Alert archive / Texas / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 221, NWS Fort Worth, TX

August 11, 2014Bell County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Aug 11, 2014, 2:21 PM CDT for Bell County, Texas. It was in force for 39 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: Aug 11, 2014, 2:21 PM CDT (19:21 UTC)
Expired: Aug 11, 2014, 3:00 PM CDT
In force: 39 min
Issued by: NWS Fort Worth, TX
Area: Storm-based polygon

County Bell County, TX

The radar

The Ft Hood radar (KGRK), 36 km from the middle of the area, began a volume at 19:23 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

Fort Worth, TX (KFWD), launched 12:00Z, 7.4 hours before the alert went out and 200 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: 108 J/kg
Mixed-layer CIN: -241 J/kg
Mixed-layer LCL: 1675 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 27 m²/s²
0-3 km storm-relative helicity: 65 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 Fort Worth, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 11, 1:15 PM CDT, 1 hour 6 minutes earlier.

Area forecast discussion, Aug 11, 1:15 PM CDT, 1 hour 6 minutes before

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Hazardous weather outlook, Aug 11, 1:37 PM CDT, 44 minutes before

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In the hours before

Special weather statement, Aug 11, 12:30 PM CDT, 1 hour 51 minutes before

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Special weather statement, Aug 11, 1:10 PM CDT, 1 hour 11 minutes before

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Special weather statement, Aug 11, 1:49 PM CDT, 32 minutes before

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Special weather statement, Aug 11, 2:06 PM CDT, 15 minutes before

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Local storm report, Aug 11, 2:14 PM CDT, 7 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
Aug 10, 8:43 PM CDT	Areal Flood Advisory	FWD	Young	3 hr
Aug 11, 12:30 PM CDT	Special Weather Statement	FWD	Freestone	60 min
Aug 11, 12:44 PM CDT	Severe Thunderstorm Warning	FWD	Freestone, Limestone	61 min
Aug 11, 1:10 PM CDT	Special Weather Statement	FWD	Falls	20 min
Aug 11, 1:16 PM CDT	Severe Thunderstorm Warning	FWD	Falls	59 min
Aug 11, 1:39 PM CDT	Severe Thunderstorm Warning	FWD	Freestone, Leon, Limestone	66 min
Aug 11, 1:49 PM CDT	Special Weather Statement	FWD	Bell	26 min
Aug 11, 2:03 PM CDT	Severe Thunderstorm Warning	FWD	Anderson	57 min
Aug 11, 2:06 PM CDT	Special Weather Statement	FWD	Bell	24 min
Aug 11, 2:25 PM CDT	Severe Thunderstorm Warning	FWD	Limestone	38 min
Aug 11, 2:48 PM CDT	Severe Thunderstorm Warning	FWD	Leon	27 min
Aug 11, 2:54 PM CDT	Severe Thunderstorm Warning	FWD	Anderson	51 min
Aug 11, 3:22 PM CDT	Special Weather Statement	FWD	Robertson	23 min
Aug 11, 3:23 PM CDT	Special Weather Statement	FWD	Bell	37 min
Aug 11, 3:50 PM CDT	Special Weather Statement	FWD	McLennan	25 min
Aug 11, 3:52 PM CDT	Special Weather Statement	FWD	Coryell	23 min
Aug 11, 4:00 PM CDT	Special Weather Statement	FWD	Mills	30 min
Aug 11, 4:13 PM CDT	Severe Thunderstorm Warning	FWD	Coryell	37 min
Aug 11, 4:41 PM CDT	Special Weather Statement	FWD	Coryell	34 min
Aug 11, 4:50 PM CDT	Special Weather Statement	FWD	McLennan	25 min
Aug 11, 5:14 PM CDT	Special Weather Statement	FWD	Lampasas	31 min
Aug 11, 6:45 PM CDT	Special Weather Statement	FWD	Hamilton	30 min

Nearby

Severe Thunderstorm Warnings in Texas, 2014 Every severe thunderstorm warning in 2014

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.