Alert archive / Texas / Special Weather Statements in 2017

Special Weather Statement, NWS Fort Worth, TX

August 6, 20176 counties in Texas

NWS Fort Worth, TX issued this special weather statement at Aug 6, 2017, 10:10 PM CDT for 6 counties in Texas. It was in force for 65 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, 10:10 PM CDT (03:10 UTC)
Expired: Aug 6, 2017, 11:15 PM CDT
In force: 65 min
Issued by: NWS Fort Worth, TX

Counties Bosque County, TX, Coryell County, TX, Hamilton County, TX, Hill County, TX, Lampasas County, TX, McLennan County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 109 km from the middle of the area, began a volume at 03:14 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, 3.2 hours before the alert went out and 136 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.

781 
WWUS84 KFWD 070310
SPSFWD

Special Weather Statement
National Weather Service Fort Worth TX
1010 PM CDT SUN AUG 6 2017
 
TXZ142>145-156-157-159-070415-
Mills TX-Bosque TX-Coryell TX-Lampasas TX-Hamilton TX-Hill TX-
McLennan TX-
1010 PM CDT SUN AUG 6 2017

...SIGNIFICANT WEATHER ADVISORY FOR HAMILTON...MCLENNAN...CORYELL...
LAMPASAS...BOSQUE...WESTERN HILL AND EASTERN MILLS COUNTIES UNTIL
1115 PM CDT...

At 1009 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Lake Whitney State Park to 7 miles west of
Evant. Movement was southeast at 30 mph.

Wind gusts up to 50 mph will be possible with these storms.

Locations impacted include...
Waco, Copperas Cove, Gatesville, Hewitt, Robinson, Bellmead,
Hillsboro, Woodway, Lampasas, Lacy-Lakeview, McGregor, Clifton,
Hamilton, Fort Hood, West, Whitney, Beverly Hills, Meridian, Valley
Mills and Kempner.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3213 9751 3218 9747 3223 9727 3161 9686
      3108 9789 3103 9818 3103 9843 3159 9850
TIME...MOT...LOC 0309Z 297DEG 25KT 3197 9741 3147 9828 

$$

Carlaw

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 6, 7:00 PM CDT	Severe Thunderstorm Warning	FWD	Tarrant	30 min
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, 10:54 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

Special Weather Statements in Texas, 2017 Every special weather statement 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.