Alert archive / Montana / Winter Storm Warnings in 2021
Winter Storm Warning 14, NWS Missoula, MT
NWS Missoula, MT issued this winter storm warning at Dec 24, 2021, 12:32 PM MST for Flathead County, Lake County, Montana. It took effect at Dec 24, 2021, 5:00 PM MST. It was in force for 18 hr. 7 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Dec 24, 2021, 12:32 PM MST (19:32 UTC)
- In effect from
- Dec 24, 2021, 5:00 PM MST
- Expired
- Dec 25, 2021, 11:00 AM MST
- In force
- 18 hr
- Issued by
- NWS Missoula, MT
Counties Flathead County, MT, Lake County, MT
The radar
The Missoula radar (KMSX), 104 km from the middle of the area, began a volume at 19:36 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Dec 25, 12:28 AM MST | HEAVY SNOW 4 | 5 Nw Coram, MT | |
| Dec 25, 9:51 AM MST | SNOW 0.5 | 8 N Finley Point, MT | SNOW OCCURRENCE WITHIN AN HOUR OF DAILY MORNING REPORT. |
| Dec 25, 10:00 AM MST | SNOW 4.9 | 4 Se Essex, MT | MESONET STATION S11MT SHED 11. |
| Dec 25, 10:00 AM MST | SNOW 6.2 | 2 Sw Blacktail - Railro, MT | MESONET STATION SH7MT SHED 7. |
| Dec 25, 10:00 AM MST | SNOW 7 | 6 N Whitefish, MT | MESONET STATION BIGMS 6.3 N WHITEFISH (GNP). |
| Dec 25, 10:00 AM MST | SNOW 7.9 | 5 Ene Blacktail - Railr, MT | MESONET STATION MRPMT MARIAS PASS. |
| Dec 25, 10:00 AM MST | SNOW 10.9 | 3 Sw Pinnacle, MT | MESONET STATION TRSMT TUNNEL RIDGE SNOW. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Spokane, WA (KOTX), launched 12:00Z, 7.5 hours before the alert went out and 177 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 815 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 91 m²/s²
- 0-3 km storm-relative helicity
- 79 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
589 WWUS45 KMSO 241932 WSWMSO URGENT - WINTER WEATHER MESSAGE National Weather Service Missoula MT 1232 PM MST Fri Dec 24 2021 MTZ002-251800- /O.UPG.KMSO.WS.A.0010.211225T0000Z-211225T1800Z/ /O.NEW.KMSO.WS.W.0014.211225T0000Z-211225T1800Z/ /O.CON.KMSO.WW.Y.0076.000000T0000Z-211225T0000Z/ West Glacier Region- 1232 PM MST Fri Dec 24 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... ...WINTER STORM WARNING IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST SATURDAY... * WHAT...For the Winter Storm Warning, heavy snow expected. Total snow accumulations of 5 to 8 inches along Hwy 2 to about West Glacier, then 8 to 12 inches from West Glacier to Marias Pass. For the Winter Weather Advisory, snow. Additional snow accumulations of up to one inch. * WHERE...Bad Rock Canyon, Essex, Highway 83 Bigfork to Swan Lake, Marias Pass, and Polebridge. * WHEN...For the Winter Storm Warning, from 5 PM this afternoon to 11 AM MST Saturday. For the Winter Weather Advisory, until 5 PM MST this afternoon. * IMPACTS...Travel could be affected. The cold wind chills as low as 20 below zero could result in hypothermia if precautions are not taken. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ MTZ001-251945- /O.NEW.KMSO.WS.A.0011.211226T0900Z-211227T0600Z/ /O.CON.KMSO.WW.Y.0077.211224T2100Z-211225T1800Z/ Kootenai/Cabinet Region- 1232 PM MST Fri Dec 24 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST SATURDAY... ...WINTER STORM WATCH IN EFFECT FROM LATE SATURDAY NIGHT THROUGH SUNDAY EVENING... * WHAT...For the Winter Weather Advisory, snow expected. Total snow accumulations of 3 to 9 inches. For the Winter Storm Watch, snow possible, along with blowing snow and a sudden drop in temperature to below 0 degrees. Total snow accumulations of 2 to 4 inches possible. * WHERE...Highway 2 Kalispell to Libby, Highway 37 Eureka to Libby, Highway 56 Bull Lake Road, and Highway 93 Eureka to Whitefish. * WHEN...For the Winter Weather Advisory, until 11 AM MST Saturday. For the Winter Storm Watch, from late Saturday night through Sunday evening. * IMPACTS...Travel could be very difficult to impossible. The cold wind chills as low as 30 below zero could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Monitor the latest forecasts for updates on this situation. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ MTZ004-251800- /O.CON.KMSO.WW.Y.0076.000000T0000Z-211225T1800Z/ Lower Clark Fork Region- 1232 PM MST Fri Dec 24 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST SATURDAY... * WHAT...Snow. Additional snow accumulations of 4 to 8 inches over Lookout Pass, with 2 to 4 inches across valley locations near the Idaho border. Up to 2 inches elsewhere. * WHERE...Highway 200 Thompson Falls to Plains, Highway 200 Trout Creek to Heron, and I-90 Lookout Pass to Haugan. * WHEN...Until 11 AM MST Saturday. * IMPACTS...Travel could be affected. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ MTZ003-251945- /O.NEW.KMSO.WS.A.0011.211226T0900Z-211227T0600Z/ Flathead/Mission Valleys- 1232 PM MST Fri Dec 24 2021 ...WINTER STORM WATCH IN EFFECT FROM LATE SATURDAY NIGHT THROUGH SUNDAY EVENING... * WHAT...Snow. Total snow accumulations of up to two inches possible, along with blowing snow and a sudden drop in temperature to single digits. * WHERE...Flathead Lake, Flathead Valley, Mission Valley, and Polson. * WHEN...From late Saturday night through Sunday evening. * IMPACTS...Travel could be affected. The cold wind chills as low as 15 below zero could result in hypothermia if precautions are not taken. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. && $$ MTZ007-251945- /O.NEW.KMSO.WS.A.0011.211226T0900Z-211227T0600Z/ Butte/Blackfoot Region- 1232 PM MST Fri Dec 24 2021 ...WINTER STORM WATCH IN EFFECT FROM LATE SATURDAY NIGHT THROUGH SUNDAY EVENING... * WHAT...Heavy snow possible. Total snow accumulations of up to two inches possible. * WHERE...Butte, Georgetown Lake, Highway 12 Garrison to Elliston, Homestake Pass, and MacDonald Pass. * WHEN...From late Saturday night through Sunday evening. * IMPACTS...Travel could be affected. The cold wind chills as low as 25 below zero could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. && $$
3 follow-up statements
602 WWUS45 KMSO 241937 WSWMSO URGENT - WINTER WEATHER MESSAGE National Weather Service Missoula MT 1237 PM MST Fri Dec 24 2021 MTZ002-251800- /O.CON.KMSO.WS.W.0014.211225T0000Z-211225T1800Z/ /O.CON.KMSO.WW.Y.0076.000000T0000Z-211225T0000Z/ West Glacier Region- 1237 PM MST Fri Dec 24 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... ...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST SATURDAY... * WHAT...For the Winter Storm Warning, heavy snow expected. Total snow accumulations of 5 to 8 inches along Hwy 2 to about West Glacier, then 8 to 12 inches from West Glacier to Marias Pass. For the Winter Weather Advisory, snow. Additional snow accumulations of up to one inch. * WHERE...Bad Rock Canyon, Essex, Highway 83 Bigfork to Swan Lake, Marias Pass, and Polebridge. * WHEN...For the Winter Storm Warning, from 5 PM this afternoon to 11 AM MST Saturday. For the Winter Weather Advisory, until 5 PM MST this afternoon. * IMPACTS...Travel could be affected. The cold wind chills as low as 20 below zero could result in hypothermia if precautions are not taken. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ MTZ001-251945- /O.CON.KMSO.WW.Y.0077.211224T2100Z-211225T1800Z/ /O.CON.KMSO.WS.A.0011.211226T0900Z-211227T0600Z/ Kootenai/Cabinet Region- 1237 PM MST Fri Dec 24 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST SATURDAY... ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE SATURDAY NIGHT THROUGH SUNDAY EVENING... * WHAT...For the Winter Weather Advisory, snow expected. Total snow accumulations of 3 to 9 inches. For the Winter Storm Watch, snow possible, along with blowing snow and a sudden drop in temperature to below 0 degrees. Total snow accumulations of 2 to 4 inches possible. * WHERE...Highway 2 Kalispell to Libby, Highway 37 Eureka to Libby, Highway 56 Bull Lake Road, and Highway 93 Eureka to Whitefish. * WHEN...For the Winter Weather Advisory, until 11 AM MST Saturday. For the Winter Storm Watch, from late Saturday night through Sunday evening. * IMPACTS...Travel could be very difficult to impossible. The cold wind chills as low as 30 below zero could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Monitor the latest forecasts for updates on this situation. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ MTZ004-251800- /O.CON.KMSO.WW.Y.0076.000000T0000Z-211225T1800Z/ Lower Clark Fork Region- 1237 PM MST Fri Dec 24 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST SATURDAY... * WHAT...Snow. Additional snow accumulations of 4 to 8 inches over Lookout Pass, with 2 to 4 inches across valley locations near the Idaho border. Up to 2 inches elsewhere. * WHERE...Highway 200 Thompson Falls to Plains, Highway 200 Trout Creek to Heron, and I-90 Lookout Pass to Haugan. * WHEN...Until 11 AM MST Saturday. * IMPACTS...Travel could be affected. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ MTZ003-251945- /O.CON.KMSO.WS.A.0011.211226T0900Z-211227T0600Z/ Flathead/Mission Valleys- 1237 PM MST Fri Dec 24 2021 ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE SATURDAY NIGHT THROUGH SUNDAY EVENING... * WHAT...Snow. Total snow accumulations of 1 to 4 inches possible, along with blowing snow and a sudden drop in temperature to single digits. * WHERE...Flathead Lake, Flathead Valley, Mission Valley, and Polson. * WHEN...From late Saturday night through Sunday evening. * IMPACTS...Travel could be affected. The cold wind chills as low as 15 below zero could result in hypothermia if precautions are not taken. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. && $$ MTZ007-251945- /O.CON.KMSO.WS.A.0011.211226T0900Z-211227T0600Z/ Butte/Blackfoot Region- 1237 PM MST Fri Dec 24 2021 ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE SATURDAY NIGHT THROUGH SUNDAY EVENING... * WHAT...Snow. Total snow accumulations of 1 to 4 inches possible, along with blowing snow and a sudden drop in temperature below 0 degrees * WHERE...Butte, Georgetown Lake, Highway 12 Garrison to Elliston, Ovando, Homestake Pass, and MacDonald Pass. * WHEN...From late Saturday night through Sunday evening. * IMPACTS...Travel could be affected. The cold wind chills as low as 25 below zero could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. && $$
111 WWUS45 KMSO 250951 WSWMSO URGENT - WINTER WEATHER MESSAGE National Weather Service Missoula MT 251 AM MST Sat Dec 25 2021 MTZ002-251800- /O.CON.KMSO.WS.W.0014.000000T0000Z-211225T1800Z/ West Glacier Region- 251 AM MST Sat Dec 25 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * WHAT...Heavy snow. Additional snow accumulations of 3 to 6 inches. * WHERE...Bad Rock Canyon, Essex, Highway 83 Bigfork to Swan Lake, Marias Pass, and Polebridge. * WHEN...Until 11 AM MST this morning. * IMPACTS...Travel could be very difficult. Areas of blowing and drifting snow are expected from Essex to Marias Pass. The cold wind chills as low as 20 below zero could result in hypothermia if precautions are not taken. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ MTZ001-261000- /O.EXT.KMSO.WS.A.0011.211226T1200Z-211227T0600Z/ /O.CON.KMSO.WW.Y.0077.000000T0000Z-211225T1800Z/ Kootenai/Cabinet Region- 251 AM MST Sat Dec 25 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... ...WINTER STORM WATCH NOW IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY EVENING... * WHAT...For the Winter Weather Advisory, snow. Additional snow accumulations of 1 to 3 inches. For the Winter Storm Watch, heavy snow possible, along with blowing snow, and a sudden drop in temperature to below 0 degrees. Total snow accumulations of 2 to 4 inches possible. * WHERE...Highway 2 Kalispell to Libby, Highway 37 Eureka to Libby, Highway 56 Bull Lake Road, and Highway 93 Eureka to Whitefish. * WHEN...For the Winter Weather Advisory, until 11 AM MST this morning. For the Winter Storm Watch, from late tonight through Sunday evening. * IMPACTS...Travel could be very difficult to impossible. The cold wind chills as low as 30 below zero could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Monitor the latest forecasts for updates on this situation. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ MTZ004-251800- /O.CON.KMSO.WW.Y.0076.000000T0000Z-211225T1800Z/ Lower Clark Fork Region- 251 AM MST Sat Dec 25 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * WHAT...Snow. Additional snow accumulations of 2 to 5 inches from Haugan to Lookout Pass, with up to one inch across valley locations. * WHERE...Evaro Hill, Highway 200 Thompson Falls to Plains, Highway 200 Trout Creek to Heron, and I-90 Lookout Pass to Haugan. * WHEN...Until 11 AM MST this morning. * IMPACTS...Travel could be affected. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ MTZ003-261000- /O.EXT.KMSO.WS.A.0011.211226T1200Z-211227T0600Z/ Flathead/Mission Valleys- 251 AM MST Sat Dec 25 2021 ...WINTER STORM WATCH NOW IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY EVENING... * WHAT...Heavy snow possible. Total snow accumulations of 1 to 4 inches possible, along with blowing snow, and a sudden drop in temperature to single digits. * WHERE...Flathead Lake, Flathead Valley, Mission Valley, and Polson. * WHEN...From late tonight through Sunday evening. * IMPACTS...Travel could be affected. The cold wind chills as low as 15 below zero could result in hypothermia if precautions are not taken. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. && $$ MTZ007-261000- /O.EXT.KMSO.WS.A.0011.211226T1200Z-211227T0600Z/ Butte/Blackfoot Region- 251 AM MST Sat Dec 25 2021 ...WINTER STORM WATCH NOW IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY EVENING... * WHAT...Heavy snow possible. Total snow accumulations of 1 to 4 inches possible, along with blowing snow, and a sudden drop in temperature below 0 degrees * WHERE...Butte, Georgetown Lake, Highway 12 Garrison to Elliston, Homestake Pass, and MacDonald Pass. * WHEN...From late tonight through Sunday evening. * IMPACTS...Travel could be affected. The cold wind chills as low as 25 below zero could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. && $$
678 WWUS45 KMSO 251800 WSWMSO URGENT - WINTER WEATHER MESSAGE National Weather Service Missoula MT 1100 AM MST Sat Dec 25 2021 MTZ002-261800- /O.EXP.KMSO.WS.W.0014.000000T0000Z-211225T1800Z/ /O.NEW.KMSO.WW.Y.0078.211225T1800Z-211226T0000Z/ /O.NEW.KMSO.WC.Y.0004.211226T0000Z-211226T1800Z/ West Glacier Region- 1100 AM MST Sat Dec 25 2021 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... ...WIND CHILL ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST SUNDAY... ...WINTER STORM WARNING HAS EXPIRED... * WHAT...For the Winter Weather Advisory, snow. Additional snow accumulations of 1 to 3 inches. For the Wind Chill Advisory, very cold wind chills expected. Wind chills as low as 30 below zero. * WHERE...Bad Rock Canyon, Essex, Highway 83 Bigfork to Swan Lake, Marias Pass, and Polebridge. * WHEN...For the Winter Weather Advisory, until 5 PM MST this afternoon. For the Wind Chill Advisory, from 5 PM this afternoon to 11 AM MST Sunday. * IMPACTS...Travel could be affected. The dangerously cold wind chills could cause frostbite on exposed skin in as little as 10 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ MTZ001-261800- /O.EXP.KMSO.WW.Y.0077.000000T0000Z-211225T1800Z/ /O.CON.KMSO.WS.A.0011.211226T1200Z-211227T0600Z/ Kootenai/Cabinet Region- 1100 AM MST Sat Dec 25 2021 ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY EVENING... ...WINTER WEATHER ADVISORY HAS EXPIRED... * WHAT...Heavy snow possible. Total snow accumulations of 2 to 4 inches possible. * WHERE...Highway 2 Kalispell to Libby, Highway 37 Eureka to Libby, Highway 56 Bull Lake Road, and Highway 93 Eureka to Whitefish. * WHEN...For the Winter Weather Advisory, until 11 AM MST this morning. For the Winter Storm Watch, from late tonight through Sunday evening. * IMPACTS...Travel could be very difficult. The cold wind chills as low as 30 below zero could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. && $$ MTZ004-251900- /O.EXP.KMSO.WW.Y.0076.000000T0000Z-211225T1800Z/ Lower Clark Fork Region- 1100 AM MST Sat Dec 25 2021 ...WINTER WEATHER ADVISORY HAS EXPIRED... $$ MTZ003-261800- /O.CON.KMSO.WS.A.0011.211226T1200Z-211227T0600Z/ Flathead/Mission Valleys- 1100 AM MST Sat Dec 25 2021 ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY EVENING... * WHAT...Heavy snow possible. Total snow accumulations of 1 to 4 inches possible, along with blowing snow, and a sudden drop in temperature to single digits. * WHERE...Flathead Lake, Flathead Valley, Mission Valley, and Polson. * WHEN...From late tonight through Sunday evening. * IMPACTS...Travel could be affected. The cold wind chills as low as 15 below zero could result in hypothermia if precautions are not taken. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. && $$ MTZ007-261800- /O.CON.KMSO.WS.A.0011.211226T1200Z-211227T0600Z/ Butte/Blackfoot Region- 1100 AM MST Sat Dec 25 2021 ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH SUNDAY EVENING... * WHAT...Heavy snow possible. Total snow accumulations of 1 to 4 inches possible, along with blowing snow, and a sudden drop in temperature below 0 degrees. * WHERE...Butte, Georgetown Lake, Highway 12 Garrison to Elliston, Homestake Pass, and MacDonald Pass. * WHEN...From late tonight through Sunday evening. * IMPACTS...Travel could be affected. The cold wind chills as low as 25 below zero could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. && $$
The office that day
Everything else NWS Missoula, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 24, 2:52 AM MST | Winter Storm Watch | MSO | Flathead, Lake | 10 hr |
| Dec 24, 2:52 AM MST | Winter Weather Advisory | MSO | Flathead, Lincoln, Sanders | 32 hr |
| Dec 24, 12:32 PM MST | Winter Storm Watch | MSO | Deer Lodge, Flathead, Granite, Lake, Lincoln, Powell and 2 more | 24 hr |
Nearby
Winter Storm Warnings in Montana, 2021Every winter storm warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.