Alert archive / Iowa / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 53, NWS Des Moines, IA

May 23, 19894 counties in Iowa

NWS Des Moines, IA issued this severe thunderstorm warning at May 23, 1989, 10:25 PM CDT for 4 counties in Iowa. It was in force for 80 min. 4 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
May 23, 1989, 10:25 PM CDT (03:25 UTC)
Expired
May 23, 1989, 11:45 PM CDT
In force
80 min
Issued by
NWS Des Moines, IA
Area
Whole counties

Counties Buena Vista County, IA, Calhoun County, IA, Pocahontas County, IA, Sac County, IA

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

TimeReportWhereRemark
May 23, 10:29 PM CDTThunderstorm Wind 52Pocahontas, IA
May 23, 10:40 PM CDTHail 2Sac, IA
May 23, 10:55 PM CDTHail 2Sac, IA
May 23, 11:42 PM CDTHail 1.75Sac, IA

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

Omaha, NE (KOAX), launched 00:00Z, 3.4 hours before the alert went out and 184 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-pSkew-T log-p diagram, Omaha, NE at 00:00Z on 1989-05-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Omaha, NE at 00:00Z on 1989-05-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 47 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
3566 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
47 m²/s²
0-3 km storm-relative helicity
256 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, May 23, 7:43 PM CDT, 2 hours 42 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, May 23, 8:44 PM CDT, 1 hour 41 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, May 23, 9:45 PM CDT, 40 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.

IssuedProductOfficeCountiesLasted
May 23, 8:34 PM CDTSevere Thunderstorm WarningDMXDickinson41 min
May 23, 9:04 PM CDTSevere Thunderstorm WarningDMXClay41 min
May 23, 9:30 PM CDTSevere Thunderstorm WarningDMXBuena Vista, Palo Alto, Pocahontas60 min
May 23, 11:20 PM CDTSevere Thunderstorm WarningDMXCarroll, Crawford70 min
May 23, 11:29 PM CDTSevere Thunderstorm WarningDMXWebster46 min
May 23, 11:35 PM CDTSevere Thunderstorm WarningDMXWebster40 min
May 24, 12:17 AM CDTSevere Thunderstorm WarningDMXBoone, Story58 min
May 24, 12:34 AM CDTSevere Thunderstorm WarningDMXAudubon, Carroll, Greene, Guthrie56 min
May 24, 12:37 AM CDTSevere Thunderstorm WarningDMXCrawford, Sac53 min
May 24, 12:56 AM CDTSevere Thunderstorm WarningDMXCarroll34 min
May 24, 1:35 AM CDTSevere Thunderstorm WarningDMXCarroll, Greene, Guthrie40 min
May 24, 1:51 AM CDTSevere Thunderstorm WarningDMXJasper39 min
May 24, 2:04 AM CDTSevere Thunderstorm WarningDMXDallas26 min
May 24, 2:15 AM CDTSevere Thunderstorm WarningDMXMarion30 min
May 24, 2:30 AM CDTSevere Thunderstorm WarningDMXJasper, Mahaska, Poweshiek45 min
May 24, 2:33 AM CDTSevere Thunderstorm WarningDMXDallas, Madison, Polk, Warren57 min
May 24, 3:01 AM CDTSevere Thunderstorm WarningDMXKeokuk, Wapello29 min
May 24, 3:19 AM CDTTornado WarningDMXLucas, Warren41 min
May 24, 3:49 AM CDTSevere Thunderstorm WarningDMXBuchanan, Fayette56 min
May 24, 4:04 AM CDTSevere Thunderstorm WarningDMXJasper, Polk56 min
May 24, 4:52 AM CDTSevere Thunderstorm WarningDMXMahaska, Marion53 min
May 24, 5:25 PM CDTSevere Thunderstorm WarningDMXAdams, Cass50 min
May 24, 5:49 PM CDTTornado WarningDMXAdams26 min
May 24, 6:02 PM CDTTornado WarningDMXUnion58 min
May 24, 6:10 PM CDTSevere Thunderstorm WarningDMXHamilton50 min
May 24, 6:24 PM CDTTornado WarningDMXAdams16 min
May 24, 6:32 PM CDTTornado WarningDMXHamilton41 min
May 24, 6:50 PM CDTTornado WarningDMXRinggold, Union55 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.