Alert archive / Iowa / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 167, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at Aug 17, 1994, 9:52 PM CDT for Howard County, Winneshiek County, Iowa. It was in force for 38 min.
The area
The counties it named.
The facts
- Issued
- Aug 17, 1994, 9:52 PM CDT (02:52 UTC)
- Expired
- Aug 17, 1994, 10:30 PM CDT
- In force
- 38 min
- Issued by
- NWS Des Moines, IA
- Area
- Whole counties
Counties Howard County, IA, Winneshiek County, IA
The nearest sounding before it
Minneapolis, MN (KSTC), launched 00:00Z, 2.9 hours before the alert went out and 209 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
- 1975 J/kg
- Mixed-layer CIN
- -24 J/kg
- Mixed-layer LCL
- 713 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- -1 m²/s²
- 0-3 km storm-relative helicity
- 42 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
Special weather statement, Aug 17, 6:06 PM CDT, 3 hours 46 minutes before
IAZ006>011-016>019-180010- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WATERLOO IA 607 PM CDT WED AUG 17 1994 ...STRONG THUNDERSTORMS HAD DEVELOPED IN NORTHEAST IOWA... AT 6PM...WEATHER SERVICE RADAR IN WATERLOO WAS SHOWING STRONG THUNDERSTORMS THAT HAD RAPIDLY DEVELOPED IN NORTHEAST IOWA. THESE STORMS WERE LOCATED 20 MILES EAST OF MASON CITY OR JUST EAST OF NORA SPRINGS. THESE STORMS WERE MOVING TO THE NORTHEAST AT 20 MILES AN HOUR AND WILL BE AFFECTING THE TOWNS OF ORCHARD...AND OSAGE BY 645PM. PERSONS IN THESE AREAS CAN EXPECT BRIEF HEAVY DOWNPOURS OF RAIN ALONG WITH FREQUENT LIGHTNING...STRONG WINDS AND SMALL HAIL. STAY TUNED TO YOUR LOCAL TV...RADIO OR NOAA WEATHER RADIO FOR FURTHER UPDATES AND POSSIBLE WARNINGS. LINDENBERG
Special weather statement, Aug 17, 6:07 PM CDT, 3 hours 45 minutes before
IAZ006>011-016>019-180010- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WATERLOO IA 607 PM CDT WED AUG 17 1994 ...STRONG THUNDERSTORMS HAD DEVELOPED IN NORTHEAST IOWA... AT 6PM...WEATHER SERVICE RADAR IN WATERLOO WAS SHOWING STRONG THUNDERSTORMS THAT HAD RAPIDLY DEVELOPED IN NORTHEAST IOWA. THESE STORMS WERE LOCATED 20 MILES EAST OF MASON CITY OR JUST EAST OF NORA SPRINGS. THESE STORMS WERE MOVING TO THE NORTHEAST AT 20 MILES AN HOUR AND WILL BE AFFECTING THE TOWNS OF ORCHARD...AND OSAGE BY 645PM. PERSONS IN THESE AREAS CAN EXPECT BRIEF HEAVY DOWNPOURS OF RAIN ALONG WITH FREQUENT LIGHTNING...STRONG WINDS AND SMALL HAIL. STAY TUNED TO YOUR LOCAL TV...RADIO OR NOAA WEATHER RADIO FOR FURTHER UPDATES AND POSSIBLE WARNINGS. LINDENBERG
Special weather statement, Aug 17, 9:40 PM CDT, 12 minutes before
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</html>Special weather statement, Aug 17, 9:41 PM CDT, 11 minutes before
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<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>
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If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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</html>The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 17, 7:05 PM CDT | Tornado Warning | DMX | Howard | 55 min |
| Aug 17, 8:22 PM CDT | Severe Thunderstorm Warning | DMX | Howard | 53 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 1994Every severe thunderstorm warning in 1994
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.