Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 62, NWS Pittsburgh, PA

June 11, 20144 counties in Pennsylvania

NWS Pittsburgh, PA issued this severe thunderstorm warning at Jun 11, 2014, 7:50 PM EDT for 4 counties in Pennsylvania. It was in force for 40 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: Jun 11, 2014, 7:50 PM EDT (23:50 UTC)
Expired: Jun 11, 2014, 8:30 PM EDT
In force: 40 min
Issued by: NWS Pittsburgh, PA
Area: Storm-based polygon

Counties Clarion County, PA, Forest County, PA, Indiana County, PA, Jefferson County, PA

The radar

The State College radar (KCCX), 102 km from the middle of the area, began a volume at 23:54 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
Jun 11, 2:59 PM EDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Pittsburgh, PA (KAGC), launched 12:00Z, 11.8 hours before the alert went out and 110 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: 1314 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 134 m²/s²
0-3 km storm-relative helicity: 163 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 Jun 11, 7:26 PM EDT, 24 minutes earlier.

Area forecast discussion, Jun 11, 7:26 PM EDT, 24 minutes before

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Hazardous weather outlook, Jun 11, 7:28 PM EDT, 22 minutes before

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In the hours before

Local storm report, Jun 11, 6:56 PM EDT, 54 minutes before

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Local storm report, Jun 11, 7:02 PM EDT, 48 minutes before

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Local storm report, Jun 11, 7:10 PM EDT, 40 minutes before

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        Please try again in a few minutes.
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Local storm report, Jun 11, 7:20 PM EDT, 30 minutes before

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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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Local storm report, Jun 11, 7:22 PM EDT, 28 minutes before

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      <p id="message2">
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      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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Local storm report, Jun 11, 7:24 PM EDT, 26 minutes before

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      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 11, 4:26 PM EDT	Severe Thunderstorm Warning	PBZ	Washington	34 min
Jun 11, 4:42 PM EDT	Severe Thunderstorm Warning	PBZ	Greene	48 min
Jun 11, 5:07 PM EDT	Severe Thunderstorm Warning	PBZ	Greene, Washington	23 min
Jun 11, 5:09 PM EDT	Severe Thunderstorm Warning	PBZ	Greene	36 min
Jun 11, 5:25 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Greene, Washington	50 min
Jun 11, 5:37 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Beaver, Washington	38 min
Jun 11, 5:45 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Greene, Washington, Westmoreland	45 min
Jun 11, 5:47 PM EDT	Severe Thunderstorm Warning	PBZ	Beaver, Lawrence	24 min
Jun 11, 5:50 PM EDT	Severe Thunderstorm Warning	PBZ	Mercer	25 min
Jun 11, 6:13 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Armstrong, Butler, Westmoreland	32 min
Jun 11, 6:14 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette	61 min
Jun 11, 6:20 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Armstrong, Fayette, Indiana, Washington, Westmoreland	40 min
Jun 11, 6:40 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Armstrong, Butler, Clarion, Westmoreland	50 min
Jun 11, 6:43 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette	32 min
Jun 11, 6:46 PM EDT	Tornado Warning	PBZ	Armstrong, Butler	29 min
Jun 11, 6:51 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Armstrong, Fayette, Indiana, Westmoreland	39 min
Jun 11, 7:14 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Clarion, Indiana, Jefferson	46 min
Jun 11, 7:25 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Indiana, Jefferson, Westmoreland	50 min
Jun 11, 4:56 PM EDT	Severe Thunderstorm Warning	PBZ	Carroll, Columbiana	23 min
Jun 10, 11:44 PM EDT	Special Weather Statement	PBZ	Marion, Monongalia	31 min
Jun 11, 4:18 PM EDT	Special Weather Statement	PBZ	Brooke, Ohio	42 min
Jun 11, 4:58 PM EDT	Special Weather Statement	PBZ	Brooke	62 min
Jun 11, 5:50 PM EDT	Special Weather Statement	PBZ	Monongalia	40 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2014 Every severe thunderstorm warning in 2014

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.