Alert archive / Mississippi / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 69, NWS Jackson, MS
NWS Jackson, MS issued this severe thunderstorm warning at Apr 4, 1989, 5:34 PM CDT for Amite County, Mississippi. It was in force for 26 min. 1 report 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
- Apr 4, 1989, 5:34 PM CDT (22:34 UTC)
- Expired
- Apr 4, 1989, 6:00 PM CDT
- In force
- 26 min
- Issued by
- NWS Jackson, MS
- Area
- Whole counties
County Amite County, MS
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 4, 5:43 PM CDT | Hail 1 | Amite, MS |
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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Jackson, MS (KJAN), launched 12:00Z, 10.6 hours before the alert went out and 145 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
- 2069 J/kg
- Mixed-layer CIN
- -15 J/kg
- Mixed-layer LCL
- 627 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 171 m²/s²
- 0-3 km storm-relative helicity
- 221 m²/s²
- Significant tornado parameter
- 2.2
- Supercell composite
- 11.1
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.
In the hours before
Special weather statement, Apr 4, 2:44 PM CDT, 2 hours 50 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.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Special weather statement, Apr 4, 3:29 PM CDT, 2 hours 5 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.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Local storm report, Apr 4, 4:20 PM CDT, 1 hour 14 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.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Special weather statement, Apr 4, 4:46 PM CDT, 48 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.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Local storm report, Apr 4, 4:47 PM CDT, 47 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.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Special weather statement, Apr 4, 5:17 PM CDT, 17 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.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 4, 5:15 AM CDT | Severe Thunderstorm Warning | JAN | Kemper | 45 min |
| Apr 4, 5:47 AM CDT | Severe Thunderstorm Warning | JAN | Winston | 43 min |
| Apr 4, 7:17 AM CDT | Severe Thunderstorm Warning | JAN | Bolivar, Sunflower, Washington | 28 min |
| Apr 4, 7:51 AM CDT | Severe Thunderstorm Warning | JAN | Carroll, Leflore | 54 min |
| Apr 4, 8:20 AM CDT | Tornado Warning | JAN | Carroll | 25 min |
| Apr 4, 8:31 AM CDT | Severe Thunderstorm Warning | JAN | Sharkey | 29 min |
| Apr 4, 8:39 AM CDT | Severe Thunderstorm Warning | JAN | Montgomery | 36 min |
| Apr 4, 8:54 AM CDT | Tornado Warning | JAN | Montgomery | 26 min |
| Apr 4, 8:54 AM CDT | Tornado Warning | JAN | Choctaw | 36 min |
| Apr 4, 10:21 AM CDT | Tornado Warning | JAN | Yazoo | 39 min |
| Apr 4, 11:06 AM CDT | Severe Thunderstorm Warning | JAN | Holmes | 29 min |
| Apr 4, 11:32 AM CDT | Severe Thunderstorm Warning | JAN | Attala, Madison | 28 min |
| Apr 4, 12:03 PM CDT | Severe Thunderstorm Warning | JAN | Madison | 27 min |
| Apr 4, 12:42 PM CDT | Severe Thunderstorm Warning | JAN | Leake | 18 min |
| Apr 4, 1:19 PM CDT | Severe Thunderstorm Warning | JAN | Neshoba | 41 min |
| Apr 4, 1:49 PM CDT | Severe Thunderstorm Warning | JAN | Neshoba, Newton | 41 min |
| Apr 4, 2:03 PM CDT | Tornado Warning | JAN | Lauderdale, Newton | 42 min |
| Apr 4, 2:15 PM CDT | Severe Thunderstorm Warning | JAN | Clarke | 45 min |
| Apr 4, 2:36 PM CDT | Severe Thunderstorm Warning | JAN | Jones | 39 min |
| Apr 4, 2:47 PM CDT | Severe Thunderstorm Warning | JAN | Clarke, Wayne | 43 min |
| Apr 4, 3:17 PM CDT | Severe Thunderstorm Warning | JAN | Jones | 28 min |
| Apr 4, 3:45 PM CDT | Severe Thunderstorm Warning | JAN | Jones | 30 min |
| Apr 4, 4:28 PM CDT | Severe Thunderstorm Warning | JAN | Wayne | 32 min |
| Apr 4, 5:48 PM CDT | Severe Thunderstorm Warning | JAN | Clarke, Wayne | 42 min |
| Apr 4, 1:37 PM CDT | Severe Thunderstorm Warning | JAN | Sumter | 38 min |
| Apr 4, 2:28 PM CDT | Severe Thunderstorm Warning | JAN | Choctaw | 47 min |
| Apr 4, 3:14 PM CDT | Severe Thunderstorm Warning | JAN | Choctaw | 31 min |
| Apr 4, 3:50 PM CDT | Severe Thunderstorm Warning | JAN | Choctaw | 25 min |
Nearby
Severe Thunderstorm Warnings in Mississippi, 1989Every severe thunderstorm warning in 1989
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.