Alert archive / Texas / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 303, NWS Fort Worth, TX

July 24, 2017Limestone County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Jul 24, 2017, 2:33 PM CDT for Limestone 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: Jul 24, 2017, 2:33 PM CDT (19:33 UTC)
Expired: Jul 24, 2017, 3:11 PM CDT
In force: 38 min
Issued by: NWS Fort Worth, TX
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Limestone County, TX

The radar

The Ft Hood radar (KGRK), 119 km from the middle of the area, began a volume at 19:36 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, 7.6 hours before the alert went out and 158 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: 139 J/kg
Mixed-layer CIN: -276 J/kg
Mixed-layer LCL: 1698 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: 32 m²/s²
0-3 km storm-relative helicity: 49 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 Jul 23, 6:48 PM CDT, 19 hours 45 minutes earlier.

Area forecast discussion, Jul 23, 6:48 PM CDT, 19 hours 45 minutes before

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Hazardous weather outlook, Jul 23, 3:23 PM CDT, 23 hours 10 minutes before

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        The site you requested is temporarily down for maintenance or an unexpected outage.
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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
Jul 23, 7:41 PM CDT	Special Weather Statement	FWD	Anderson	34 min
Jul 23, 7:56 PM CDT	Special Weather Statement	FWD	Fannin, Lamar	64 min
Jul 23, 8:17 PM CDT	Severe Thunderstorm Warning	FWD	Fannin, Grayson, Lamar	58 min
Jul 23, 8:46 PM CDT	Severe Thunderstorm Warning	FWD	Henderson, Kaufman	44 min
Jul 23, 8:56 PM CDT	Severe Thunderstorm Warning	FWD	Collin, Delta, Hopkins, Hunt	64 min
Jul 23, 9:05 PM CDT	Special Weather Statement	FWD	Freestone	25 min
Jul 23, 9:18 PM CDT	Areal Flood Advisory	FWD	Fannin, Grayson	3 hr
Jul 23, 9:21 PM CDT	Special Weather Statement	FWD	Cooke, Denton, Montague, Wise	39 min
Jul 23, 9:44 PM CDT	Special Weather Statement	FWD	Dallas, Kaufman, Rains, Rockwall, Tarrant, Van Zandt	61 min
Jul 23, 10:05 PM CDT	Areal Flood Advisory	FWD	Cooke, Montague	115 min
Jul 23, 10:56 PM CDT	Special Weather Statement	FWD	Tarrant	34 min
Jul 23, 11:11 PM CDT	Areal Flood Advisory	FWD	Denton, Wise	3 hr
Jul 24, 1:22 AM CDT	Areal Flood Advisory	FWD	Tarrant	113 min
Jul 24, 2:14 AM CDT	Areal Flood Advisory	FWD	Denton, Wise	3 hr
Jul 24, 9:25 AM CDT	Areal Flood Advisory	FWD	Anderson	3 hr
Jul 24, 2:19 PM CDT	Areal Flood Advisory	FWD	Freestone, Limestone	116 min
Jul 24, 2:22 PM CDT	Special Weather Statement	FWD	Limestone	23 min
Jul 24, 2:59 PM CDT	Special Weather Statement	FWD	Stephens	31 min
Jul 24, 3:14 PM CDT	Heat Advisory	FWD	Anderson, Bell, Bosque, Collin, Cooke, Coryell and 30 more	4 days
Jul 24, 3:39 PM CDT	Special Weather Statement	FWD	Milam	36 min
Jul 24, 3:52 PM CDT	Areal Flood Advisory	FWD	Falls, Milam, Robertson	113 min
Jul 24, 6:42 PM CDT	Special Weather Statement	FWD	Comanche	33 min

Nearby

Severe Thunderstorm Warnings in Texas, 2017 Every severe thunderstorm warning in 2017

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.