Alert archive / Texas / Flash Flood Warnings in 1993

Flash Flood Warning 4, NWS Houston/Galveston, TX

April 3, 1993Harris County, Texas

NWS Houston/Galveston, TX issued this flash flood warning at Apr 3, 1993, 10:44 PM CST for Harris County, Texas. It was in force for 91 min.

The area

The counties it named.

The facts

Issued
Apr 3, 1993, 10:44 PM CST (04:44 UTC)
Expired
Apr 4, 1993, 12:15 AM CST
In force
91 min
Issued by
NWS Houston/Galveston, TX
Area
Whole counties

County Harris County, TX

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 4.7 hours before the alert went out and 213 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, Lake Charles Mun, LA at 00:00Z on 1993-04-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 5 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, Lake Charles Mun, LA at 00:00Z on 1993-04-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 346 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
5 J/kg
Mixed-layer CIN
-464 J/kg
Mixed-layer LCL
538 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
346 m²/s²
0-3 km storm-relative helicity
508 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 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, Apr 3, 8:42 PM CST, 2 hours 2 minutes before
TXZ047-040400-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON TX
842 PM CST SAT APR 03 1993

AT 835 PM A STRONG THUNDERSTORM WAS DUMPING VERY HEAVY RAIN NEAR CLEAR
LAKE IN SOUTHERN HARRIS COUNTY AND WAS PRODUCING STREET FLOODING...
INTENSE LIGHTNING ALONG WITH PEA TO MARBLE SIZE HAIL.

THIS STORM WAS MOVING EAST AND NORTHEAST AT 20 MILES AN HOUR.

AVOID AREAS THAT FLOOD EASILY...STAY INDOORS AND AWAY FROM WINDOWS
AND ELECTRICAL APPLIANCES UNTIL THE STORM MOVES AWAY.
Special weather statement, Apr 3, 8:43 PM CST, 2 hours 1 minute before
TXZ047-040400-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON TX
842 PM CST SAT APR 03 1993

AT 835 PM A STRONG THUNDERSTORM WAS DUMPING VERY HEAVY RAIN NEAR CLEAR
LAKE IN SOUTHERN HARRIS COUNTY AND WAS PRODUCING STREET FLOODING...
INTENSE LIGHTNING ALONG WITH PEA TO MARBLE SIZE HAIL.

THIS STORM WAS MOVING EAST AND NORTHEAST AT 20 MILES AN HOUR.

AVOID AREAS THAT FLOOD EASILY...STAY INDOORS AND AWAY FROM WINDOWS
AND ELECTRICAL APPLIANCES UNTIL THE STORM MOVES AWAY.
Local storm report, Apr 3, 10:41 PM CST, 3 minutes before
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Local storm report, Apr 3, 10:41 PM CST, 3 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 Houston/Galveston, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 3, 7:11 PM CSTSevere Thunderstorm WarningHGXBrazoria64 min
Apr 3, 7:45 PM CSTSevere Thunderstorm WarningHGXGalveston60 min
Apr 3, 8:21 PM CSTSevere Thunderstorm WarningHGXChambers69 min
Apr 3, 9:32 PM CSTSevere Thunderstorm WarningHGXChambers58 min
Apr 3, 9:46 PM CSTSevere Thunderstorm WarningHGXGalveston59 min
Apr 3, 10:23 PM CSTFlash Flood WarningHGXGalveston2 hr

Nearby

Flash Flood Warnings in Texas, 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.