Alert archive / Texas / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 310, NWS Fort Worth, TX

August 6, 2017Tarrant County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Aug 6, 2017, 7:00 PM CDT for Tarrant County, Texas. It was in force for 30 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Aug 6, 2017, 7:00 PM CDT (00:00 UTC)
Expired: Aug 6, 2017, 7:30 PM CDT
In force: 30 min
Issued by: NWS Fort Worth, TX
Area: Storm-based polygon
Hail: 1.0 in
Wind: 65.0 mph

County Tarrant County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 12 km from the middle of the area, began a volume at 00:00 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 00:00Z, 0.0 hours before the alert went out and 23 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: 2574 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 1772 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: -17 m²/s²
0-3 km storm-relative helicity: 80 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.0

Open this sounding in Storm Lab

The text

As transmitted.

915 
WUUS54 KFWD 070000
SVRFWD
TXC439-070030-
/O.NEW.KFWD.SV.W.0310.170807T0000Z-170807T0030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Fort Worth TX
700 PM CDT SUN AUG 6 2017

The National Weather Service in Fort Worth has issued a

* Severe Thunderstorm Warning for...
  Southwestern Tarrant County in north central Texas...

* Until 730 PM CDT.

* At 700 PM CDT, a severe thunderstorm was located near White
  Settlement, moving south at 30 mph.

  HAZARD...65 mph wind gusts and quarter size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees. 

* Locations impacted include...
  Fort Worth, Burleson, Benbrook, White Settlement, Crowley, River
  Oaks, Everman, Sansom Park, Rendon, Edgecliff Village, Westworth
  Village, Edgecliff and Westover Hills.

This includes the following interstates...
 Interstate 35W between mile markers 38 and 46.
 Interstate 20 between mile markers 423 and 437.
 Interstate 30 between mile markers 2 and 13.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection get inside a sturdy structure and stay away from
windows.

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning can kill.

&&

LAT...LON 3255 9724 3255 9755 3276 9755 3281 9739
TIME...MOT...LOC 0000Z 351DEG 24KT 3274 9753 

HAIL...1.00IN
WIND...65MPH
 
$$

Carlaw

The office that day

Everything else NWS Fort Worth, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 6, 7:19 PM CDT	Severe Thunderstorm Warning	FWD	Hood, Johnson, Parker, Somervell, Tarrant	56 min
Aug 6, 7:25 PM CDT	Special Weather Statement	FWD	Eastland, Erath	65 min
Aug 6, 7:42 PM CDT	Areal Flood Advisory	FWD	Parker	3 hr
Aug 6, 8:17 PM CDT	Special Weather Statement	FWD	Comanche, Erath, Hood, Johnson, Somervell	58 min
Aug 6, 8:29 PM CDT	Areal Flood Advisory	FWD	Eastland, Erath, Hood, Palo Pinto	3 hr
Aug 6, 9:18 PM CDT	Areal Flood Advisory	FWD	Bosque, Comanche, Erath, Hamilton, Somervell	3 hr
Aug 6, 9:22 PM CDT	Special Weather Statement	FWD	Bosque, Hamilton, Mills, Somervell	53 min
Aug 6, 9:52 PM CDT	Flash Flood Warning	FWD	Bosque, Somervell	3 hr
Aug 6, 9:58 PM CDT	Areal Flood Advisory	FWD	Bosque, Hamilton	3 hr
Aug 6, 10:10 PM CDT	Special Weather Statement	FWD	Bosque, Coryell, Hamilton, Hill, Lampasas, McLennan	65 min
Aug 6, 10:54 PM CDT	Areal Flood Advisory	FWD	Coryell, Lampasas, Mills	3 hr
Aug 6, 11:28 PM CDT	Areal Flood Advisory	FWD	Cooke, Grayson, Montague	3 hr
Aug 6, 11:35 PM CDT	Special Weather Statement	FWD	Bell	55 min
Aug 7, 12:14 AM CDT	Special Weather Statement	FWD	Milam, Robertson	31 min
Aug 7, 12:44 AM CDT	Areal Flood Advisory	FWD	Bell, Falls, Milam	2 hr
Aug 7, 12:52 AM CDT	Areal Flood Advisory	FWD	Fannin, Grayson	3 hr
Aug 7, 2:23 AM CDT	Areal Flood Advisory	FWD	Lamar	3 hr

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.