Alert archive / Montana / Blizzard Warnings in 2018
Blizzard Warning 2, NWS Missoula, MT
NWS Missoula, MT issued this blizzard warning at Feb 17, 2018, 6:57 PM MST for Flathead County, Lake County, Sanders County, Montana. It was in force for 10 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
- Feb 17, 2018, 6:57 PM MST (01:57 UTC)
- Expired
- Feb 18, 2018, 4:54 AM MST
- In force
- 10 hr
- Issued by
- NWS Missoula, MT
Counties Flathead County, MT, Lake County, MT, Sanders County, MT
The radar
The Missoula radar (KMSX), 98 km from the middle of the area, began a volume at 01:54 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 |
|---|---|---|---|
| Feb 17, 7:48 PM MST | HEAVY SNOW 13 | 3 Ssw Marion, MT | SNOW TOTAL SINCE MIDNIGHT. FROM 6 TO 8 PM THEY RECEIVED VERY HEAVY SNOW, WITH 4 IN THE 2 HOUR TIME FRAME. THE DURATION OF THE HEAVY SNOW EVENT WAS 24 HOURS. |
| Feb 17, 9:06 PM MST | SNOW 10 | Evergreen, MT | |
| Feb 17, 9:20 PM MST | SNOW 10.5 | 1 Nnw Bigfork, MT | STORM TOTAL SNOWFALL OF 10.5 INCHES. CURRENT SNOW DEPTH OF 17.5 INCHES. SNOWFALL RATES DURING STORM OF 2 INCHES PER HOUR AT TIMES. |
| Feb 17, 9:40 PM MST | HEAVY SNOW 10.5 | 1 Nnw Bigfork, MT | |
| Feb 17, 9:51 PM MST | HEAVY SNOW 12 | 2 Wnw Kalispell, MT | CURRENT STORM TOTAL. BLIZZARD CONDITIONS. 4 FOOT DRIFTS. |
| Feb 17, 10:05 PM MST | SNOW 12.1 | 3 Wnw Kalispell, MT | HEAVY SNOW/WIND, VISIBILITY 100 YARDS. |
| Feb 17, 10:32 PM MST | HEAVY SNOW 18 | Essex, MT | CURRENT SNOW TOTAL SINCE FRIDAY 2/16 AFTERNOON. |
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, 2.0 hours before the alert went out and 149 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
- 111 J/kg
- Mixed-layer CIN
- -42 J/kg
- Mixed-layer LCL
- 713 m above ground
- 0-6 km bulk shear
- 82 kt
- 0-1 km storm-relative helicity
- 282 m²/s²
- 0-3 km storm-relative helicity
- 282 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
891 WWUS45 KMSO 180157 WSWMSO URGENT - WINTER WEATHER MESSAGE National Weather Service Missoula MT 657 PM MST Sat Feb 17 2018 MTZ003-190000- /O.UPG.KMSO.WS.W.0008.000000T0000Z-180219T0000Z/ /O.NEW.KMSO.BZ.W.0002.180218T0157Z-180218T1800Z/ Flathead/Mission Valleys- 657 PM MST Sat Feb 17 2018 ...BLIZZARD WARNING IN EFFECT UNTIL 11 AM MST SUNDAY... * WHAT...Blizzard conditions. Winds gusting as high as 45 mph will cause whiteout conditions in blowing snow. Significant drifting of the snow is likely especially after 10 pm tonight. Additional snow accumulations of 5 to 8 inches, are expected. * WHERE...Flathead Lake, Flathead Valley, Mission Valley, and Polson. * WHEN...Until 11 AM MST Sunday. * ADDITIONAL DETAILS...Travel will be very dangerous to impossible. Tree branches could fall. The cold wind chills as low as 15 below zero could result in hypothermia if precautions are not taken. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Blizzard Warning means severe winter weather conditions are expected or occurring. Falling and blowing snow with strong winds and poor visibilities are likely. This will lead to whiteout conditions, making travel extremely dangerous. Do not travel. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IDZ005-006-181200- /O.CON.KMSO.WS.W.0008.000000T0000Z-180218T1200Z/ Northern Clearwater Mountains-Southern Clearwater Mountains- 557 PM PST Sat Feb 17 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST SUNDAY... * WHAT...Snow occurring. Heavy snow is expected into Sunday, especially above 3000 feet. Total snow accumulations of 12 to 18 inches for elevations above 3000 feet. 1 to 2 inches below 3000 feet. * WHERE...Elk River, Highway 11 Pierce to Headquarters, Pierce, Dixie, Elk City, and Highway 12 Lowell to Lolo Pass. * WHEN...For the Winter Storm Warning, from 10 AM this morning to 4 AM PST Sunday. * ADDITIONAL DETAILS...Plan on difficult travel conditions. Tree branches could fall. Winds gusting as high as 45 mph will cause areas of blowing and drifting snow. Plan on slippery road conditions. Be prepared for reduced visibilities at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow and blowing snow means severe winter weather conditions will make travel very hazardous or impossible. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ MTZ004-190000- /O.CON.KMSO.WS.W.0008.000000T0000Z-180219T0000Z/ Lower Clark Fork Region- 657 PM MST Sat Feb 17 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY... * WHAT...Snow occurring. Snow is expected to intensify this afternoon. Total snow accumulations of 9 to 12 inches, with up to 2 feet possible over Lookout Pass, are expected. Gusty west winds will begin this afternoon with east winds early Sunday, which will cause periods of blowing and drifting snow and poor visibility. A flash freeze of roadways this evening through Sunday morning will create very icy conditions. Travel may become hazardous. * 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 11 AM this morning to 5 PM MST Sunday. * ADDITIONAL DETAILS...Travel will be very difficult to impossible. Winds gusting as high as 40 mph will cause areas of blowing and drifting snow. Be prepared for reduced visibilities at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions will make travel very hazardous or impossible. 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. && $$ MTZ001-190000- /O.CON.KMSO.WS.W.0008.000000T0000Z-180219T0000Z/ Kootenai/Cabinet Region- 657 PM MST Sat Feb 17 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY... * WHAT...Snow occurring. Heavy snow and blowing snow expected this afternoon through Sunday. Total snow accumulations of 8 to 14 inches are expected. Gusty winds this evening through Sunday morning will cause blowing and drifting snow and poor visibility. * WHERE...Highway 2 Kalispell to Libby, Highway 37 Eureka to Libby, Highway 56 Bull Lake Road, and Highway 93 Eureka to Whitefish. * WHEN...For the Winter Storm Warning, from 11 AM this morning to 5 PM MST Sunday. * ADDITIONAL DETAILS...Travel will be very difficult to impossible. Winds gusting as high as 40 mph will cause areas of blowing and drifting snow. Trees branches may fall. The cold wind chills as low as 20 below zero could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow and blowing snow means severe winter weather conditions will make travel very hazardous or impossible. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ MTZ002-190000- /O.CON.KMSO.WS.W.0008.000000T0000Z-180219T0000Z/ West Glacier Region- 657 PM MST Sat Feb 17 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY... * WHAT...Snow occurring. Heavy snow and blowing snow expected this afternoon into Sunday. Total snow accumulations today through Sunday of 12 to 18 inches are expected. Gusty winds will cause blowing and drifting snow and poor visibility. Blizzard conditions are likely, along with very icy conditions this afternoon through Sunday. * WHERE...Bad Rock Canyon, Essex, Highway 83 Bigfork to Swan Lake, Marias Pass, and Polebridge. * WHEN...For the Winter Storm Warning, from 11 AM this morning to 5 PM MST Sunday. * ADDITIONAL DETAILS...Travel will be very difficult to impossible. Tree branches could fall. Winds gusting as high as 50 mph will cause widespread blowing and drifting snow. Wind chills as low as 30 below zero could cause frostbite on exposed skin in as little as 30 minutes. Be prepared for reduced visibilities. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow and blowing snow means severe winter weather conditions will make travel very hazardous or impossible. 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. && $$ MTZ007-043-190000- /O.CON.KMSO.WS.W.0008.000000T0000Z-180219T0000Z/ Butte/Blackfoot Region-Potomac/Seeley Lake Region- 657 PM MST Sat Feb 17 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY... * WHAT...Snow and blowing snow expected. Initial snow accumulations of 2 to 5 inches expected through the afternoon. Then, heavy snow and blowing snow expected this afternoon through Sunday. Additional snow accumulations of 4 to 8 inches, with localized amounts up to 12 inches, are expected by Sunday evening. * WHERE...Butte, Georgetown Lake, Highway 12 Garrison to Elliston, Homestake Pass, and MacDonald Pass. * WHEN...For the Winter Storm Warning, from 5 PM this afternoon to 5 PM MST Sunday. For the Winter Weather Advisory, from 11 AM this morning to 5 PM MST this afternoon. * ADDITIONAL DETAILS...Plan on slippery road conditions. In addition, areas of poor visibility are likely. Tree branches could fall. Winds gusting as high as 50 mph will cause areas of blowing and drifting snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow and blowing snow means severe winter weather conditions will make travel very hazardous or impossible. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ MTZ006-190000- /O.CON.KMSO.WS.W.0008.000000T0000Z-180219T0000Z/ Bitterroot/Sapphire Mountains- 657 PM MST Sat Feb 17 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY... * WHAT...Snow occurring. Initial snow accumulations of 6 to 10 inches, including over Lolo Pass and Lost Trail Pass. Then, this afternoon through Sunday, heavy snow and blowing snow is expected. Travel will become difficult due to slick roads and low visibility. Additional snow accumulations of 8 to 14 inches, localized amounts up to 18 inches for Lolo Pass, are possible. * WHERE...Bitterroot/Sapphire Mountains. * WHEN...For the Winter Storm Warning, from 11 AM this morning to 5 PM MST Sunday. * ADDITIONAL DETAILS...Plan on difficult travel conditions. Winds gusting as high as 50 mph will cause areas of blowing and drifting snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow and blowing snow means severe winter weather conditions will make travel very hazardous or impossible. 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. && $$ MTZ005-190000- /O.CON.KMSO.WS.W.0008.000000T0000Z-180219T0000Z/ Missoula/Bitterroot Valleys- 657 PM MST Sat Feb 17 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY... * WHAT...Snow occurring mainly from Stevensville through Missoula. Then, heavy snow and blowing snow expected this afternoon into Sunday. Snow will change to rain in the Bitterroot Valley and briefly in the Missoula Valley into this evening. Total snow accumulations of 6 to 10 inches from Stevensville north to Missoula with isolated amounts of 12 inches. Total snow accumulations of 3 to 7 inches are possible from Stevensville south. Gusty west winds develop by this evening and gusty east winds during Sunday morning, which will cause period of blowing and drifting snow and poor visibility. A freeze-up of roadways Saturday evening through Sunday morning will create very icy conditions. * WHERE...Missoula/Bitterroot Valleys. * WHEN...For the Winter Storm Warning, from 11 AM this morning to 5 PM MST Sunday. * ADDITIONAL DETAILS...Travel will be very difficult to impossible. Tree branches could fall. Winds gusting 30 to 40 mph will cause widespread blowing and drifting snow and very icy conditions. Wind chills of 10 below zero could cause frostbite on exposed skin in as little as 30 minutes during Sunday. Be prepared for reduced visibilities at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow and blowing snow means severe winter weather conditions will make travel very hazardous or impossible. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IDZ009-010-190000- /O.CON.KMSO.WW.Y.0022.000000T0000Z-180219T0000Z/ Western Lemhi County-Eastern Lemhi County- 657 PM MST Sat Feb 17 2018 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY... * WHAT...Snow and blowing snow expected. Total snow accumulations of 2 to 5 inches, with 8 to 14 inches Williams Creek and Lost Trail Pass, are expected. * WHERE...Shoup, Bannock Pass, Highway 28 Tendoy to Lone Pine, Highway 93 Lost Trail Pass to Gibbonsville, Lemhi Pass, and Salmon. * WHEN...From 5 PM Saturday to 5 PM MST Sunday. * ADDITIONAL DETAILS...Plan on slippery road conditions. In addition, areas of poor visibility are likely. Tree branches could fall. Winds gusting as high as 45 mph will cause areas of blowing and drifting snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow and blowing snow means periods of snow and blowing snow will cause primarily travel difficulties. Be prepared for snow covered roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$
1 follow-up statement
373 WWUS45 KMSO 181154 WSWMSO URGENT - WINTER WEATHER MESSAGE National Weather Service Missoula MT 454 AM MST Sun Feb 18 2018 MTZ003-190000- /O.CAN.KMSO.BZ.W.0002.000000T0000Z-180218T1800Z/ /O.EXA.KMSO.WS.W.0008.000000T0000Z-180219T0000Z/ Flathead/Mission Valleys- 454 AM MST Sun Feb 18 2018 ...WINTER STORM WARNING IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... ...BLIZZARD WARNING IS DOWNGRADED... * WHAT...Snow and gusty winds occurring. Additional snow accumulations of 1 to 4 inches. Gusty north winds will continue, resulting in periods of blowing and drifting snow and poor visibility. Bitterly cold temperatures and wind will keep roads icy or snow packed. Travel may be hazardous. * WHERE...Flathead Lake, Flathead Valley, Mission Valley, and Polson. * WHEN...For the Winter Storm Warning, this morning to 5 PM MST this afternoon. * ADDITIONAL DETAILS...Travel will be very difficult to impossible. Winds gusting as high as 40 mph will cause areas of blowing and drifting snow. Be prepared for reduced visibilities at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow and blowing snow means severe winter weather conditions will make travel very hazardous or impossible. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IDZ005-006-190000- /O.EXP.KMSO.WS.W.0008.000000T0000Z-180218T1200Z/ /O.EXB.KMSO.WW.Y.0022.180218T1200Z-180219T0000Z/ Northern Clearwater Mountains-Southern Clearwater Mountains- 354 AM PST Sun Feb 18 2018 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 4 PM PST THIS AFTERNOON... ...WINTER STORM WARNING WILL EXPIRE AT 4 AM PST EARLY THIS MORNING... * WHAT...Snow occurring. Additional snow accumulations of 3 to 6 inches for elevations above 3000 feet. 1 to 2 inches below 3000 feet. * WHERE...Elk River, Highway 11 Pierce to Headquarters, Pierce, Dixie, Elk City, and Highway 12 Lowell to Lolo Pass. * WHEN...For the Winter Weather Advisory, until 4 PM PST this afternoon. * ADDITIONAL DETAILS...Plan on slippery road conditions. In addition, areas of poor visibility are likely. Tree branches could fall. Winds gusting as high as 45 mph will cause areas of blowing and drifting snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow and blowing snow means periods of snow and blowing snow will cause primarily travel difficulties. Be prepared for snow covered roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ MTZ004-190000- /O.CON.KMSO.WS.W.0008.000000T0000Z-180219T0000Z/ Lower Clark Fork Region- 454 AM MST Sun Feb 18 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * WHAT...Snow occurring. Additional snow accumulations of 3 to 6 inches, with up to 8 inches possible over Lookout Pass, are expected. Gusty north and east winds will cause periods of blowing and drifting snow and poor visibility. Bitterly cold temperatures and wind will keep roads icy or snow packed. Travel may be hazardous. * WHERE...Evaro Hill, Highway 200 Thompson Falls to Plains, Highway 200 Trout Creek to Heron, and I-90 Lookout Pass to Haugan. * WHEN...For the Winter Storm Warning, this morning to 5 PM MST this afternoon. * ADDITIONAL DETAILS...Travel will be very difficult to impossible. Winds gusting as high as 40 mph will cause areas of blowing and drifting snow. Be prepared for reduced visibilities at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions will make travel very hazardous or impossible. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ MTZ001-190000- /O.CON.KMSO.WS.W.0008.000000T0000Z-180219T0000Z/ Kootenai/Cabinet Region- 454 AM MST Sun Feb 18 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * WHAT...Snow occurring. Additional snow accumulations of 1 to 4 inches are expected. Gusty north and east winds will cause blowing and drifting snow and poor visibility. Bitterly cold temperatures and wind will keep roads icy or snow packed. * 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, this morning to 5 PM MST this afternoon. * ADDITIONAL DETAILS...Travel will be very difficult. Winds gusting as high as 35 mph will cause areas of blowing and drifting snow. Trees branches may fall. 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... A Winter Storm Warning for snow and blowing snow means severe winter weather conditions will make travel very hazardous or impossible. 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. && $$ MTZ002-190000- /O.CON.KMSO.WS.W.0008.000000T0000Z-180219T0000Z/ West Glacier Region- 454 AM MST Sun Feb 18 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * WHAT...Snow occurring. Additional snow accumulations of 1 to 4 inches are expected, locally higher for terrain. Gusty north and east winds will cause blowing and drifting snow and poor visibility. Bitterly cold temperatures and wind will keep roads icy or snow packed. * WHERE...Bad Rock Canyon, Essex, Highway 83 Bigfork to Swan Lake, Marias Pass, and Polebridge. * WHEN...For the Winter Storm Warning, this morning to 5 PM MST this afternoon. * ADDITIONAL DETAILS...Travel will be very difficult to impossible. Tree branches could fall. Winds gusting as high as 50 mph will cause widespread blowing and drifting snow. Wind chills as low as 30 below zero could cause frostbite on exposed skin in as little as 30 minutes. Be prepared for reduced visibilities. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow and blowing snow means severe winter weather conditions will make travel very hazardous or impossible. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ MTZ007-043-190000- /O.CON.KMSO.WS.W.0008.000000T0000Z-180219T0000Z/ Butte/Blackfoot Region-Potomac/Seeley Lake Region- 454 AM MST Sun Feb 18 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * WHAT...Snow and blowing snow occurring. Additional snow accumulations of 2 to 5 inches expected. Gusty north and east winds will cause blowing and drifting snow and poor visibility. Bitterly cold temperatures and wind will keep roads icy or snow packed. * WHERE...Butte, Georgetown Lake, Highway 12 Garrison to Elliston, Homestake Pass, and MacDonald Pass. * WHEN...For the Winter Storm Warning, this morning to 5 PM MST this afternoon. * ADDITIONAL DETAILS...Plan on slippery road conditions. In addition, areas of poor visibility are likely. Tree branches could fall. Winds gusting as high as 50 mph will cause areas of blowing and drifting snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow and blowing snow means severe winter weather conditions will make travel very hazardous or impossible. 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. && $$ MTZ006-190000- /O.CON.KMSO.WS.W.0008.000000T0000Z-180219T0000Z/ Bitterroot/Sapphire Mountains- 454 AM MST Sun Feb 18 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * WHAT...Snow occurring. Additional snow accumulations of 3 to 6 inches, including over Lolo Pass and Lost Trail Pass. Gusty north and east winds cause blowing and drifting snow and poor visibility. Bitterly cold temperatures and wind will keep roads icy or snow packed. * WHERE...Bitterroot/Sapphire Mountains. * WHEN...For the Winter Storm Warning, this morning to 5 PM MST this afternoon. * ADDITIONAL DETAILS...Plan on difficult travel conditions. In addition, areas of poor visibility are likely. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow and blowing snow means severe winter weather conditions will make travel very hazardous or impossible. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ MTZ005-190000- /O.CON.KMSO.WS.W.0008.000000T0000Z-180219T0000Z/ Missoula/Bitterroot Valleys- 454 AM MST Sun Feb 18 2018 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * WHAT...Snow occurring. Additional snow accumulations of 1 to 4 inches expected. Gusty north and east winds will increase this morning, which will cause periods of blowing and drifting snow and poor visibility. Bitterly cold temperatures and wind will keep roads icy or snow packed. * WHERE...Missoula/Bitterroot Valleys. * WHEN...For the Winter Storm Warning, this morning to 5 PM MST this afternoon. * ADDITIONAL DETAILS...Travel will be very difficult to impossible. Tree branches could fall. Winds gusting 30 to 40 mph will cause widespread blowing and drifting snow and very icy conditions. Wind chills of 10 below zero could cause frostbite on exposed skin in as little as 30 minutes during Sunday. Be prepared for reduced visibilities at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow and blowing snow means severe winter weather conditions will make travel very hazardous or impossible. 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. && $$ IDZ009-010-190000- /O.CON.KMSO.WW.Y.0022.000000T0000Z-180219T0000Z/ Western Lemhi County-Eastern Lemhi County- 454 AM MST Sun Feb 18 2018 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * WHAT...Snow occurring. Total snow accumulations of 1 to 5 inches, including Williams Creek and Lost Trail Pass, are expected. * WHERE...Shoup, Bannock Pass, Highway 28 Tendoy to Lone Pine, Highway 93 Lost Trail Pass to Gibbonsville, Lemhi Pass, and Salmon. * WHEN...From 5 PM Saturday to 5 PM MST Sunday. * ADDITIONAL DETAILS...Plan on slippery road conditions. In addition, areas of poor visibility are likely. Tree branches could fall. Winds gusting as high as 45 mph will cause areas of blowing and drifting snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow and blowing snow means periods of snow and blowing snow will cause primarily travel difficulties. Be prepared for snow covered roads and limited visibilities, and use caution while driving. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$
The office that day
Everything else NWS Missoula, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 18, 2:26 PM MST | Wind Chill Advisory | MSO | Deer Lodge, Flathead, Granite, Lake, Lincoln, Mineral and 5 more | 23 hr |
Nearby
Blizzard Warnings in Montana, 2018Every blizzard warning in 2018
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.