Alert archive / Washington / Winter Storm Warnings in 2024
Winter Storm Warning 10, NWS Spokane, WA
NWS Spokane, WA issued this winter storm warning at Nov 18, 2024, 2:32 PM PST for 5 counties in Washington. It took effect at Nov 19, 2024, 4:00 PM PST. It was in force for 37 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 18, 2024, 2:32 PM PST (22:32 UTC)
- In effect from
- Nov 19, 2024, 4:00 PM PST
- Expired
- Nov 21, 2024, 5:00 AM PST
- In force
- 37 hr
- Issued by
- NWS Spokane, WA
Counties Chelan County, WA, Douglas County, WA, Ferry County, WA, Grant County, WA, Okanogan County, WA
The radar
The Spokane radar (KOTX), 151 km from the middle of the area, began a volume at 22:32 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
Quillayute State, WA (KUIL), launched 12:00Z, 10.5 hours before the alert went out and 365 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
- 130 J/kg
- Mixed-layer CIN
- -68 J/kg
- Mixed-layer LCL
- 680 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- -12 m²/s²
- 0-3 km storm-relative helicity
- 5 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
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 Spokane, WA wrote its last area forecast discussion before this winter storm warning went out at Nov 18, 9:55 AM PST, 4 hours 37 minutes earlier.
Area forecast discussion, Nov 18, 9:55 AM PST, 4 hours 37 minutes before
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</html>The office that day
Everything else NWS Spokane, WA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 18, 2:35 AM PST | Winter Storm Watch | OTX | Chelan, Douglas, Ferry, Grant, Okanogan | 12 hr |
| Nov 18, 2:32 PM PST | Blizzard Warning | OTX | Chelan | 42 hr |
| Nov 18, 2:32 PM PST | Winter Weather Advisory | OTX | Adams, Asotin, Douglas, Garfield, Grant, Lincoln and 5 more | 67 hr |
| Nov 18, 2:35 AM PST | Winter Weather Advisory | OTX | Benewah, Kootenai, Latah, Shoshone | 19 hr |
Nearby
Winter Storm Warnings in Washington, 2024Every winter storm warning in 2024
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.