Alert archive / Ohio / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 12, NWS Charleston, WV

April 16, 2010Jackson County, Mason County, West Virginia; 4 counties in Ohio

NWS Charleston, WV issued this severe thunderstorm warning at Apr 16, 2010, 4:52 PM EDT for Jackson County, Mason County, West Virginia; 4 counties in Ohio. It was in force for 24 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: Apr 16, 2010, 4:52 PM EDT (20:52 UTC)
Expired: Apr 16, 2010, 5:16 PM EDT
In force: 24 min
Issued by: NWS Charleston, WV
Area: Storm-based polygon

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

The radar

The Charleston,WV radar (KRLX), 83 km from the middle of the area, began a volume at 20:53 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 16, 1:28 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 8.9 hours before the alert went out and 148 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: 12 J/kg
Mixed-layer CIN: -166 J/kg
Mixed-layer LCL: 1903 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 187 m²/s²
0-3 km storm-relative helicity: 141 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 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 Apr 16, 3:14 PM EDT, 1 hour 38 minutes earlier.

Area forecast discussion, Apr 16, 3:14 PM EDT, 1 hour 38 minutes before

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Hazardous weather outlook, Apr 16, 4:40 PM EDT, 12 minutes before

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In the hours before

Special weather statement, Apr 16, 3:43 PM EDT, 1 hour 9 minutes before

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Local storm report, Apr 16, 4:15 PM EDT, 37 minutes before

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Special weather statement, Apr 16, 4:30 PM EDT, 22 minutes before

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Local storm report, Apr 16, 4:44 PM EDT, 8 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
Apr 16, 1:04 PM EDT	Red Flag Warning	RLX	Boone, Cabell, Clay, Kanawha, Lincoln, Logan and 5 more	7 hr

Nearby

Severe Thunderstorm Warnings in Ohio, 2010 Severe Thunderstorm Warnings in West Virginia, 2010 Every severe thunderstorm warning in 2010

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.