Alert archive / Texas / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 39, NWS Houston/Galveston, TX

April 5, 2023Jackson County, Texas

NWS Houston/Galveston, TX issued this severe thunderstorm warning at Apr 5, 2023, 7:14 PM CDT for Jackson County, Texas. It was in force for 31 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 5, 2023, 7:14 PM CDT (00:14 UTC)
Expired: Apr 5, 2023, 7:45 PM CDT
In force: 31 min
Issued by: NWS Houston/Galveston, TX
Area: Storm-based polygon
Hail: 1.25 in
Wind: 50.0 mph

County Jackson County, TX

The radar

The Houston radar (KHGX), 156 km from the middle of the area, began a volume at 00:16 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

Corpus Christi, TX (KCRP), launched 00:00Z, 0.2 hours before the alert went out and 155 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 725 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 115 m²/s²
0-3 km storm-relative helicity: 261 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 12.2

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 5, 6:22 PM CDT, 52 minutes earlier.

Area forecast discussion, Apr 5, 6:22 PM CDT, 52 minutes before

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In the hours before

Special weather statement, Apr 5, 6:43 PM CDT, 31 minutes before

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Special weather statement, Apr 5, 6:50 PM CDT, 24 minutes before

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Special weather statement, Apr 5, 6:59 PM CDT, 15 minutes before

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Special weather statement, Apr 5, 7:05 PM CDT, 9 minutes before

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Special weather statement, Apr 5, 7:08 PM CDT, 6 minutes before

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Special weather statement, Apr 5, 7:12 PM CDT, 2 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
Apr 5, 7:05 PM CDT	Special Weather Statement	HGX	Montgomery	25 min
Apr 5, 7:08 PM CDT	Special Weather Statement	HGX	Jackson	37 min
Apr 5, 7:12 PM CDT	Special Weather Statement	HGX	Austin, Colorado	33 min
Apr 5, 7:20 PM CDT	Special Weather Statement	HGX	San Jacinto	25 min
Apr 5, 7:22 PM CDT	Special Weather Statement	HGX	Houston	38 min
Apr 5, 7:27 PM CDT	Severe Thunderstorm Warning	HGX	Montgomery, San Jacinto, Walker	22 min
Apr 5, 7:32 PM CDT	Special Weather Statement	HGX	Liberty	28 min
Apr 5, 7:38 PM CDT	Special Weather Statement	HGX	Montgomery	37 min
Apr 5, 7:41 PM CDT	Special Weather Statement	HGX	Jackson	34 min
Apr 5, 7:44 PM CDT	Special Weather Statement	HGX	Colorado	31 min
Apr 5, 7:46 PM CDT	Special Weather Statement	HGX	Waller	44 min
Apr 5, 7:48 PM CDT	Special Weather Statement	HGX	Austin	42 min
Apr 5, 7:51 PM CDT	Special Weather Statement	HGX	Walker	24 min
Apr 5, 7:52 PM CDT	Special Weather Statement	HGX	Jackson	38 min
Apr 5, 7:59 PM CDT	Special Weather Statement	HGX	Polk, San Jacinto	46 min
Apr 5, 8:11 PM CDT	Special Weather Statement	HGX	Trinity	34 min
Apr 5, 8:16 PM CDT	Severe Thunderstorm Warning	HGX	Houston, San Jacinto, Trinity, Walker	29 min
Apr 5, 8:24 PM CDT	Special Weather Statement	HGX	Waller	36 min
Apr 5, 8:42 PM CDT	Special Weather Statement	HGX	Trinity	33 min
Apr 5, 8:43 PM CDT	Special Weather Statement	HGX	Montgomery	32 min
Apr 5, 8:59 PM CDT	Special Weather Statement	HGX	Colorado	31 min
Apr 5, 9:08 PM CDT	Severe Thunderstorm Warning	HGX	Austin, Colorado, Waller, Wharton	37 min
Apr 5, 9:11 PM CDT	Special Weather Statement	HGX	Polk	34 min
Apr 5, 9:23 PM CDT	Severe Thunderstorm Warning	HGX	Polk	15 min
Apr 5, 9:42 PM CDT	Special Weather Statement	HGX	Montgomery, Walker	33 min
Apr 5, 10:05 PM CDT	Special Weather Statement	HGX	San Jacinto	25 min
Apr 5, 10:31 PM CDT	Special Weather Statement	HGX	Polk, San Jacinto	29 min
Apr 5, 10:48 PM CDT	Severe Thunderstorm Warning	HGX	Colorado	26 min
Apr 5, 10:53 PM CDT	Special Weather Statement	HGX	Polk	37 min
Apr 5, 11:28 PM CDT	Special Weather Statement	HGX	Austin	32 min
Apr 6, 12:00 AM CDT	Special Weather Statement	HGX	Austin, Waller	30 min
Apr 6, 12:01 AM CDT	Special Weather Statement	HGX	Grimes	44 min
Apr 6, 12:36 AM CDT	Special Weather Statement	HGX	Walker	39 min
Apr 6, 1:57 AM CDT	Areal Flood Advisory	HGX	Montgomery, Walker	3 hr
Apr 6, 2:17 AM CDT	Special Weather Statement	HGX	San Jacinto	28 min
Apr 6, 4:58 AM CDT	Areal Flood Advisory	HGX	Grimes, Montgomery	3 hr
Apr 6, 6:30 AM CDT	Areal Flood Advisory	HGX	Austin, Brazos, Colorado, Grimes, Waller, Washington	3 hr
Apr 6, 7:43 AM CDT	Areal Flood Advisory	HGX	Grimes, Montgomery, Polk, San Jacinto, Trinity, Walker and 1 more	3 hr
Apr 6, 10:54 AM CDT	Areal Flood Advisory	HGX	Grimes, Montgomery, Polk, San Jacinto, Trinity, Walker and 1 more	111 min
Apr 6, 3:37 PM CDT	Small Craft Advisory	HGX		18 hr
Apr 6, 4:14 PM CDT	Special Weather Statement	HGX	Chambers	31 min
Apr 6, 5:53 PM CDT	Special Weather Statement	HGX	Waller	37 min

Nearby

Severe Thunderstorm Warnings in Texas, 2023 Every 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.