Alert archive / Montana / Winter Storm Warnings in 2020
Winter Storm Warning 3, NWS Missoula, MT
NWS Missoula, MT issued this winter storm warning at Jan 10, 2020, 4:02 AM MST for 5 counties in Montana; Clearwater County, Idaho County, Idaho. It took effect at Jan 10, 2020, 3:00 PM MST. It was in force for 24 hr. 20 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
- Jan 10, 2020, 4:02 AM MST (11:02 UTC)
- In effect from
- Jan 10, 2020, 3:00 PM MST
- Expired
- Jan 11, 2020, 2:46 PM MST
- In force
- 24 hr
- Issued by
- NWS Missoula, MT
Counties Clearwater County, ID, Idaho County, ID, Flathead County, MT, Lincoln County, MT, Mineral County, MT, Missoula County, MT, Sanders County, MT
The radar
The Missoula radar (KMSX), 79 km from the middle of the area, began a volume at 11:03 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 |
|---|---|---|---|
| Jan 10, 9:00 PM MST | SNOW 6 | Pierce, ID | 12 HOUR SNOWFALL. |
| Jan 10, 10:00 PM MST | SNOW 4 | Orofino, ID | 12 HOUR SNOWFALL. |
| Jan 10, 10:00 PM MST | SNOW 6.5 | 10 W Jaype, ID | 12 HOUR SNOWFALL. |
| Jan 10, 11:16 PM MST | SNOW 2 | 4 Nne Lolo, MT | ESTIMATED 2 INCHES IN A 6HR PERIOD IN THE LINDA VISTA AREAS SOUTH OF MISSOULA. REPORT CAME FROM SOCIAL MEDIA. |
| Jan 10, 11:24 PM MST | SNOW 2.4 | 3 Wnw Kalispell, MT | SNOW FELL FROM 1PM TO 11PM FRIDAY. |
| Jan 11, 12:20 AM MST | SNOW 3 | 1 Wsw La Salle, MT | 3 INCHES FELL DURING THE DAY FRIDAY 1/10 AT GLACIER INTERNATIONAL AIRPORT. |
| Jan 11, 1:07 AM MST | SNOW 3 | 3 Sse Whitefish, MT | |
| Jan 11, 1:30 AM MST | SNOW 3.9 | 1 Sw Columbia Falls, MT | TOTAL SINCE FRIDAY AFTERNOON. |
| Jan 11, 5:00 AM MST | SNOW 3.5 | La Salle, MT | KGPI - 24 HOUR SNOWFALL. |
| Jan 11, 7:13 AM MST | SNOW 3.5 | 2 Wnw Belknap, MT | 24 HOUR SNOWFALL. |
| Jan 11, 8:00 AM MST | SNOW 5 | Yaak, MT | 24 HOUR SNOWFALL. |
| Jan 11, 8:15 AM MST | SNOW 4 | 4 Sse Creston, MT | |
| Jan 11, 8:15 AM MST | SNOW 5.5 | 4 Nw Noxon, MT | 24 HOUR SNOWFALL. |
| Jan 11, 9:00 AM MST | SNOW 4.7 | Whitefish, MT | 24 HOUR SNOWFALL. |
| Jan 11, 9:00 AM MST | SNOW 5 | Libby, MT | 24 HOUR SNOWFALL. |
| Jan 11, 9:00 AM MST | SNOW 6 | 4 Nnw Coram, MT | 24 HOUR SNOWFALL. |
| Jan 11, 10:18 AM MST | SNOW 0.4 | 6 Nw Missoula, MT | 24 HOUR SNOWFALL. |
| Jan 11, 10:34 AM MST | SNOW 8 | Troy, MT | 24 HOUR SNOWFALL. |
| Jan 11, 10:35 AM MST | SNOW 4 | 4 Wsw Kila, MT | 24 HOUR SNOWFALL. |
| Jan 11, 11:18 AM MST | SNOW 7 | Lolo Pass, MT |
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 00:00Z, 11.0 hours before the alert went out and 117 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
- 1627 m above ground
- 0-6 km bulk shear
- 96 kt
- 0-1 km storm-relative helicity
- 20 m²/s²
- 0-3 km storm-relative helicity
- 88 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
814 WWUS45 KMSO 101102 WSWMSO URGENT - WINTER WEATHER MESSAGE National Weather Service Missoula MT 402 AM MST Fri Jan 10 2020 MTZ001-111115- /O.UPG.KMSO.WS.A.0001.200111T0000Z-200112T0000Z/ /O.NEW.KMSO.WS.W.0003.200110T2200Z-200111T2200Z/ Kootenai/Cabinet Region- 402 AM MST Fri Jan 10 2020 ...WINTER STORM WARNING IN EFFECT FROM 3 PM THIS AFTERNOON TO 3 PM MST SATURDAY... * WHAT...Heavy snow expected. Total valley snow accumulations of 5 to 10 inches. The highest totals are expected near the Idaho border along Highway 56 Bull Lake Road, Highway 2 from Troy to the Idaho border and in the vicinity of Yaak. Other valleys will see 2 to 5 inches. * WHERE...Highway 2 Kalispell to Libby, Highway 37 Eureka to Libby, Highway 56 Bull Lake Road, and Highway 93 Eureka to Whitefish. * WHEN...From 3 PM this afternoon to 3 PM MST Saturday. * IMPACTS...Travel could be very difficult. 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. && $$ MTZ004-111115- /O.UPG.KMSO.WS.A.0001.200111T0000Z-200112T0000Z/ /O.NEW.KMSO.WS.W.0003.200110T2200Z-200111T2200Z/ Lower Clark Fork Region- 402 AM MST Fri Jan 10 2020 ...WINTER STORM WARNING IN EFFECT FROM 3 PM THIS AFTERNOON TO 3 PM MST SATURDAY... * WHAT...Heavy snow expected. Total valley snow accumulations of 5 to 10 inches with 14 to 18 inches over Lookout Pass. The highest valley accumulations are expected near the Idaho border along Highway 200 from Thompson Falls to Heron and along Interstate 90 from Saint Regis to Lookout Pass. Locations further east can expect 2 to 5 inches. * WHERE...Evaro Hill, Highway 200 Thompson Falls to Plains, Highway 200 Trout Creek to Heron, and I-90 Lookout Pass to Haugan. * WHEN...From 3 PM this afternoon to 3 PM MST Saturday. * IMPACTS...Travel could be very difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IDZ005-006-111115- /O.UPG.KMSO.WS.A.0001.200111T0000Z-200112T0000Z/ /O.NEW.KMSO.WS.W.0003.200110T2200Z-200111T2200Z/ Northern Clearwater Mountains-Southern Clearwater Mountains- 302 AM PST Fri Jan 10 2020 ...WINTER STORM WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO 2 PM PST SATURDAY... * WHAT...Heavy snow expected. Total snow accumulations of 6 to 14 inches. * WHERE...Elk River, Highway 11 Pierce to Headquarters, Pierce, Dixie, Elk City, and Highway 12 Lowell to Lolo Pass. * WHEN...From 2 PM this afternoon to 2 PM PST Saturday. * IMPACTS...Travel could be very difficult. 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. && $$ IDZ007-111115- /O.UPG.KMSO.WS.A.0001.200111T0000Z-200111T1200Z/ /O.NEW.KMSO.WS.W.0003.200110T2200Z-200111T0800Z/ Orofino/Grangeville Region- 302 AM PST Fri Jan 10 2020 ...WINTER STORM WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO MIDNIGHT PST TONIGHT... * WHAT...Heavy snow expected. Blowing snow expected on the Camas Prairie. Total snow accumulations of 2 to 5 inches. Winds could gust up to 45 mph near Grangeville. * WHERE...Camas Prairie, Grangeville and vicinity, and Greer Grade. * WHEN...From 2 PM this afternoon to midnight PST tonight. * IMPACTS...Travel could be difficult to impossible on the Camas Prairie. Blowing snow could significantly reduce visibility on the Camas Prairie and over Whitebird Grade. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IDZ008-111115- /O.UPG.KMSO.WS.A.0001.200111T0000Z-200111T1200Z/ /O.NEW.KMSO.WW.Y.0004.200110T2200Z-200111T2200Z/ Lower Hells Canyon/Salmon River Region- 302 AM PST Fri Jan 10 2020 ...WINTER WEATHER ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO 2 PM PST SATURDAY... * WHAT...Snow expected. Total snow accumulations of 4 to 6 inches over Whitebird Grade. Lower elevations can expect 1 to 3 inches. Winds gusting as high as 40 mph over Whitebird Grade. * WHERE...Lower Hells Canyon/Salmon River Region. * WHEN...From 2 PM this afternoon to 2 PM PST Saturday. * IMPACTS...Travel could be affected. Blowing snow over Whitebird Grade could significantly reduce visibility. 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. && $$ MTZ002-043-111115- /O.NEW.KMSO.WW.Y.0004.200111T0000Z-200112T1200Z/ West Glacier Region-Potomac/Seeley Lake Region- 402 AM MST Fri Jan 10 2020 ...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 5 AM MST SUNDAY... * WHAT...Snow expected. Total snow accumulations of 3 to 6 inches in the valleys, with 6 to 10 inches possible over Marias Pass. Winds gusting up to 35 mph over Marias Pass. * WHERE...Bad Rock Canyon, Essex, Highway 83 Bigfork to Swan Lake, Marias Pass, Polebridge, Highway 200 Bonner to Greenough, Highway 83 Seeley Lake to Condon, and I-90 East Missoula to Bearmouth. * WHEN...From 5 PM this afternoon to 5 AM MST Sunday. * IMPACTS...Travel could be affected. Blowing snow could significantly reduce visibility over Marias Pass. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ MTZ003-111115- /O.NEW.KMSO.WW.Y.0004.200111T0000Z-200111T1600Z/ Flathead/Mission Valleys- 402 AM MST Fri Jan 10 2020 ...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 9 AM MST SATURDAY... * WHAT...Snow expected. Total snow accumulations of 2 to 4 inches in the Flathead valley. A trace to 2 inches for the Mission valley. * WHERE...Flathead Lake, Flathead Valley, Mission Valley, and Polson. * WHEN...From 5 PM this afternoon to 9 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. && $$ MTZ006-111115- /O.NEW.KMSO.WW.Y.0004.200111T0000Z-200111T2200Z/ Bitterroot/Sapphire Mountains- 402 AM MST Fri Jan 10 2020 ...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 3 PM MST SATURDAY... * WHAT...Snow expected. Total snow accumulations of 6 to 12 inches over Lolo and Lost Trail Passes. * WHERE...Bitterroot/Sapphire Mountains. * WHEN...From 5 PM this afternoon to 3 PM MST Saturday. * IMPACTS...Travel could be affected. Patchy blowing snow could significantly reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$
5 follow-up statements
801 WWUS45 KMSO 102034 WSWMSO URGENT - WINTER WEATHER MESSAGE National Weather Service Missoula MT 134 PM MST Fri Jan 10 2020 MTZ001-112045- /O.NEW.KMSO.WS.A.0002.200112T1900Z-200113T1800Z/ /O.CON.KMSO.WS.W.0003.200110T2200Z-200111T2200Z/ Kootenai/Cabinet Region- 134 PM MST Fri Jan 10 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 PM MST SATURDAY... ...WINTER STORM WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY MORNING... * WHAT...For the Winter Storm Warning, heavy snow expected. Total snow accumulations of 5 to 10 inches. The highest totals are expected near the Idaho border along Highway 56 Bull Lake Road, Highway 2 from Troy to the Idaho border, Yaak and vicinity, and along Highway 93 from Olney to Stryker. Other valleys will see 2 to 5 inches. For the Winter Storm Watch, heavy snow possible. Total snow accumulations of 8 to 14 inches possible. * WHERE...Kootenai/Cabinet Region * WHEN...For the Winter Storm Warning, until 3 PM MST Saturday. For the Winter Storm Watch, from Sunday afternoon through Monday morning. * IMPACTS...Travel could be very difficult to impossible. For Sunday night and Monday, patchy blowing snow could significantly reduce visibility. Cold wind chills as low as 25 below zero could cause frostbite on exposed skin in as little as 30 minutes. 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. && $$ MTZ004-112045- /O.NEW.KMSO.WS.A.0002.200112T1900Z-200113T1800Z/ /O.CON.KMSO.WS.W.0003.200110T2200Z-200111T2200Z/ Lower Clark Fork Region- 134 PM MST Fri Jan 10 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 PM MST SATURDAY... ...WINTER STORM WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY MORNING... * WHAT...For the Winter Storm Warning, heavy snow expected. Total valley snow accumulations of 5 to 10 inches with 16 to 24 inches over Lookout Pass. The highest valley accumulations are expected near the Idaho border along Highway 200 from Thompson Falls to Heron and along Interstate 90 from Saint Regis to Lookout Pass. Locations further east can expect 2 to 5 inches. For the Winter Storm Watch, heavy snow possible. Total snow accumulations of 5 to 14 inches possible. * WHERE...Evaro Hill, Highway 200 west of Plains, and I-90 west of Frenchtown. * WHEN...For the Winter Storm Warning, until 3 PM MST Saturday. For the Winter Storm Watch, from Sunday afternoon through Monday morning. * IMPACTS...Travel could be very difficult to impossible. For Sunday into Monday, patchy blowing snow could significantly reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IDZ005-006-112045- /O.NEW.KMSO.WS.A.0002.200112T2000Z-200113T1800Z/ /O.CON.KMSO.WS.W.0003.200110T2200Z-200111T2200Z/ Northern Clearwater Mountains-Southern Clearwater Mountains- 1234 PM PST Fri Jan 10 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 2 PM PST SATURDAY... ...WINTER STORM WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY MORNING... * WHAT...For the Winter Storm Warning, heavy snow expected. Total snow accumulations of 7 to 14 inches. For the Winter Storm Watch, heavy snow possible. Total snow accumulations of 10 to 16 inches possible. * WHERE...Elk River, Highway 11 Pierce to Headquarters, Pierce, Dixie, Elk City, and Highway 12 Lowell to Lolo Pass. * WHEN...For the Winter Storm Warning, until 2 PM PST Saturday. For the Winter Storm Watch, from Sunday afternoon through Monday morning. * IMPACTS...Travel could be very difficult to impossible. 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. && $$ IDZ007-110800- /O.CON.KMSO.WS.W.0003.200110T2200Z-200111T0800Z/ Orofino/Grangeville Region- 1234 PM PST Fri Jan 10 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT PST TONIGHT... * WHAT...Heavy snow expected. Blowing snow expected on the Camas Prairie. Total snow accumulations of 2 to 5 inches. Winds could gust up to 55 mph near Grangeville. * WHERE...Camas Prairie, Grangeville and vicinity, and Greer Grade. * WHEN...From 2 PM this afternoon to midnight PST tonight. * IMPACTS...Travel could be difficult to impossible on the Camas Prairie. Blowing snow could significantly reduce visibility on the Camas Prairie and over Whitebird Grade. Strong cross winds will create hazardous driving conditions for high profile vehicles on Highway 95 south and west of Grangeville. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IDZ009-112045- /O.EXB.KMSO.WW.Y.0004.200111T0300Z-200111T2200Z/ Western Lemhi County- 134 PM MST Fri Jan 10 2020 ...WINTER WEATHER ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 3 PM MST SATURDAY... * WHAT...Snow expected. Total snow accumulations of 3 to 5 inches. * WHERE...Western Lemhi County. * WHEN...From 8 PM this evening to 3 PM 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. && $$ IDZ010-112045- /O.EXB.KMSO.WW.Y.0004.200111T0300Z-200111T2200Z/ Eastern Lemhi County- 134 PM MST Fri Jan 10 2020 ...WINTER WEATHER ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 3 PM MST SATURDAY... * WHAT...Snow expected. Total snow accumulations of 1 to 3 inches. 4 to 8 inches expected along Highway 93 between North Fork and Lost Trail Pass. * WHERE...Bannock Pass, Highway 28 Tendoy to Lone Pine, Highway 93 Lost Trail Pass to Gibbonsville, Lemhi Pass, and Salmon. * WHEN...From 8 PM this evening to 3 PM MST Saturday. * IMPACTS...Travel could be affected. Patchy blowing snow could significantly reduce visibility for areas along Highway 28 from Lemhi to Gilmore Summit. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ MTZ002-112045- /O.NEW.KMSO.WS.A.0002.200112T1800Z-200113T1800Z/ /O.CON.KMSO.WW.Y.0004.200111T0000Z-200112T1200Z/ West Glacier Region- 134 PM MST Fri Jan 10 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 5 AM MST SUNDAY... ...WINTER STORM WATCH IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY MORNING... * WHAT...For the Winter Weather Advisory, snow expected. Total snow accumulations of 3 to 6 inches in the valleys, with 6 to 10 inches possible over Marias Pass. For the Winter Storm Watch, blizzard conditions possible. Total snow accumulations of 8 to 15 inches possible. * WHERE...Bad Rock Canyon, Essex, Highway 83 Bigfork to Swan Lake, Marias Pass, and Polebridge. * WHEN...For the Winter Weather Advisory, from 5 PM this afternoon to 5 AM MST Sunday. For the Winter Storm Watch, from Sunday morning through Monday morning. * IMPACTS...Travel could be very difficult to impossible. For Sunday and Monday, areas of blowing snow could significantly reduce visibility. Dangerously cold wind chills as low as 50 below zero could cause frostbite on exposed skin in as little as 10 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Prepare for possible blizzard conditions. Continue to 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. && $$ MTZ003-112045- /O.NEW.KMSO.WS.A.0002.200112T1900Z-200113T1800Z/ /O.CON.KMSO.WW.Y.0004.200111T0000Z-200111T1600Z/ Flathead/Mission Valleys- 134 PM MST Fri Jan 10 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 9 AM MST SATURDAY... ...WINTER STORM WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY MORNING... * WHAT...For the Winter Weather Advisory, snow expected. Total snow accumulations of 2 to 4 inches in the Flathead valley. A trace to 2 inches for the Mission valley. For the Winter Storm Watch, heavy snow possible. Total snow accumulations of 5 to 8 inches possible. * WHERE...Flathead Lake, Flathead Valley, Mission Valley, and Polson. * WHEN...For the Winter Weather Advisory, from 5 PM this afternoon to 9 AM MST Saturday. For the Winter Storm Watch, from Sunday afternoon through Monday morning. * IMPACTS...Travel could be very difficult to impossible. The cold wind chills as low as 20 below zero could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Monitor the latest forecasts for updates on this situation. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IDZ008-112045- /O.CON.KMSO.WW.Y.0004.200110T2200Z-200111T2200Z/ Lower Hells Canyon/Salmon River Region- 1234 PM PST Fri Jan 10 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 2 PM PST SATURDAY... * WHAT...Snow expected. Total snow accumulations of 4 to 6 inches over Whitebird Grade. Lower elevations can expect 1 to 3 inches. Winds gusting as high as 40 mph over Whitebird Grade. * WHERE...Lower Hells Canyon/Salmon River Region. * WHEN...From 2 PM this afternoon to 2 PM PST Saturday. * IMPACTS...Travel could be affected. Blowing snow over Whitebird Grade could significantly reduce visibility. 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. && $$ MTZ043-112045- /O.CON.KMSO.WW.Y.0004.200111T0000Z-200112T1200Z/ Potomac/Seeley Lake Region- 134 PM MST Fri Jan 10 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 5 AM MST SUNDAY... * WHAT...Snow expected. Total snowfall accumulations of 3 to 7 inches. * WHERE...Highway 200 Bonner to Greenough, Highway 83 Seeley Lake to Condon, and I-90 East Missoula to Bearmouth. * WHEN...From 5 PM this afternoon to 5 AM MST Sunday. * IMPACTS...Travel could be affected. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ MTZ006-112045- /O.CON.KMSO.WW.Y.0004.200111T0000Z-200111T2200Z/ Bitterroot/Sapphire Mountains- 134 PM MST Fri Jan 10 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 3 PM MST SATURDAY... * WHAT...Snow expected. Total snowfall accumulations of one to two feet for Lolo Pass and Bitterroot Mountains. Total snowfall accumulations of 6 to 12 inches for Lost Trail Pass and the Sapphire Mountains. * WHERE...Bitterroot/Sapphire Mountains. * WHEN...From 5 PM this afternoon to 3 PM MST Saturday. * IMPACTS...Travel could be affected. Patchy blowing snow could significantly reduce visibility. 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. && $$
545 WWUS45 KMSO 110246 WSWMSO URGENT - WINTER WEATHER MESSAGE National Weather Service Missoula MT 746 PM MST Fri Jan 10 2020 MTZ001-120300- /O.CON.KMSO.WS.W.0003.000000T0000Z-200111T2200Z/ /O.CON.KMSO.WS.A.0002.200112T1900Z-200113T1800Z/ Kootenai/Cabinet Region- 746 PM MST Fri Jan 10 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 PM MST SATURDAY... ...WINTER STORM WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY MORNING... * WHAT...For the Winter Storm Warning, heavy snow expected. Total snow accumulations of 5 to 10 inches. The highest totals are expected near the Idaho border along Highway 56 Bull Lake Road, Highway 2 from Troy to the Idaho border, Yaak and vicinity, and along Highway 93 from Olney to Stryker. Other valleys will see 2 to 5 inches. For the Winter Storm Watch, heavy snow possible. Total snow accumulations of 8 to 14 inches possible. * WHERE...Highway 2 Kalispell to Libby, Highway 37 Eureka to Libby, Highway 56 Bull Lake Road, and Highway 93 Eureka to Whitefish. * WHEN...For the Winter Storm Warning, until 3 PM MST Saturday. For the Winter Storm Watch, from Sunday afternoon through Monday morning. * IMPACTS...Travel could be very difficult to impossible. Patchy blowing snow could significantly reduce visibility. The cold wind chills as low as 25 below zero could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Monitor the latest forecasts for updates on this situation. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ MTZ004-120300- /O.CON.KMSO.WS.W.0003.000000T0000Z-200111T2200Z/ /O.CON.KMSO.WS.A.0002.200112T1900Z-200113T1800Z/ Lower Clark Fork Region- 746 PM MST Fri Jan 10 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 PM MST SATURDAY... ...WINTER STORM WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY MORNING... * WHAT...For the Winter Storm Warning, heavy snow expected. Total valley snow accumulations of 5 to 10 inches with 16 to 24 inches over Lookout Pass. The highest valley accumulations are expected near the Idaho border along Highway 200 from Thompson Falls to Heron and along Interstate 90 from Saint Regis to Lookout Pass. Locations further east can expect 2 to 5 inches. For the Winter Storm Watch, heavy snow possible. Total snow accumulations of 5 to 14 inches possible. * WHERE...Evaro Hill, Highway 200 Thompson Falls to Plains, Highway 200 Trout Creek to Heron, and I-90 Lookout Pass to Haugan. * WHEN...For the Winter Storm Warning, until 3 PM MST Saturday. For the Winter Storm Watch, from Sunday afternoon through Monday morning. * IMPACTS...Travel could be very difficult to impossible. Patchy blowing snow could significantly reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. 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. && $$ IDZ005-006-120300- /O.CON.KMSO.WS.W.0003.000000T0000Z-200111T2200Z/ /O.CON.KMSO.WS.A.0002.200112T2000Z-200113T1800Z/ Northern Clearwater Mountains-Southern Clearwater Mountains- 646 PM PST Fri Jan 10 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 2 PM PST SATURDAY... ...WINTER STORM WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY MORNING... * WHAT...For the Winter Storm Warning, heavy snow expected. Total snow accumulations of 7 to 14 inches. For the Winter Storm Watch, heavy snow possible. Total snow accumulations of 10 to 16 inches possible. * WHERE...Elk River, Highway 11 Pierce to Headquarters, Pierce, Dixie, Elk City, and Highway 12 Lowell to Lolo Pass. * WHEN...For the Winter Storm Warning, until 2 PM PST Saturday. For the Winter Storm Watch, from Sunday afternoon through Monday morning. * IMPACTS...Travel could be very difficult to impossible. Patchy blowing snow could significantly reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Monitor the latest forecasts for updates on this situation. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IDZ007-110800- /O.CON.KMSO.WS.W.0003.000000T0000Z-200111T0800Z/ Orofino/Grangeville Region- 646 PM PST Fri Jan 10 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT PST TONIGHT... * WHAT...Heavy snow expected. Blowing snow expected on the Camas Prairie. Total snow accumulations of 2 to 5 inches. Winds could gust up to 55 mph near Grangeville. * WHERE...Camas Prairie, Grangeville and vicinity, and Greer Grade. * WHEN...From 2 PM this afternoon to midnight PST tonight. * IMPACTS...Travel could be affected. Patchy blowing snow could significantly reduce visibility. 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. && $$ MTZ005-111600- /O.EXA.KMSO.WW.Y.0004.000000T0000Z-200111T1600Z/ Missoula/Bitterroot Valleys- 746 PM MST Fri Jan 10 2020 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 9 AM MST SATURDAY... * WHAT...Snow. Snow accumulations of up to two inches. Gusty easterly winds will also produce periods of blowing snow lowering visibility to 1 mile or less. * WHERE...Missoula/Bitterroot Valleys. * WHEN...For the Winter Weather Advisory, from 5 PM this afternoon to 9 AM MST Saturday. * IMPACTS...Travel could be affected. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ MTZ002-120300- /O.CON.KMSO.WW.Y.0004.000000T0000Z-200112T1200Z/ /O.CON.KMSO.WS.A.0002.200112T1800Z-200113T1800Z/ West Glacier Region- 746 PM MST Fri Jan 10 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY... ...WINTER STORM WATCH REMAINS IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY MORNING... * WHAT...For the Winter Weather Advisory, snow expected. Total snow accumulations of 3 to 6 inches in the valleys, with 6 to 10 inches possible over Marias Pass. For the Winter Storm Watch, blizzard conditions possible. Total snow accumulations of 8 to 15 inches possible. * WHERE...Bad Rock Canyon, Essex, Highway 83 Bigfork to Swan Lake, Marias Pass, and Polebridge. * WHEN...For the Winter Weather Advisory, from 5 PM this afternoon to 5 AM MST Sunday. For the Winter Storm Watch, from Sunday morning through Monday morning. * IMPACTS...Travel could be very difficult to impossible. Areas of blowing snow could significantly reduce visibility. The dangerously cold wind chills as low as 40 below zero could cause frostbite on exposed skin in as little as 10 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Prepare for possible blizzard conditions. Continue to 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. && $$ MTZ003-120300- /O.CON.KMSO.WW.Y.0004.000000T0000Z-200111T1600Z/ /O.CON.KMSO.WS.A.0002.200112T1900Z-200113T1800Z/ Flathead/Mission Valleys- 746 PM MST Fri Jan 10 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM MST SATURDAY... ...WINTER STORM WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY MORNING... * WHAT...For the Winter Weather Advisory, snow expected. Total snow accumulations of 2 to 4 inches in the Flathead valley. A trace to 2 inches for the Mission valley. For the Winter Storm Watch, heavy snow possible and blowing snow expected. Total snow accumulations of 5 to 8 inches possible. * WHERE...Flathead Lake, Flathead Valley, Mission Valley, and Polson. * WHEN...For the Winter Weather Advisory, from 5 PM this afternoon to 9 AM MST Saturday. For the Winter Storm Watch, from Sunday afternoon through Monday morning. * IMPACTS...Travel could be very difficult to impossible. The cold wind chills as low as 20 below zero could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Monitor the latest forecasts for updates on this situation. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IDZ008-112200- /O.CON.KMSO.WW.Y.0004.000000T0000Z-200111T2200Z/ Lower Hells Canyon/Salmon River Region- 646 PM PST Fri Jan 10 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 2 PM PST SATURDAY... * WHAT...Snow expected. Total snow accumulations of 4 to 6 inches over Whitebird Grade. Lower elevations can expect 1 to 3 inches. Winds gusting as high as 40 mph over Whitebird Grade. * WHERE...Lower Hells Canyon/Salmon River Region. * WHEN...From 2 PM this afternoon to 2 PM PST Saturday. * IMPACTS...Travel could be affected. Patchy blowing snow could significantly reduce visibility. 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. && $$ MTZ043-120300- /O.CON.KMSO.WW.Y.0004.000000T0000Z-200112T1200Z/ Potomac/Seeley Lake Region- 746 PM MST Fri Jan 10 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY... * WHAT...Snow expected. Total snowfall accumulations of 3 to 7 inches. * WHERE...Highway 200 Bonner to Greenough, Highway 83 Seeley Lake to Condon, and I-90 East Missoula to Bearmouth. * WHEN...From 5 PM this afternoon to 5 AM MST Sunday. * IMPACTS...Travel could be very difficult to impossible. Patchy blowing snow could significantly reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ MTZ006-112200- /O.CON.KMSO.WW.Y.0004.000000T0000Z-200111T2200Z/ Bitterroot/Sapphire Mountains- 746 PM MST Fri Jan 10 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM MST SATURDAY... * WHAT...Snow expected. Total snowfall accumulations of one to two feet for Lolo Pass and Bitterroot Mountains. Total snowfall accumulations of 6 to 12 inches for Lost Trail Pass and the Sapphire Mountains. * WHERE...Bitterroot/Sapphire Mountains. * WHEN...From 5 PM this afternoon to 3 PM MST Saturday. * IMPACTS...Travel could be affected. Patchy blowing snow could significantly reduce visibility. 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. && $$ IDZ009-112200- /O.CON.KMSO.WW.Y.0004.200111T0300Z-200111T2200Z/ Western Lemhi County- 746 PM MST Fri Jan 10 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM MST SATURDAY... * WHAT...Snow expected. Total snow accumulations of 3 to 5 inches. * WHERE...Western Lemhi County. * WHEN...From 8 PM this evening to 3 PM MST Saturday. * IMPACTS...Travel could be affected. Patchy blowing snow could significantly reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IDZ010-112200- /O.CON.KMSO.WW.Y.0004.200111T0300Z-200111T2200Z/ Eastern Lemhi County- 746 PM MST Fri Jan 10 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM MST SATURDAY... * WHAT...Snow expected. Total snow accumulations of 1 to 3 inches. 4 to 8 inches expected along Highway 93 between North Fork and Lost Trail Pass. * WHERE...Bannock Pass, Highway 28 Tendoy to Lone Pine, Highway 93 Lost Trail Pass to Gibbonsville, Lemhi Pass, and Salmon. * WHEN...From 8 PM this evening to 3 PM MST Saturday. * IMPACTS...Travel could be very difficult. Patchy blowing snow could significantly reduce visibility. The cold wind chills as low as 15 below zero could result in hypothermia if precautions are not taken. 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. && $$
318 WWUS45 KMSO 110733 WSWMSO URGENT - WINTER WEATHER MESSAGE National Weather Service Missoula MT 1233 AM MST Sat Jan 11 2020 IDZ007-110845- /O.EXP.KMSO.WS.W.0003.000000T0000Z-200111T0800Z/ Orofino/Grangeville Region- 1133 PM PST Fri Jan 10 2020 ...WINTER STORM WARNING WILL EXPIRE AT MIDNIGHT PST TONIGHT... Most of the snow has ended. Breezy south winds up to 40 mph may still be possible through the morning hours, creating patchy areas of blowing snow. $$ MTZ001-120745- /O.CON.KMSO.WS.W.0003.000000T0000Z-200111T2200Z/ /O.CON.KMSO.WS.A.0002.200112T1900Z-200113T1800Z/ Kootenai/Cabinet Region- 1233 AM MST Sat Jan 11 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 PM MST THIS AFTERNOON... ...WINTER STORM WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY MORNING... * WHAT...For the Winter Storm Warning, heavy snow expected. Total snow accumulations of 5 to 10 inches. The highest totals are expected near the Idaho border along Highway 56 Bull Lake Road, Highway 2 from Troy to the Idaho border, Yaak and vicinity, and along Highway 93 from Olney to Stryker. Other valleys will see 2 to 5 inches. For the Winter Storm Watch, heavy snow possible. Total snow accumulations of 8 to 14 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 Storm Warning, until 3 PM MST Saturday. For the Winter Storm Watch, from Sunday afternoon through Monday morning. * IMPACTS...Travel could be very difficult to impossible. Patchy blowing snow could significantly reduce visibility. 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... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. 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. && $$ MTZ004-120745- /O.CON.KMSO.WS.W.0003.000000T0000Z-200111T2200Z/ /O.CON.KMSO.WS.A.0002.200112T1900Z-200113T1800Z/ Lower Clark Fork Region- 1233 AM MST Sat Jan 11 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 PM MST THIS AFTERNOON... ...WINTER STORM WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY MORNING... * WHAT...For the Winter Storm Warning, heavy snow expected. Total valley snow accumulations of 5 to 10 inches with 16 to 24 inches over Lookout Pass. The highest valley accumulations are expected near the Idaho border along Highway 200 from Thompson Falls to Heron and along Interstate 90 from Saint Regis to Lookout Pass. Locations further east can expect 2 to 5 inches. For the Winter Storm Watch, heavy snow possible. Total snow accumulations of 5 to 14 inches possible. * WHERE...Evaro Hill, Highway 200 Thompson Falls to Plains, Highway 200 Trout Creek to Heron, and I-90 Lookout Pass to Haugan. * WHEN...For the Winter Storm Warning, until 3 PM MST Saturday. For the Winter Storm Watch, from Sunday afternoon through Monday morning. * IMPACTS...Travel could be very difficult to impossible. Patchy blowing snow could significantly reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Monitor the latest forecasts for updates on this situation. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IDZ005-006-120745- /O.CON.KMSO.WS.W.0003.000000T0000Z-200111T2200Z/ /O.CON.KMSO.WS.A.0002.200112T2000Z-200113T1800Z/ Northern Clearwater Mountains-Southern Clearwater Mountains- 1133 PM PST Fri Jan 10 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 2 PM PST SATURDAY... ...WINTER STORM WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY MORNING... * WHAT...For the Winter Storm Warning, heavy snow expected. Total snow accumulations of 7 to 14 inches. For the Winter Storm Watch, heavy snow possible. Total snow accumulations of 10 to 16 inches possible. * WHERE...Elk River, Highway 11 Pierce to Headquarters, Pierce, Dixie, Elk City, and Highway 12 Lowell to Lolo Pass. * WHEN...For the Winter Storm Warning, until 2 PM PST Saturday. For the Winter Storm Watch, from Sunday afternoon through Monday morning. * IMPACTS...Travel could be very difficult to impossible. Patchy blowing snow could significantly reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. 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. && $$ MTZ002-120745- /O.CON.KMSO.WW.Y.0004.000000T0000Z-200112T1200Z/ /O.CON.KMSO.WS.A.0002.200112T1800Z-200113T1800Z/ West Glacier Region- 1233 AM MST Sat Jan 11 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY... ...WINTER STORM WATCH REMAINS IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY MORNING... * WHAT...For the Winter Weather Advisory, snow expected. Total snow accumulations of 3 to 6 inches in the valleys, with 6 to 10 inches possible over Marias Pass. For the Winter Storm Watch, blizzard conditions possible. Total snow accumulations of 8 to 15 inches possible. * WHERE...Bad Rock Canyon, Essex, Highway 83 Bigfork to Swan Lake, Marias Pass, and Polebridge. * WHEN...For the Winter Weather Advisory, from 5 PM this afternoon to 5 AM MST Sunday. For the Winter Storm Watch, from Sunday morning through Monday morning. * IMPACTS...Travel could be very difficult to impossible. Areas of blowing snow could significantly reduce visibility. The dangerously cold wind chills as low as 40 below zero could cause frostbite on exposed skin in as little as 10 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Prepare for possible blizzard conditions. Continue to monitor the latest forecasts for updates on this situation. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ MTZ003-120745- /O.CON.KMSO.WW.Y.0004.000000T0000Z-200111T1600Z/ /O.CON.KMSO.WS.A.0002.200112T1900Z-200113T1800Z/ Flathead/Mission Valleys- 1233 AM MST Sat Jan 11 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM MST THIS MORNING... ...WINTER STORM WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY MORNING... * WHAT...For the Winter Weather Advisory, snow expected. Total snow accumulations of 2 to 4 inches in the Flathead valley. A trace to 2 inches for the Mission valley. For the Winter Storm Watch, heavy snow possible and blowing snow expected. Total snow accumulations of 5 to 8 inches possible. * WHERE...Flathead Lake, Flathead Valley, Mission Valley, and Polson. * WHEN...For the Winter Weather Advisory, from 5 PM this afternoon to 9 AM MST Saturday. For the Winter Storm Watch, from Sunday afternoon through Monday morning. * IMPACTS...Travel could be very difficult. The cold wind chills as low as 20 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. && $$ IDZ008-112200- /O.CON.KMSO.WW.Y.0004.000000T0000Z-200111T2200Z/ Lower Hells Canyon/Salmon River Region- 1133 PM PST Fri Jan 10 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 2 PM PST SATURDAY... * WHAT...Snow expected. Total snow accumulations of 4 to 6 inches over Whitebird Grade. Lower elevations can expect 1 to 3 inches. Winds gusting as high as 40 mph over Whitebird Grade. * WHERE...Lower Hells Canyon/Salmon River Region. * WHEN...From 2 PM this afternoon to 2 PM PST Saturday. * IMPACTS...Travel could be affected. Patchy blowing snow could significantly reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ MTZ043-120745- /O.CON.KMSO.WW.Y.0004.000000T0000Z-200112T1200Z/ Potomac/Seeley Lake Region- 1233 AM MST Sat Jan 11 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY... * WHAT...Snow expected. Total snowfall accumulations of 3 to 7 inches. * WHERE...Highway 200 Bonner to Greenough, Highway 83 Seeley Lake to Condon, and I-90 East Missoula to Bearmouth. * WHEN...From 5 PM this afternoon to 5 AM MST Sunday. * IMPACTS...Travel could be very difficult. Patchy blowing snow could significantly reduce visibility. 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. && $$ MTZ006-112200- /O.CON.KMSO.WW.Y.0004.000000T0000Z-200111T2200Z/ Bitterroot/Sapphire Mountains- 1233 AM MST Sat Jan 11 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM MST THIS AFTERNOON... * WHAT...Snow expected. Total snowfall accumulations of one to two feet for Lolo Pass and Bitterroot Mountains. Total snowfall accumulations of 6 to 12 inches for Lost Trail Pass and the Sapphire Mountains. * WHERE...Bitterroot/Sapphire Mountains. * WHEN...From 5 PM this afternoon to 3 PM MST Saturday. * IMPACTS...Travel could be affected. Patchy blowing snow could significantly reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IDZ009-112200- /O.CON.KMSO.WW.Y.0004.000000T0000Z-200111T2200Z/ Western Lemhi County- 1233 AM MST Sat Jan 11 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM MST THIS AFTERNOON... * WHAT...Snow expected. Total snow accumulations of 3 to 5 inches. * WHERE...Western Lemhi County. * WHEN...From 8 PM this evening to 3 PM MST Saturday. * IMPACTS...Travel could be affected. Patchy blowing snow could significantly reduce visibility. 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. && $$ IDZ010-112200- /O.CON.KMSO.WW.Y.0004.000000T0000Z-200111T2200Z/ Eastern Lemhi County- 1233 AM MST Sat Jan 11 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM MST THIS AFTERNOON... * WHAT...Snow expected. Total snow accumulations of 1 to 3 inches. 4 to 8 inches expected along Highway 93 between North Fork and Lost Trail Pass. * WHERE...Bannock Pass, Highway 28 Tendoy to Lone Pine, Highway 93 Lost Trail Pass to Gibbonsville, Lemhi Pass, and Salmon. * WHEN...From 8 PM this evening to 3 PM MST Saturday. * IMPACTS...Travel could be affected. Patchy blowing snow could significantly reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ MTZ005-111600- /O.CON.KMSO.WW.Y.0004.000000T0000Z-200111T1600Z/ Missoula/Bitterroot Valleys- 1233 AM MST Sat Jan 11 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM MST THIS MORNING... * WHAT...Snow. Snow accumulations of up to two inches. Gusty easterly winds will also produce periods of blowing snow lowering visibility to 1 mile or less. * WHERE...Missoula/Bitterroot Valleys. * WHEN...For the Winter Weather Advisory, from 5 PM this afternoon to 9 AM MST Saturday. * IMPACTS...Travel could be affected. Patchy blowing snow could significantly reduce visibility. 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. && $$
231 WWUS45 KMSO 111554 WSWMSO URGENT - WINTER WEATHER MESSAGE National Weather Service Missoula MT 854 AM MST Sat Jan 11 2020 MTZ003-121600- /O.EXP.KMSO.WW.Y.0004.000000T0000Z-200111T1600Z/ /O.CON.KMSO.WS.A.0002.200112T1900Z-200113T1800Z/ Flathead/Mission Valleys- 854 AM MST Sat Jan 11 2020 ...WINTER STORM WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY MORNING... * WHAT...Heavy snow possible. Total snow accumulations of 5 to 8 inches possible. Wind gusts of 35 to 45 mph are possible in the Flathead Valley, which could cause very low visibility and drifting snow. * WHERE...Flathead Lake, Flathead Valley, Mission Valley, and Polson. * WHEN...For the Winter Storm Watch, from Sunday afternoon through Monday morning. * IMPACTS...Travel could be very difficult. The cold wind chills as low as 20 below zero could cause frostbite on exposed skin in as little as 30 minutes. Areas of blowing snow could significantly reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. && $$ MTZ005-111700- /O.EXP.KMSO.WW.Y.0004.000000T0000Z-200111T1600Z/ Missoula/Bitterroot Valleys- 854 AM MST Sat Jan 11 2020 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 9 AM MST THIS MORNING... $$ MTZ001-121600- /O.CON.KMSO.WS.W.0003.000000T0000Z-200111T2200Z/ /O.CON.KMSO.WS.A.0002.200112T1900Z-200113T1800Z/ Kootenai/Cabinet Region- 854 AM MST Sat Jan 11 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 PM MST THIS AFTERNOON... ...WINTER STORM WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY MORNING... * WHAT...For the Winter Storm Warning, heavy snow expected. Total snow accumulations of 5 to 10 inches. The highest totals are expected near the Idaho border along Highway 56 Bull Lake Road, Highway 2 from Troy to the Idaho border, Yaak and vicinity, and along Highway 93 from Olney to Stryker. Other valleys will see 2 to 5 inches. For the Winter Storm Watch, heavy snow possible. Total snow accumulations of 8 to 14 inches possible. * WHERE...Highway 2 Kalispell to Libby, Highway 37 Eureka to Libby, Highway 56 Bull Lake Road, and Highway 93 Eureka to Whitefish. * WHEN...For the Winter Storm Warning, until 3 PM MST Saturday. For the Winter Storm Watch, from Sunday afternoon through Monday morning. * IMPACTS...Travel could be very difficult to impossible. Patchy blowing snow could significantly reduce visibility. The cold wind chills as low as 25 below zero could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Monitor the latest forecasts for updates on this situation. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ MTZ004-121600- /O.CON.KMSO.WS.W.0003.000000T0000Z-200111T2200Z/ /O.CON.KMSO.WS.A.0002.200112T1900Z-200113T1800Z/ Lower Clark Fork Region- 854 AM MST Sat Jan 11 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 PM MST THIS AFTERNOON... ...WINTER STORM WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY MORNING... * WHAT...For the Winter Storm Warning, heavy snow expected. Total valley snow accumulations of 5 to 10 inches with 16 to 24 inches over Lookout Pass. The highest valley accumulations are expected near the Idaho border along Highway 200 from Thompson Falls to Heron and along Interstate 90 from Saint Regis to Lookout Pass. Locations further east can expect 2 to 5 inches. For the Winter Storm Watch, heavy snow possible. Total snow accumulations of 5 to 14 inches possible. * WHERE...Evaro Hill, Highway 200 Thompson Falls to Plains, Highway 200 Trout Creek to Heron, and I-90 Lookout Pass to Haugan. * WHEN...For the Winter Storm Warning, until 3 PM MST Saturday. For the Winter Storm Watch, from Sunday afternoon through Monday morning. * IMPACTS...Travel could be very difficult to impossible. Patchy blowing snow could significantly reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. 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. && $$ IDZ005-006-121600- /O.CON.KMSO.WS.W.0003.000000T0000Z-200111T2200Z/ /O.CON.KMSO.WS.A.0002.200112T2000Z-200113T1800Z/ Northern Clearwater Mountains-Southern Clearwater Mountains- 754 AM PST Sat Jan 11 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 2 PM PST THIS AFTERNOON... ...WINTER STORM WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY MORNING... * WHAT...For the Winter Storm Warning, heavy snow expected. Total snow accumulations of 7 to 14 inches. For the Winter Storm Watch, heavy snow possible. Total snow accumulations of 10 to 16 inches possible. * WHERE...Elk River, Highway 11 Pierce to Headquarters, Pierce, Dixie, Elk City, and Highway 12 Lowell to Lolo Pass. * WHEN...For the Winter Storm Warning, until 2 PM PST Saturday. For the Winter Storm Watch, from Sunday afternoon through Monday morning. * IMPACTS...Travel could be very difficult to impossible. Patchy blowing snow could significantly reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Monitor the latest forecasts for updates on this situation. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ MTZ002-121600- /O.CON.KMSO.WW.Y.0004.000000T0000Z-200112T1200Z/ /O.CON.KMSO.WS.A.0002.200112T1800Z-200113T1800Z/ West Glacier Region- 854 AM MST Sat Jan 11 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY... ...WINTER STORM WATCH REMAINS IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY MORNING... * WHAT...For the Winter Weather Advisory, snow expected. Total snow accumulations of 3 to 6 inches in the valleys, with 6 to 10 inches possible over Marias Pass. For the Winter Storm Watch, blizzard conditions possible. Total snow accumulations of 8 to 15 inches possible. * WHERE...Bad Rock Canyon, Essex, Highway 83 Bigfork to Swan Lake, Marias Pass, and Polebridge. * WHEN...For the Winter Weather Advisory, from 5 PM this afternoon to 5 AM MST Sunday. For the Winter Storm Watch, from Sunday morning through Monday morning. * IMPACTS...Travel could be very difficult to impossible. Areas of blowing snow could significantly reduce visibility. The dangerously cold wind chills as low as 40 below zero could cause frostbite on exposed skin in as little as 10 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Prepare for possible blizzard conditions. Continue to 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. && $$ IDZ008-112200- /O.CON.KMSO.WW.Y.0004.000000T0000Z-200111T2200Z/ Lower Hells Canyon/Salmon River Region- 754 AM PST Sat Jan 11 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 2 PM PST THIS AFTERNOON... * WHAT...Snow expected. Total snow accumulations of 4 to 6 inches over Whitebird Grade. Lower elevations can expect 1 to 3 inches. Winds gusting as high as 40 mph over Whitebird Grade. * WHERE...Lower Hells Canyon/Salmon River Region. * WHEN...From 2 PM this afternoon to 2 PM PST Saturday. * IMPACTS...Travel could be affected. Patchy blowing snow could significantly reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ MTZ043-121200- /O.CON.KMSO.WW.Y.0004.000000T0000Z-200112T1200Z/ Potomac/Seeley Lake Region- 854 AM MST Sat Jan 11 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY... * WHAT...Snow expected. Total snowfall accumulations of 3 to 7 inches. * WHERE...Highway 200 Bonner to Greenough, Highway 83 Seeley Lake to Condon, and I-90 East Missoula to Bearmouth. * WHEN...From 5 PM this afternoon to 5 AM MST Sunday. * IMPACTS...Travel could be very difficult. Patchy blowing snow could significantly reduce visibility. 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. && $$ MTZ006-112200- /O.CON.KMSO.WW.Y.0004.000000T0000Z-200111T2200Z/ Bitterroot/Sapphire Mountains- 854 AM MST Sat Jan 11 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM MST THIS AFTERNOON... * WHAT...Snow expected. Total snowfall accumulations of one to two feet for Lolo Pass and Bitterroot Mountains. Total snowfall accumulations of 6 to 12 inches for Lost Trail Pass and the Sapphire Mountains. * WHERE...Bitterroot/Sapphire Mountains. * WHEN...From 5 PM this afternoon to 3 PM MST Saturday. * IMPACTS...Travel could be affected. Patchy blowing snow could significantly reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IDZ009-112200- /O.CON.KMSO.WW.Y.0004.000000T0000Z-200111T2200Z/ Western Lemhi County- 854 AM MST Sat Jan 11 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM MST THIS AFTERNOON... * WHAT...Snow expected. Total snow accumulations of 3 to 5 inches. * WHERE...Western Lemhi County. * WHEN...From 8 PM this evening to 3 PM MST Saturday. * IMPACTS...Travel could be affected. Patchy blowing snow could significantly reduce visibility. 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. && $$ IDZ010-112200- /O.CON.KMSO.WW.Y.0004.000000T0000Z-200111T2200Z/ Eastern Lemhi County- 854 AM MST Sat Jan 11 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM MST THIS AFTERNOON... * WHAT...Snow expected. Total snow accumulations of 1 to 3 inches. 4 to 8 inches expected along Highway 93 between North Fork and Lost Trail Pass. * WHERE...Bannock Pass, Highway 28 Tendoy to Lone Pine, Highway 93 Lost Trail Pass to Gibbonsville, Lemhi Pass, and Salmon. * WHEN...From 8 PM this evening to 3 PM MST Saturday. * IMPACTS...Travel could be affected. Patchy blowing snow could significantly reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$
270 WWUS45 KMSO 112146 WSWMSO URGENT - WINTER WEATHER MESSAGE National Weather Service Missoula MT 246 PM MST Sat Jan 11 2020 MTZ004-122200- /O.CAN.KMSO.WS.W.0003.000000T0000Z-200111T2200Z/ /O.UPG.KMSO.WS.A.0002.200112T1900Z-200113T1800Z/ /O.NEW.KMSO.WS.W.0004.200112T1900Z-200113T1800Z/ /O.EXA.KMSO.WW.Y.0004.000000T0000Z-200112T1200Z/ Lower Clark Fork Region- 246 PM MST Sat Jan 11 2020 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 5 AM MST SUNDAY... ...WINTER STORM WARNING IN EFFECT FROM NOON SUNDAY TO 11 AM MST MONDAY... * WHAT...For the Winter Storm Warning, heavy snow expected. Total snow accumulations of 6 to 11 inches mainly west of Saint Regis and Thompson Falls, including Lookout Pass, and 3 to 5 inches elsewhere. For the Winter Weather Advisory, snow. Additional snow accumulations of around 2 inches and higher amounts of 3 to 5 inches over Lookout Pass. * WHERE...Evaro Hill, Highway 200 Thompson Falls to Plains, Highway 200 Trout Creek to Heron, and I-90 Lookout Pass to Haugan. * WHEN...For the Winter Storm Warning, from noon Sunday to 11 AM MST Monday. For the Winter Weather Advisory, until 5 AM MST Sunday. * IMPACTS...Travel could be very difficult to impossible Sunday afternoon through Sunday night. Patchy blowing snow could significantly reduce visibility. 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. && $$ IDZ005-122200- /O.CAN.KMSO.WS.W.0003.000000T0000Z-200111T2200Z/ /O.UPG.KMSO.WS.A.0002.200112T2000Z-200113T1800Z/ /O.NEW.KMSO.WS.W.0004.200112T1900Z-200113T1800Z/ /O.EXA.KMSO.WW.Y.0004.000000T0000Z-200112T1200Z/ Northern Clearwater Mountains- 146 PM PST Sat Jan 11 2020 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 4 AM PST SUNDAY... ...WINTER STORM WARNING IN EFFECT FROM 11 AM SUNDAY TO 10 AM PST MONDAY... * WHAT...For the Winter Storm Warning, heavy snow expected. Total snow accumulations of 9 to 13 inches. For the Winter Weather Advisory, snow. Additional snow accumulations of 5 to 8 inches. * WHERE...Elk River, Highway 11 Pierce to Headquarters, and Pierce. * WHEN...For the Winter Storm Warning, from 11 AM Sunday to 10 AM PST Monday. For the Winter Weather Advisory, until 4 AM PST Sunday. * IMPACTS...Travel could be very difficult to impossible Sunday afternoon through Sunday night. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ MTZ001-122200- /O.CAN.KMSO.WS.W.0003.000000T0000Z-200111T2200Z/ /O.UPG.KMSO.WS.A.0002.200112T1900Z-200113T1800Z/ /O.NEW.KMSO.WS.W.0004.200112T1900Z-200113T1800Z/ Kootenai/Cabinet Region- 246 PM MST Sat Jan 11 2020 ...WINTER STORM WARNING IN EFFECT FROM NOON SUNDAY TO 11 AM MST MONDAY... * WHAT...Heavy snow expected. Total snow accumulations of 8 to 13 inches along the Idaho and Canadian borders, and 5 to 8 inches elsewhere. * WHERE...Highway 2 Kalispell to Libby, Highway 37 Eureka to Libby, Highway 56 Bull Lake Road, and Highway 93 Eureka to Whitefish. * WHEN...From noon Sunday to 11 AM MST Monday. * IMPACTS...Travel could be very difficult to impossible. Patchy blowing snow could significantly reduce visibility. The cold wind chills as low as 20 below zero could cause frostbite on exposed skin in as little as 30 minutes. 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. && $$ IDZ006-122200- /O.CAN.KMSO.WS.W.0003.000000T0000Z-200111T2200Z/ /O.UPG.KMSO.WS.A.0002.200112T2000Z-200113T1800Z/ /O.EXB.KMSO.WW.Y.0004.000000T0000Z-200113T1800Z/ Southern Clearwater Mountains- 146 PM PST Sat Jan 11 2020 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 10 AM PST MONDAY... ...WINTER STORM WARNING IS CANCELLED... * WHAT...Snow. Additional snow accumulations of 3 to 5 inches tonight, and 4 to 7 inches Sunday afternoon through Sunday night. * WHERE...Dixie, Elk City, and Highway 12 Lowell to Lolo Pass. * WHEN...Until 10 AM PST Monday. * IMPACTS...Travel could be very difficult to impossible. Patchy blowing snow could significantly reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IDZ008>010-112300- /O.CAN.KMSO.WW.Y.0004.000000T0000Z-200111T2200Z/ Lower Hells Canyon/Salmon River Region-Western Lemhi County- Eastern Lemhi County- 246 PM MST Sat Jan 11 2020 /146 PM PST Sat Jan 11 2020/ ...WINTER WEATHER ADVISORY IS CANCELLED... $$ MTZ002-122200- /O.UPG.KMSO.WS.A.0002.200112T1800Z-200113T1800Z/ /O.NEW.KMSO.WS.W.0004.200112T1800Z-200113T1800Z/ /O.CON.KMSO.WW.Y.0004.000000T0000Z-200112T1200Z/ West Glacier Region- 246 PM MST Sat Jan 11 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY... ...WINTER STORM WARNING IN EFFECT FROM 11 AM SUNDAY TO 11 AM MST MONDAY... * WHAT...For the Winter Storm Warning, heavy snow expected. Total snow accumulations of 10 to 14 inches. Winds gusting as high as 35 mph. For the Winter Weather Advisory, snow. Additional snow accumulations of 4 to 7 inches. * WHERE...Bad Rock Canyon, Essex, Highway 83 Bigfork to Swan Lake, Marias Pass, and Polebridge. * WHEN...For the Winter Storm Warning, from 11 AM Sunday to 11 AM MST Monday. For the Winter Weather Advisory, until 5 AM MST Sunday. * IMPACTS...Travel could be very difficult to impossible. Areas of blowing snow could significantly reduce visibility. The dangerously cold wind chills as low as 40 below zero could cause frostbite on exposed skin in as little as 10 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ MTZ003-122200- /O.UPG.KMSO.WS.A.0002.200112T1900Z-200113T1800Z/ /O.NEW.KMSO.WS.W.0004.200112T1900Z-200113T1800Z/ Flathead/Mission Valleys- 246 PM MST Sat Jan 11 2020 ...WINTER STORM WARNING IN EFFECT FROM NOON SUNDAY TO 11 AM MST MONDAY... * WHAT...Heavy snow expected. Total snow accumulations of 7 to 9 inches and wind gusts 30 to 40 mph in the Flathead Valley, and 3 to 5 inches in the Mission Valley. * WHERE...Flathead Lake, Flathead Valley, Mission Valley, and Polson. * WHEN...From noon Sunday to 11 AM MST Monday. * IMPACTS...Travel could be very difficult. Areas of blowing snow could significantly reduce visibility. The cold wind chills as low as 15 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. && $$ MTZ006-122200- /O.EXT.KMSO.WW.Y.0004.000000T0000Z-200113T1800Z/ Bitterroot/Sapphire Mountains- 246 PM MST Sat Jan 11 2020 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 11 AM MST MONDAY... * WHAT...Snow. Additional snow accumulations of 2 to 5 inches tonight, and 6 to 10 inches Sunday afternoon through Sunday night. * WHERE...Bitterroot/Sapphire Mountains. * WHEN...Until 11 AM MST Monday. * IMPACTS...Travel could be very difficult. Patchy blowing snow could significantly reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ MTZ043-121200- /O.CON.KMSO.WW.Y.0004.000000T0000Z-200112T1200Z/ Potomac/Seeley Lake Region- 246 PM MST Sat Jan 11 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY... * WHAT...Snow. Additional snow accumulations of 2 to 5 inches. * WHERE...Highway 200 Bonner to Greenough, Highway 83 Seeley Lake to Condon, and I-90 East Missoula to Bearmouth. * WHEN...Until 5 AM MST Sunday. * IMPACTS...Travel could be affected. Patchy blowing snow could significantly reduce visibility. 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. && $$
What forecasters said that day
The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Missoula, MT wrote its last area forecast discussion before this winter storm warning went out at Jan 9, 2:27 PM MST, 13 hours 35 minutes earlier.
Area forecast discussion, Jan 9, 2:27 PM MST, 13 hours 35 minutes before
Area Forecast Discussion
National Weather Service Missoula MT
227 PM MST Thu Jan 9 2020
.DISCUSSION...Brief, yet vigorous snow showers will be present
across the Northern Rockies through late this evening. The impact
of these snow showers should be minimal to area travel, however
conditions on secondary roads could suddenly become slick. Snow
accumulations of a heavy dusting to a half inch will be common for
west central and southwest Montana. Also, periods of light snow
may provide several dustings of snow to the Flathead Valley and
surrounding areas. Otherwise, most snow will be present over high
terrain through tonight. Patchy valley freezing fog may develop
late tonight in the Kootenai River Country of northwest Montana.
A significant snow and wind event is anticipated to develop across
the Northern Rockies Friday evening through Saturday morning. For
much of north central Idaho, accumulating snow will occur, even at
the lowest elevation locations (e.g., Riggins, Orofino). Also, a
strong surface pressure gradient is expected to develop near
Grangeville and surrounding Camas Prairie on Friday, with snow and
blowing snow to follow. The combination of snow and wind (as well
as low visibility) will make for difficult travel. Heavy snow will
also occur along the Idaho-Montana border, including the I-90
corridor west of Missoula, Highway 200 corridor northwest of
Missoula, and Highway 2 near Libby and Troy. Side and back roads
may become impossible for travel due to snow accumulations up to
10 inches. Mountain passes, such as Lookout Pass, are to expected
to receive nearly one and a half feet of snow accumulation.
The next major weather system arrives late Sunday night and Monday
morning in northwest Montana. For weeks now, cold air has been
building up in northern Canada and Alaska. With the large scale
pattern finally starting to change, the cold will be released
southward and will arrive along the front range of the Northern
Rockies and the mountains of British Columbia Sunday. What happens
after that remains uncertain.
Ensemble model systems don't agree with each other well at all,
which really reduces our confidence in the details of the forecast
for this period. The upper level flow will be the determining
factor in how fast, how far west, and how much the cold air
affects our region. Meanwhile, that westerly flow will be carrying
enough moisture to cause snow. The main takeaways are:
* Confidence in the general forecast remains high, it will be
colder and snowy next week.
* Confidence in snow amounts is low, however, several inches in
the valleys of northwest Montana and over a foot in the
mountains of central Idaho and western Montana are possible.
* Strong north to northeast winds are typical with most of the
potential weather patterns, and it doesn't take much snow to
blow around. So blowing snow will be an impact in northwest
Montana Monday morning.
* Blizzard conditions are still possible Monday morning in
northwest Montana.
* Cold temperatures will follow the system and be at their
coldest of the season so far Tuesday and Wednesday mornings.
* Wide spread sub-zero temperatures are possible in northwest
Montana Tuesday or Wednesday morning.
Considering how mild of a winter the region has had so far, we
expect this system to be quite a shock to the region, with
possibly very dangerous blizzard conditions in northwest Montana.
Please stay tuned to the forecast this weekend as we zero in on
the details of the forecast.
&&
.AVIATION...
A brief, yet intense west-east oriented line of snow will move
across Northern Rockies air space through 10/0300Z, impacting
terminals south and east of KMSO, including KBTM. Ceiling and
visibility will drop temporarily and be accompanied by gusts to
25 knots from the northwest as the line of snow moves east-
southeast over time. Also through 10/0300Z, periods of light snow
will develop across northwest Montana, possibly impacting the
KGPI terminal with temporarily lowered ceiling and visibility,
however no expectation of increased wind gusts. Otherwise,
terrain obscurations will be present across the Northern Rockies
through 10/0900Z. Ceilings should increase throughout the region
thereafter through 10/1800Z. After 10/1800Z, clouds will increase
and ceilings lower, ahead of a significant widespread snow event
Friday night. There is a slight chance that freezing fog and low
stratus will develop tonight within northwest Montana valleys west
of KGPI.
&&
.MSO WATCHES/WARNINGS/ADVISORIES...
MT...Winter Storm Watch from Friday afternoon through Saturday
afternoon Kootenai/Cabinet Region.
Winter Storm Watch from Friday afternoon through Saturday
afternoon Lower Clark Fork Region.
ID...Winter Storm Watch from Friday afternoon through late Friday
night Lower Hells Canyon/Salmon River Region...
Orofino/Grangeville Region.
Winter Storm Watch from Friday afternoon through Saturday
afternoon Northern Clearwater Mountains...Southern
Clearwater Mountains.
&&The office that day
Everything else NWS Missoula, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 10, 4:02 AM MST | Winter Weather Advisory | MSO | Deer Lodge, Flathead, Granite, Lake, Mineral, Missoula and 4 more | 3 days |
| Jan 10, 1:34 PM MST | Winter Storm Watch | MSO | Flathead, Lake, Lincoln, Mineral, Missoula, Sanders | 25 hr |
Nearby
Winter Storm Warnings in Montana, 2020Winter Storm Warnings in Idaho, 2020Every winter storm warning in 2020
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.