Alert archive / Idaho / High Wind Warnings in 2020
High Wind Warning 9, NWS Missoula, MT
NWS Missoula, MT issued this high wind warning at Nov 13, 2020, 7:37 AM PST for Clearwater County, Idaho County, Idaho. It was in force for 8 hr. 5 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
- Nov 13, 2020, 7:37 AM PST (15:37 UTC)
- Expired
- Nov 13, 2020, 3:53 PM PST
- In force
- 8 hr
- Issued by
- NWS Missoula, MT
Counties Clearwater County, ID, Idaho County, ID
The radar
The Missoula radar (KMSX), 148 km from the middle of the area, began a volume at 15:39 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 |
|---|---|---|---|
| Nov 13, 9:10 AM PST | NON-TSTM WND GST 54 | Slate Creek, ID | MESONET STATION SCFI1 SLATE CREEK. |
| Nov 13, 9:15 AM PST | NON-TSTM WND GST 60 | 2 N Grangeville, ID | AWOS STATION KGIC GRANGEVILLE. |
| Nov 13, 9:15 AM PST | NON-TSTM WND GST 60 | 2 N Grangeville, ID | AWOS STATION KGIC GRANGEVILLE WIND GUSTS ABOVE 50 MPH STARTED JUST BEFORE 7 AM PST, WEST OF THE AIRPORT. POWER OUTAGES LASTED THROUGH THE 14TH. POWER POLES WERE SNAPPED IN HALF, MANY BROKEN WINDOWS FROM DEBRIS, TREES DOWN ALL OVER, TRUCKS BLOWN OFF THE ROAD AN |
| Nov 13, 9:30 AM PST | NON-TSTM WND DMG | 3 Ese Fenn, ID | LAW ENFORCEMENT REPORTED 3 POWER POLES DOWN BETWEEN MILEPOSTS 243 AND 244. A FACEBOOK VIDEO FROM THE PUBLIC SHOWED A POWER POLE SNAPPED IN HALF NEAR THIS LOCATION. |
| Nov 13, 11:00 AM PST | NON-TSTM WND GST 70 | 1 Se Grangeville, ID | REPORTED SUSTAINED WINDS OF 60 TO 65 MPH AT TIMES NEAR DRIVE-IN MOVIE THEATER. |
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, 3.6 hours before the alert went out and 172 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
- 655 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 393 m²/s²
- 0-3 km storm-relative helicity
- 449 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
733 WWUS75 KMSO 131537 NPWMSO URGENT - WEATHER MESSAGE National Weather Service Missoula MT 837 AM MST Fri Nov 13 2020 IDZ007-008-140000- /O.NEW.KMSO.HW.W.0009.201113T1537Z-201114T0000Z/ Orofino/Grangeville Region-Lower Hells Canyon/Salmon River Region- 737 AM PST Fri Nov 13 2020 ...HIGH WIND WARNING IN EFFECT UNTIL 4 PM PST THIS AFTERNOON FOR CAMAS PRAIRIE...GRANGEVILLE AND HIGHWAY 95... * WHAT...Southwest winds 25 to 35 mph with gusts up to 60 mph for the Camas Prairie, Grangeville and Highway 95. * WHERE...Camas Prairie, Grangeville and vicinity, Highway 95 Slate Creek to Riggins, and White Bird Grade. * WHEN...Until 4 PM PST this afternoon. * IMPACTS...Damaging winds will blow down trees and power lines. 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. && $$ MTZ003-141545- /O.CON.KMSO.LW.Y.0010.201113T1800Z-201115T0000Z/ Flathead/Mission Valleys- 837 AM MST Fri Nov 13 2020 ...LAKE WIND ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST SATURDAY FOR FLATHEAD LAKE... * WHAT...Waves 1 to 3 feet with south winds 15 to 25 mph with gusts up to 35 mph expected on Flathead Lake. * WHERE...Flathead/Mission Valleys. * WHEN...Until 5 PM MST Saturday. * IMPACTS...Strong winds and rough waves will create hazardous conditions for small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Boaters on area lakes should use extra caution since strong winds and rough waves can overturn small craft. && $$
1 follow-up statement
632 WWUS75 KMSO 132353 NPWMSO URGENT - WEATHER MESSAGE National Weather Service Missoula MT 453 PM MST Fri Nov 13 2020 IDZ007-008-140100- /O.CAN.KMSO.HW.W.0009.000000T0000Z-201114T0000Z/ Orofino/Grangeville Region-Lower Hells Canyon/Salmon River Region- 353 PM PST Fri Nov 13 2020 ...HIGH WIND WARNING IS CANCELLED... Winds have abated to gusts between 20 to 30 mph. This evening showers may develop which have the potential to bring stronger and possibly damaging winds. However, confidence is not high on where or if those showers those will develop. $$ MTZ003-150000- /O.CON.KMSO.LW.Y.0010.000000T0000Z-201115T0000Z/ Flathead/Mission Valleys- 453 PM MST Fri Nov 13 2020 ...LAKE WIND ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST SATURDAY FOR FLATHEAD LAKE... * WHAT...Waves 1 to 3 feet with south winds 15 to 25 mph with gusts up to 35 mph expected on Flathead Lake. * WHERE...Flathead/Mission Valleys. * WHEN...Until 5 PM MST Saturday. * IMPACTS...Strong winds and rough waves will create hazardous conditions for small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Boaters on area lakes should use extra caution since strong winds and rough waves can overturn small craft. && $$
Nearby
High Wind Warnings in Idaho, 2020Every high wind warning in 2020
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.