Alert archive / West Virginia / Freeze Warnings in 2018

Freeze Warning 14, NWS Charleston, WV

October 21, 201811 counties in West Virginia; Lawrence County, Ohio; 4 counties in Kentucky

NWS Charleston, WV issued this freeze warning at Oct 21, 2018, 3:11 AM EDT for 11 counties in West Virginia; Lawrence County, Ohio; 4 counties in Kentucky. It took effect at Oct 21, 2018, 11:21 PM EDT. It was in force for 10 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: Oct 21, 2018, 3:11 AM EDT (07:11 UTC)
In effect from: Oct 21, 2018, 11:21 PM EDT
Expired: Oct 22, 2018, 9:00 AM EDT
In force: 10 hr
Issued by: NWS Charleston, WV

Counties Boyd County, KY, Carter County, KY, Greenup County, KY, Lawrence County, KY, Lawrence County, OH, Boone County, WV, Cabell County, WV, Kanawha County, WV, Lincoln County, WV, Logan County, WV, McDowell County, WV, Mingo County, WV, Putnam County, WV, Raleigh County, WV, Wayne County, WV, Wyoming County, WV

The radar

The Charleston,WV radar (KRLX), 43 km from the middle of the area, began a volume at 07:10 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

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 7.2 hours before the alert went out and 301 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: 1756 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 94 m²/s²
0-3 km storm-relative helicity: 99 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 freeze warning 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 freeze warning went out at Oct 20, 7:13 PM EDT, 7 hours 58 minutes earlier.

Area forecast discussion, Oct 20, 7:13 PM EDT, 7 hours 58 minutes before

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Hazardous weather outlook, Oct 20, 7:15 PM EDT, 7 hours 56 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
Oct 20, 9:23 PM EDT	Special Weather Statement	RLX	Cabell, Putnam, Wayne	37 min
Oct 20, 9:41 PM EDT	Special Weather Statement	RLX	Braxton, Clay, Kanawha, Nicholas, Roane, Webster	49 min
Oct 20, 9:43 PM EDT	Special Weather Statement	RLX	Pocahontas, Randolph	47 min

Nearby

Freeze Warnings in West Virginia, 2018 Freeze Warnings in Kentucky, 2018 Freeze Warnings in Ohio, 2018 Every freeze warning in 2018

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.