Alert archive / Texas / Special Weather Statements in 2021

Special Weather Statement, NWS Fort Worth, TX

July 28, 2021Henderson County, Texas

NWS Fort Worth, TX issued this special weather statement at Jul 28, 2021, 2:08 PM CDT for Henderson County, Texas. It was in force for 37 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: Jul 28, 2021, 2:08 PM CDT (19:08 UTC)
Expired: Jul 28, 2021, 2:45 PM CDT
In force: 37 min
Issued by: NWS Fort Worth, TX

County Henderson County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 132 km from the middle of the area, began a volume at 19:08 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, 7.1 hours before the alert went out and 141 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: 1220 J/kg
Mixed-layer CIN: -87 J/kg
Mixed-layer LCL: 1231 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: -20 m²/s²
0-3 km storm-relative helicity: 33 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

As transmitted.

092 
WWUS84 KFWD 281908
SPSFWD

Special Weather Statement
National Weather Service Fort Worth TX
208 PM CDT Wed Jul 28 2021
 
TXZ135-281945-
Henderson TX-
208 PM CDT Wed Jul 28 2021

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL HENDERSON COUNTY UNTIL
245 PM CDT...

At 207 PM CDT, Doppler radar was tracking a strong thunderstorm over
Athens, moving west at 5 to 10 mph.

Wind gusts between 40 to 50 mph will be possible with this storm.
  
 Locations impacted include...
Athens, Gun Barrel City, Malakoff, Eustace, Caney City, Payne
Springs, Log Cabin and Star Harbor.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also likely occurring with this storm, and 
may lead to localized street flooding. Do not drive your vehicle 
through flooded roadways.

This storm may intensify, so closely monitor for additional 
information or possible warnings from the National Weather Service.

&&

LAT...LON 3209 9606 3236 9605 3236 9604 3231 9579
      3213 9579
TIME...MOT...LOC 1907Z 090DEG 5KT 3223 9588 

$$

05

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 27, 7:00 PM CDT	Special Weather Statement	FWD	Palo Pinto	30 min
Jul 27, 7:21 PM CDT	Special Weather Statement	FWD	Hood	24 min
Jul 27, 7:31 PM CDT	Special Weather Statement	FWD	Stephens	29 min
Jul 27, 7:51 PM CDT	Special Weather Statement	FWD	Collin	39 min
Jul 28, 2:37 PM CDT	Special Weather Statement	FWD	Tarrant	38 min
Jul 28, 2:44 PM CDT	Heat Advisory	FWD	Anderson, Collin, Cooke, Dallas, Delta, Denton and 11 more	28 hr
Jul 28, 2:50 PM CDT	Special Weather Statement	FWD	Smith	40 min
Jul 28, 3:03 PM CDT	Special Weather Statement	FWD	Wise	42 min
Jul 28, 3:26 PM CDT	Special Weather Statement	FWD	Van Zandt	34 min
Jul 28, 3:38 PM CDT	Special Weather Statement	FWD	Henderson	37 min
Jul 28, 3:47 PM CDT	Severe Thunderstorm Warning	FWD	Anderson, Freestone, Henderson, Navarro	43 min
Jul 28, 4:21 PM CDT	Special Weather Statement	FWD	Henderson	24 min
Jul 28, 4:56 PM CDT	Special Weather Statement	FWD	Navarro	34 min
Jul 28, 5:32 PM CDT	Special Weather Statement	FWD	Tarrant	28 min
Jul 28, 5:59 PM CDT	Special Weather Statement	FWD	Tarrant	31 min
Jul 28, 6:18 PM CDT	Areal Flood Advisory	FWD	Anderson, Henderson	72 min
Jul 28, 6:23 PM CDT	Severe Thunderstorm Warning	FWD	Palo Pinto, Parker, Tarrant	23 min

Nearby

Special Weather Statements in Texas, 2021 Every special weather statement in 2021

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.