Alert archive / Iowa / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 52, NWS Des Moines, IA

June 13, 1993Adair County, Union County, Iowa

NWS Des Moines, IA issued this severe thunderstorm warning at Jun 13, 1993, 4:56 PM CDT for Adair County, Union County, Iowa. It was in force for 49 min.

The area

The counties it named.

The facts

Issued: Jun 13, 1993, 4:56 PM CDT (21:56 UTC)
Expired: Jun 13, 1993, 5:45 PM CDT
In force: 49 min
Issued by: NWS Des Moines, IA
Area: Whole counties

Counties Adair County, IA, Union County, IA

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 9.9 hours before the alert went out and 169 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1167 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: -246 m²/s²
0-3 km storm-relative helicity: -120 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.

In the hours before

Special weather statement, Jun 13, 3:42 PM CDT, 1 hour 14 minutes before

IAZALL-132140-

SPEICAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE DES MOINES IA
3 40 PM CDT SUN JUN 13 1993

A TORNADO WATCH IS IN EFFECT SOR SOUTH CENTRAL AND SOUTHWEST IOWA
UNTIL 10 PM CDT.

AT 3 30 PM CDT...INTENSE THUNDERSTORMS WITH VERY HEAVY RAINS WERE LOCATED
IN WEST CENTRAL AND SOUTHWEST IOWA...AND SHOWERS WERE SCATTERED THROUGH
THE SOUTHWEST HALF OF IOWA...MOSTLY SOUTHWEST OF A LINE FROM MASON CITY
TO BURLINGTON.  THE HEAVIEST THUNDERSTORMS WERE LOCATED IN SOUTHWEST IOWA
NEAR RED OAK...ABOUT 25 MILES SOUTHEAST OF OMAHA...AND IN WEST CENTRAL
IOWA NEAR COON RAPIDS...ABOUT 50 MILES NORTHWEST OF DES MOINES.

VERY HEAVY RAIN...STRONG GUSTY WINDS...AND SMALL HAIL MAY BE EXPECTED WITH
THE PASSAGE OF THESE STORMS.

THE SHOWERS AND STORMS WERE MOVING NORTHEAST AT 30 MILES AN HOUR.

SCOTT

Special weather statement, Jun 13, 3:42 PM CDT, 1 hour 14 minutes before

IAZALL-132140-

SPEICAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE DES MOINES IA
3 40 PM CDT SUN JUN 13 1993

A TORNADO WATCH IS IN EFFECT SOR SOUTH CENTRAL AND SOUTHWEST IOWA
UNTIL 10 PM CDT.

AT 3 30 PM CDT...INTENSE THUNDERSTORMS WITH VERY HEAVY RAINS WERE LOCATED
IN WEST CENTRAL AND SOUTHWEST IOWA...AND SHOWERS WERE SCATTERED THROUGH
THE SOUTHWEST HALF OF IOWA...MOSTLY SOUTHWEST OF A LINE FROM MASON CITY
TO BURLINGTON.  THE HEAVIEST THUNDERSTORMS WERE LOCATED IN SOUTHWEST IOWA
NEAR RED OAK...ABOUT 25 MILES SOUTHEAST OF OMAHA...AND IN WEST CENTRAL
IOWA NEAR COON RAPIDS...ABOUT 50 MILES NORTHWEST OF DES MOINES.

VERY HEAVY RAIN...STRONG GUSTY WINDS...AND SMALL HAIL MAY BE EXPECTED WITH
THE PASSAGE OF THESE STORMS.

THE SHOWERS AND STORMS WERE MOVING NORTHEAST AT 30 MILES AN HOUR.

SCOTT

Special weather statement, Jun 13, 4:18 PM CDT, 38 minutes before

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Special weather statement, Jun 13, 4:20 PM CDT, 36 minutes before

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Special weather statement, Jun 13, 4:40 PM CDT, 16 minutes before

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<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
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  <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.
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        Please try again in a few minutes.
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Special weather statement, Jun 13, 4:40 PM CDT, 16 minutes before

IAZALL-132240-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE DES MOINES IA
440 PM CDT SUN JUN 13 1993

...A TORNADO WATCH IS IN EFFECT FOR SOUTH CENTRAL AND SOUTHWEST IOWA
   UNTIL 10 PM CDT...

AT 330 PM CDT...INTENSE THUNDERSTORMS WITH EXTREMELY HEAVY RAIN WERE
OCCURRING OVER SOUTHWEST INTO NORTH CENTRAL IOWA.  THE STORMS WERE
LOCATED FROM 35 MILES SOUTHEAST OF COUNCIL BLUFFS NEAR RED OAK...TO 40
MILES WEST OF DES MOINES NEAR GUTHRIE CENTER.  OTHER STRONG STORMS WERE
45 MILES NORTHEAST OF COUNCIL BLUFFS NEAR DENISON...35 MILES NORTHWEST
OF DES MOINES NEAR OGDEN...AND 40 MILES SOUTHWEST OF MASON CITY NEAR
ALGONA.

THESE STORMS WERE PRODUCING TORRENTIAL RAIN...GUSTY WINDS...NEARLY
CONTINUOUS LIGHTNING AND PEA TO MARBLE SIZE HAIL.  THE EXTREME RAINFALL
WAS CAUSING URBAN FLOODING IN SOME LOCATIONS.

THE STORMS WERE PART OF AN AREA OF SHOWERS AND STORMS OCCURRING OVER
THE WEST TWO-THIRDS OF IOWA...GENERALLY WEST OF A LINE FROM MASON CITY
TO BELLE PLAINE TO LAMONI.  BELLE PLAINE IS 30 MILES WEST OF CEDAR
RAPIDS.

THE STORMS AND SHOWERS WERE MOVING NORTHEAST AT 30 MILES AN HOUR.

JAK/WPM

The office that day

Everything else NWS Des Moines, IA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 12, 10:24 PM CDT	Flash Flood Warning	DMX	Hamilton, Webster	81 min
Jun 13, 3:51 PM CDT	Severe Thunderstorm Warning	DMX	Cass	54 min
Jun 13, 4:03 PM CDT	Tornado Warning	DMX	Cass	27 min
Jun 13, 4:15 PM CDT	Severe Thunderstorm Warning	DMX	Adams	45 min
Jun 13, 5:13 PM CDT	Severe Thunderstorm Warning	DMX	Greene	32 min
Jun 13, 5:40 PM CDT	Flash Flood Warning	DMX	Adams	2 hr
Jun 13, 6:18 PM CDT	Severe Thunderstorm Warning	DMX	Ringgold, Union	27 min
Jun 13, 6:25 PM CDT	Tornado Warning	DMX	Warren	35 min
Jun 13, 6:49 PM CDT	Severe Thunderstorm Warning	DMX	Floyd, Mitchell	41 min
Jun 13, 6:52 PM CDT	Severe Thunderstorm Warning	DMX	Decatur	53 min
Jun 13, 6:52 PM CDT	Severe Thunderstorm Warning	DMX	Ringgold	37 min

Nearby

Severe Thunderstorm Warnings in Iowa, 1993 Every severe thunderstorm warning in 1993

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.