Alert archive / Texas / Special Weather Statements in 2021

Special Weather Statement, NWS Brownsville, TX

August 3, 2021Zapata County, Texas

NWS Brownsville, TX issued this special weather statement at Aug 3, 2021, 1:30 AM CDT for Zapata County, Texas. It was in force for 45 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 3, 2021, 1:30 AM CDT (06:30 UTC)
Expired: Aug 3, 2021, 2:15 AM CDT
In force: 45 min
Issued by: NWS Brownsville, TX

County Zapata County, TX

The radar

The Corpus Christi radar (KCRP), 200 km from the middle of the area, began a volume at 06:30 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

Corpus Christi, TX (KCRP), launched 00:00Z, 6.5 hours before the alert went out and 214 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: 2590 J/kg
Mixed-layer CIN: -28 J/kg
Mixed-layer LCL: 1057 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 10 m²/s²
0-3 km storm-relative helicity: 30 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

856 
WWUS84 KBRO 030630
SPSBRO

Special Weather Statement
National Weather Service Brownsville TX
130 AM CDT Tue Aug 3 2021
 
TXZ248-030715-
Zapata TX-
130 AM CDT Tue Aug 3 2021

...SPECIAL WEATHER STATEMENT...

At 129 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 13 miles west of Thompsonville to near Las
Palmas. Movement was northeast at 10 mph.

Winds in excess of 30 mph will be possible with these storms.

Locations impacted include...
Zapata, Bustamante, Medina, Zapata High School, Zapata County Fire
Department, Zapata Middle School, Siesta Shores, Zapata County Public
Library, Las Palmas and Falcon Mesa.

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.

Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 2709 9943 2711 9944 2713 9943 2718 9943
      2727 9945 2732 9937 2727 9933 2727 9896
      2675 9924 2679 9924 2685 9927 2687 9932
      2692 9932 2693 9938 2696 9939 2698 9938
      2702 9942 2701 9943 2702 9945 2706 9945
TIME...MOT...LOC 0629Z 236DEG 8KT 2725 9915 2700 9932 

$$

Hallman

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 2, 11:03 PM CDT	Areal Flood Advisory	BRO	Starr	86 min
Aug 2, 11:19 PM CDT	Special Weather Statement	BRO	Starr	41 min
Aug 3, 1:02 AM CDT	Areal Flood Advisory	BRO	Hidalgo, Starr	103 min
Aug 3, 1:45 AM CDT	Special Weather Statement	BRO	Hidalgo	45 min
Aug 3, 2:14 AM CDT	Special Weather Statement	BRO	Zapata	46 min
Aug 3, 2:16 AM CDT	Areal Flood Advisory	BRO	Zapata	4 hr
Aug 3, 2:22 AM CDT	Areal Flood Advisory	BRO	Hidalgo	73 min
Aug 3, 2:29 AM CDT	Special Weather Statement	BRO	Hidalgo	31 min
Aug 3, 2:59 AM CDT	Special Weather Statement	BRO	Zapata	46 min
Aug 3, 3:17 AM CDT	Flash Flood Warning	BRO	Zapata	105 min
Aug 3, 3:20 AM CDT	Areal Flood Advisory	BRO	Zapata	3 hr
Aug 3, 3:44 AM CDT	Special Weather Statement	BRO	Zapata	31 min
Aug 3, 4:20 AM CDT	Flash Flood Warning	BRO	Zapata	44 min
Aug 3, 4:30 AM CDT	Special Weather Statement	BRO	Zapata	30 min
Aug 3, 5:47 AM CDT	Special Weather Statement	BRO	Starr	43 min
Aug 3, 6:12 AM CDT	Areal Flood Advisory	BRO	Starr	2 hr
Aug 3, 6:13 AM CDT	Areal Flood Advisory	BRO	Hidalgo	2 hr
Aug 3, 2:05 PM CDT	Special Weather Statement	BRO	Starr	55 min
Aug 3, 4:33 PM CDT	Areal Flood Advisory	BRO	Brooks, Kenedy	57 min
Aug 3, 4:37 PM CDT	Special Weather Statement	BRO	Brooks	38 min
Aug 3, 4:43 PM CDT	Special Weather Statement	BRO	Kenedy	47 min
Aug 3, 5:15 PM CDT	Special Weather Statement	BRO	Jim Hogg	45 min
Aug 3, 6:14 PM CDT	Areal Flood Advisory	BRO	Cameron, Hidalgo	61 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.