Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 61, NWS State College, PA

May 31, 1998McKean County, Pennsylvania

NWS State College, PA issued this severe thunderstorm warning at May 31, 1998, 1:24 PM EDT for McKean County, Pennsylvania. It was in force for 61 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 31, 1998, 1:24 PM EDT (17:24 UTC)
Expired: May 31, 1998, 2:25 PM EDT
In force: 61 min
Issued by: NWS State College, PA
Area: Whole counties

County McKean County, PA

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 5.4 hours before the alert went out and 202 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: 1035 J/kg
Mixed-layer CIN: -145 J/kg
Mixed-layer LCL: 1038 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 198 m²/s²
0-3 km storm-relative helicity: 281 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 4.7

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 severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS State College, PA wrote its last area forecast discussion before this severe thunderstorm warning went out at May 31, 11:50 AM EDT, 1 hour 34 minutes earlier.

Area forecast discussion, May 31, 11:50 AM EDT, 1 hour 34 minutes before

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In the hours before

Special weather statement, May 31, 11:10 AM EDT, 2 hours 14 minutes before

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Special weather statement, May 31, 11:10 AM EDT, 2 hours 14 minutes before

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<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <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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      <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, May 31, 1:23 PM EDT, 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PENNSYLVANIA
123 PM EDT SUN MAY 31 1998

TIME(EDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0115 PM    LOTTSVILLE                PA   .75 INCH HAIL
05/31/98   WARREN

Local storm report, May 31, 1:23 PM EDT, 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PENNSYLVANIA
123 PM EDT SUN MAY 31 1998

TIME(EDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0115 PM    LOTTSVILLE                PA   .75 INCH HAIL
05/31/98   WARREN

The office that day

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

Issued	Product	Office	Counties	Lasted
May 31, 12:50 PM EDT	Tornado Warning	CTP	Warren	60 min
May 31, 3:29 PM EDT	Severe Thunderstorm Warning	CTP	Cameron	46 min
May 31, 3:58 PM EDT	Severe Thunderstorm Warning	CTP	Potter	32 min
May 31, 4:25 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming, Sullivan	65 min
May 31, 5:12 PM EDT	Severe Thunderstorm Warning	CTP	Warren	48 min
May 31, 5:22 PM EDT	Tornado Warning	CTP	Lycoming	33 min
May 31, 5:35 PM EDT	Tornado Warning	CTP	Columbia, Sullivan	50 min
May 31, 6:26 PM EDT	Tornado Warning	CTP	McKean	34 min
May 31, 6:44 PM EDT	Severe Thunderstorm Warning	CTP	Warren	61 min
May 31, 6:50 PM EDT	Severe Thunderstorm Warning	CTP	Potter	65 min
May 31, 7:07 PM EDT	Severe Thunderstorm Warning	CTP	Elk, McKean	63 min
May 31, 7:20 PM EDT	Severe Thunderstorm Warning	CTP	Tioga	65 min
May 31, 7:20 PM EDT	Severe Thunderstorm Warning	CTP	Cameron	65 min
May 31, 7:28 PM EDT	Tornado Warning	CTP	Elk	62 min
May 31, 7:35 PM EDT	Tornado Warning	CTP	Tioga	50 min
May 31, 7:53 PM EDT	Tornado Warning	CTP	Cameron	62 min
May 31, 7:56 PM EDT	Severe Thunderstorm Warning	CTP	Potter	64 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 1998 Every 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.