Alert archive / Texas / Special Weather Statements in 2021

Special Weather Statement, NWS Brownsville, TX

October 15, 2021Jim Hogg County, Texas

NWS Brownsville, TX issued this special weather statement at Oct 15, 2021, 3:18 PM CDT for Jim Hogg County, Texas. It was in force for 42 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
Oct 15, 2021, 3:18 PM CDT (20:18 UTC)
Expired
Oct 15, 2021, 4:00 PM CDT
In force
42 min
Issued by
NWS Brownsville, TX
Hail
0.25 in
Wind
30

County Jim Hogg County, TX

The radar

The Corpus Christi radar (KCRP), 132 km from the middle of the area, began a volume at 20:19 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, 8.3 hours before the alert went out and 144 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 2021-10-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2150 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Corpus Christi, TX at 12:00Z on 2021-10-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -11 square meters per square second.193958Sfc1 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
2150 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
667 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
-11 m²/s²
0-3 km storm-relative helicity
10 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.9

Open this sounding in Storm Lab

The text

As transmitted.

840 
WWUS84 KBRO 152018
SPSBRO

Special Weather Statement
National Weather Service Brownsville TX
318 PM CDT Fri Oct 15 2021
 
TXZ249-152100-
Jim Hogg TX-
318 PM CDT Fri Oct 15 2021

...A strong thunderstorm will impact portions of central Jim Hogg and
northwestern Brooks Counties through 400 PM CDT...

At 318 PM CDT, Doppler radar was tracking a strong thunderstorm near
Randado, or 14 miles southwest of Hebbronville, moving east at 15
mph.

HAZARD...Winds in excess of 30 mph and pea size 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...
Randado.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

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

&&

LAT...LON 2720 9849 2719 9849 2689 9856 2704 9889
      2723 9883
TIME...MOT...LOC 2018Z 284DEG 11KT 2713 9878 

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...30 MPH

$$

Farris

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 15, 11:07 AM CDTGale WarningBRO23 hr
Oct 15, 1:03 PM CDTWind AdvisoryBROKenedy21 hr
Oct 15, 2:36 PM CDTSpecial Weather StatementBROJim Hogg39 min
Oct 15, 6:19 PM CDTSpecial Weather StatementBROHidalgo41 min
Oct 15, 6:49 PM CDTSpecial Weather StatementBROHidalgo26 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.