Alert archive / Pennsylvania / Flash Flood Warnings in 1993

Flash Flood Warning 15, NWS Pittsburgh, PA

June 8, 1993Greene County, Pennsylvania

NWS Pittsburgh, PA issued this flash flood warning at Jun 8, 1993, 1:58 AM EDT for Greene County, Pennsylvania. It was in force for 62 min.

The area

The counties it named.

The facts

Issued: Jun 8, 1993, 1:58 AM EDT (05:58 UTC)
Expired: Jun 8, 1993, 3:00 AM EDT
In force: 62 min
Issued by: NWS Pittsburgh, PA
Area: Whole counties

County Greene County, PA

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 00:00Z, 6.0 hours before the alert went out and 63 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: 1308 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 63 m²/s²
0-3 km storm-relative helicity: 107 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Jun 7, 9:38 PM EDT, 4 hours 20 minutes before

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Special weather statement, Jun 7, 9:40 PM EDT, 4 hours 18 minutes before

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Special weather statement, Jun 8, 12:55 AM EDT, 1 hour 3 minutes before

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      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
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Special weather statement, Jun 8, 12:57 AM EDT, 1 hour 1 minute before

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<head>
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  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<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.
      </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 7, 9:52 PM EDT	Severe Thunderstorm Warning	PBZ	Greene, Washington	68 min
Jun 8, 1:30 AM EDT	Flash Flood Warning	PBZ	Washington	90 min
Jun 8, 3:22 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Clarion	68 min
Jun 8, 4:25 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Butler	35 min
Jun 8, 5:06 PM EDT	Severe Thunderstorm Warning	PBZ	Armstrong, Indiana, Westmoreland	54 min
Jun 8, 5:56 PM EDT	Severe Thunderstorm Warning	PBZ	Blair, Cambria	64 min
Jun 8, 7:01 PM EDT	Severe Thunderstorm Warning	PBZ	Somerset	59 min
Jun 8, 7:58 PM EDT	Severe Thunderstorm Warning	PBZ	Butler	62 min
Jun 7, 9:52 PM EDT	Severe Thunderstorm Warning	PBZ	Brooke, Ohio	68 min

Nearby

Flash Flood Warnings in Pennsylvania, 1993 Every flash flood warning in 1993

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.