Alert archive / Montana / Winter Storm Warnings in 2017
Winter Storm Warning 21, NWS Missoula, MT
NWS Missoula, MT issued this winter storm warning at Mar 7, 2017, 2:42 PM MST for 7 counties in Montana. It took effect at Mar 7, 2017, 5:00 PM MST. It was in force for 18 hr. 3 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
- Mar 7, 2017, 2:42 PM MST (21:42 UTC)
- In effect from
- Mar 7, 2017, 5:00 PM MST
- Expired
- Mar 8, 2017, 11:00 AM MST
- In force
- 18 hr
- Issued by
- NWS Missoula, MT
Counties Granite County, MT, Lake County, MT, Mineral County, MT, Missoula County, MT, Powell County, MT, Ravalli County, MT, Sanders County, MT
The radar
The Missoula radar (KMSX), 11 km from the middle of the area, began a volume at 21:41 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 |
|---|---|---|---|
| Mar 8, 7:44 AM MST | SNOW 5 | 3 E Heron, MT | . |
| Mar 8, 9:55 AM MST | SNOW 3.5 | 2 Sse Seeley Lake, MT | . |
| Mar 8, 9:57 AM MST | SNOW 4 | 4 Ene Seeley Lake, 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 12:00Z, 9.7 hours before the alert went out and 192 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
- 1338 m above ground
- 0-6 km bulk shear
- 84 kt
- 0-1 km storm-relative helicity
- 159 m²/s²
- 0-3 km storm-relative helicity
- 168 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
994 WWUS45 KMSO 072142 WSWMSO URGENT - WINTER WEATHER MESSAGE National Weather Service Missoula MT 242 PM MST Tue Mar 7 2017 MTZ004-082145- /O.UPG.KMSO.WS.A.0001.170308T0000Z-170309T1500Z/ /O.NEW.KMSO.WS.W.0003.170308T0000Z-170308T1800Z/ 242 PM MST Tue Mar 7 2017 ...WINTER STORM WARNING IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST WEDNESDAY... * Periods of moderate to heavy snow will be on the increase this evening and will cause hazardous travel through Wednesday morning. The heaviest period of snow will be overnight tonight where snowfall rates of 1 to 2 inch per hour is possible. The heavy snow will cause roads to become snow covered and near zero visibility should be expected at times. * Snow accumulations: 10 to 14 inches near Lookout pass. 4 to 7 inches for valleys. * Winds: Southwest winds 15-25 mph with locally higher gusts across ridge tops $$ MTZ006-082145- /O.UPG.KMSO.WS.A.0001.170308T0000Z-170309T1500Z/ /O.NEW.KMSO.WS.W.0003.170308T0000Z-170308T1800Z/ 242 PM MST Tue Mar 7 2017 ...WINTER STORM WARNING IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST WEDNESDAY FOR HIGHWAY 93 SULA TO LOST TRAIL PASS AND LOLO PASS... * Periods of moderate to heavy snow will be on the increase this evening and will cause hazardous travel through Wednesday morning. The heaviest period of snow will be overnight tonight where snowfall rates of 1 to 2 inch per hour is possible. The heavy snow will cause roads to become snow covered and near zero visibility should be expected at times. * Snow accumulations: 10 to 14 inches near Lolo pass. 6 to 9 inches for Lost Trail pass. * Winds: Southwest winds 15-25 mph with locally higher gusts across ridge tops $$ MTZ043-082145- /O.UPG.KMSO.WS.A.0001.170308T0000Z-170309T1500Z/ /O.NEW.KMSO.WS.W.0003.170308T0000Z-170308T1800Z/ 242 PM MST Tue Mar 7 2017 ...WINTER STORM WARNING IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST WEDNESDAY... * Periods of moderate to heavy snow will be on the increase this evening and will cause hazardous travel through Wednesday morning. The heaviest period of snow will be overnight tonight after midnight through early Wednesday morning, where snowfall rates of 1 to 2 inch per hour is possible. The heavy snow will cause roads to become snow covered and near zero visibility should be expected at times. * Snow accumulations: 5 to 8 inches with locally higher amounts for the Seeley-Swan valleys. 10 to 14 inches for mountains. $$ IDZ005-006-082145- /O.UPG.KMSO.WS.A.0001.170308T0000Z-170309T1500Z/ /O.NEW.KMSO.WW.Y.0013.170308T0000Z-170308T1800Z/ 142 PM PST Tue Mar 7 2017 ...WINTER WEATHER ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO 10 AM PST WEDNESDAY... * Periods of moderate to heavy snow will be on the increase this evening and will cause hazardous travel through Wednesday morning. The heaviest period of snow will be overnight tonight, where snowfall rates of 1 inch per hour is possible. The moderate to heavy snow will cause roads to become snow covered and limited visibility should be expected at times. * Snow accumulations: 4 to 8 inches for valleys above 3000 feet. 8 to 14 inches for mountains. $$ MTZ003-082145- /O.NEW.KMSO.WW.Y.0013.170308T0000Z-170308T1800Z/ /O.NEW.KMSO.WS.A.0002.170310T0000Z-170310T1800Z/ 242 PM MST Tue Mar 7 2017 ...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST WEDNESDAY... ...WINTER STORM WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH FRIDAY MORNING... * Periods of moderate snow will be on the increase this evening and will cause slick travel through the Wednesday morning commute. The greatest period of snow will be overnight tonight and should begin to taper off by Wednesday morning. * Snow accumulations: 3 to 6 inches for the Flathead valleys. 1 to 3 inches for Mission valleys. * THURSDAY EVENING THROUGH FRIDAY MIDDAY: An arctic airmass will move over the Continental Divide, providing a possible focal point for heavy snow and low visibility along Highway 2 as far west as the Flathead Valley. The worst of travel impacts from snow through Friday midday are possible throughout the Flathead Valley, with snow accumulations in the 4 to 7 inch range possible. * Locations impacted include: Flathead Lake, Flathead Valley. $$ MTZ002-082145- /O.NEW.KMSO.WW.Y.0013.170308T0000Z-170308T1800Z/ /O.NEW.KMSO.WS.A.0002.170310T0000Z-170310T1800Z/ 242 PM MST Tue Mar 7 2017 ...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST WEDNESDAY... ...WINTER STORM WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH FRIDAY MORNING... * Periods of moderate to heavy snow will be on the increase this evening and will cause hazardous travel through Wednesday morning. The heaviest period of snow will be overnight tonight after midnight through early Wednesday morning, where snowfall rates of 1 to 2 inch per hour is possible. The heavy snow will cause roads to become snow covered and near zero visibility should be expected at times especially over Marias pass. * Snow accumulations: 3 to 6 inches for valleys. 6 to 10 inches for Marias pass. * THURSDAY EVENING THROUGH FRIDAY MIDDAY: An arctic airmass will move over the Continental Divide, providing a possible focal point for heavy snow, blowing snow, and low visibility along Highway 2 as far west as the Flathead Valley. The worst of travel impacts from snow through Friday midday are possible near Marias Pass, with snow accumulations in the 8 to 12 inch range possible. * Locations impacted include: Bad Rock Canyon, Essex, Highway 83 Bigfork to Swan Lake, Marias Pass, and Polebridge $$ MTZ001-081800- /O.NEW.KMSO.WW.Y.0013.170308T0000Z-170308T1800Z/ 242 PM MST Tue Mar 7 2017 ...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST WEDNESDAY... * Periods of moderate snow will be on the increase this evening and will cause slick travel through the Wednesday morning commute. The greatest period of snow will be overnight tonight and should begin to taper off by Wednesday morning. * Snow accumulations: 3 to 6 inches for valleys. 6 to 8 inches for mountains. * Locations impacted include: Highway 2 Kalispell to Libby, Highway 37 Eureka to Libby, Highway 56 Bull Lake Road, and Highway 93 Eureka to Whitefish $$ MTZ007-081800- /O.NEW.KMSO.WW.Y.0013.170308T0300Z-170308T1800Z/ 242 PM MST Tue Mar 7 2017 ...WINTER WEATHER ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 11 AM MST WEDNESDAY... * Periods of light to moderate snow will be on the increase tonight and should cause slick travel through the Wednesday morning commute. Winds will also be on the increase during the morning which could cause blowing snow over MacDonald pass. * Snow accumulations: 2 to 5 inches along the corridor from Ovando to MacDonald pass. 1 to 3 inches elsewhere. * Winds: southwest 15-30 mph with higher gusts * Locations impacted include: Butte, Georgetown Lake, Highway 12 Garrison to Elliston, Homestake Pass, and MacDonald Pass $$
4 follow-up statements
049 WWUS45 KMSO 081110 WSWMSO URGENT - WINTER WEATHER MESSAGE National Weather Service Missoula MT 410 AM MST Wed Mar 8 2017 MTZ004-081800- /O.CON.KMSO.WS.W.0003.000000T0000Z-170308T1800Z/ 410 AM MST Wed Mar 8 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * Periods of moderate to heavy snow will cause roads to become snow covered with near zero visibility at times. * Snow accumulations: 10 to 14 inches near Lookout Pass. 4 to 7 inches for valleys. * Winds: Southwest 15-25 mph with locally higher gusts across ridge tops. $$ MTZ006-081800- /O.CON.KMSO.WS.W.0003.000000T0000Z-170308T1800Z/ 410 AM MST Wed Mar 8 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING FOR HIGHWAY 93 SULA TO LOST TRAIL PASS AND LOLO PASS... * Periods of moderate to heavy snow will cause roads to become snow covered with near zero visibility at times. * Snow accumulations: 10 to 14 inches near Lolo Pass. 6 to 9 inches for Lost Trail pass. * Winds: Southwest 15-25 mph with locally higher gusts across ridge tops. $$ MTZ043-081800- /O.CON.KMSO.WS.W.0003.000000T0000Z-170308T1800Z/ 410 AM MST Wed Mar 8 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * Periods of moderate to heavy snow will cause roads to become snow covered with near zero visibility at times. * Snow accumulations: 5 to 8 inches with locally higher amounts for the Seeley-Swan valleys. 10 to 14 inches for mountains. $$ MTZ001-091115- /O.EXA.KMSO.WS.A.0002.170310T0000Z-170310T1800Z/ /O.CON.KMSO.WW.Y.0013.000000T0000Z-170308T1800Z/ 410 AM MST Wed Mar 8 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... ...WINTER STORM WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH FRIDAY MORNING... * This morning: Periods of moderate snow will create difficult driving conditions due to snow covered road surfaces. * Snow accumulations through this morning: 3 to 6 inches for valleys. 6 to 10 inches for Marias Pass. * THURSDAY EVENING THROUGH FRIDAY MIDDAY: An arctic air mass will move over the Continental Divide, providing a focal point for heavy snow, blowing snow, and low visibility. The worst travel impacts are expected to begin late Thursday night and persist into Friday morning. Heaviest snow will fall generally north of US-2 with 8 to 12 inches, locally up to 16 inches possible by Friday afternoon. * Locations impacted include: Highway 2 Kalispell to Libby, Highway 37 Eureka to Libby, Highway 56 Bull Lake Road, and Highway 93 Eureka to Whitefish $$ MTZ003-091115- /O.CON.KMSO.WW.Y.0013.000000T0000Z-170308T1800Z/ /O.CON.KMSO.WS.A.0002.170310T0000Z-170310T1800Z/ 410 AM MST Wed Mar 8 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... ...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON THROUGH FRIDAY MORNING... * This morning: Periods of moderate snow will create difficult driving conditions due to snow covered road surfaces. * Snow accumulations through this morning: 3 to 6 inches for the Flathead valleys. 1 to 3 inches for Mission valleys. * THURSDAY EVENING THROUGH FRIDAY MIDDAY: An arctic airmass will move over the Continental Divide, providing a focal point for heavy snow and low visibility along Highway 2 as far west as the Flathead Valley. The worst of travel impacts from snow are expected to begin late Thursday night and linger into Friday morning. Snow accumulations in the 6 to 12 inch range are possible by Friday afternoon. * Locations impacted include: Flathead Lake, Flathead Valley, Mission Valley, and Polson $$ MTZ002-091115- /O.CON.KMSO.WW.Y.0013.000000T0000Z-170308T1800Z/ /O.CON.KMSO.WS.A.0002.170310T0000Z-170310T1800Z/ 410 AM MST Wed Mar 8 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... ...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON THROUGH FRIDAY MORNING... * This morning: Periods of moderate snow will create difficult driving conditions due to snow covered road surfaces, especially along Highway 2 from near Essex to Marias Pass, where visibility will be reduced for periods of time. * Snow accumulations through this morning: 3 to 6 inches for valleys. 6 to 10 inches for Marias pass. * THURSDAY EVENING THROUGH FRIDAY MIDDAY: An arctic airmass will move over the Continental Divide, providing a focal point for heavy snow, blowing snow, and low visibility along Highway 2 as far west as the Flathead Valley. The worst travel impacts are expected to begin late Thursday afternoon and persist through Friday. Travel over Marias Pass will be particularly dangerous at times due to heavy snow and blowing snow. Total accumulations in the 12 to 18 inch range are possible with up to around 2 feet possible across the highest terrain. * Locations impacted include: Bad Rock Canyon, Essex, Highway 83 Bigfork to Swan Lake, Marias Pass, and Polebridge $$ IDZ005-006-081800- /O.CON.KMSO.WW.Y.0013.000000T0000Z-170308T1800Z/ 310 AM PST Wed Mar 8 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING... * Periods of moderate snow will create difficult driving conditions due to snow covered road surfaces. * Snow accumulations: 4 to 8 inches for valleys above 3000 feet. 8 to 14 inches for mountains. $$ MTZ007-081800- /O.CON.KMSO.WW.Y.0013.000000T0000Z-170308T1800Z/ 410 AM MST Wed Mar 8 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * Periods of moderate snow will create difficult driving conditions due to snow covered road surfaces. * Snow accumulations: 2 to 5 inches along the corridor from Ovando to MacDonald pass. 1 to 3 inches elsewhere. * Winds: Southwest 15-30 mph with higher gusts over MacDonald Pass. * Locations impacted include: Butte, Georgetown Lake, Highway 12 Garrison to Elliston, Homestake Pass, and MacDonald Pass $$
595 WWUS45 KMSO 081432 WSWMSO URGENT - WINTER WEATHER MESSAGE National Weather Service Missoula MT 732 AM MST Wed Mar 8 2017 MTZ004-081800- /O.CAN.KMSO.WS.W.0003.000000T0000Z-170308T1800Z/ /O.EXA.KMSO.WW.Y.0013.000000T0000Z-170308T1800Z/ 732 AM MST Wed Mar 8 2017 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 AM MST THIS MORNING... ...WINTER STORM WARNING IS CANCELLED... The National Weather Service in Missoula has cancelled the Winter Storm Warning. * Snow intensities have decreased but light to moderate snow will continue to impact area roads. Off and on snow showers will create variable road conditions with everything from wet, slushy to snow covered roads throughout this morning. * Snow accumulations: An additional 1 to 3 inches of snow. $$ MTZ006-081800- /O.CON.KMSO.WS.W.0003.000000T0000Z-170308T1800Z/ 732 AM MST Wed Mar 8 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING FOR HIGHWAY 93 SULA TO LOST TRAIL PASS AND LOLO PASS... * Periods of moderate to heavy snow will cause roads to become snow covered with near zero visibility at times. * Snow accumulations: 10 to 14 inches near Lolo Pass. 6 to 9 inches for Lost Trail pass. * Winds: Southwest 15-25 mph with locally higher gusts across ridge tops. $$ MTZ043-081800- /O.CON.KMSO.WS.W.0003.000000T0000Z-170308T1800Z/ 732 AM MST Wed Mar 8 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * Periods of moderate to heavy snow will cause roads to become snow covered with near zero visibility at times. * Snow accumulations: 5 to 8 inches with locally higher amounts for the Seeley-Swan valleys. 10 to 14 inches for mountains. $$ MTZ003-091445- /O.EXT.KMSO.WW.Y.0013.000000T0000Z-170308T1600Z/ /O.CON.KMSO.WS.A.0002.170310T0000Z-170310T1800Z/ 732 AM MST Wed Mar 8 2017 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 9 AM MST THIS MORNING... ...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON THROUGH FRIDAY MORNING... * This morning: Snow has ended for the Flathead and Mission valleys but slick roads will continue through the morning commute. * THURSDAY EVENING THROUGH FRIDAY MIDDAY: An arctic airmass will move over the Continental Divide, providing a focal point for heavy snow and low visibility along Highway 2 as far west as the Flathead Valley. The worst of travel impacts from snow are expected to begin late Thursday night and linger into Friday morning. Snow accumulations in the 6 to 12 inch range are possible by Friday afternoon. * Locations impacted include: Flathead Lake, Flathead Valley, Mission Valley, and Polson $$ MTZ001-091445- /O.EXT.KMSO.WW.Y.0013.000000T0000Z-170308T1600Z/ /O.CON.KMSO.WS.A.0002.170310T0000Z-170310T1800Z/ 732 AM MST Wed Mar 8 2017 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 9 AM MST THIS MORNING... ...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON THROUGH FRIDAY MORNING... * This morning: Snow has ended, but slick roads will continue through the morning commute. * THURSDAY EVENING THROUGH FRIDAY MIDDAY: An arctic air mass will move over the Continental Divide, providing a focal point for heavy snow, blowing snow, and low visibility. The worst travel impacts are expected to begin late Thursday night and persist into Friday morning. Heaviest snow will fall generally north of US-2 with 8 to 12 inches, locally up to 16 inches possible by Friday afternoon. * Locations impacted include: Highway 2 Kalispell to Libby, Highway 37 Eureka to Libby, Highway 56 Bull Lake Road, and Highway 93 Eureka to Whitefish $$ MTZ002-091445- /O.CON.KMSO.WW.Y.0013.000000T0000Z-170308T1800Z/ /O.CON.KMSO.WS.A.0002.170310T0000Z-170310T1800Z/ 732 AM MST Wed Mar 8 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... ...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON THROUGH FRIDAY MORNING... * This morning: Periods of moderate snow will create difficult driving conditions due to snow covered road surfaces, especially along Highway 2 from near Essex to Marias Pass, where visibility will be reduced for periods of time. * Snow accumulations through this morning: 3 to 6 inches for valleys. 6 to 10 inches for Marias pass. * THURSDAY EVENING THROUGH FRIDAY MIDDAY: An arctic airmass will move over the Continental Divide, providing a focal point for heavy snow, blowing snow, and low visibility along Highway 2 as far west as the Flathead Valley. The worst travel impacts are expected to begin late Thursday afternoon and persist through Friday. Travel over Marias Pass will be particularly dangerous at times due to heavy snow and blowing snow. Total accumulations in the 12 to 18 inch range are possible with up to around 2 feet possible across the highest terrain. * Locations impacted include: Bad Rock Canyon, Essex, Highway 83 Bigfork to Swan Lake, Marias Pass, and Polebridge $$ IDZ005-006-081800- /O.CON.KMSO.WW.Y.0013.000000T0000Z-170308T1800Z/ 632 AM PST Wed Mar 8 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING... * Periods of moderate snow will create difficult driving conditions due to snow covered road surfaces. * Snow accumulations: 4 to 8 inches for valleys above 3000 feet. 8 to 14 inches for mountains. $$ MTZ007-081800- /O.CON.KMSO.WW.Y.0013.000000T0000Z-170308T1800Z/ 732 AM MST Wed Mar 8 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * Periods of moderate snow will create difficult driving conditions due to snow covered road surfaces. * Snow accumulations: 2 to 5 inches along the corridor from Ovando to MacDonald pass. 1 to 3 inches elsewhere. * Winds: Southwest 15-30 mph with higher gusts over MacDonald Pass. * Locations impacted include: Butte, Georgetown Lake, Highway 12 Garrison to Elliston, Homestake Pass, and MacDonald Pass $$
037 WWUS45 KMSO 081550 WSWMSO URGENT - WINTER WEATHER MESSAGE National Weather Service Missoula MT 850 AM MST Wed Mar 8 2017 MTZ003-091600- /O.EXP.KMSO.WW.Y.0013.000000T0000Z-170308T1600Z/ /O.CON.KMSO.WS.A.0002.170310T0000Z-170310T1800Z/ 850 AM MST Wed Mar 8 2017 ...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON THROUGH FRIDAY MORNING... ...WINTER WEATHER ADVISORY WILL EXPIRE AT 9 AM MST THIS MORNING... * This morning: Snow has ended for the Flathead and Mission valleys and roads should begin to improve as temperatures warm throughout the day today. * THURSDAY EVENING THROUGH FRIDAY MIDDAY: An arctic airmass will move over the Continental Divide, providing a focal point for heavy snow and low visibility along Highway 2 as far west as the Flathead Valley. The worst of travel impacts from snow are expected to begin late Thursday night and linger into Friday morning. Snow accumulations in the 6 to 12 inch range are possible by Friday afternoon. * Locations impacted include: Flathead Lake, Flathead Valley, Mission Valley, and Polson $$ MTZ001-091600- /O.EXP.KMSO.WW.Y.0013.000000T0000Z-170308T1600Z/ /O.CON.KMSO.WS.A.0002.170310T0000Z-170310T1800Z/ 850 AM MST Wed Mar 8 2017 ...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON THROUGH FRIDAY MORNING... ...WINTER WEATHER ADVISORY WILL EXPIRE AT 9 AM MST THIS MORNING... * This morning: Snow has ended and roads should begin to improve as temperatures warm throughout the day today. * THURSDAY EVENING THROUGH FRIDAY MIDDAY: An arctic air mass will move over the Continental Divide, providing a focal point for heavy snow, blowing snow, and low visibility. The worst travel impacts are expected to begin late Thursday night and persist into Friday morning. Heaviest snow will fall generally north of US-2 with 8 to 12 inches, locally up to 16 inches possible by Friday afternoon. * Locations impacted include: Highway 2 Kalispell to Libby, Highway 37 Eureka to Libby, Highway 56 Bull Lake Road, and Highway 93 Eureka to Whitefish $$ MTZ006-081800- /O.CON.KMSO.WS.W.0003.000000T0000Z-170308T1800Z/ 850 AM MST Wed Mar 8 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING FOR HIGHWAY 93 SULA TO LOST TRAIL PASS AND LOLO PASS... * Periods of moderate to heavy snow will cause roads to become snow covered with near zero visibility at times. * Snow accumulations: 10 to 14 inches near Lolo Pass. 6 to 9 inches for Lost Trail pass. * Winds: Southwest 15-25 mph with locally higher gusts across ridge tops. $$ MTZ043-081800- /O.CON.KMSO.WS.W.0003.000000T0000Z-170308T1800Z/ 850 AM MST Wed Mar 8 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * Periods of moderate to heavy snow will cause roads to become snow covered with near zero visibility at times. * Snow accumulations: 5 to 8 inches with locally higher amounts for the Seeley-Swan valleys. 10 to 14 inches for mountains. $$ MTZ002-091600- /O.CON.KMSO.WW.Y.0013.000000T0000Z-170308T1800Z/ /O.CON.KMSO.WS.A.0002.170310T0000Z-170310T1800Z/ 850 AM MST Wed Mar 8 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... ...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON THROUGH FRIDAY MORNING... * This morning: Periods of moderate snow will create difficult driving conditions due to snow covered road surfaces, especially along Highway 2 from near Essex to Marias Pass, where visibility will be reduced for periods of time. * Snow accumulations through this morning: 3 to 6 inches for valleys. 6 to 10 inches for Marias pass. * THURSDAY EVENING THROUGH FRIDAY MIDDAY: An arctic airmass will move over the Continental Divide, providing a focal point for heavy snow, blowing snow, and low visibility along Highway 2 as far west as the Flathead Valley. The worst travel impacts are expected to begin late Thursday afternoon and persist through Friday. Travel over Marias Pass will be particularly dangerous at times due to heavy snow and blowing snow. Total accumulations in the 12 to 18 inch range are possible with up to around 2 feet possible across the highest terrain. * Locations impacted include: Bad Rock Canyon, Essex, Highway 83 Bigfork to Swan Lake, Marias Pass, and Polebridge $$ MTZ004-081800- /O.CON.KMSO.WW.Y.0013.000000T0000Z-170308T1800Z/ 850 AM MST Wed Mar 8 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... The National Weather Service in Missoula has cancelled the Winter Storm Warning. * Snow intensities have decreased but light to moderate snow will continue to impact area roads. Off and on snow showers will create variable road conditions with everything from wet, slushy to snow covered roads throughout this morning. * Snow accumulations: An additional 1 to 3 inches of snow. $$ IDZ005-006-081800- /O.CON.KMSO.WW.Y.0013.000000T0000Z-170308T1800Z/ 750 AM PST Wed Mar 8 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING... * Periods of moderate snow will create difficult driving conditions due to snow covered road surfaces. * Snow accumulations: 4 to 8 inches for valleys above 3000 feet. 8 to 14 inches for mountains. $$ MTZ007-081800- /O.CON.KMSO.WW.Y.0013.000000T0000Z-170308T1800Z/ 850 AM MST Wed Mar 8 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * Periods of moderate snow will create difficult driving conditions due to snow covered road surfaces. * Snow accumulations: 2 to 5 inches along the corridor from Ovando to MacDonald pass. 1 to 3 inches elsewhere. * Winds: Southwest 15-30 mph with higher gusts over MacDonald Pass. * Locations impacted include: Butte, Georgetown Lake, Highway 12 Garrison to Elliston, Homestake Pass, and MacDonald Pass $$
710 WWUS45 KMSO 081757 WSWMSO URGENT - WINTER WEATHER MESSAGE National Weather Service Missoula MT 1057 AM MST Wed Mar 8 2017 MTZ006-081900- /O.EXP.KMSO.WS.W.0003.000000T0000Z-170308T1800Z/ 1057 AM MST Wed Mar 8 2017 ...WINTER STORM WARNING WILL EXPIRE AT 11 AM MST THIS MORNING FOR HIGHWAY 93 SULA TO LOST TRAIL PASS AND LOLO PASS... * Snow is on the decrease with mainly light snow showers expected through the rest of the afternoon. Daytime temperatures should lead to improved road conditions this afternoon. Another winter storm will begin to move in tonight and additional highlights may be needed. $$ MTZ043-081900- /O.EXP.KMSO.WS.W.0003.000000T0000Z-170308T1800Z/ 1057 AM MST Wed Mar 8 2017 ...WINTER STORM WARNING WILL EXPIRE AT 11 AM MST THIS MORNING... * Snow is on the decrease with mainly light snow showers expected through the rest of the afternoon. Daytime temperatures should lead to improved road conditions this afternoon. Another winter storm will begin to move in tonight and additional highlights may be needed. * Locations impacted include: Highway 200 Bonner to Greenough, Highway 83 Seeley Lake to Condon, and I-90 East Missoula to Bearmouth $$ MTZ002-091800- /O.EXP.KMSO.WW.Y.0013.000000T0000Z-170308T1800Z/ /O.CON.KMSO.WS.A.0002.170310T0000Z-170310T1800Z/ 1057 AM MST Wed Mar 8 2017 ...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON THROUGH FRIDAY MORNING... ...WINTER WEATHER ADVISORY WILL EXPIRE AT 11 AM MST THIS MORNING... * Snow is on the decrease with mainly light snow showers expected through the rest of the afternoon. Daytime temperatures should lead to improved road conditions this afternoon. Another winter storm will begin to move in tonight and additional highlights may be needed. * THURSDAY EVENING THROUGH FRIDAY MIDDAY: An arctic airmass will move over the Continental Divide, providing a focal point for heavy snow, blowing snow, and low visibility along Highway 2 as far west as the Flathead Valley. The worst travel impacts are expected to begin late Thursday afternoon and persist through Friday. Travel over Marias Pass will be particularly dangerous at times due to heavy snow and blowing snow. Total accumulations in the 12 to 18 inch range are possible with up to around 2 feet possible across the highest terrain. * Locations impacted include: Bad Rock Canyon, Essex, Highway 83 Bigfork to Swan Lake, Marias Pass, and Polebridge $$ MTZ004-081900- /O.EXP.KMSO.WW.Y.0013.000000T0000Z-170308T1800Z/ 1057 AM MST Wed Mar 8 2017 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 11 AM MST THIS MORNING... * Snow is on the decrease with mainly light snow showers expected through the rest of the afternoon. Daytime temperatures should lead to improved road conditions for this afternoon. Another winter storm will begin to move in tonight and additional highlights may be needed. * Locations impacted include: Evaro Hill, Highway 200 Thompson Falls to Plains, Highway 200 Trout Creek to Heron, and I- 90 Lookout Pass to Haugan $$ IDZ005-006-081900- /O.EXP.KMSO.WW.Y.0013.000000T0000Z-170308T1800Z/ 957 AM PST Wed Mar 8 2017 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 10 AM PST THIS MORNING... * Snow is on the decrease with mainly light snow showers expected through the rest of the afternoon. Daytime temperatures should lead to improved road conditions for this afternoon. Another winter storm will begin to move in tonight and additional highlights may be needed. * Locations impacted include: Elk River, Highway 11 Pierce to Headquarters, Pierce, Dixie, Elk City, and Highway 12 Lowell to Lolo Pass $$ MTZ007-081900- /O.EXP.KMSO.WW.Y.0013.000000T0000Z-170308T1800Z/ 1057 AM MST Wed Mar 8 2017 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 11 AM MST THIS MORNING... * Snow is on the decrease with mainly light snow showers expected through the rest of the afternoon. Daytime temperatures should lead to improved road conditions for this afternoon. Another winter storm will begin to move in tonight and additional highlights may be needed. * Locations impacted include: Butte, Georgetown Lake, Highway 12 Garrison to Elliston, Homestake Pass, and MacDonald Pass $$ MTZ003-091800- /O.CON.KMSO.WS.A.0002.170310T0000Z-170310T1800Z/ 1057 AM MST Wed Mar 8 2017 ...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON THROUGH FRIDAY MORNING... * THURSDAY EVENING THROUGH FRIDAY MIDDAY: An arctic airmass will move over the Continental Divide, providing a focal point for heavy snow and low visibility along Highway 2 as far west as the Flathead Valley. The worst of travel impacts from snow are expected to begin late Thursday night and linger into Friday morning. Snow accumulations in the 6 to 12 inch range are possible by Friday afternoon. * Locations impacted include: Flathead Lake, Flathead Valley, Mission Valley, and Polson $$ MTZ001-091800- /O.CON.KMSO.WS.A.0002.170310T0000Z-170310T1800Z/ 1057 AM MST Wed Mar 8 2017 ...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY AFTERNOON THROUGH FRIDAY MORNING... * THURSDAY EVENING THROUGH FRIDAY MIDDAY: An arctic air mass will move over the Continental Divide, providing a focal point for heavy snow, blowing snow, and low visibility. The worst travel impacts are expected to begin late Thursday night and persist into Friday morning. Heaviest snow will fall generally north of US-2 with 8 to 12 inches, locally up to 16 inches possible by Friday afternoon. * Locations impacted include: Highway 2 Kalispell to Libby, Highway 37 Eureka to Libby, Highway 56 Bull Lake Road, and Highway 93 Eureka to Whitefish $$
The office that day
Everything else NWS Missoula, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 6, 6:35 PM MST | Special Weather Statement | MSO | Granite, Missoula | 40 min |
| Mar 6, 10:17 PM MST | Special Weather Statement | MSO | Mineral, Missoula | 88 min |
| Mar 7, 12:36 AM MST | Special Weather Statement | MSO | Missoula, Powell | 84 min |
| Mar 7, 2:42 PM MST | Winter Weather Advisory | MSO | Deer Lodge, Flathead, Granite, Lake, Lincoln, Mineral and 4 more | 20 hr |
Nearby
Winter Storm Warnings in Montana, 2017Every winter storm warning in 2017
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.