Alert archive / Montana / High Wind Warnings in 2021

High Wind Warning 3, NWS Missoula, MT

March 27, 2021Clearwater County, Idaho County, Lemhi County, Idaho; 11 counties in Montana

NWS Missoula, MT issued this high wind warning at Mar 27, 2021, 12:58 PM PDT for Clearwater County, Idaho County, Lemhi County, Idaho; 11 counties in Montana. It took effect at Mar 28, 2021, 2:00 PM PDT. It was in force for 18 hr. 17 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 27, 2021, 12:58 PM PDT (19:58 UTC)
In effect from
Mar 28, 2021, 2:00 PM PDT
Expired
Mar 29, 2021, 8:00 AM PDT
In force
18 hr
Issued by
NWS Missoula, MT

Counties Clearwater County, ID, Idaho County, ID, Lemhi County, ID, 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), 32 km from the middle of the area, began a volume at 20:02 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

TimeReportWhereRemark
Mar 28, 2:07 PM PDTNON-TSTM WND DMG3 Nw Marion, MTTREE DOWN. 143 WITHOUT POWER.
Mar 28, 2:55 PM PDTNON-TSTM WND GST 46La Salle, MTASOS STATION KGPI KALISPELL.
Mar 28, 3:00 PM PDTNON-TSTM WND GST 485 Ene Lonepine, MTMESONET STATION MTM58 4.8 E LONEPINE (MT-MESO).
Mar 28, 3:31 PM PDTNON-TSTM WND GST 463 Ne Kila, MTMESONET STATION DW0711 KILA.
Mar 28, 3:53 PM PDTNON-TSTM WND DMG6 Nne Marion, MTTREE DOWN, 277 WITHOUT POWER. ASHLEY LAKE ROAD.
Mar 28, 4:15 PM PDTNON-TSTM WND GST 462 Wnw Butte, MTMESONET STATION MTM46 1.5 W BUTTE (MT-MESO).
Mar 28, 4:30 PM PDTNON-TSTM WND DMG1 E Coram, MTTREE DOWN. 71 WITHOUT POWER.
Mar 28, 4:31 PM PDTNON-TSTM WND GST 493 Ne Kila, MTMESONET STATION DW0711 KILA.
Mar 28, 7:58 PM PDTNON-TSTM WND GST 482 Ene Stevensville, MTMESONET STATION AV610 STEVENSVILLE.
Mar 28, 8:34 PM PDTNON-TSTM WND GST 506 Ne Cottonwood, ID
Mar 28, 9:26 PM PDTNON-TSTM WND GST 573 Wsw Georgetown, MTMESONET STATION MTGTL 2.7 W GEORGETOWN (MT DOT).
Mar 28, 9:51 PM PDTNON-TSTM WND GST 616 Se North Fork, IDMESONET STATION KRCI1 KRILEY CREEK RAWS.
Mar 28, 9:51 PM PDTNON-TSTM WND GST 6311 Wsw Shoup, IDMESONET STATION SKFI1 SKULL GULCH.
Mar 28, 10:09 PM PDTNON-TSTM WND GST 7513 Ene Sula, MTMESONET STATION TEPM8 TEPEE PT.
Mar 28, 10:47 PM PDTNON-TSTM WND GST 663 Ene Fenn, IDMESONET STATION FW6604 GRANGEVILLE.
Mar 28, 10:51 PM PDTNON-TSTM WND GST 866 Se North Fork, IDMESONET STATION KRCI1 KRILEY CREEK RAWS.
Mar 28, 11:30 PM PDTNON-TSTM WND GST 632 Wnw Butte, MTMESONET STATION MTM46 1.5 W BUTTE (MT-MESO).

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, 8.0 hours before the alert went out and 194 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.

Skew-T log-pSkew-T log-p diagram, Spokane, WA at 12:00Z on 2021-03-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Spokane, WA at 12:00Z on 2021-03-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 48 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1278 m above ground
0-6 km bulk shear
66 kt
0-1 km storm-relative helicity
48 m²/s²
0-3 km storm-relative helicity
181 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

841 
WWUS75 KMSO 271958
NPWMSO

URGENT - WEATHER MESSAGE
National Weather Service Missoula MT
158 PM MDT Sat Mar 27 2021

MTZ002-282000-
/O.UPG.KMSO.HW.A.0004.210328T2100Z-210329T1200Z/
/O.NEW.KMSO.HW.W.0003.210328T2100Z-210329T1200Z/
West Glacier Region-
158 PM MDT Sat Mar 27 2021

...HIGH WIND WARNING IN EFFECT FROM 3 PM SUNDAY TO 6 AM MDT
MONDAY...

* WHAT...Southwest winds 35 to 45 mph with gusts up to 65 mph
  expected. The combination of heavy snow and strong wind late
  Sunday night will produce low visibility with blowing snow and
  slick conditions at Marias Pass. Four to seven inches of snow 
  is expected at the pass.

* WHERE...Bad Rock Canyon, Essex, Highway 83 Bigfork to Swan 
  Lake, Marias Pass, and Polebridge.

* WHEN...From 3 PM Sunday to 6 AM MDT Monday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

MTZ001-282000-
/O.UPG.KMSO.HW.A.0004.210328T2100Z-210329T1200Z/
/O.NEW.KMSO.HW.W.0003.210328T2100Z-210329T1200Z/
Kootenai/Cabinet Region-
158 PM MDT Sat Mar 27 2021

...HIGH WIND WARNING IN EFFECT FROM 3 PM SUNDAY TO 6 AM MDT
MONDAY...

* WHAT...Southwest winds 30 to 45 mph with gusts up to 60 mph
  expected. The strongest winds will occur late evening with the
  cold front passage.

* WHERE...Highway 2 Kalispell to Libby, Highway 37 Eureka to 
  Libby, Highway 56 Bull Lake Road, and Highway 93 Eureka to 
  Whitefish.

* WHEN...From 3 PM Sunday to 6 AM MDT Monday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

MTZ003-282000-
/O.UPG.KMSO.HW.A.0004.210328T2100Z-210329T1200Z/
/O.NEW.KMSO.HW.W.0003.210328T2100Z-210329T1200Z/
Flathead/Mission Valleys-
158 PM MDT Sat Mar 27 2021

...HIGH WIND WARNING IN EFFECT FROM 3 PM SUNDAY TO 6 AM MDT
MONDAY...

* WHAT...Southwest winds 30 to 45 mph with gusts up to 60 mph
  expected. The strongest winds will accompany the cold front
  later in the evening.

* WHERE...Flathead Lake, Flathead Valley, Mission Valley, and 
  Polson.

* WHEN...From 3 PM Sunday to 6 AM MDT Monday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

MTZ004-282000-
/O.UPG.KMSO.HW.A.0004.210328T2100Z-210329T1200Z/
/O.NEW.KMSO.HW.W.0003.210328T2100Z-210329T1200Z/
Lower Clark Fork Region-
158 PM MDT Sat Mar 27 2021

...HIGH WIND WARNING IN EFFECT FROM 3 PM SUNDAY TO 6 AM MDT
MONDAY...

* WHAT...Southwest winds 30 to 45 mph with gusts up to 60 mph
  expected. The strongest winds will occur with the cold front
  passage later in the evening. A brief period of heavy snow is
  expected at Lookout Pass. Snow accumulations at the pass could
  range between 3 and 5 inches.

* WHERE...Evaro Hill, Highway 200 Thompson Falls to Plains, 
  Highway 200 Trout Creek to Heron, and I-90 Lookout Pass to 
  Haugan.

* WHEN...From 3 PM Sunday to 6 AM MDT Monday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

MTZ043-282000-
/O.UPG.KMSO.HW.A.0004.210329T0000Z-210329T1800Z/
/O.NEW.KMSO.HW.W.0003.210329T0300Z-210329T1200Z/
Potomac/Seeley Lake Region-
158 PM MDT Sat Mar 27 2021

...HIGH WIND WARNING IN EFFECT FROM 9 PM SUNDAY TO 6 AM MDT
MONDAY...

* WHAT...West winds 35 to 45 mph with gusts up to 60 mph expected.
  Snow accumulations between 1 and 2 inches is expected with the
  cold front and roads could be slick near daybreak.

* WHERE...Highway 200 Bonner to Greenough, Highway 83 Seeley 
  Lake to Condon, and I-90 East Missoula to Bearmouth.

* WHEN...From 9 PM Sunday to 6 AM MDT Monday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

MTZ005-282000-
/O.UPG.KMSO.HW.A.0004.210329T0000Z-210329T1800Z/
/O.NEW.KMSO.HW.W.0003.210329T0300Z-210329T1200Z/
Missoula/Bitterroot Valleys-
158 PM MDT Sat Mar 27 2021

...HIGH WIND WARNING IN EFFECT FROM 9 PM SUNDAY TO 6 AM MDT
MONDAY...

* WHAT...Southwest winds 30 to 40 mph with gusts up to 55 mph
  expected. Higher gusts are expected between Florence and
  Stevensville.

* WHERE...Missoula/Bitterroot Valleys.

* WHEN...From 9 PM Sunday to 6 AM MDT Monday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

MTZ006-282000-
/O.UPG.KMSO.HW.A.0004.210329T0000Z-210329T1800Z/
/O.NEW.KMSO.HW.W.0003.210329T0200Z-210329T1500Z/
Bitterroot/Sapphire Mountains-
158 PM MDT Sat Mar 27 2021

...HIGH WIND WARNING IN EFFECT FROM 8 PM SUNDAY TO 9 AM MDT
MONDAY...

* WHAT...West winds 35 to 45 mph with gusts up to 65 mph expected.
  Gusts to 55 mph are expected at Lolo Pass and Lost Trail Pass.
  Between one to two hours of heavy snow, blowing snow and the
  strongest winds will accompany the cold front passage overnight.
  A dramatic temperature drop will cause roads to freeze and
  travel could become treacherous. Four to seven inches is
  expected at Lolo Pass...two to four inches is expected at Lost
  Trail. 

* WHERE...Bitterroot/Sapphire Mountains.

* WHEN...From 8 PM Sunday to 9 AM MDT Monday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

MTZ007-282000-
/O.UPG.KMSO.HW.A.0004.210329T0000Z-210329T1800Z/
/O.NEW.KMSO.HW.W.0003.210329T0200Z-210329T1500Z/
Butte/Blackfoot Region-
158 PM MDT Sat Mar 27 2021

...HIGH WIND WARNING IN EFFECT FROM 8 PM SUNDAY TO 9 AM MDT
MONDAY...

* WHAT...Southwest to West winds 35 to 45 mph with gusts up to 60
  mph expected. Between one to two hours of heavy snow, blowing
  snow and the strongest winds will accompany the cold front
  passage overnight. A dramatic temperature drop will cause roads
  to freeze and travel could become treacherous. One to three
  inches of snowfall is expected.

* WHERE...Butte, Georgetown Lake, Highway 12 Garrison to 
  Elliston, Homestake Pass, and MacDonald Pass.

* WHEN...From 8 PM Sunday to 9 AM MDT Monday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

IDZ009-282000-
/O.NEW.KMSO.HW.W.0003.210329T0600Z-210329T1500Z/
Western Lemhi County-
158 PM MDT Sat Mar 27 2021

...HIGH WIND WARNING IN EFFECT FROM MIDNIGHT SUNDAY NIGHT TO 9 AM
MDT MONDAY...

* WHAT...West winds 35 to 45 mph with gusts up to 60 mph expected.
  Between one to two hours of heavy snow, blowing snow and the
  strongest winds will accompany the cold front passage overnight.
  A dramatic temperature drop will cause roads to freeze and
  travel could become treacherous. Two to four inches of snow is
  expected at Williams Creek Summit.

* WHERE...Western Lemhi County including Williams Creek Summit.

* WHEN...From midnight Sunday night to 9 AM MDT Monday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

IDZ010-282000-
/O.NEW.KMSO.HW.W.0003.210329T0600Z-210329T1500Z/
Eastern Lemhi County-
158 PM MDT Sat Mar 27 2021

...HIGH WIND WARNING IN EFFECT FROM MIDNIGHT SUNDAY NIGHT TO 9 AM
MDT MONDAY...

* WHAT...West winds 35 to 45 mph with gusts up to 60 mph expected.
  A brief period of heavy snow will occur with the cold front.
  Some roadways may become slick near daybreak Monday.

* WHERE...Bannock Pass, Highway 28 Tendoy to Lone Pine, Highway 
  93 Lost Trail Pass to Gibbonsville, Lemhi Pass, and Salmon.

* WHEN...From midnight Sunday night to 9 AM MDT Monday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

IDZ005-282000-
/O.NEW.KMSO.HW.W.0003.210329T0300Z-210329T1200Z/
Northern Clearwater Mountains-
1258 PM PDT Sat Mar 27 2021

...HIGH WIND WARNING IN EFFECT FROM 8 PM SUNDAY TO 5 AM PDT
MONDAY...

* WHAT...West winds 35 to 45 mph with gusts up to 55 mph 
  expected. Two to four inches of snow accumulation is expected.

* WHERE...Elk River, Highway 11 Pierce to Headquarters, and 
  Pierce.

* WHEN...From 8 PM Sunday to 5 AM PDT Monday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

IDZ007-282000-
/O.NEW.KMSO.HW.W.0003.210329T0300Z-210329T1200Z/
Orofino/Grangeville Region-
1258 PM PDT Sat Mar 27 2021

...HIGH WIND WARNING IN EFFECT FROM 8 PM SUNDAY TO 5 AM PDT
MONDAY...

* WHAT...South to west winds 35 to 45 mph with gusts up to 60 mph
  expected. One to two inches of snow is expected in the
  Grangemont Road area.

* WHERE...Camas Prairie, Grangeville and vicinity, and Greer 
  Grade.

* WHEN...From 8 PM Sunday to 5 AM PDT Monday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

IDZ006-282000-
/O.NEW.KMSO.HW.W.0003.210329T0300Z-210329T1200Z/
Southern Clearwater Mountains-
1258 PM PDT Sat Mar 27 2021

...HIGH WIND WARNING IN EFFECT FROM 8 PM SUNDAY TO 5 AM PDT
MONDAY...

* WHAT...West winds 30 to 45 mph with gusts up to 60 mph expected.
  Between one to two hours of heavy snow, blowing snow and the
  strongest winds will accompany the cold front passage overnight.
  A dramatic temperature drop will cause roads to freeze and
  travel could become treacherous. Snow amounts will range from 2
  to 7 inches.

* WHERE...Dixie, Elk City, and Highway 12 Lowell to Lolo Pass.

* WHEN...From 8 PM Sunday to 5 AM PDT Monday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$
2 follow-up statements
717 
WWUS75 KMSO 281018
NPWMSO

URGENT - WEATHER MESSAGE
National Weather Service Missoula MT
418 AM MDT Sun Mar 28 2021

MTZ002-291030-
/O.CON.KMSO.HW.W.0003.210328T2100Z-210329T1200Z/
West Glacier Region-
418 AM MDT Sun Mar 28 2021

...HIGH WIND WARNING REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON
TO 6 AM MDT MONDAY...

* WHAT...Southwest winds 35 to 45 mph with gusts up to 70 mph
  expected. The combination of heavy snow and strong wind late
  Sunday night will produce low visibility with blowing snow and
  slick conditions at Marias Pass. 4 to 7 inches of snow is 
  expected at the pass.

* WHERE...Bad Rock Canyon, Essex, Highway 83 Bigfork to Swan 
  Lake, Marias Pass, and Polebridge.

* WHEN...From 3 PM Sunday to 6 AM MDT Monday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

MTZ001-291030-
/O.CON.KMSO.HW.W.0003.210328T2100Z-210329T1200Z/
Kootenai/Cabinet Region-
418 AM MDT Sun Mar 28 2021

...HIGH WIND WARNING REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON
TO 6 AM MDT MONDAY...

* WHAT...Southwest winds 30 to 45 mph with gusts up to 60 mph
  expected. Wind gusts up to 70 mph are possible along US Highway
  2 between Happys Inn and Kila and along Montana Highway 56 near
  and south of Bull Lake. The strongest winds will occur late 
  Sunday evening with the cold frontal passage.

* WHERE...Highway 2 Kalispell to Libby, Highway 37 Eureka to 
  Libby, Highway 56 Bull Lake Road, and Highway 93 Eureka to 
  Whitefish.

* WHEN...From 3 PM Sunday to 6 AM MDT Monday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

MTZ003-291030-
/O.CON.KMSO.HW.W.0003.210328T2100Z-210329T1200Z/
Flathead/Mission Valleys-
418 AM MDT Sun Mar 28 2021

...HIGH WIND WARNING REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON
TO 6 AM MDT MONDAY...

* WHAT...Southwest winds 30 to 45 mph with gusts up to 60 mph 
  expected. The strongest winds will accompany the cold front 
  later in the evening.

* WHERE...Flathead Lake, Flathead Valley, Mission Valley, and 
  Polson.

* WHEN...From 3 PM Sunday to 6 AM MDT Monday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

MTZ004-291030-
/O.CON.KMSO.HW.W.0003.210328T2100Z-210329T1200Z/
Lower Clark Fork Region-
418 AM MDT Sun Mar 28 2021

...HIGH WIND WARNING REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON
TO 6 AM MDT MONDAY...

* WHAT...Southwest winds 30 to 45 mph with gusts up to 60 mph
  expected. The strongest winds will occur with the cold front
  passage later in the evening. A brief period of heavy snow is
  expected at Lookout Pass. 2 to 5 inches of snow is expected at 
  the pass.

* WHERE...Evaro Hill, Highway 200 Thompson Falls to Plains, 
  Highway 200 Trout Creek to Heron, and I-90 Lookout Pass to 
  Haugan.

* WHEN...From 3 PM Sunday to 6 AM MDT Monday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

MTZ043-291030-
/O.CON.KMSO.HW.W.0003.210329T0300Z-210329T1200Z/
Potomac/Seeley Lake Region-
418 AM MDT Sun Mar 28 2021

...HIGH WIND WARNING REMAINS IN EFFECT FROM 9 PM THIS EVENING TO
6 AM MDT MONDAY...

* WHAT...West winds 35 to 45 mph with gusts up to 60 mph expected.
  Snow accumulations of 1 and 3 inches are expected with the cold
  front and roads could be slick near daybreak.

* WHERE...Highway 200 Bonner to Greenough, Highway 83 Seeley 
  Lake to Condon, and I-90 East Missoula to Bearmouth.

* WHEN...From 9 PM Sunday to 6 AM MDT Monday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

MTZ005-291030-
/O.CON.KMSO.HW.W.0003.210329T0300Z-210329T1200Z/
Missoula/Bitterroot Valleys-
418 AM MDT Sun Mar 28 2021

...HIGH WIND WARNING REMAINS IN EFFECT FROM 9 PM THIS EVENING TO
6 AM MDT MONDAY...

* WHAT...Southwest winds 30 to 40 mph with gusts up to 55 mph 
  expected. Higher gusts are expected between Florence and 
  Stevensville.

* WHERE...Missoula/Bitterroot Valleys.

* WHEN...From 9 PM Sunday to 6 AM MDT Monday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

MTZ006-291030-
/O.CON.KMSO.HW.W.0003.210329T0200Z-210329T1500Z/
Bitterroot/Sapphire Mountains-
418 AM MDT Sun Mar 28 2021

...HIGH WIND WARNING REMAINS IN EFFECT FROM 8 PM THIS EVENING TO
9 AM MDT MONDAY...

* WHAT...West winds 35 to 45 mph with gusts up to 65 mph expected.
  Gusts to 55 mph are expected at Lolo Pass and Lost Trail Pass.
  Between one to two hours of heavy snow, blowing snow and the
  strongest winds will accompany the cold front passage overnight.
  A dramatic temperature drop will cause roads to freeze and
  travel could become treacherous. 4 to 7 inches is expected at
  Lolo Pass, with 3 to 5 inches at Lost Trail Pass. 

* WHERE...Bitterroot/Sapphire Mountains.

* WHEN...From 8 PM Sunday to 9 AM MDT Monday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

MTZ007-291030-
/O.CON.KMSO.HW.W.0003.210329T0200Z-210329T1500Z/
Butte/Blackfoot Region-
418 AM MDT Sun Mar 28 2021

...HIGH WIND WARNING REMAINS IN EFFECT FROM 8 PM THIS EVENING TO
9 AM MDT MONDAY...

* WHAT...Southwest to West winds 35 to 45 mph with gusts up to 60
  mph expected. Between one to two hours of heavy snow, blowing
  snow and the strongest winds will accompany the cold front
  passage overnight. A dramatic temperature drop will cause roads
  to freeze and travel could become treacherous. Up to 2 inches of
  snow is expected. 

* WHERE...Butte, Georgetown Lake, Highway 12 Garrison to 
  Elliston, Homestake Pass, and MacDonald Pass.

* WHEN...From 8 PM Sunday to 9 AM MDT Monday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

IDZ009-291030-
/O.CON.KMSO.HW.W.0003.210329T0600Z-210329T1500Z/
Western Lemhi County-
418 AM MDT Sun Mar 28 2021

...HIGH WIND WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO
9 AM MDT MONDAY...

* WHAT...West winds 35 to 45 mph with gusts up to 60 mph expected.
  Between one to two hours of heavy snow, blowing snow and the
  strongest winds will accompany the cold front passage overnight.
  A dramatic temperature drop will cause roads to freeze and
  travel could become treacherous. 2 to 4 inches of snow is 
  expected at Williams Creek Summit.

* WHERE...Western Lemhi County including Williams Creek Summit.

* WHEN...From midnight Sunday night to 9 AM MDT Monday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

IDZ010-291030-
/O.CON.KMSO.HW.W.0003.210329T0600Z-210329T1500Z/
Eastern Lemhi County-
418 AM MDT Sun Mar 28 2021

...HIGH WIND WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO
9 AM MDT MONDAY...

* WHAT...West winds 35 to 45 mph with gusts up to 60 mph 
  expected. A brief period of heavy snow will occur with the 
  cold front. Some roadways may become slick near daybreak 
  Monday.

* WHERE...Bannock Pass, Highway 28 Tendoy to Lone Pine, Highway 
  93 Lost Trail Pass to Gibbonsville, Lemhi Pass, and Salmon.

* WHEN...From midnight Sunday night to 9 AM MDT Monday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

IDZ005-291030-
/O.CON.KMSO.HW.W.0003.210329T0300Z-210329T1200Z/
Northern Clearwater Mountains-
318 AM PDT Sun Mar 28 2021

...HIGH WIND WARNING REMAINS IN EFFECT FROM 8 PM THIS EVENING TO
5 AM PDT MONDAY...

* WHAT...West winds 35 to 45 mph with gusts up to 55 mph expected.
  2 to 4 inches of snow accumulation is expected.

* WHERE...Elk River, Highway 11 Pierce to Headquarters, and 
  Pierce.

* WHEN...From 8 PM Sunday to 5 AM PDT Monday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

IDZ007-291030-
/O.CON.KMSO.HW.W.0003.210329T0300Z-210329T1200Z/
Orofino/Grangeville Region-
318 AM PDT Sun Mar 28 2021

...HIGH WIND WARNING REMAINS IN EFFECT FROM 8 PM THIS EVENING TO
5 AM PDT MONDAY...

* WHAT...South to west winds 35 to 45 mph with gusts up to 60 mph
  expected. 1 to 2 inches of snow is expected in the Grangemont 
  Road area.

* WHERE...Camas Prairie, Grangeville and vicinity, and Greer 
  Grade.

* WHEN...From 8 PM Sunday to 5 AM PDT Monday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

IDZ006-291030-
/O.CON.KMSO.HW.W.0003.210329T0300Z-210329T1200Z/
Southern Clearwater Mountains-
318 AM PDT Sun Mar 28 2021

...HIGH WIND WARNING REMAINS IN EFFECT FROM 8 PM THIS EVENING TO
5 AM PDT MONDAY...

* WHAT...West winds 30 to 45 mph with gusts up to 60 mph 
  expected. Between one to two hours of heavy snow, blowing snow 
  and the strongest winds will accompany the cold front passage 
  overnight. A dramatic temperature drop will cause roads to 
  freeze and travel could become treacherous. Snow amounts will 
  range from 2 to 7 inches.

* WHERE...Dixie, Elk City, and Highway 12 Lowell to Lolo Pass.

* WHEN...From 8 PM Sunday to 5 AM PDT Monday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$
436 
WWUS75 KMSO 290846
NPWMSO

URGENT - WEATHER MESSAGE
National Weather Service Missoula MT
246 AM MDT Mon Mar 29 2021

IDZ005-007-MTZ001-003>005-043-291000-
/O.CAN.KMSO.HW.W.0003.000000T0000Z-210329T1200Z/
Northern Clearwater Mountains-Orofino/Grangeville Region-
Kootenai/Cabinet Region-Flathead/Mission Valleys-
Lower Clark Fork Region-Missoula/Bitterroot Valleys-
Potomac/Seeley Lake Region-
246 AM MDT Mon Mar 29 2021 /146 AM PDT Mon Mar 29 2021/

...HIGH WIND WARNING IS CANCELLED...

Westerly wind gusts of 30 to 40 mph will continue through the
morning hours. 

$$

MTZ002-291200-
/O.CON.KMSO.HW.W.0003.000000T0000Z-210329T1200Z/
West Glacier Region-
246 AM MDT Mon Mar 29 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 AM MDT EARLY THIS
MORNING...

* WHAT...Southwest winds 35 to 45 mph with gusts up to 70 mph
  expected. 

* WHERE...Bad Rock Canyon, Essex, Highway 83 Bigfork to Swan 
  Lake, Marias Pass, and Polebridge.

* WHEN...From 3 PM Sunday to 6 AM MDT Monday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

MTZ006-291500-
/O.CON.KMSO.HW.W.0003.000000T0000Z-210329T1500Z/
Bitterroot/Sapphire Mountains-
246 AM MDT Mon Mar 29 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 AM MDT THIS
MORNING...

* WHAT...West winds 35 to 45 mph with gusts up to 65 mph expected.
  Gusts to 55 mph are expected at Lolo Pass and Lost Trail Pass.

* WHERE...Bitterroot/Sapphire Mountains.

* WHEN...From 8 PM Sunday to 9 AM MDT Monday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

MTZ007-291500-
/O.CON.KMSO.HW.W.0003.000000T0000Z-210329T1500Z/
Butte/Blackfoot Region-
246 AM MDT Mon Mar 29 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 AM MDT THIS
MORNING...

* WHAT...Southwest to West winds 35 to 45 mph with gusts up to 60
  mph expected.

* WHERE...Butte, Georgetown Lake, Highway 12 Garrison to 
  Elliston, Homestake Pass, and MacDonald Pass.

* WHEN...From 8 PM Sunday to 9 AM MDT Monday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

IDZ009-291500-
/O.CON.KMSO.HW.W.0003.000000T0000Z-210329T1500Z/
Western Lemhi County-
246 AM MDT Mon Mar 29 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 AM MDT THIS
MORNING...

* WHAT...West winds 35 to 45 mph with gusts up to 60 mph expected.

* WHERE...Western Lemhi County including Williams Creek Summit.

* WHEN...From midnight Sunday night to 9 AM MDT Monday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

IDZ010-291500-
/O.CON.KMSO.HW.W.0003.000000T0000Z-210329T1500Z/
Eastern Lemhi County-
246 AM MDT Mon Mar 29 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 AM MDT THIS
MORNING...

* WHAT...West winds 35 to 45 mph with gusts up to 60 mph expected.

* WHERE...Bannock Pass, Highway 28 Tendoy to Lone Pine, Highway 
  93 Lost Trail Pass to Gibbonsville, Lemhi Pass, and Salmon.

* WHEN...From midnight Sunday night to 9 AM MDT Monday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

IDZ006-291200-
/O.CON.KMSO.HW.W.0003.000000T0000Z-210329T1200Z/
Southern Clearwater Mountains-
146 AM PDT Mon Mar 29 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 AM PDT EARLY THIS
MORNING...

* WHAT...West winds 30 to 45 mph with gusts up to 60 mph expected.
* WHERE...Dixie, Elk City, and Highway 12 Lowell to Lolo Pass.

* WHEN...From 8 PM Sunday to 5 AM PDT Monday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

The office that day

Everything else NWS Missoula, MT issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 27, 10:43 AM PDTRed Flag WarningMSOBeaverhead, Jefferson, Madison, Silver Bow31 hr

Nearby

High Wind Warnings in Montana, 2021High Wind Warnings in Idaho, 2021Every high wind warning in 2021

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.