Alert archive / Louisiana / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 282, NWS Shreveport, LA
NWS Shreveport, LA issued this severe thunderstorm warning at Jun 15, 1998, 7:46 PM CDT for Grant Parish, Louisiana. It was in force for 64 min. 2 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jun 15, 1998, 7:46 PM CDT (00:46 UTC)
- Expired
- Jun 15, 1998, 8:50 PM CDT
- In force
- 64 min
- Issued by
- NWS Shreveport, LA
- Area
- Whole counties
County Grant Parish, LA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 15, 8:15 PM CDT | Thunderstorm Wind 52 | Montgomery, LA | |
| Jun 15, 8:15 PM CDT | Hail 1.75 | Fishville, LA |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 15, 3:45 PM CDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Shreveport, LA (KSHV), launched 00:00Z, 0.8 hours before the alert went out and 149 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
- 1505 J/kg
- Mixed-layer CIN
- -45 J/kg
- Mixed-layer LCL
- 1843 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km storm-relative helicity
- 65 m²/s²
- 0-3 km storm-relative helicity
- 292 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 16.1
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 Shreveport, LA wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 15, 2:35 PM CDT, 5 hours 11 minutes earlier.
Area forecast discussion, Jun 15, 2:35 PM CDT, 5 hours 11 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SHREVEPORT LA 235 PM CDT MON JUN 15 1998 SEVERAL INGREDIENTS COMING TOGETHER THIS AFTERNOON FOR A POSSIBLE SEVERE WEATHER EPISODE OVER EAST TEXAS AND/OR NORTHERN LOUISIANA FOR THE LATE AFTERNOON AND EVENING HOURS. EXTREME CAPES IN THE 4000 TO 5000 RANGE ARE OVER NORTHERN LOUISIANA. SATELLITE PICTURES AND SURFACE DEW POINTS INDICATE MOISTURE IS SURGING NORTHWARD FROM THE GULF INTO NORTHERN LOUISIANA. A FRONTAL BOUNDARY CONTINUES THIS AFTERNOON TO BE DRAPED ALONG A MEMPHIS TO SHREVEPORT TO AUSTIN LINE. IN THE UPPER LEVELS... NORTHERN LOUISIANA SHOULD BE IN THE RIGHT REAR QUADRANT OF A JET STREAM DURING THE EVENING HOURS. THIS SHOULD ENHANCE LIFT ALONG THE FRONT. THUNDERSTORMS SHOULD FORM LATE THIS AFTERNOON ALONG THE FRONT OVER NORTHERN LOUISIANA OR EXTREME SOUTHERN ARKANSAS. THUNDERSTORMS COULD EXTEND WEST INTO EAST TEXAS AND SOUTH INTO CENTRAL LOUISIANA. WITH THE HIGH CAPES... THE THUNDERSTORMS SHOULD BECOME SEVERE WITH DAMAGING WINDS A GOOD POSSIBILITY. AFTER TONIGHT... THE FRONT SHOULD SAG INTO CENTRAL LOUISIANA AND THEN DISSIPATE BY TUESDAY EVENING. TEMPERATURES WILL BE RATHER PERSISTENT OVER THE NEXT TWO DAYS. PRELIMS BELOW... SHV 69/96/76/98 2000 MLU 72/95/74/99 3000 03
In the hours before
Local storm report, Jun 15, 7:22 PM CDT, 24 minutes before
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</html>Local storm report, Jun 15, 7:22 PM CDT, 24 minutes before
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<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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</html>The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 15, 7:07 PM CDT | Tornado Warning | SHV | Natchitoches | 33 min |
Nearby
Severe Thunderstorm Warnings in Louisiana, 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.