Alert archive / Iowa / Severe Thunderstorm Warnings in 1988

Severe Thunderstorm Warning 52, NWS Sioux Falls, SD

August 22, 1988Ida County, Woodbury County, Iowa

NWS Sioux Falls, SD issued this severe thunderstorm warning at Aug 22, 1988, 3:07 AM CDT for Ida County, Woodbury County, Iowa. It was in force for 68 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: Aug 22, 1988, 3:07 AM CDT (08:07 UTC)
Expired: Aug 22, 1988, 4:15 AM CDT
In force: 68 min
Issued by: NWS Sioux Falls, SD
Area: Whole counties

Counties Ida County, IA, Woodbury 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

Time	Report	Where	Remark
Aug 22, 3:30 AM CDT	Thunderstorm Wind 50	Ida, 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, 8.1 hours before the alert went out and 128 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: 3596 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 12 m²/s²
0-3 km storm-relative helicity: 143 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, Aug 22, 12:47 AM CDT, 2 hours 20 minutes before

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE HURON SD
1240 AM CDT MON AUG 22 1988

AT 1230 AM CDT...NUMEROUS INTENSE THUNDERSTORMS...WITH VERY HEAVY RAIN
...CONTINUED OVER MUCH OF SOUTHEAST SOUTH DAKOTA...NORTHWEST IOWA...
NORTHEAST NEBRASKA AND SOUTHWEST MINNESOTA.

THESE STORMS WERE MOSTLY SOUTH OF A LINE FROM FLANDREAU TO BONESTEEL
WITH A THE HEAVIEST STORMS LOCATED 5 MILES SOUTH OF ALCESTER...25 MILES
NORTHEAST OF SIOUX CITY IOWA...10 MILES SOUTH OF YANKTON...10 MILES
NORTHWEST OF AVON AND JUST SOUTHWEST OF BRIDGEWATER.  A SLIGHT INCREASE
IN INTENSITY WAS NOTED.

PERSONS IN THE SOUTHEAST PARTS OF THE STATE SHOULD REMAIN ALERT AS THESE
STORMS ARE CAPABLE OF PRODUCING DANGEROUS LIGHTNING...VERY HEAVY RAIN
AND HAIL.

MOVEMENT WAS EAST AT 30 MILES AN HOUR.
PFEIFFER

Local storm report, Aug 22, 12:50 AM CDT, 2 hours 17 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1250 AM CDT MON AUG 22 1988

STORM DATA FOR SUNDAY AUG 22 1988

 TIME            COUNTY..LOCATION           CHARACTER OF STORM..DAMAGE
.......................................................................

 1130 PM CDT    YANKTON...AT MAYFIELD      GOLF BALL SIZE HAIL PUT DENTS
                                           INTO CARS.
KAPELA

Special weather statement, Aug 22, 1:44 AM CDT, 1 hour 23 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, Aug 22, 1:44 AM CDT, 1 hour 23 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, Aug 22, 2:38 AM CDT, 29 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, Aug 22, 2:45 AM CDT, 22 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 Sioux Falls, SD issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 21, 8:17 PM CDT	Severe Thunderstorm Warning	FSD	Lincoln, Turner	58 min
Aug 22, 12:16 AM CDT	Severe Thunderstorm Warning	FSD	Clay	29 min
Aug 22, 12:25 AM CDT	Severe Thunderstorm Warning	FSD	Union	65 min
Aug 21, 11:56 PM CDT	Severe Thunderstorm Warning	FSD	Sioux	64 min
Aug 22, 12:56 AM CDT	Severe Thunderstorm Warning	FSD	Cherokee, O'Brien, Plymouth	64 min
Aug 22, 2:04 AM CDT	Severe Thunderstorm Warning	FSD	Woodbury	56 min
Aug 22, 2:28 AM CDT	Severe Thunderstorm Warning	FSD	Monona	62 min
Aug 21, 7:20 PM CDT	Severe Thunderstorm Warning	FSD	Lincoln, Lyon	55 min

Nearby

Severe Thunderstorm Warnings in Iowa, 1988 Every severe thunderstorm warning in 1988

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.