Alert archive / Texas / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 106, NWS Houston/Galveston, TX

June 4, 2003Grimes County, Texas

NWS Houston/Galveston, TX issued this severe thunderstorm warning at Jun 4, 2003, 2:03 AM CDT for Grimes County, Texas. It was in force for 42 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 4, 2003, 2:03 AM CDT (07:03 UTC)
Expired: Jun 4, 2003, 2:45 AM CDT
In force: 42 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 4, 12:35 AM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 7.1 hours before the alert went out and 271 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: 3745 J/kg
Mixed-layer CIN: -4 J/kg
Mixed-layer LCL: 720 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 5 m²/s²
0-3 km storm-relative helicity: 25 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.3

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 4, 12:40 AM CDT, 1 hour 23 minutes earlier.

Area forecast discussion, Jun 4, 12:40 AM CDT, 1 hour 23 minutes before

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Hazardous weather outlook, Jun 3, 8:45 PM CDT, 5 hours 18 minutes before

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In the hours before

Local storm report, Jun 3, 10:39 PM CDT, 3 hours 24 minutes before

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Special weather statement, Jun 4, 12:35 AM CDT, 1 hour 28 minutes before

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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 3, 7:04 PM CDT	Tornado Warning	HGX	Fort Bend, Harris	26 min
Jun 4, 12:27 AM CDT	Severe Thunderstorm Warning	HGX	Walker	48 min
Jun 4, 1:12 AM CDT	Severe Thunderstorm Warning	HGX	Walker	48 min
Jun 4, 3:42 AM CDT	Severe Thunderstorm Warning	HGX	Brazos	33 min
Jun 4, 6:09 AM CDT	Special Marine Warning	HGX		96 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.