Alert archive / Montana / Wind Advisories in 2017
Wind Advisory 4, NWS Missoula, MT
NWS Missoula, MT issued this wind advisory at Oct 16, 2017, 2:37 PM MDT for 11 counties in Montana. It took effect at Oct 17, 2017, 12:00 PM MDT. It was in force for 12 hr.
The area
The counties it named.
The facts
- Issued
- Oct 16, 2017, 2:37 PM MDT (20:37 UTC)
- In effect from
- Oct 17, 2017, 12:00 PM MDT
- Expired
- Oct 18, 2017, 12:00 AM MDT
- In force
- 12 hr
- Issued by
- NWS Missoula, MT
Counties Deer Lodge County, MT, Flathead County, MT, Granite County, MT, Lake County, MT, Lincoln County, MT, Mineral County, MT, Missoula County, MT, Powell County, MT, Ravalli County, MT, Sanders County, MT, Silver Bow County, MT
The radar
The Missoula radar (KMSX), 2 km from the middle of the area, began a volume at 20:35 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.
The nearest sounding before it
Spokane, WA (KOTX), launched 12:00Z, 8.6 hours before the alert went out and 195 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
- 2151 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 153 m²/s²
- 0-3 km storm-relative helicity
- 209 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
954 WWUS75 KMSO 162037 NPWMSO URGENT - WEATHER MESSAGE National Weather Service Missoula MT 237 PM MDT Mon Oct 16 2017 MTZ001>003-180300- /O.NEW.KMSO.WI.Y.0004.171017T1800Z-171018T0300Z/ Kootenai/Cabinet Region-West Glacier Region- Flathead/Mission Valleys- 237 PM MDT Mon Oct 16 2017 ...WIND ADVISORY IN EFFECT FROM NOON TO 9 PM MDT TUESDAY... The National Weather Service in Missoula has issued a Wind Advisory...which is in effect from noon to 9 PM MDT Tuesday. * Impacts/Timing: Winds in northwest Montana will increase during Tuesday afternoon and are expected to peak during the late afternoon and evening. These winds will cause some tree damage, difficult driving conditions and large waves on area lakes. Broad valleys and valleys oriented east to west will have the biggest impacted from the winds. * Winds: West 15 to 25 mph with gusts 30 to 45 mph in the valleys. Gusts in excess of 50 mph in the higher terrain. * Locations impacted include: Highway 2 Kalispell to Libby, Highway 37 Eureka to Libby, Highway 56 Bull Lake Road, Highway 93 Eureka to Whitefish, Bad Rock Canyon, Essex, Highway 83 Bigfork to Swan Lake, Marias Pass, Polebridge, Flathead Lake, Flathead Valley, Mission Valley, and Polson $$ MTZ004-005-007-043-180600- /O.NEW.KMSO.WI.Y.0004.171017T2100Z-171018T0600Z/ Lower Clark Fork Region-Missoula/Bitterroot Valleys- Butte/Blackfoot Region-Potomac/Seeley Lake Region- 237 PM MDT Mon Oct 16 2017 ...WIND ADVISORY IN EFFECT FROM 3 PM TUESDAY TO MIDNIGHT MDT TUESDAY NIGHT... The National Weather Service in Missoula has issued a Wind Advisory...which is in effect from 3 PM Tuesday to midnight MDT Tuesday night. * Impacts/Timing: Winds will increase during Tuesday afternoon and are expected to peak during the evening. These winds will cause some tree damage, and difficult driving conditions. Broad valleys and valleys oriented east to west will have the biggest impacted from the winds. * Winds: West 15 to 25 mph with gusts 30 to 45 mph in the valleys. Gusts in excess of 50 mph in the higher terrain. * Locations impacted include: Evaro Hill, Highway 200 Thompson Falls to Plains, Highway 200 Trout Creek to Heron, I-90 Lookout Pass to Haugan, Bitterroot Valley, Missoula, Butte, Georgetown Lake, Highway 12 Garrison to Elliston, Homestake Pass, MacDonald Pass, Highway 200 Bonner to Greenough, Highway 83 Seeley Lake to Condon, and I-90 East Missoula to Bearmouth $$
5 follow-up statements
336 WWUS75 KMSO 171801 NPWMSO URGENT - WEATHER MESSAGE National Weather Service Missoula MT 1201 PM MDT Tue Oct 17 2017 MTZ001>003-180300- /O.CON.KMSO.WI.Y.0004.000000T0000Z-171018T0300Z/ Kootenai/Cabinet Region-West Glacier Region- Flathead/Mission Valleys- 1201 PM MDT Tue Oct 17 2017 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING... * Impacts/Timing: Winds in northwest Montana will increase during Tuesday afternoon and are expected to peak during the late afternoon and evening. These winds will cause some tree damage, difficult driving conditions and large waves on area lakes. Falling trees will be particularly hazardous in recent burn scars. * Winds: West 15 to 25 mph with gusts 30 to 45 mph in the valleys. Gusts in excess of 50 mph in the higher terrain. * Locations impacted include: Highway 2 Kalispell to Libby, Highway 37 Eureka to Libby, Highway 56 Bull Lake Road, Highway 93 Eureka to Whitefish, Bad Rock Canyon, Essex, Highway 83 Bigfork to Swan Lake, Marias Pass, Polebridge, Flathead Lake, Flathead Valley, Mission Valley, and Polson $$ MTZ004-005-007-043-180600- /O.CON.KMSO.WI.Y.0004.171017T2100Z-171018T0600Z/ Lower Clark Fork Region-Missoula/Bitterroot Valleys- Butte/Blackfoot Region-Potomac/Seeley Lake Region- 1201 PM MDT Tue Oct 17 2017 ...WIND ADVISORY REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO MIDNIGHT MDT TONIGHT... * Impacts/Timing: Winds will increase during Tuesday afternoon and are expected to peak during the evening. These winds will cause some tree damage, and difficult driving conditions. Falling trees will be particularly hazardous in recent burn scars. * Winds: West 15 to 25 mph with gusts 30 to 45 mph in the valleys. Gusts in excess of 50 mph in the higher terrain. * Locations impacted include: Evaro Hill, Highway 200 Thompson Falls to Plains, Highway 200 Trout Creek to Heron, I-90 Lookout Pass to Haugan, Bitterroot Valley, Missoula, Butte, Georgetown Lake, Highway 12 Garrison to Elliston, Homestake Pass, MacDonald Pass, Highway 200 Bonner to Greenough, Highway 83 Seeley Lake to Condon, and I-90 East Missoula to Bearmouth $$
154 WWUS75 KMSO 172210 NPWMSO URGENT - WEATHER MESSAGE National Weather Service Missoula MT 410 PM MDT Tue Oct 17 2017 MTZ003-180300- /O.UPG.KMSO.WI.Y.0004.000000T0000Z-171018T0300Z/ /O.NEW.KMSO.HW.W.0001.171017T2210Z-171018T0300Z/ Flathead/Mission Valleys- 410 PM MDT Tue Oct 17 2017 ...HIGH WIND WARNING IN EFFECT UNTIL 9 PM MDT THIS EVENING... The National Weather Service in Missoula has issued a High Wind Warning...which is in effect until 9 PM MDT this evening. The Wind Advisory is no longer in effect. * Impacts/Timing: Strong southwest winds will continue through early evening. These winds will cause some tree damage, difficult driving conditions and large waves on area lakes. Falling trees will be particularly hazardous in recent burn scars. * Winds: Southwest 25 to 35 mph with gusts near 50 mph. * Locations impacted include: Flathead Lake, Flathead Valley, Mission Valley, and Polson $$ MTZ001-002-180300- /O.CON.KMSO.WI.Y.0004.000000T0000Z-171018T0300Z/ Kootenai/Cabinet Region-West Glacier Region- 410 PM MDT Tue Oct 17 2017 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING... * Impacts/Timing: Winds in northwest Montana will increase during Tuesday afternoon and are expected to peak during the late afternoon and evening. These winds will cause some tree damage, difficult driving conditions and large waves on area lakes. Falling trees will be particularly hazardous in recent burn scars. * Winds: West 15 to 25 mph with gusts 30 to 45 mph in the valleys. Gusts in excess of 50 mph in the higher terrain. * Locations impacted include: Highway 2 Kalispell to Libby, Highway 37 Eureka to Libby, Highway 56 Bull Lake Road, Highway 93 Eureka to Whitefish, Bad Rock Canyon, Essex, Highway 83 Bigfork to Swan Lake, Marias Pass, and Polebridge $$ MTZ004-005-007-043-180600- /O.CON.KMSO.WI.Y.0004.000000T0000Z-171018T0600Z/ Lower Clark Fork Region-Missoula/Bitterroot Valleys- Butte/Blackfoot Region-Potomac/Seeley Lake Region- 410 PM MDT Tue Oct 17 2017 ...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... * Impacts/Timing: Winds will increase during Tuesday afternoon and are expected to peak during the evening. These winds will cause some tree damage, and difficult driving conditions. Falling trees will be particularly hazardous in recent burn scars. * Winds: West 15 to 25 mph with gusts 30 to 45 mph in the valleys. Gusts in excess of 50 mph in the higher terrain. * Locations impacted include: Evaro Hill, Highway 200 Thompson Falls to Plains, Highway 200 Trout Creek to Heron, I-90 Lookout Pass to Haugan, Bitterroot Valley, Missoula, Butte, Georgetown Lake, Highway 12 Garrison to Elliston, Homestake Pass, MacDonald Pass, Highway 200 Bonner to Greenough, Highway 83 Seeley Lake to Condon, and I-90 East Missoula to Bearmouth $$
870 WWUS75 KMSO 180112 NPWMSO URGENT - WEATHER MESSAGE National Weather Service Missoula MT 712 PM MDT Tue Oct 17 2017 MTZ005-180600- /O.UPG.KMSO.WI.Y.0004.000000T0000Z-171018T0600Z/ /O.EXB.KMSO.HW.W.0001.000000T0000Z-171018T0600Z/ Missoula/Bitterroot Valleys- 712 PM MDT Tue Oct 17 2017 ...HIGH WIND WARNING IN EFFECT UNTIL MIDNIGHT MDT TONIGHT FOR BITTERROOT VALLEY AND MISSOULA... The National Weather Service in Missoula has issued a High Wind Warning...which is in effect until midnight MDT tonight. The Wind Advisory is no longer in effect. * Impacts/Timing: Strong wind gusts will continue through midnight. These winds will cause some tree damage, power outages, and difficult driving conditions. Falling trees will be particularly hazardous in recent burn scars. * Winds: West 20 to 30 mph with gusts over 50 mph in the valleys. Gusts in excess of 60 mph in the higher terrain. $$ MTZ003-180300- /O.CON.KMSO.HW.W.0001.000000T0000Z-171018T0300Z/ Flathead/Mission Valleys- 712 PM MDT Tue Oct 17 2017 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING... * Impacts/Timing: Strong southwest winds will continue through early evening. These winds will cause some tree damage, difficult driving conditions and large waves on area lakes. Falling trees will be particularly hazardous in recent burn scars. * Winds: Southwest 25 to 35 mph with gusts over 50 mph. * Locations impacted include: Flathead Lake, Flathead Valley, Mission Valley, and Polson $$ MTZ001-002-180300- /O.CON.KMSO.WI.Y.0004.000000T0000Z-171018T0300Z/ Kootenai/Cabinet Region-West Glacier Region- 712 PM MDT Tue Oct 17 2017 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING... * Impacts/Timing: Winds in northwest Montana will increase during Tuesday afternoon and are expected to peak during the late afternoon and evening. These winds will cause some tree damage, difficult driving conditions and large waves on area lakes. Falling trees will be particularly hazardous in recent burn scars. * Winds: West 15 to 25 mph with gusts 30 to 45 mph in the valleys. Gusts in excess of 50 mph in the higher terrain. * Locations impacted include: Highway 2 Kalispell to Libby, Highway 37 Eureka to Libby, Highway 56 Bull Lake Road, Highway 93 Eureka to Whitefish, Bad Rock Canyon, Essex, Highway 83 Bigfork to Swan Lake, Marias Pass, and Polebridge $$ MTZ004-007-043-180600- /O.CON.KMSO.WI.Y.0004.000000T0000Z-171018T0600Z/ Lower Clark Fork Region-Butte/Blackfoot Region- Potomac/Seeley Lake Region- 712 PM MDT Tue Oct 17 2017 ...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... * Impacts/Timing: Winds will increase during Tuesday afternoon and are expected to peak during the evening. These winds will cause some tree damage, and difficult driving conditions. Falling trees will be particularly hazardous in recent burn scars. * Winds: West 15 to 25 mph with gusts 30 to 45 mph in the valleys. Gusts in excess of 50 mph in the higher terrain. * Locations impacted include: Evaro Hill, Highway 200 Thompson Falls to Plains, Highway 200 Trout Creek to Heron, I-90 Lookout Pass to Haugan, Butte, Georgetown Lake, Highway 12 Garrison to Elliston, Homestake Pass, MacDonald Pass, Highway 200 Bonner to Greenough, Highway 83 Seeley Lake to Condon, and I-90 East Missoula to Bearmouth $$
896 WWUS75 KMSO 180256 NPWMSO URGENT - WEATHER MESSAGE National Weather Service Missoula MT 856 PM MDT Tue Oct 17 2017 MTZ003-180400- /O.EXP.KMSO.HW.W.0001.000000T0000Z-171018T0300Z/ Flathead/Mission Valleys- 856 PM MDT Tue Oct 17 2017 ...HIGH WIND WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING... * Locations impacted include: Flathead Lake, Flathead Valley, Mission Valley, and Polson $$ MTZ001-002-180400- /O.EXP.KMSO.WI.Y.0004.000000T0000Z-171018T0300Z/ Kootenai/Cabinet Region-West Glacier Region- 856 PM MDT Tue Oct 17 2017 ...WIND ADVISORY WILL EXPIRE AT 9 PM MDT THIS EVENING... * Locations impacted include: Highway 2 Kalispell to Libby, Highway 37 Eureka to Libby, Highway 56 Bull Lake Road, Highway 93 Eureka to Whitefish, Bad Rock Canyon, Essex, Highway 83 Bigfork to Swan Lake, Marias Pass, and Polebridge $$ MTZ005-180600- /O.CON.KMSO.HW.W.0001.000000T0000Z-171018T0600Z/ Missoula/Bitterroot Valleys- 856 PM MDT Tue Oct 17 2017 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT FOR BITTERROOT VALLEY AND MISSOULA... The National Weather Service in Missoula has issued a High Wind Warning...which is in effect until midnight MDT tonight. * Impacts/Timing: Strong wind gusts will continue through midnight. These winds will cause some tree damage, power outages, and difficult driving conditions. Falling trees will be particularly hazardous in recent burn scars. * Winds: West 20 to 30 mph with gusts over 50 mph in the valleys. Gusts in excess of 60 mph in the higher terrain. $$ MTZ004-007-043-180600- /O.CON.KMSO.WI.Y.0004.000000T0000Z-171018T0600Z/ Lower Clark Fork Region-Butte/Blackfoot Region- Potomac/Seeley Lake Region- 856 PM MDT Tue Oct 17 2017 ...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... * Impacts/Timing: Winds will increase during Tuesday afternoon and are expected to peak during the evening. These winds will cause some tree damage, and difficult driving conditions. Falling trees will be particularly hazardous in recent burn scars. * Winds: West 15 to 25 mph with gusts 30 to 45 mph in the valleys. Gusts in excess of 50 mph in the higher terrain. * Locations impacted include: Evaro Hill, Highway 200 Thompson Falls to Plains, Highway 200 Trout Creek to Heron, I-90 Lookout Pass to Haugan, Butte, Georgetown Lake, Highway 12 Garrison to Elliston, Homestake Pass, MacDonald Pass, Highway 200 Bonner to Greenough, Highway 83 Seeley Lake to Condon, and I-90 East Missoula to Bearmouth $$
015 WWUS75 KMSO 180606 NPWMSO URGENT - WEATHER MESSAGE National Weather Service Missoula MT 1206 AM MDT Wed Oct 18 2017 MTZ005-180715- /O.EXP.KMSO.HW.W.0001.000000T0000Z-171018T0600Z/ Missoula/Bitterroot Valleys- 1206 AM MDT Wed Oct 18 2017 ...HIGH WIND WARNING HAS EXPIRED FOR BITTERROOT VALLEY AND MISSOULA... * Impacts: Winds will be breezy at times overnight but will be much lower compared to earlier in the evening. $$ MTZ004-007-043-180715- /O.EXP.KMSO.WI.Y.0004.000000T0000Z-171018T0600Z/ Lower Clark Fork Region-Butte/Blackfoot Region- Potomac/Seeley Lake Region- 1206 AM MDT Wed Oct 18 2017 ...WIND ADVISORY HAS EXPIRED... * Impacts: Winds will be breezy at times overnight but will be much lower compared to earlier in the evening. * Locations impacted include: Evaro Hill, Highway 200 Thompson Falls to Plains, Highway 200 Trout Creek to Heron, I-90 Lookout Pass to Haugan, Butte, Georgetown Lake, Highway 12 Garrison to Elliston, Homestake Pass, MacDonald Pass, Highway 200 Bonner to Greenough, Highway 83 Seeley Lake to Condon, and I-90 East Missoula to Bearmouth $$
Nearby
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.