Alert archive / Montana / Wind Advisories in 2017
Wind Advisory 1, NWS Missoula, MT
NWS Missoula, MT issued this wind advisory at Feb 28, 2017, 2:14 PM MST for 6 counties in Montana. It took effect at Mar 1, 2017, 11:00 AM MST. It was in force for 9 hr.
The area
The counties it named.
The facts
- Issued
- Feb 28, 2017, 2:14 PM MST (21:14 UTC)
- In effect from
- Mar 1, 2017, 11:00 AM MST
- Expired
- Mar 1, 2017, 8:00 PM MST
- In force
- 9 hr
- Issued by
- NWS Missoula, MT
Counties Deer Lodge County, MT, Granite County, MT, Missoula County, MT, Powell County, MT, Ravalli County, MT, Silver Bow County, MT
The radar
The Missoula radar (KMSX), 87 km from the middle of the area, began a volume at 21:19 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
Great_falls, MT (KTFX), launched 12:00Z, 9.2 hours before the alert went out and 241 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
- 1414 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 163 m²/s²
- 0-3 km storm-relative helicity
- 160 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
880 WWUS75 KMSO 282114 NPWMSO URGENT - WEATHER MESSAGE National Weather Service Missoula MT 214 PM MST Tue Feb 28 2017 MTZ005-012115- /O.NEW.KMSO.WI.Y.0001.170301T1800Z-170302T0300Z/ Missoula/Bitterroot Valleys- 214 PM MST Tue Feb 28 2017 ...WIND ADVISORY IN EFFECT FROM 11 AM TO 8 PM MST WEDNESDAY FOR BITTERROOT VALLEY AND MISSOULA... The National Weather Service in Missoula has issued a Wind Advisory...which is in effect from 11 AM to 8 PM MST Wednesday. * Impacts/Timing: Winds will develop in the late morning, peaking by mid afternoon. Crosswinds will cause difficult driving conditions for high profile vehicles, particularly along Highway 93. Damage to unsecured outdoor items is also possible. * Winds: West 20 to 30 mph with gusts to 45 mph. * Passing showers Wednesday afternoon and evening may cause localized wind gusts over 50 mph and brief periods of low visibility due to blowing snow. $$ MTZ007-012115- /O.NEW.KMSO.WI.Y.0001.170301T1800Z-170302T0300Z/ Butte/Blackfoot Region- 214 PM MST Tue Feb 28 2017 ...WIND ADVISORY IN EFFECT FROM 11 AM TO 8 PM MST WEDNESDAY... The National Weather Service in Missoula has issued a Wind Advisory...which is in effect from 11 AM to 8 PM MST Wednesday. * Impacts/Timing: Winds will develop in the late morning, peaking by mid afternoon. Crosswinds will cause difficult driving conditions for high profile vehicles, particularly along Interstate 90 between Deerlodge and Anaconda. Damage to unsecured outdoor items is also possible. * Winds: West 25 to 30 mph with gusts to 50 mph. * Passing showers Wednesday afternoon and evening may cause localized wind gusts over 50 mph and brief periods of low visibility due to blowing snow. * Locations impacted include: Butte, Georgetown Lake, Highway 12 Garrison to Elliston, Homestake Pass, and MacDonald Pass $$
1 follow-up statement
099 WWUS75 KMSO 012103 NPWMSO URGENT - WEATHER MESSAGE National Weather Service Missoula MT 203 PM MST Wed Mar 1 2017 MTZ005-020300- /O.CON.KMSO.WI.Y.0001.000000T0000Z-170302T0300Z/ Missoula/Bitterroot Valleys- 203 PM MST Wed Mar 1 2017 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING FOR BITTERROOT VALLEY AND MISSOULA... The National Weather Service in Missoula has issued a Wind Advisory...which is in effect from 11 AM to 8 PM MST Wednesday. * Impacts/Timing: Winds will increase through this afternoon, particularly through the Bitterroot valley. Crosswinds will cause difficult driving conditions for high profile vehicles, particularly along Highway 93. * Winds: West 20 to 30 mph with gusts to 45 mph. * Passing showers this afternoon and evening may cause localized wind gusts over 45 mph and brief periods of low visibility due to blowing snow. $$ MTZ007-020300- /O.CON.KMSO.WI.Y.0001.000000T0000Z-170302T0300Z/ Butte/Blackfoot Region- 203 PM MST Wed Mar 1 2017 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING... * Impacts/Timing: Winds will peak by mid afternoon. Crosswinds will cause difficult driving conditions for high profile vehicles, particularly along Interstate 90 between Deerlodge and Anaconda. Damage to unsecured outdoor items is also possible. * Winds: West 25 to 30 mph with gusts to 50 mph. * Passing showers this afternoon and evening may cause localized wind gusts over 50 mph and brief periods of low visibility due to blowing snow. * Locations impacted include: Butte, Georgetown Lake, Highway 12 Garrison to Elliston, Homestake Pass, and MacDonald Pass $$
The office that day
Everything else NWS Missoula, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 28, 2:17 PM MST | Winter Weather Advisory | MSO | Flathead, Granite, Lake, Lincoln, Mineral, Missoula and 3 more | 46 hr |
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.