Alert archive / Texas / Special Weather Statements in 2021

Special Weather Statement, NWS Brownsville, TX

August 5, 2021Jim Hogg County, Texas

NWS Brownsville, TX issued this special weather statement at Aug 5, 2021, 5:06 PM CDT for Jim Hogg County, Texas. It was in force for 24 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 5, 2021, 5:06 PM CDT (22:06 UTC)
Expired
Aug 5, 2021, 5:30 PM CDT
In force
24 min
Issued by
NWS Brownsville, TX
Hail
0.50 in
Wind
30

County Jim Hogg County, TX

The radar

The Corpus Christi radar (KCRP), 145 km from the middle of the area, began a volume at 22:08 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

Corpus Christi, TX (KCRP), launched 12:00Z, 10.1 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-pSkew-T log-p diagram, Corpus Christi, TX at 12:00Z on 2021-08-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1826 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Corpus Christi, TX at 12:00Z on 2021-08-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -10 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
1826 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
819 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
-10 m²/s²
0-3 km storm-relative helicity
-6 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

018 
WWUS84 KBRO 052206
SPSBRO

Special Weather Statement
National Weather Service Brownsville TX
506 PM CDT Thu Aug 5 2021
 
TXZ248-249-052230-
Jim Hogg TX-Zapata TX-
506 PM CDT Thu Aug 5 2021

...A strong thunderstorm will impact portions of northwestern Jim
Hogg and northeastern Zapata Counties through 530 PM CDT...

At 505 PM CDT, Doppler radar was tracking a strong thunderstorm near
Thompsonville, or 13 miles southwest of Hebbronville, moving north at
5 mph.

HAZARD...Winds in excess of 30 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around 
         unsecured objects. Minor damage to outdoor objects is 
         possible.

Locations impacted include...
Hebbronville, Jim Hogg County Airport, South Fork Estates, Randado
and Thompsonville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

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

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

&&

LAT...LON 2705 9871 2690 9901 2727 9900 2727 9880
      2735 9880 2736 9868
TIME...MOT...LOC 2205Z 164DEG 6KT 2719 9885 

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...30 MPH

$$

Mejia

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 5, 3:09 PM CDTSpecial Weather StatementBROKenedy36 min
Aug 5, 3:43 PM CDTSpecial Weather StatementBROWillacy32 min
Aug 5, 5:00 PM CDTSpecial Weather StatementBROWillacy30 min
Aug 5, 5:02 PM CDTSpecial Weather StatementBROBrooks28 min
Aug 5, 5:22 PM CDTAreal Flood AdvisoryBROJim Hogg, Zapata68 min
Aug 5, 5:26 PM CDTSpecial Weather StatementBROHidalgo34 min
Aug 5, 5:46 PM CDTSpecial Weather StatementBROStarr29 min

Nearby

Special Weather Statements in Texas, 2021Every 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.