Alert archive / Texas / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 100, NWS Fort Worth, TX

May 9, 2013Anderson County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at May 9, 2013, 6:32 PM CDT for Anderson 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: May 9, 2013, 6:32 PM CDT (23:32 UTC)
Expired: May 9, 2013, 7:30 PM CDT
In force: 58 min
Issued by: NWS Fort Worth, TX
Area: Storm-based polygon

County Anderson County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 177 km from the middle of the area, began a volume at 23:35 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 9, 11:52 AM CDT	Severe Thunderstorm Watch	SPC	9 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 12:00Z, 11.5 hours before the alert went out and 191 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: 474 J/kg
Mixed-layer CIN: -390 J/kg
Mixed-layer LCL: 797 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 229 m²/s²
0-3 km storm-relative helicity: 228 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 May 9, 3:39 PM CDT, 2 hours 53 minutes earlier.

Area forecast discussion, May 9, 3:39 PM CDT, 2 hours 53 minutes before

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Hazardous weather outlook, May 9, 3:45 PM CDT, 2 hours 47 minutes before

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In the hours before

Local storm report, May 9, 2:41 PM CDT, 3 hours 51 minutes before

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Local storm report, May 9, 2:43 PM CDT, 3 hours 49 minutes before

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Local storm report, May 9, 3:24 PM CDT, 3 hours 8 minutes before

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Special weather statement, May 9, 5:14 PM CDT, 1 hour 18 minutes before

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Special weather statement, May 9, 6:01 PM CDT, 31 minutes before

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Special weather statement, May 9, 6:25 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
May 9, 10:35 AM CDT	Special Weather Statement	FWD	Hamilton	25 min
May 9, 11:04 AM CDT	Special Weather Statement	FWD	Mills	26 min
May 9, 11:15 AM CDT	Special Weather Statement	FWD	Fannin	30 min
May 9, 11:29 AM CDT	Special Weather Statement	FWD	Hamilton	31 min
May 9, 11:36 AM CDT	Severe Thunderstorm Warning	FWD	Hamilton	39 min
May 9, 11:40 AM CDT	Special Weather Statement	FWD	Mills	35 min
May 9, 12:14 PM CDT	Severe Thunderstorm Warning	FWD	Bosque, Hamilton	61 min
May 9, 12:33 PM CDT	Special Weather Statement	FWD	Hamilton	27 min
May 9, 12:49 PM CDT	Severe Thunderstorm Warning	FWD	Coryell, Hamilton	56 min
May 9, 1:22 PM CDT	Special Weather Statement	FWD	Hill	23 min
May 9, 1:29 PM CDT	Special Weather Statement	FWD	Lamar	31 min
May 9, 1:42 PM CDT	Severe Thunderstorm Warning	FWD	Bell, Coryell, McLennan	63 min
May 9, 2:07 PM CDT	Special Weather Statement	FWD	Lamar	23 min
May 9, 2:29 PM CDT	Severe Thunderstorm Warning	FWD	Bell, Falls, Milam	61 min
May 9, 2:56 PM CDT	Areal Flood Advisory	FWD	Bell	109 min
May 9, 3:16 PM CDT	Severe Thunderstorm Warning	FWD	Falls, Milam, Robertson	59 min
May 9, 4:08 PM CDT	Areal Flood Advisory	FWD	Milam, Robertson	3 hr
May 9, 4:08 PM CDT	Severe Thunderstorm Warning	FWD	Leon	52 min
May 9, 5:14 PM CDT	Special Weather Statement	FWD	Leon	31 min
May 9, 6:01 PM CDT	Special Weather Statement	FWD	Anderson	29 min
May 9, 6:11 PM CDT	Flash Flood Warning	FWD	Anderson, Henderson	3 hr
May 9, 6:25 PM CDT	Special Weather Statement	FWD	Anderson	35 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.