Alert archive / Texas / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 83, NWS Houston/Galveston, TX

April 28, 20237 counties in Texas

NWS Houston/Galveston, TX issued this severe thunderstorm warning at Apr 28, 2023, 7:25 PM CDT for 7 counties in Texas. It was in force for 50 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Apr 28, 2023, 7:25 PM CDT (00:25 UTC)
Expired
Apr 28, 2023, 8:15 PM CDT
In force
50 min
Issued by
NWS Houston/Galveston, TX
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Austin County, TX, Brazos County, TX, Burleson County, TX, Colorado County, TX, Grimes County, TX, Waller County, TX, Washington County, TX

The radar

The Ft Hood radar (KGRK), 119 km from the middle of the area, began a volume at 00:25 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Apr 28, 3:43 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 0.4 hours before the alert went out and 293 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, Corpus Christi, TX at 00:00Z on 2023-04-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2110 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, Corpus Christi, TX at 00:00Z on 2023-04-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 91 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
2110 J/kg
Mixed-layer CIN
-165 J/kg
Mixed-layer LCL
1085 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
91 m²/s²
0-3 km storm-relative helicity
149 m²/s²
Significant tornado parameter
0.3
Supercell composite
9.4

Open this sounding in Storm Lab

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.

NWS Houston/Galveston, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 28, 6:04 PM CDT, 1 hour 21 minutes earlier.

Area forecast discussion, Apr 28, 6:04 PM CDT, 1 hour 21 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 28, 7:20 PM CDTSpecial Weather StatementHGXSan Jacinto25 min
Apr 28, 8:14 PM CDTSpecial Weather StatementHGXColorado, Wharton31 min
Apr 28, 8:31 PM CDTSevere Thunderstorm WarningHGXJackson29 min
Apr 28, 8:39 PM CDTSpecial Weather StatementHGXFort Bend36 min
Apr 28, 8:58 PM CDTSevere Thunderstorm WarningHGXJackson17 min
Apr 28, 9:01 PM CDTSpecial Marine WarningHGX29 min
Apr 28, 9:05 PM CDTSpecial Weather StatementHGXHarris25 min
Apr 28, 9:11 PM CDTSpecial Weather StatementHGXJackson, Matagorda34 min
Apr 28, 9:17 PM CDTSpecial Marine WarningHGX58 min
Apr 28, 9:23 PM CDTSpecial Marine WarningHGX82 min
Apr 28, 9:29 PM CDTSpecial Weather StatementHGXBrazoria, Harris31 min
Apr 28, 9:40 PM CDTSpecial Weather StatementHGXMatagorda35 min
Apr 28, 9:59 PM CDTSpecial Weather StatementHGXChambers, Galveston46 min
Apr 28, 10:02 PM CDTSpecial Marine WarningHGX88 min
Apr 28, 10:14 PM CDTSpecial Weather StatementHGXBrazoria16 min
Apr 28, 10:30 PM CDTSpecial Marine WarningHGX90 min
Apr 28, 10:44 PM CDTSpecial Weather StatementHGXGalveston46 min
Apr 28, 11:58 PM CDTSpecial Marine WarningHGX62 min
Apr 29, 2:05 AM CDTSmall Craft AdvisoryHGX115 min
Apr 29, 2:44 AM CDTWind AdvisoryHGXAustin, Brazoria, Brazos, Burleson, Chambers, Colorado and 13 more17 hr
Apr 29, 3:37 PM CDTSmall Craft AdvisoryHGX9 hr

Nearby

Severe Thunderstorm Warnings in Texas, 2023Every severe thunderstorm warning in 2023

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; radar from the NEXRAD Level II archive.