Alert archive / Iowa / Flash Flood Warnings in 1993

Flash Flood Warning 22, NWS Quad Cities, IA

July 5, 1993Delaware County, Iowa

NWS Quad Cities, IA issued this flash flood warning at Jul 5, 1993, 5:35 PM CDT for Delaware County, Iowa. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued
Jul 5, 1993, 5:35 PM CDT (22:35 UTC)
Expired
Jul 5, 1993, 10:05 PM CDT
In force
5 hr
Issued by
NWS Quad Cities, IA
Area
Whole counties

County Delaware County, IA

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 10.6 hours before the alert went out and 345 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, Green Bay/Straub, WI at 12:00Z on 1993-07-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 64 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Green Bay/Straub, WI at 12:00Z on 1993-07-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 59 square meters per square second.19395878Sfc1 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
64 J/kg
Mixed-layer CIN
-122 J/kg
Mixed-layer LCL
859 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
59 m²/s²
0-3 km storm-relative helicity
128 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

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, Jul 5, 3:33 PM CDT, 2 hours 2 minutes before
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Special weather statement, Jul 5, 4:33 PM CDT, 1 hour 2 minutes before
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Special weather statement, Jul 5, 4:39 PM CDT, 56 minutes before
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Special weather statement, Jul 5, 4:45 PM CDT, 50 minutes before
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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Special weather statement, Jul 5, 4:45 PM CDT, 50 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.
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Special weather statement, Jul 5, 5:30 PM CDT, 5 minutes before
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<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>
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The office that day

Everything else NWS Quad Cities, IA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 5, 3:44 AM CDTFlash Flood WarningDVNJones3 hr
Jul 5, 6:11 AM CDTFlash Flood WarningDVNJones4 hr
Jul 5, 7:21 AM CDTFlash Flood WarningDVNDubuque4 hr
Jul 5, 8:13 AM CDTFlash Flood WarningDVNJackson4 hr
Jul 5, 9:36 AM CDTFlash Flood WarningDVNJones4 hr
Jul 5, 10:50 AM CDTFlash Flood WarningDVNDubuque7 hr
Jul 5, 11:40 AM CDTFlash Flood WarningDVNJones6 hr
Jul 5, 12:06 PM CDTFlash Flood WarningDVNDelaware69 min
Jul 5, 4:31 PM CDTSevere Thunderstorm WarningDVNJones29 min
Jul 5, 5:35 PM CDTFlash Flood WarningDVNJackson5 hr
Jul 5, 5:35 PM CDTFlash Flood WarningDVNDubuque, Jones6 hr
Jul 5, 1:43 PM CDTFlash Flood WarningDVNJo Daviess4 hr
Jul 5, 5:35 PM CDTFlash Flood WarningDVNLafayette6 hr

Nearby

Flash Flood Warnings in Iowa, 1993Every 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.