Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 53, NWS Pittsburgh, PA
NWS Pittsburgh, PA issued this severe thunderstorm warning at May 25, 1998, 2:21 AM EDT for Forest County, Pennsylvania. It was in force for 29 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
- May 25, 1998, 2:21 AM EDT (06:21 UTC)
- Expired
- May 25, 1998, 2:50 AM EDT
- In force
- 29 min
- Issued by
- NWS Pittsburgh, PA
- Area
- Whole counties
County Forest County, PA
The radar
The State College radar (KCCX), 122 km from the middle of the area, began a volume at 06:22 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 00:00Z, 6.4 hours before the alert went out and 142 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.
- Mixed-layer CAPE
- 69 J/kg
- Mixed-layer CIN
- -185 J/kg
- Mixed-layer LCL
- 1081 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 160 m²/s²
- 0-3 km storm-relative helicity
- 277 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
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 severe thunderstorm 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, May 24, 10:39 PM EDT, 3 hours 42 minutes before
MDZ001-OHZ068-069-WVZ012-021>023-041-250500- SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE PITTSBURGH PA 1039 PM EDT SUN MAY 24 1998 ...THE TORNADO WATCH IS NO LONGER IN EFFECT... THE TORNADO WATCH HAS BEEN CANCELED FOR THE FOLLOWING COUNTIES... IN OHIO... MONROE AND NOBLE. IN WEST VIRGINIA... MARION...MONONGALIA...PRESTON...TUCKER AND WETZEL. AND IN THE MARYLAND PANHANDLE... GARRETT. THE ATMOSPHERE OVER NORTHERN WEST VIRGINIA AND EXTREME SOUTHEASTERN PORTION OF EAST CENTRAL OHIO HAVE BECOME MORE STABLE AND THE THREAT OF TORNADOES HAS DIMINISHED. THEREFORE...THE TORNADO WATCH HAS BEEN CANCELED. RHD/RSD
Special weather statement, May 24, 10:39 PM EDT, 3 hours 42 minutes before
MDZ001-OHZ068-069-WVZ012-021>023-041-250500- SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE PITTSBURGH PA 1039 PM EDT SUN MAY 24 1998 ...THE TORNADO WATCH IS NO LONGER IN EFFECT... THE TORNADO WATCH HAS BEEN CANCELED FOR THE FOLLOWING COUNTIES... IN OHIO... MONROE AND NOBLE. IN WEST VIRGINIA... MARION...MONONGALIA...PRESTON...TUCKER AND WETZEL. AND IN THE MARYLAND PANHANDLE... GARRETT. THE ATMOSPHERE OVER NORTHERN WEST VIRGINIA AND EXTREME SOUTHEASTERN PORTION OF EAST CENTRAL OHIO HAVE BECOME MORE STABLE AND THE THREAT OF TORNADOES HAS DIMINISHED. THEREFORE...THE TORNADO WATCH HAS BEEN CANCELED. RHD/RSD
Local storm report, May 25, 12:58 AM EDT, 1 hour 23 minutes before
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</html>Local storm report, May 25, 12:58 AM EDT, 1 hour 23 minutes before
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</html>Local storm report, May 25, 1:05 AM EDT, 1 hour 16 minutes before
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</html>Local storm report, May 25, 1:18 AM EDT, 1 hour 3 minutes before
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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.
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</html>The office that day
Everything else NWS Pittsburgh, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 24, 8:09 PM EDT | Severe Thunderstorm Warning | PBZ | Harrison, Jefferson | 66 min |
| May 24, 11:23 PM EDT | Severe Thunderstorm Warning | PBZ | Washington | 57 min |
| May 24, 8:23 PM EDT | Severe Thunderstorm Warning | PBZ | Brooke, Ohio | 67 min |
| May 24, 8:42 PM EDT | Severe Thunderstorm Warning | PBZ | Tucker | 48 min |
| May 24, 9:38 PM EDT | Flash Flood Warning | PBZ | Marshall | 3 hr |
| May 24, 10:10 PM EDT | Flash Flood Warning | PBZ | Monongalia | 110 min |
| May 24, 11:45 PM EDT | Flash Flood Warning | PBZ | Monongalia | 3 hr |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 1998Every severe thunderstorm warning in 1998
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.