Alert archive / Texas / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 3, NWS Fort Worth, TX

January 29, 2013Comanche County, Eastland County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Jan 29, 2013, 12:37 PM CST for Comanche County, Eastland County, Texas. It was in force for 38 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: Jan 29, 2013, 12:37 PM CST (18:37 UTC)
Expired: Jan 29, 2013, 1:15 PM CST
In force: 38 min
Issued by: NWS Fort Worth, TX
Area: Storm-based polygon

Counties Comanche County, TX, Eastland County, TX

The radar

The Dyess AFB radar (KDYX), 69 km from the middle of the area, began a volume at 18:39 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
Jan 29, 11:28 AM CST	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 12:00Z, 6.6 hours before the alert went out and 153 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: 965 J/kg
Mixed-layer CIN: -50 J/kg
Mixed-layer LCL: 544 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 401 m²/s²
0-3 km storm-relative helicity: 413 m²/s²
Significant tornado parameter: 2.4
Supercell composite: 10.6

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 Jan 29, 11:45 AM CST, 52 minutes earlier.

Area forecast discussion, Jan 29, 11:45 AM CST, 52 minutes before

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Hazardous weather outlook, Jan 29, 12:09 PM CST, 28 minutes before

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In the hours before

Special weather statement, Jan 29, 11:03 AM CST, 1 hour 34 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
1103 AM CST TUE JAN 29 2013

TXZ115-291730-
STEPHENS TX-
1103 AM CST TUE JAN 29 2013

...SIGNIFICANT WEATHER ADVISORY FOR...
  WESTERN STEPHENS COUNTY

AT 1103 AM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 15 MILES SOUTHWEST OF BRECKENRIDGE...MOVING
NORTHEAST AT 20 MPH.

VERY HEAVY RAIN AND WIND GUSTS TO 50 MPH ARE LIKELY WITH THIS STORM.

LAT...LON 3257 9910 3273 9910 3285 9889 3252 9885
      3252 9910 3252 9911 3257 9911
TIME...MOT...LOC 1703Z 241DEG 17KT 3263 9909

HAMPSHIRE

Local storm report, Jan 29, 11:39 AM CST, 58 minutes before

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Special weather statement, Jan 29, 12:00 PM CST, 37 minutes before

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Special weather statement, Jan 29, 12:28 PM CST, 9 minutes before

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Special weather statement, Jan 29, 12:32 PM CST, 5 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
Jan 29, 3:25 AM CST	Wind Advisory	FWD	Bell, Bosque, Comanche, Cooke, Coryell, Denton and 18 more	15 hr
Jan 29, 3:40 AM CST	Red Flag Warning	FWD	Comanche, Eastland, Erath, Hamilton, Hood, Jack and 8 more	15 hr
Jan 29, 11:03 AM CST	Special Weather Statement	FWD	Stephens	27 min
Jan 29, 11:16 AM CST	Severe Thunderstorm Warning	FWD	Stephens, Young	59 min
Jan 29, 11:35 AM CST	Severe Thunderstorm Warning	FWD	Jack	40 min
Jan 29, 12:00 PM CST	Special Weather Statement	FWD	Montague	30 min
Jan 29, 12:28 PM CST	Special Weather Statement	FWD	Comanche	32 min
Jan 29, 12:32 PM CST	Special Weather Statement	FWD	Comanche	28 min
Jan 29, 12:45 PM CST	Special Weather Statement	FWD	Jack	30 min
Jan 29, 1:06 PM CST	Special Weather Statement	FWD	Palo Pinto	24 min
Jan 29, 1:09 PM CST	Special Weather Statement	FWD	Comanche, Erath	36 min
Jan 29, 1:15 PM CST	Severe Thunderstorm Warning	FWD	Erath, Palo Pinto, Parker	30 min
Jan 29, 1:33 PM CST	Special Weather Statement	FWD	Wise	27 min
Jan 29, 1:37 PM CST	Severe Thunderstorm Warning	FWD	Parker, Wise	23 min
Jan 29, 1:44 PM CST	Severe Thunderstorm Warning	FWD	Palo Pinto, Parker	31 min
Jan 29, 1:56 PM CST	Severe Thunderstorm Warning	FWD	Denton, Parker, Wise	49 min
Jan 29, 2:22 PM CST	Special Weather Statement	FWD	Hood	23 min
Jan 29, 2:27 PM CST	Special Weather Statement	FWD	Somervell	33 min
Jan 29, 3:34 PM CST	Special Weather Statement	FWD	Dallas	26 min
Jan 29, 3:59 PM CST	Special Weather Statement	FWD	Collin	31 min
Jan 29, 4:23 PM CST	Special Weather Statement	FWD	Fannin	37 min
Jan 29, 5:31 PM CST	Special Weather Statement	FWD	Rains	29 min
Jan 29, 5:33 PM CST	Special Weather Statement	FWD	Falls, Freestone, Limestone	27 min
Jan 29, 5:36 PM CST	Severe Thunderstorm Warning	FWD	Hopkins, Rains	39 min
Jan 29, 5:39 PM CST	Severe Thunderstorm Warning	FWD	Falls, Freestone, Limestone, Navarro	51 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.