Alert archive / Montana / Wind Advisories in 2018
Wind Advisory 4, NWS Missoula, MT
NWS Missoula, MT issued this wind advisory at Jun 8, 2018, 2:18 PM MDT for Lemhi County, Idaho; 4 counties in Montana. It took effect at Jun 9, 2018, 12:00 PM MDT. It was in force for 9 hr.
The area
The counties it named.
The facts
- Issued
- Jun 8, 2018, 2:18 PM MDT (20:18 UTC)
- In effect from
- Jun 9, 2018, 12:00 PM MDT
- Expired
- Jun 9, 2018, 9:00 PM MDT
- In force
- 9 hr
- Issued by
- NWS Missoula, MT
Counties Lemhi County, ID, Deer Lodge County, MT, Granite County, MT, Powell County, MT, Silver Bow County, MT
The radar
The Missoula radar (KMSX), 127 km from the middle of the area, began a volume at 20:18 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, 8.3 hours before the alert went out and 254 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
- 1820 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 75 m²/s²
- 0-3 km storm-relative helicity
- 91 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
017 WWUS75 KMSO 082018 NPWMSO URGENT - WEATHER MESSAGE National Weather Service Missoula MT 218 PM MDT Fri Jun 8 2018 IDZ010-092030- /O.NEW.KMSO.WI.Y.0004.180609T1800Z-180610T0300Z/ Eastern Lemhi County- 218 PM MDT Fri Jun 8 2018 ...WIND ADVISORY IN EFFECT FROM NOON TO 9 PM MDT SATURDAY... The National Weather Service in Missoula has issued a Wind Advisory...which is in effect from noon to 9 PM MDT Saturday. * Impacts/Timing: South winds will intensify across Lemhi County midday Saturday through Saturday evening. Also, outflow winds from area thunderstorms will create an erratic nature to the gusts. Power outages and difficult crosswinds for motorists, particularly along Highway 28 south of Salmon, will be the main impact. * Winds: South 25 to 35 mph, gusting to 50 mph. * Locations impacted include: Bannock Pass, Highway 28 Tendoy to Lone Pine, Highway 93 Lost Trail Pass to Gibbonsville, Lemhi Pass, and Salmon $$ MTZ007-092030- /O.NEW.KMSO.WI.Y.0004.180609T1800Z-180610T0300Z/ Butte/Blackfoot Region- 218 PM MDT Fri Jun 8 2018 ...WIND ADVISORY IN EFFECT FROM NOON TO 9 PM MDT SATURDAY... The National Weather Service in Missoula has issued a Wind Advisory...which is in effect from noon to 9 PM MDT Saturday. * Impacts/Timing: Southwest winds will intensify across the Butte/Blackfoot region of southwest Montana midday Saturday through Saturday evening. Also, outflow winds from area thunderstorms will create an erratic nature to the gusts. Power outages and hazardous crosswinds for motorists, particularly along Interstate 90 and Highway 12, will be the main impact. * Winds: Southwest 25 to 35 mph, gusting to 50 mph. * Locations impacted include: Butte, Georgetown Lake, Highway 12 Garrison to Elliston, Homestake Pass, and MacDonald Pass $$
1 follow-up statement
373 WWUS75 KMSO 091149 NPWMSO URGENT - WEATHER MESSAGE National Weather Service Missoula MT 549 AM MDT Sat Jun 9 2018 IDZ010-100300- /O.CON.KMSO.WI.Y.0004.180609T1800Z-180610T0300Z/ Eastern Lemhi County- 549 AM MDT Sat Jun 9 2018 ...WIND ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS EVENING... * Impacts/Timing: South winds will intensify across Lemhi County midday today through this evening. Also, outflow winds from area thunderstorms will create an erratic nature to the gusts. Power outages and difficult crosswinds for motorists, particularly along Highway 28 south of Salmon, will be the main impact. * Winds: South 25 to 35 mph, gusting to 50 mph. * Locations impacted include: Bannock Pass, Highway 28 Tendoy to Lone Pine, Highway 93 Lost Trail Pass to Gibbonsville, Lemhi Pass, and Salmon $$ MTZ007-100300- /O.CON.KMSO.WI.Y.0004.180609T1800Z-180610T0300Z/ Butte/Blackfoot Region- 549 AM MDT Sat Jun 9 2018 ...WIND ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS EVENING... * Impacts/Timing: Southwest winds will intensify across the Butte/Blackfoot region of southwest Montana midday today through this evening. Also, outflow winds from area thunderstorms will create an erratic nature to the gusts. Power outages and hazardous crosswinds for motorists, particularly along Interstate 90 and Highway 12, will be the main impact. * Winds: Southwest 25 to 35 mph, gusting to 50 mph. * Locations impacted include: Butte, Georgetown Lake, Highway 12 Garrison to Elliston, Homestake Pass, and MacDonald Pass $$
The office that day
Everything else NWS Missoula, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 7, 8:45 PM MDT | Special Weather Statement | MSO | Mineral | 30 min |
Nearby
Wind Advisories in Montana, 2018Wind Advisories in Idaho, 2018Every wind advisory 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.