Alert archive / Texas / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 233, NWS Fort Worth, TX

August 16, 2013Jack County, Young County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Aug 16, 2013, 4:49 AM CDT for Jack County, Young County, Texas. It was in force for 71 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 16, 2013, 4:49 AM CDT (09:49 UTC)
Expired: Aug 16, 2013, 6:00 AM CDT
In force: 71 min
Issued by: NWS Fort Worth, TX
Area: Storm-based polygon

Counties Jack County, TX, Young County, TX

The radar

The Dyess AFB radar (KDYX), 107 km from the middle of the area, began a volume at 09:52 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

Amarillo Airport, TX (KAMA), launched 00:00Z, 9.8 hours before the alert went out and 376 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: 1231 J/kg
Mixed-layer CIN: -36 J/kg
Mixed-layer LCL: 2101 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 49 m²/s²
0-3 km storm-relative helicity: 152 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 6.0

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 16, 3:16 AM CDT, 1 hour 33 minutes earlier.

Area forecast discussion, Aug 16, 3:16 AM CDT, 1 hour 33 minutes before

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Hazardous weather outlook, Aug 16, 12:35 AM CDT, 4 hours 14 minutes before

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In the hours before

Special weather statement, Aug 16, 2:35 AM CDT, 2 hours 14 minutes before

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Special weather statement, Aug 16, 3:39 AM CDT, 1 hour 10 minutes before

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Special weather statement, Aug 16, 4:17 AM CDT, 32 minutes before

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Special weather statement, Aug 16, 4:31 AM CDT, 18 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 15, 7:31 PM CDT	Special Weather Statement	FWD	Montague	29 min
Aug 15, 7:54 PM CDT	Special Weather Statement	FWD	Jack	36 min
Aug 15, 8:26 PM CDT	Special Weather Statement	FWD	Jack	34 min
Aug 15, 8:36 PM CDT	Severe Thunderstorm Warning	FWD	Jack, Palo Pinto, Parker	24 min
Aug 15, 9:00 PM CDT	Special Weather Statement	FWD	Palo Pinto	30 min
Aug 16, 2:35 AM CDT	Special Weather Statement	FWD	Cooke, Grayson, Montague	55 min
Aug 16, 3:39 AM CDT	Special Weather Statement	FWD	Collin, Denton, Wise	51 min
Aug 16, 4:17 AM CDT	Special Weather Statement	FWD	Jack	58 min
Aug 16, 4:31 AM CDT	Special Weather Statement	FWD	Dallas, Rockwall, Tarrant	59 min
Aug 16, 5:32 AM CDT	Special Weather Statement	FWD	Ellis, Johnson, Kaufman	58 min
Aug 16, 5:39 AM CDT	Severe Thunderstorm Warning	FWD	Palo Pinto, Stephens	81 min
Aug 16, 6:07 AM CDT	Special Weather Statement	FWD	Parker	68 min
Aug 16, 6:24 AM CDT	Severe Thunderstorm Warning	FWD	Eastland, Erath	66 min
Aug 16, 6:29 AM CDT	Severe Thunderstorm Warning	FWD	Palo Pinto	31 min
Aug 16, 6:52 AM CDT	Special Weather Statement	FWD	Hood	23 min

Nearby

Severe Thunderstorm Warnings in Texas, 2013 Every severe thunderstorm warning in 2013

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.