Alert archive / Ohio / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 22, NWS Pittsburgh, PA

April 10, 2013Beaver County, Pennsylvania; Carroll County, Columbiana County, Jefferson County, Ohio; Hancock County, West Virginia

NWS Pittsburgh, PA issued this severe thunderstorm warning at Apr 10, 2013, 7:45 PM EDT for Beaver County, Pennsylvania; Carroll County, Columbiana County, Jefferson County, Ohio; Hancock County, West Virginia. It was in force for 45 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 10, 2013, 7:45 PM EDT (23:45 UTC)
Expired: Apr 10, 2013, 8:30 PM EDT
In force: 45 min
Issued by: NWS Pittsburgh, PA
Area: Storm-based polygon

Counties Carroll County, OH, Columbiana County, OH, Jefferson County, OH, Beaver County, PA, Hancock County, WV

The radar

The Pittsburgh radar (KPBZ), 42 km from the middle of the area, began a volume at 23:46 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 10, 6:13 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 11.8 hours before the alert went out and 55 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: 147 J/kg
Mixed-layer CIN: -81 J/kg
Mixed-layer LCL: 1105 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 190 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 severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Pittsburgh, PA wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 10, 6:33 PM EDT, 1 hour 12 minutes earlier.

Area forecast discussion, Apr 10, 6:33 PM EDT, 1 hour 12 minutes before

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Hazardous weather outlook, Apr 10, 6:22 PM EDT, 1 hour 23 minutes before

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In the hours before

Local storm report, Apr 10, 7:28 PM EDT, 17 minutes before

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Local storm report, Apr 10, 7:35 PM EDT, 10 minutes before

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Local storm report, Apr 10, 7:38 PM EDT, 7 minutes before

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Local storm report, Apr 10, 7:40 PM EDT, 5 minutes before

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Special weather statement, Apr 10, 7:40 PM EDT, 5 minutes before

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Local storm report, Apr 10, 7:42 PM EDT, 3 minutes before

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The office that day

Everything else NWS Pittsburgh, PA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 10, 12:55 PM EDT	Special Weather Statement	PBZ	Mercer, Venango	65 min
Apr 10, 1:39 PM EDT	Severe Thunderstorm Warning	PBZ	Forest, Venango	51 min
Apr 10, 1:56 PM EDT	Special Weather Statement	PBZ	Clarion, Venango	49 min
Apr 10, 2:07 PM EDT	Severe Thunderstorm Warning	PBZ	Clarion, Forest, Jefferson, Venango	38 min
Apr 10, 2:22 PM EDT	Severe Thunderstorm Warning	PBZ	Forest	8 min
Apr 10, 2:56 PM EDT	Special Weather Statement	PBZ	Mercer	34 min
Apr 10, 3:12 PM EDT	Special Weather Statement	PBZ	Mercer, Venango	33 min
Apr 10, 3:22 PM EDT	Special Weather Statement	PBZ	Allegheny	23 min
Apr 10, 3:30 PM EDT	Special Weather Statement	PBZ	Armstrong	30 min
Apr 10, 3:45 PM EDT	Severe Thunderstorm Warning	PBZ	Indiana, Westmoreland	60 min
Apr 10, 4:09 PM EDT	Special Weather Statement	PBZ	Mercer	51 min
Apr 10, 4:57 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Washington	48 min
Apr 10, 5:15 PM EDT	Special Weather Statement	PBZ	Forest	45 min
Apr 10, 5:26 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Lawrence, Washington	49 min
Apr 10, 5:34 PM EDT	Severe Thunderstorm Warning	PBZ	Butler, Lawrence, Mercer, Venango	56 min
Apr 10, 5:35 PM EDT	Special Weather Statement	PBZ	Allegheny	40 min
Apr 10, 5:45 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Washington, Westmoreland	60 min
Apr 10, 6:12 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Armstrong, Beaver, Butler, Clarion, Forest and 6 more	63 min
Apr 10, 6:39 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Indiana, Jefferson	51 min
Apr 10, 6:51 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Armstrong, Beaver, Butler, Indiana, Washington and 1 more	54 min
Apr 10, 7:34 PM EDT	Areal Flood Advisory	PBZ	Allegheny, Beaver, Butler, Lawrence, Washington	6 hr
Apr 10, 1:01 PM EDT	Special Weather Statement	PBZ	Carroll, Tuscarawas	44 min
Apr 10, 1:41 PM EDT	Special Weather Statement	PBZ	Tuscarawas	49 min
Apr 10, 1:59 PM EDT	Special Weather Statement	PBZ	Tuscarawas	46 min
Apr 10, 2:28 PM EDT	Special Weather Statement	PBZ	Columbiana	47 min
Apr 10, 4:30 PM EDT	Special Weather Statement	PBZ	Coshocton	30 min
Apr 10, 5:05 PM EDT	Severe Thunderstorm Warning	PBZ	Carroll, Tuscarawas	40 min
Apr 10, 7:06 PM EDT	Special Weather Statement	PBZ	Carroll	39 min
Apr 10, 7:17 PM EDT	Severe Thunderstorm Warning	PBZ	Carroll, Columbiana, Jefferson, Tuscarawas	43 min
Apr 10, 7:22 PM EDT	Severe Thunderstorm Warning	PBZ	Carroll, Tuscarawas	53 min
Apr 10, 7:40 PM EDT	Special Weather Statement	PBZ	Coshocton	50 min

Nearby

Severe Thunderstorm Warnings in Ohio, 2013 Severe Thunderstorm Warnings in Pennsylvania, 2013 Severe Thunderstorm Warnings in West Virginia, 2013 Every severe thunderstorm warning in 2013

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.