Alert archive / Iowa / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 10, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at Apr 22, 1989, 2:00 PM CDT for Jasper County, Marshall County, Iowa. It was in force for 25 min.
The area
The counties it named.
The facts
- Issued
- Apr 22, 1989, 2:00 PM CDT (19:00 UTC)
- Expired
- Apr 22, 1989, 2:25 PM CDT
- In force
- 25 min
- Issued by
- NWS Des Moines, IA
- Area
- Whole counties
Counties Jasper County, IA, Marshall County, IA
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Minneapolis, MN (KSTC), launched 12:00Z, 7.0 hours before the alert went out and 336 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1102 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 372 m²/s²
- 0-3 km storm-relative helicity
- 285 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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
Local storm report, Apr 22, 1:39 PM CDT, 21 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 Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 22, 6:26 AM CDT | Severe Thunderstorm Warning | DMX | Boone, Hamilton, Story | 49 min |
| Apr 22, 9:05 AM CDT | Severe Thunderstorm Warning | DMX | Kossuth, Winnebago | 25 min |
| Apr 22, 9:41 AM CDT | Severe Thunderstorm Warning | DMX | Kossuth | 34 min |
| Apr 22, 10:28 AM CDT | Severe Thunderstorm Warning | DMX | Wright | 30 min |
| Apr 22, 10:35 AM CDT | Tornado Warning | DMX | Humboldt | 23 min |
| Apr 22, 10:52 AM CDT | Severe Thunderstorm Warning | DMX | Humboldt, Webster, Wright | 38 min |
| Apr 22, 11:30 AM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Webster | 30 min |
| Apr 22, 12:00 PM CDT | Severe Thunderstorm Warning | DMX | Boone | 30 min |
| Apr 22, 1:29 PM CDT | Severe Thunderstorm Warning | DMX | Marshall, Story | 31 min |
| Apr 22, 1:29 PM CDT | Severe Thunderstorm Warning | DMX | Hardin | 16 min |
| Apr 22, 2:13 PM CDT | Severe Thunderstorm Warning | DMX | Grundy | 57 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 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; the sounding from the Mesonet's radiosonde archive.