Alert archive / Texas / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 76, NWS Fort Worth, TX

March 30, 2008Delta County, Hopkins County, Lamar County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Mar 30, 2008, 1:32 AM CDT for Delta County, Hopkins County, Lamar County, Texas. It was in force for 58 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: Mar 30, 2008, 1:32 AM CDT (06:32 UTC)
Expired: Mar 30, 2008, 2:30 AM CDT
In force: 58 min
Issued by: NWS Fort Worth, TX
Area: Storm-based polygon

Counties Delta County, TX, Hopkins County, TX, Lamar County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 183 km from the middle of the area, began a volume at 06:33 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

Shreveport, LA (KSHV), launched 00:00Z, 6.5 hours before the alert went out and 201 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: 1009 J/kg
Mixed-layer CIN: -33 J/kg
Mixed-layer LCL: 1126 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 88 m²/s²
0-3 km storm-relative helicity: 217 m²/s²
Significant tornado parameter: 0.8
Supercell composite: 6.2

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 Fort Worth, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Mar 29, 9:07 PM CDT, 4 hours 25 minutes earlier.

Area forecast discussion, Mar 29, 9:07 PM CDT, 4 hours 25 minutes before

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Hazardous weather outlook, Mar 29, 9:35 PM CDT, 3 hours 57 minutes before

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In the hours before

Special weather statement, Mar 29, 9:20 PM CDT, 4 hours 12 minutes before

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Local storm report, Mar 29, 9:27 PM CDT, 4 hours 5 minutes before

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Special weather statement, Mar 29, 11:32 PM CDT, 2 hours before

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Special weather statement, Mar 30, 12:06 AM CDT, 1 hour 26 minutes before

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Local storm report, Mar 30, 12:23 AM CDT, 1 hour 9 minutes before

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Special weather statement, Mar 30, 12:33 AM CDT, 59 minutes before

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The office that day

Everything else NWS Fort Worth, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 29, 7:37 PM CDT	Special Weather Statement	FWD	Anderson	23 min
Mar 29, 9:20 PM CDT	Special Weather Statement	FWD	Anderson	25 min
Mar 29, 11:32 PM CDT	Special Weather Statement	FWD	Rains	28 min
Mar 29, 11:48 PM CDT	Severe Thunderstorm Warning	FWD	Hopkins, Rains	42 min
Mar 30, 12:06 AM CDT	Special Weather Statement	FWD	Van Zandt	24 min
Mar 30, 12:28 AM CDT	Severe Thunderstorm Warning	FWD	Delta, Hopkins	34 min
Mar 30, 12:33 AM CDT	Special Weather Statement	FWD	Rains	27 min
Mar 30, 12:48 AM CDT	Severe Thunderstorm Warning	FWD	Hopkins, Rains	27 min
Mar 30, 1:18 AM CDT	Severe Thunderstorm Warning	FWD	Hopkins	27 min
Mar 30, 4:16 AM CDT	Special Weather Statement	FWD	Henderson	59 min
Mar 30, 4:19 AM CDT	Special Weather Statement	FWD	Johnson	56 min
Mar 30, 4:37 AM CDT	Severe Thunderstorm Warning	FWD	Henderson, Van Zandt	53 min
Mar 30, 5:44 AM CDT	Special Weather Statement	FWD	Van Zandt	31 min
Mar 30, 6:01 AM CDT	Severe Thunderstorm Warning	FWD	Rains, Van Zandt	29 min
Mar 30, 6:49 AM CDT	Special Weather Statement	FWD	Hopkins	26 min
Mar 30, 7:13 AM CDT	Severe Thunderstorm Warning	FWD	Hopkins, Rains	62 min
Mar 30, 7:55 AM CDT	Severe Thunderstorm Warning	FWD	Hopkins	50 min
Mar 30, 8:42 AM CDT	Severe Thunderstorm Warning	FWD	Hopkins	18 min
Mar 30, 1:36 PM CDT	Severe Thunderstorm Warning	FWD	Anderson	24 min
Mar 30, 2:13 PM CDT	Special Weather Statement	FWD	Henderson	32 min
Mar 30, 3:10 PM CDT	Special Weather Statement	FWD	Anderson	35 min
Mar 30, 6:54 PM CDT	Special Weather Statement	FWD	Collin	36 min

Nearby

Severe Thunderstorm Warnings in Texas, 2008 Every severe thunderstorm warning in 2008

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.