Alert archive / Washington / Winter Weather Advisories in 2012
Winter Weather Advisory 4, NWS Spokane, WA
NWS Spokane, WA issued this winter weather advisory at Jan 19, 2012, 6:44 AM PST for 9 counties in Washington; Bonner County, Boundary County, Kootenai County, Idaho. It was in force for 15 hr.
The area
The counties it named.
The facts
- Issued
- Jan 19, 2012, 6:44 AM PST (14:44 UTC)
- Expired
- Jan 19, 2012, 9:59 PM PST
- In force
- 15 hr
- Issued by
- NWS Spokane, WA
Counties Bonner County, ID, Boundary County, ID, Kootenai County, ID, Adams County, WA, Chelan County, WA, Douglas County, WA, Grant County, WA, Lincoln County, WA, Okanogan County, WA, Pend Oreille County, WA, Spokane County, WA, Stevens County, WA
The radar
The Spokane radar (KOTX), 53 km from the middle of the area, began a volume at 14:42 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, 2.7 hours before the alert went out and 139 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
- 477 m above ground
- 0-6 km bulk shear
- 105 kt
- 0-1 km storm-relative helicity
- 290 m²/s²
- 0-3 km storm-relative helicity
- 420 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 weather advisory 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 weather advisory went out at Jan 19, 5:25 AM PST, 1 hour 19 minutes earlier.
Area forecast discussion, Jan 19, 5:25 AM PST, 1 hour 19 minutes before
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<h1 id="headline">This service is currently unavailable.</h1>
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The site you requested is temporarily down for maintenance or an unexpected outage.
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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 |
|---|---|---|---|---|
| Jan 19, 4:23 AM PST | Winter Storm Watch | OTX | Chelan, Douglas, Ferry, Grant, Okanogan, Pend Oreille and 2 more | 24 hr |
Nearby
Winter Weather Advisories in Washington, 2012Winter Weather Advisories in Idaho, 2012Every winter weather advisory in 2012
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.