Alert archive / Montana / Winter Storm Warnings in 2022
Winter Storm Warning 12, NWS Missoula, MT
NWS Missoula, MT issued this winter storm warning at Nov 3, 2022, 12:09 PM MDT for Granite County, Missoula County, Ravalli County, Montana; Clearwater County, Idaho County, Idaho. It took effect at Nov 4, 2022, 12:00 PM MDT. It was in force for 24 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Nov 3, 2022, 12:09 PM MDT (18:09 UTC)
- In effect from
- Nov 4, 2022, 12:00 PM MDT
- Expired
- Nov 5, 2022, 12:00 PM MDT
- In force
- 24 hr
- Issued by
- NWS Missoula, MT
Counties Clearwater County, ID, Idaho County, ID, Granite County, MT, Missoula County, MT, Ravalli County, MT
The radar
The Missoula radar (KMSX), 81 km from the middle of the area, began a volume at 18:10 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, 6.2 hours before the alert went out and 202 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
- 811 m above ground
- 0-6 km bulk shear
- 70 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 46 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Missoula, MT wrote its last area forecast discussion before this winter storm warning went out at Nov 3, 2:37 AM MDT, 9 hours 32 minutes earlier.
Area forecast discussion, Nov 3, 2:37 AM MDT, 9 hours 32 minutes before
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</html>The office that day
Everything else NWS Missoula, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 2, 11:55 PM MDT | Winter Weather Advisory | MSO | Flathead, Lake, Sanders | 8 hr |
| Nov 3, 12:07 PM MDT | High Wind Watch | MSO | Deer Lodge, Flathead, Granite, Lake, Missoula, Powell and 3 more | 20 hr |
| Nov 3, 12:09 PM MDT | Winter Weather Advisory | MSO | Flathead, Granite, Lake, Lincoln, Mineral, Missoula and 2 more | 51 hr |
Nearby
Winter Storm Warnings in Montana, 2022Winter Storm Warnings in Idaho, 2022Every winter storm warning in 2022
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.