Alert archive / Washington / Winter Weather Advisories in 2014
Winter Weather Advisory 13, NWS Spokane, WA
NWS Spokane, WA issued this winter weather advisory at Feb 15, 2014, 4:24 AM PST for Chelan County, Douglas County, Grant County, Washington. It took effect at Feb 15, 2014, 12:00 PM PST. It was in force for 19 hr.
The area
The counties it named.
The facts
- Issued
- Feb 15, 2014, 4:24 AM PST (12:24 UTC)
- In effect from
- Feb 15, 2014, 12:00 PM PST
- Expired
- Feb 16, 2014, 6:32 AM PST
- In force
- 19 hr
- Issued by
- NWS Spokane, WA
Counties Chelan County, WA, Douglas County, WA, Grant County, WA
The radar
The Spokane radar (KOTX), 172 km from the middle of the area, began a volume at 12:22 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, 0.4 hours before the alert went out and 344 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
- 707 m above ground
- 0-6 km bulk shear
- 63 kt
- 0-1 km storm-relative helicity
- 189 m²/s²
- 0-3 km storm-relative helicity
- 235 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 Feb 15, 3:08 AM PST, 1 hour 16 minutes earlier.
Area forecast discussion, Feb 15, 3:08 AM PST, 1 hour 16 minutes before
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Winter Weather Advisories in Washington, 2014Every winter weather advisory in 2014
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.