Alert archive / Texas / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 104, NWS Houston/Galveston, TX

June 4, 2003Walker County, Texas

NWS Houston/Galveston, TX issued this severe thunderstorm warning at Jun 4, 2003, 12:27 AM CDT for Walker County, Texas. It was in force for 48 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, 12:27 AM CDT (05:27 UTC)
Expired: Jun 4, 2003, 1:15 AM CDT
In force: 48 min
Issued by: NWS Houston/Galveston, TX
Area: Counties, with a storm outline in the text

County Walker County, TX

The radar

The Houston radar (KHGX), 149 km from the middle of the area, began a volume at 05:29 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 nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 5.5 hours before the alert went out and 238 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 3, 8:29 PM CDT, 3 hours 58 minutes earlier.

Area forecast discussion, Jun 3, 8:29 PM CDT, 3 hours 58 minutes before

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Hazardous weather outlook, Jun 3, 8:45 PM CDT, 3 hours 42 minutes before

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In the hours before

Local storm report, Jun 3, 10:39 PM CDT, 1 hour 48 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, 1:12 AM CDT	Severe Thunderstorm Warning	HGX	Walker	48 min
Jun 4, 2:03 AM CDT	Severe Thunderstorm Warning	HGX	Grimes	42 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; radar from the NEXRAD Level II archive.