Alert archive / Texas / Special Weather Statements in 2021

Special Weather Statement, NWS Austin/San Antonio, TX

July 5, 2021Val Verde County, Texas

NWS Austin/San Antonio, TX issued this special weather statement at Jul 5, 2021, 2:13 PM CDT for Val Verde County, Texas. It was in force for 47 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 5, 2021, 2:13 PM CDT (19:13 UTC)
Expired
Jul 5, 2021, 3:00 PM CDT
In force
47 min
Issued by
NWS Austin/San Antonio, TX

County Val Verde County, TX

The radar

The Laughlin AFB radar (KDFX), 108 km from the middle of the area, began a volume at 19:15 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

Del Rio, TX (KDRT), launched 12:00Z, 7.2 hours before the alert went out and 80 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, Del Rio, TX at 12:00Z on 2021-07-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1872 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, Del Rio, TX at 12:00Z on 2021-07-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 44 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
1872 J/kg
Mixed-layer CIN
-67 J/kg
Mixed-layer LCL
643 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
44 m²/s²
0-3 km storm-relative helicity
94 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.4

Open this sounding in Storm Lab

The text

As transmitted.

664 
WWUS84 KEWX 051913
SPSEWX

Special Weather Statement
National Weather Service Austin/San Antonio TX
213 PM CDT Mon Jul 5 2021
 
TXZ183-184-052000-
Val Verde TX-Edwards TX-
213 PM CDT Mon Jul 5 2021

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN EDWARDS AND
NORTHEASTERN VAL VERDE COUNTIES UNTIL 300 PM CDT...

At 213 PM CDT, Doppler radar was tracking a strong thunderstorm 12
miles north of Loma Alta, moving south at 15 mph.

Winds in excess of 40 mph will be possible with this storm.

Locations impacted include...
Loma Alta, Carta Valley, Vinegarone, Devils River State Nat Area Del
Norte and Us-277 Near The Sutton-Edwards County Line.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3029 10110 3029 10058 2979 10052 2980 10110
TIME...MOT...LOC 1913Z 007DEG 13KT 3010 10080 

$$

KCW

The office that day

Everything else NWS Austin/San Antonio, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 5, 8:37 AM CDTAreal Flood AdvisoryEWXEdwards, Kerr, Real3 hr
Jul 5, 12:59 PM CDTAreal Flood AdvisoryEWXEdwards3 hr
Jul 5, 1:57 PM CDTSpecial Weather StatementEWXKinney63 min
Jul 5, 2:22 PM CDTAreal Flood AdvisoryEWXEdwards, Val Verde3 hr
Jul 5, 2:58 PM CDTAreal Flood AdvisoryEWXTravis3 hr
Jul 5, 3:54 PM CDTAreal Flood AdvisoryEWXBlanco, Comal, Hays3 hr
Jul 5, 4:02 PM CDTAreal Flood AdvisoryEWXComal, Guadalupe3 hr
Jul 5, 4:06 PM CDTAreal Flood AdvisoryEWXVal Verde3 hr
Jul 5, 4:31 PM CDTAreal Flood AdvisoryEWXGillespie, Kerr3 hr
Jul 5, 4:52 PM CDTSpecial Weather StatementEWXKinney53 min
Jul 5, 5:02 PM CDTAreal Flood AdvisoryEWXBandera, Bexar, Comal, Kendall3 hr
Jul 5, 5:16 PM CDTFlash Flood Warning Considerable damage threatEWXGillespie, Kerr3 hr
Jul 5, 5:54 PM CDTFlash Flood Warning Considerable damage threatEWXBexar3 hr
Jul 5, 6:16 PM CDTAreal Flood AdvisoryEWXBandera, Bexar, Medina3 hr

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.