Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 182, NWS Pittsburgh, PA

August 6, 20244 counties in Pennsylvania

NWS Pittsburgh, PA issued this severe thunderstorm warning at Aug 6, 2024, 11:13 AM EDT for 4 counties in Pennsylvania. It was in force for 47 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 6, 2024, 11:13 AM EDT (15:13 UTC)
Expired
Aug 6, 2024, 12:00 PM EDT
In force
47 min
Issued by
NWS Pittsburgh, PA
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Butler County, PA, Lawrence County, PA, Mercer County, PA, Venango County, PA

The radar

The Pittsburgh radar (KPBZ), 70 km from the middle of the area, began a volume at 15:13 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

Pittsburgh, PA (KPIT), launched 12:00Z, 3.2 hours before the alert went out and 83 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-pSkew-T log-p diagram, Pittsburgh, PA at 12:00Z on 2024-08-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1038 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Pittsburgh, PA at 12:00Z on 2024-08-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 48 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
1038 J/kg
Mixed-layer CIN
-25 J/kg
Mixed-layer LCL
821 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
48 m²/s²
0-3 km storm-relative helicity
80 m²/s²
Significant tornado parameter
0.4
Supercell composite
2.2

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 Aug 6, 10:49 AM EDT, 24 minutes earlier.

Area forecast discussion, Aug 6, 10:49 AM EDT, 24 minutes before
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Hazardous weather outlook, Aug 6, 3:58 AM EDT, 7 hours 15 minutes before
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In the hours before

Special weather statement, Aug 6, 11:10 AM EDT, 3 minutes before
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<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <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.
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        Please try again in a few minutes.
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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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The office that day

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

IssuedProductOfficeCountiesLasted
Aug 6, 10:48 AM EDTSevere Thunderstorm WarningPBZMercer42 min
Aug 6, 11:10 AM EDTSpecial Weather StatementPBZVenango50 min
Aug 6, 11:55 AM EDTAreal Flood AdvisoryPBZMercer3 hr
Aug 6, 11:59 AM EDTSevere Thunderstorm WarningPBZButler, Mercer, Venango31 min
Aug 6, 12:04 PM EDTSpecial Weather StatementPBZVenango26 min
Aug 6, 12:12 PM EDTSpecial Weather StatementPBZLawrence33 min
Aug 6, 12:16 PM EDTSevere Thunderstorm WarningPBZClarion, Forest, Venango29 min
Aug 6, 12:18 PM EDTSevere Thunderstorm WarningPBZArmstrong, Butler, Clarion, Venango42 min
Aug 6, 12:20 PM EDTAreal Flood AdvisoryPBZVenango3 hr
Aug 6, 12:30 PM EDTSevere Thunderstorm WarningPBZButler, Lawrence, Mercer, Venango45 min
Aug 6, 12:42 PM EDTSevere Thunderstorm WarningPBZClarion, Forest, Jefferson, Venango33 min
Aug 6, 12:52 PM EDTSevere Thunderstorm Warning Considerable damage threatPBZArmstrong, Clarion, Indiana, Jefferson53 min
Aug 6, 1:11 PM EDTSevere Thunderstorm WarningPBZClarion, Forest, Jefferson19 min
Aug 6, 1:12 PM EDTSevere Thunderstorm WarningPBZButler, Lawrence, Mercer33 min
Aug 6, 1:15 PM EDTSevere Thunderstorm WarningPBZMercer31 min
Aug 6, 1:17 PM EDTSevere Thunderstorm WarningPBZLawrence, Mercer28 min
Aug 6, 1:36 PM EDTSevere Thunderstorm WarningPBZMercer, Venango24 min
Aug 6, 1:37 PM EDTSevere Thunderstorm WarningPBZArmstrong, Indiana, Jefferson53 min
Aug 6, 1:40 PM EDTSevere Thunderstorm WarningPBZBeaver, Butler, Lawrence35 min
Aug 6, 1:45 PM EDTSevere Thunderstorm WarningPBZLawrence, Mercer26 min
Aug 6, 1:51 PM EDTTornado WarningPBZMercer, Venango24 min
Aug 6, 1:54 PM EDTSpecial Weather StatementPBZBeaver36 min
Aug 6, 2:00 PM EDTFlash Flood WarningPBZButler, Lawrence, Mercer3 hr
Aug 6, 2:00 PM EDTSevere Thunderstorm WarningPBZArmstrong, Butler, Clarion, Forest, Mercer, Venango45 min
Aug 6, 2:13 PM EDTSevere Thunderstorm WarningPBZBeaver, Butler, Lawrence32 min
Aug 6, 2:14 PM EDTSevere Thunderstorm WarningPBZArmstrong, Indiana31 min
Aug 6, 2:27 PM EDTSevere Thunderstorm WarningPBZIndiana, Jefferson18 min
Aug 6, 2:37 PM EDTFlash Flood WarningPBZArmstrong, Indiana, Jefferson3 hr
Aug 6, 2:39 PM EDTSevere Thunderstorm WarningPBZArmstrong, Indiana51 min
Aug 6, 2:41 PM EDTSevere Thunderstorm WarningPBZBeaver34 min
Aug 6, 2:49 PM EDTSevere Thunderstorm WarningPBZAllegheny, Armstrong, Beaver, Butler, Westmoreland41 min
Aug 6, 2:55 PM EDTSevere Thunderstorm WarningPBZAllegheny, Armstrong, Indiana, Westmoreland35 min
Aug 6, 3:06 PM EDTAreal Flood AdvisoryPBZButler97 min
Aug 6, 3:16 PM EDTSpecial Weather StatementPBZBeaver29 min
Aug 6, 3:19 PM EDTFlash Flood WarningPBZAllegheny, Armstrong, Beaver, Butler, Westmoreland6 hr
Aug 6, 3:29 PM EDTSevere Thunderstorm WarningPBZArmstrong, Indiana, Westmoreland20 min
Aug 6, 3:39 PM EDTFlash Flood WarningPBZIndiana2 hr
Aug 6, 4:41 PM EDTAreal Flood AdvisoryPBZAllegheny, Westmoreland88 min
Aug 6, 5:09 PM EDTSevere Thunderstorm WarningPBZMercer36 min
Aug 6, 5:21 PM EDTTornado WarningPBZMercer24 min
Aug 6, 5:26 PM EDTSevere Thunderstorm WarningPBZBeaver, Lawrence, Mercer49 min
Aug 6, 5:39 PM EDTTornado WarningPBZMercer9 min
Aug 6, 5:48 PM EDTSevere Thunderstorm WarningPBZArmstrong, Butler, Clarion, Lawrence, Mercer, Venango42 min
Aug 6, 5:54 PM EDTSevere Thunderstorm WarningPBZAllegheny, Beaver51 min
Aug 6, 5:59 PM EDTSevere Thunderstorm WarningPBZArmstrong, Beaver, Butler, Clarion, Lawrence, Mercer46 min
Aug 6, 6:14 PM EDTSevere Thunderstorm WarningPBZAllegheny, Beaver, Butler46 min
Aug 6, 6:29 PM EDTSevere Thunderstorm Warning Considerable damage threatPBZArmstrong, Butler, Clarion, Forest, Jefferson, Mercer and 1 more61 min
Aug 6, 6:39 PM EDTSevere Thunderstorm WarningPBZAllegheny, Armstrong, Butler, Clarion, Indiana, Jefferson and 2 more66 min
Aug 6, 7:06 PM EDTSevere Thunderstorm WarningPBZAllegheny, Fayette, Washington, Westmoreland39 min
Aug 6, 7:24 PM EDTSpecial Weather StatementPBZIndiana36 min
Aug 6, 7:30 PM EDTSpecial Weather StatementPBZClarion30 min
Aug 6, 7:34 PM EDTFlash Flood WarningPBZAllegheny, Beaver82 min
Aug 6, 7:42 PM EDTSevere Thunderstorm WarningPBZAllegheny, Fayette, Indiana, Washington, Westmoreland48 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2024Every severe thunderstorm warning in 2024

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.