Alert archive / West Virginia / Freezing Rain Advisories in 2016

Freezing Rain Advisory 6, NWS Charleston, WV

December 17, 2016Pocahontas County, West Virginia

NWS Charleston, WV issued this freezing rain advisory at Dec 17, 2016, 9:11 AM EST for Pocahontas County, West Virginia. It was in force for 109 min.

The area

The counties it named.

The facts

Issued: Dec 17, 2016, 9:11 AM EST (14:11 UTC)
Expired: Dec 17, 2016, 11:00 AM EST
In force: 109 min
Issued by: NWS Charleston, WV

County Pocahontas County, WV

The radar

The Roanoke radar (KFCX), 147 km from the middle of the area, began a volume at 14:14 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

Roanoke, VA (KRNK), launched 12:00Z, 2.2 hours before the alert went out and 134 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: 724 m above ground
0-6 km bulk shear: 76 kt
0-1 km storm-relative helicity: 613 m²/s²
0-3 km storm-relative helicity: 761 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 Charleston, WV wrote its last area forecast discussion before this freezing rain advisory went out at Dec 17, 6:23 AM EST, 2 hours 48 minutes earlier.

Area forecast discussion, Dec 17, 6:23 AM EST, 2 hours 48 minutes before

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Hazardous weather outlook, Dec 17, 6:12 AM EST, 2 hours 59 minutes before

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In the hours before

Local storm report, Dec 17, 8:29 AM EST, 42 minutes before

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Local storm report, Dec 17, 8:41 AM EST, 30 minutes before

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Local storm report, Dec 17, 8:51 AM EST, 20 minutes before

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The office that day

Everything else NWS Charleston, WV issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 17, 2:54 PM EST	Wind Advisory	RLX	Fayette, Nicholas, Pocahontas, Raleigh, Randolph, Webster	16 hr
Dec 17, 5:11 PM EST	Flash Flood Watch	RLX	Barbour, Doddridge, Gilmer, Harrison, Lewis, Pleasants and 5 more	19 hr

Nearby

Freezing Rain Advisories in West Virginia, 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.