Alert archive / West Virginia / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 211, NWS Charleston, WV

August 22, 2019Jackson County, Mason County, West Virginia; Gallia County, Ohio

NWS Charleston, WV issued this severe thunderstorm warning at Aug 22, 2019, 8:22 AM EDT for Jackson County, Mason County, West Virginia; Gallia County, Ohio. It was in force for 38 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Aug 22, 2019, 8:22 AM EDT (12:22 UTC)
Expired: Aug 22, 2019, 9:00 AM EDT
In force: 38 min
Issued by: NWS Charleston, WV
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Gallia County, OH, Jackson County, WV, Mason County, WV

The radar

The Charleston,WV radar (KRLX), 61 km from the middle of the area, began a volume at 12:21 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, 0.4 hours before the alert went out and 283 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: 626 J/kg
Mixed-layer CIN: -46 J/kg
Mixed-layer LCL: 860 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: -38 m²/s²
0-3 km storm-relative helicity: -47 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.4

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Aug 22, 7:53 AM EDT, 29 minutes earlier.

Area forecast discussion, Aug 22, 7:53 AM EDT, 29 minutes before

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Hazardous weather outlook, Aug 22, 5:17 AM EDT, 3 hours 5 minutes before

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In the hours before

Special weather statement, Aug 22, 7:24 AM EDT, 58 minutes before

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Special weather statement, Aug 22, 7:32 AM EDT, 50 minutes before

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Special weather statement, Aug 22, 7:55 AM EDT, 27 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
Aug 22, 7:55 AM EDT	Special Weather Statement	RLX	Mason	50 min
Aug 22, 11:11 AM EDT	Special Weather Statement	RLX	Randolph	34 min
Aug 22, 7:24 AM EDT	Special Weather Statement	RLX	Jackson	51 min
Aug 22, 7:32 AM EDT	Special Weather Statement	RLX	Gallia, Lawrence	43 min

Nearby

Severe Thunderstorm Warnings in West Virginia, 2019 Severe Thunderstorm Warnings in Ohio, 2019 Every severe thunderstorm warning in 2019

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.