Alert archive / Texas / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 43, NWS Houston/Galveston, TX

April 26, 2006Montgomery County, Texas

NWS Houston/Galveston, TX issued this severe thunderstorm warning at Apr 26, 2006, 2:31 AM CDT for Montgomery County, Texas. It was in force for 44 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 26, 2006, 2:31 AM CDT (07:31 UTC)
Expired
Apr 26, 2006, 3:15 AM CDT
In force
44 min
Issued by
NWS Houston/Galveston, TX
Area
Counties, with a storm outline in the text

County Montgomery County, TX

The radar

The Houston radar (KHGX), 101 km from the middle of the area, began a volume at 07:32 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 26, 1:01 AM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 7.5 hours before the alert went out and 222 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 2006-04-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2353 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 2006-04-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 3 square meters per square second.193958Sfc1 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
2353 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
758 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
3 m²/s²
0-3 km storm-relative helicity
38 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.7

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 26, 1:42 AM CDT, 49 minutes earlier.

Area forecast discussion, Apr 26, 1:42 AM CDT, 49 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>
Hazardous weather outlook, Apr 26, 2:20 AM CDT, 11 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>

In the hours before

Local storm report, Apr 26, 12:36 AM CDT, 1 hour 55 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1236 AM CDT WED APR 26 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1230 AM     HAIL             COLLEGE STATION         30.60N 96.31W
04/26/2006  M1.50 INCH       BRAZOS             TX   TRAINED SPOTTER

            HAIL COVERING THE GROUND ON TEXAS A AND M CAMPUS.

1230 AM     HAIL             WINNIE                  29.82N 94.38W
04/26/2006  E1.75 INCH       CHAMBERS           TX   LAW ENFORCEMENT

&&

KP

The office that day

Everything else NWS Houston/Galveston, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 25, 7:59 PM CDTSevere Thunderstorm WarningHGXHarris46 min
Apr 25, 8:07 PM CDTSevere Thunderstorm WarningHGXLiberty38 min
Apr 25, 9:22 PM CDTSevere Thunderstorm WarningHGXLiberty38 min
Apr 25, 10:15 PM CDTSevere Thunderstorm WarningHGXChambers45 min
Apr 25, 11:00 PM CDTSevere Thunderstorm WarningHGXChambers45 min
Apr 25, 11:49 PM CDTSevere Thunderstorm WarningHGXChambers41 min
Apr 26, 12:28 AM CDTSevere Thunderstorm WarningHGXBrazos, Burleson47 min
Apr 26, 12:32 AM CDTSevere Thunderstorm WarningHGXChambers43 min
Apr 26, 12:36 AM CDTSevere Thunderstorm WarningHGXWashington39 min
Apr 26, 12:40 AM CDTSevere Thunderstorm WarningHGXGrimes50 min
Apr 26, 1:03 AM CDTTornado WarningHGXWashington27 min
Apr 26, 1:09 AM CDTTornado WarningHGXGrimes, Waller51 min
Apr 26, 1:10 AM CDTSevere Thunderstorm WarningHGXWalker50 min
Apr 26, 1:32 AM CDTSevere Thunderstorm WarningHGXPolk, San Jacinto, Trinity43 min
Apr 26, 1:36 AM CDTSevere Thunderstorm WarningHGXAustin, Colorado45 min
Apr 26, 2:04 AM CDTSevere Thunderstorm WarningHGXHarris, Waller31 min

Nearby

Severe Thunderstorm Warnings in Texas, 2006Every severe thunderstorm warning in 2006

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.