Alert archive / Iowa / Flash Flood Warnings in 1993

Flash Flood Warning 104, NWS Des Moines, IA

August 14, 1993Hardin County, Iowa

NWS Des Moines, IA issued this flash flood warning at Aug 14, 1993, 1:59 PM CDT for Hardin County, Iowa. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued: Aug 14, 1993, 1:59 PM CDT (18:59 UTC)
Expired: Aug 14, 1993, 4:00 PM CDT
In force: 2 hr
Issued by: NWS Des Moines, IA
Area: Whole counties

County Hardin County, IA

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 7.0 hours before the alert went out and 285 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: 1021 J/kg
Mixed-layer CIN: -204 J/kg
Mixed-layer LCL: 927 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 107 m²/s²
0-3 km storm-relative helicity: 107 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.6

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 flash flood 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 14, 12:51 PM CDT, 1 hour 8 minutes before

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Special weather statement, Aug 14, 1:44 PM CDT, 15 minutes before

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Special weather statement, Aug 14, 1:45 PM CDT, 14 minutes before

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Special weather statement, Aug 14, 1:46 PM CDT, 13 minutes before

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      <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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      <p id="message2">
        Please try again in a few minutes.
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Special weather statement, Aug 14, 1:50 PM CDT, 9 minutes before

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</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.
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Special weather statement, Aug 14, 1:52 PM CDT, 7 minutes before

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<body>
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      <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>
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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 14, 11:36 AM CDT	Severe Thunderstorm Warning	DMX	Buena Vista, Pocahontas	39 min
Aug 14, 12:21 PM CDT	Severe Thunderstorm Warning	DMX	Calhoun, Pocahontas	39 min
Aug 14, 12:41 PM CDT	Flash Flood Warning	DMX	Buena Vista, Pocahontas	3 hr
Aug 14, 5:06 PM CDT	Severe Thunderstorm Warning	DMX	Linn	24 min
Aug 14, 5:17 PM CDT	Severe Thunderstorm Warning	DMX	Iowa	28 min
Aug 14, 5:55 PM CDT	Severe Thunderstorm Warning	DMX	Marion	35 min
Aug 14, 6:08 PM CDT	Severe Thunderstorm Warning	DMX	Mahaska	37 min
Aug 14, 6:21 PM CDT	Flash Flood Warning	DMX	Linn	118 min

Nearby

Flash Flood Warnings in Iowa, 1993 Every flash flood 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.