Alert archive / Washington / Freezing Rain Advisories in 2016

Freezing Rain Advisory 2, NWS Spokane, WA

January 11, 2016Douglas County, Grant County, Washington

NWS Spokane, WA issued this freezing rain advisory at Jan 11, 2016, 6:30 AM PST for Douglas County, Grant County, Washington. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued: Jan 11, 2016, 6:30 AM PST (14:30 UTC)
Expired: Jan 11, 2016, 11:00 AM PST
In force: 5 hr
Issued by: NWS Spokane, WA

Counties Douglas County, WA, Grant County, WA

The radar

The Spokane radar (KOTX), 148 km from the middle of the area, began a volume at 14:29 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

Salem/Mcnary, OR (KSLE), launched 12:00Z, 2.5 hours before the alert went out and 387 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1173 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 158 m²/s²
0-3 km storm-relative helicity: 196 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this freezing rain 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 freezing rain advisory went out at Jan 11, 3:54 AM PST, 2 hours 36 minutes earlier.

Area forecast discussion, Jan 11, 3:54 AM PST, 2 hours 36 minutes before

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Nearby

Freezing Rain Advisories in Washington, 2016 Every freezing rain advisory in 2016

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.