Alert archive / South Carolina / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 34, NWS Greenville-Spartanburg, SC

April 9, 1998Chester County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Apr 9, 1998, 3:56 AM EDT for Chester County, South Carolina. It was in force for 34 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: Apr 9, 1998, 3:56 AM EDT (07:56 UTC)
Expired: Apr 9, 1998, 4:30 AM EDT
In force: 34 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Whole counties

County Chester County, SC

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 8, 10:00 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 7.9 hours before the alert went out and 192 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: 239 J/kg
Mixed-layer CIN: -4 J/kg
Mixed-layer LCL: 1344 m above ground
0-6 km bulk shear: 7 kt
0-1 km storm-relative helicity: 8 m²/s²
0-3 km storm-relative helicity: 42 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 Greenville-Spartanburg, SC wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 9, 3:30 AM EDT, 26 minutes earlier.

Area forecast discussion, Apr 9, 3:30 AM EDT, 26 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE/SPARTANBURG, SC
330 AM EDT THU APR 9 1998

.ALL....NO RECOMMENDATIONS

STILL IN SEVERE WX MODE AS WE SEE AN INCREASE IN CONVECTION
OVER THE AREA.  SELS LOOKS LIKE THEY WILL EXTEND WATCH OVER
AREA SOON.

LOOKING BRIEFLY AT PCGRIDS, STILL PREFER THE ETA SOLUTION WITH
FROPA AT GSP AROUND 12Z AND MOVG ACRS REST OF CWA DURG THE MRNG.
LOOKING AT LESS DRASTIC AND DRYER GUIDANCE OF FWC AS CLOSER
TO REALISTIC FORECAST.

RESIDUAL POPS THIS MRNG AS FRONT CLRS THE AREA.

AVL 065/043 055/036 100
CLT 075/049 064/041 400
GSP 074/050 065/043 200

VAD

In the hours before

Special weather statement, Apr 8, 11:22 PM EDT, 4 hours 34 minutes before

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Special weather statement, Apr 8, 11:22 PM EDT, 4 hours 34 minutes before

<!doctype html>
<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.
      </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 Greenville-Spartanburg, SC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 9, 5:30 AM EDT	Flash Flood Warning	GSP	Cabarrus, Mecklenburg, Union	3 hr
Apr 8, 8:28 PM EDT	Severe Thunderstorm Warning	GSP	Abbeville	47 min
Apr 8, 8:48 PM EDT	Severe Thunderstorm Warning	GSP	Greenwood	57 min
Apr 9, 3:06 AM EDT	Severe Thunderstorm Warning	GSP	Laurens	24 min
Apr 8, 8:06 PM EDT	Severe Thunderstorm Warning	GSP	Elbert	54 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 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.