Alert archive / Texas / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 110, NWS Houston/Galveston, TX

June 12, 2003Grimes County, Texas

NWS Houston/Galveston, TX issued this severe thunderstorm warning at Jun 12, 2003, 2:38 AM CDT for Grimes County, Texas. It was in force for 22 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: Jun 12, 2003, 2:38 AM CDT (07:38 UTC)
Expired: Jun 12, 2003, 3:00 AM CDT
In force: 22 min
Issued by: NWS Houston/Galveston, TX
Area: Counties, with a storm outline in the text

County Grimes County, TX

The watch it was issued in

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

Issued	Product	Office	Lasted
Jun 12, 1:10 AM CDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 7.6 hours before the alert went out and 283 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: 4924 J/kg
Mixed-layer CIN: -37 J/kg
Mixed-layer LCL: 1353 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 33 m²/s²
0-3 km storm-relative helicity: 121 m²/s²
Significant tornado parameter: 0.8
Supercell composite: 7.0

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 Jun 11, 11:30 PM CDT, 3 hours 8 minutes earlier.

Area forecast discussion, Jun 11, 11:30 PM CDT, 3 hours 8 minutes before

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Hazardous weather outlook, Jun 11, 7:00 PM CDT, 7 hours 38 minutes before

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<body>
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    <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>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 12, 2:05 AM CDT	Severe Thunderstorm Warning	HGX	Brazos	25 min
Jun 12, 1:14 PM CDT	Tornado Warning	HGX	Grimes	31 min
Jun 12, 2:03 PM CDT	Tornado Warning	HGX	Polk	27 min
Jun 12, 2:17 PM CDT	Tornado Warning	HGX	Walker	28 min
Jun 12, 6:50 PM CDT	Severe Thunderstorm Warning	HGX	Houston	55 min

Nearby

Severe Thunderstorm Warnings in Texas, 2003 Every severe thunderstorm warning in 2003

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.