00 PST Sat Feb 22 2025 The Idaho Panhandle Avalanche Center in Sandpoint has issued a BACKCOUNTRY AVALANCHE WATCH for the following areas: NWS Missoula MT - MTZ001 (MTZ001) NWS Spokane WA - ID 017 (Bonner County)...ID 021 (Boundary County)...ID 079 (Shoshone County) * WHAT...An Avalanche Watch is in effect from Saturday 6 AM PST to Sunday 6 AM PST. Very dangerous avalanche conditions are likely to develop by Sunday morning and raise the danger
Flood Watch issued February 22 at 3:56AM MST until February 24 at 2:00PM MST by NWS Missoula MT
* WHAT...Flooding caused by rain and/or snowmelt and/or ice jam continues to be possible. * WHERE...Clearwater and Idaho Counties in Idaho. * WHEN...From 2 PM MST /1 PM PST/ this afternoon through Monday afternoon. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. Runoff will increase the risk for rock and mudslides below steep terrain. * ADDITIONAL DETAILS... - An atmospheric river will bring a significant warm up along with widespread rain through Monday
Winter Weather Advisory issued February 21 at 1:17PM MST until February 23 at 8:00AM MST by NWS Missoula MT
* WHAT...Freezing rain expected. Total ice accumulations of a glaze to up to one tenth of an inch on ground surfaces. * WHERE...Highway 2 Kalispell to Libby, Flathead Lake, Highway 56 Bull Lake Road, Polebridge, Marias Pass, Highway 37 Eureka to Libby, Highway 93 Eureka to Whitefish, Highway 83 Bigfork to Swan Lake, Essex, Flathead Valley, Mission Valley, Polson, and Bad Rock Canyon. * WHEN...From 11 PM Saturday to 8 AM MST Sunday. * IMPACTS...Icy conditions will impact travel, with the most difficult travel conditions on secondary, gravel and dirt roadways. * ADDITIONAL DETAILS...Cold ground temperatures will allow for rain
Hydrologic Outlook issued February 21 at 2:16PM MST by NWS Missoula MT
ESFMSO Where: Powell, Deer Lodge, and Silver Bow Counties in Montana and Lemhi County in Idaho. What: A significant warm up is expected this weekend into early next week (February 24). High temperatures will reach into the 40s, with overnight temperatures near or above freezing. Rapid lowland snowmelt will lead to ponding of water in low lying areas, especially in areas of poor drainage and/or in basements/crawlspaces. Ice jam releases are also a concern on small streams and/or creeks, and may lead to localized flooding. Rain showers will bring precipitation totals up to 0.20 inches across valley areas Sunday into
Flood Watch issued February 20 at 12:38PM MST until February 24 at 2:00PM MST by NWS Missoula MT
* WHAT...Flooding caused by rain and/or snowmelt and/or ice jam is possible. * WHERE...Clearwater and Idaho Counties in Idaho. * WHEN...From Saturday afternoon through Monday afternoon. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. Runoff will increase the risk for rock and mudslides below steep terrain. * ADDITIONAL DETAILS... - An atmospheric river will bring a significant warm up along with widespread rain Saturday into Monday next week (February 24). High temperatures will