Alert archive / Texas / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 1, NWS Austin/San Antonio, TX

February 14, 2003Dimmit County, Maverick County, Zavala County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Feb 14, 2003, 3:11 PM CST for Dimmit County, Maverick County, Zavala County, Texas. It was in force for 64 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
Feb 14, 2003, 3:11 PM CST (21:11 UTC)
Expired
Feb 14, 2003, 4:15 PM CST
In force
64 min
Issued by
NWS Austin/San Antonio, TX
Area
Counties, with a storm outline in the text

Counties Dimmit County, TX, Maverick County, TX, Zavala County, TX

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Feb 14, 2:40 PM CSTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Del Rio, TX (KDRT), launched 12:00Z, 9.2 hours before the alert went out and 104 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 2003-02-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 705 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 2003-02-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -137 square meters per square second.1939587897117Sfc1 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
705 J/kg
Mixed-layer CIN
-82 J/kg
Mixed-layer LCL
877 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
-137 m²/s²
0-3 km storm-relative helicity
-95 m²/s²
Significant tornado parameter
-0.4
Supercell composite
-2.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

476 
WUUS54 KEWX 142111
SVRSAT
TXC127-323-507-142215-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
311 PM CST FRI FEB 14 2003

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR THE FOLLOWING COUNTIES IN TEXAS...
  ZAVALA
  MAVERICK
  DIMMIT

* UNTIL 415 PM CST

* AT 311 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 8 MILES SOUTHWEST OF EL INDIO...MOVING
  NORTHEAST AT 50 MPH.

* THE SEVERE THUNDERSTORM WILL BE...
  NEAR EAGLE PASS AND EL INDIO AT 315 PM
  OVER COMETA AT 340 PM


LAT...LON 2866 10051 2832 10041 2834 9981 2892 10007

$$

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Austin/San Antonio, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Feb 14, 2:48 PM CST, 23 minutes earlier.

Area forecast discussion, Feb 14, 2:48 PM CST, 23 minutes before
SOUTH CENTRAL TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
248 PM CST FRI FEB 14 2003

CONVECTION INCREASING ACROSS NE MEXICO THIS AFTERNOON IN ADVANCE OF
ANOTHER UPPER LEVEL DISTURBANCE THAT IS ASSOCIATED WITH THE BROAD
UPPER TROF.  THIS CONVECTIVE COMPLEX IS MOVING NE TOWARDS THE RIO
GRANDE RIVER.  SPC HAS ISSUED A MESOSCALE DISCUSSION ON THIS
CONVECTIVE COMPLEX.  SUPERCELL DEVELOPMENT IS POSSIBLE WITH LARGE
HAIL THE PRIMARY THREAT AS THESE STORMS MOVE ACROSS THE RIO GRANDE
RIVER BETWEEN DEL RIO AND LAREDO.

ADDITIONAL CONVECTION IS ALSO FIRING IN NORTHERN MEXICO...WEST OF
THE BIG BEND...ALSO ASSOCIATED WITH THE MAIN UPPER TROF.  WILL
CONTINUE THE MENTION OF SVR TSTMS TONIGHT FOR THE ENTIRE CWFA AS
SPC HAS THE CWFA IN SLIGHT RISK.  SHOWERS AND TSTMS WILL END FROM
WEST TO EAST SATURDAY MORNING AS THE MAIN TROF AXIS MOVES EAST OF
THE CWFA SATURDAY AFTERNOON.  A COLD FRONT WILL FOLLOW SATURDAY
AFTERNOON WITH THE PASSAGE OF THE TROF AXIS.

AFTER A STORMY EVENING AND OVERNIGHT THE WX PATTERN WILL BECOME
BENIGN INTO THE LATTER PART OF NEXT WEEK.  SFC HIGH PRESSURE WILL
BUILD SOUTHWARD BEHIND THE FRONT SATURDAY AND SUNDAY WITH FREEZING
TEMPS POSSIBLE MONDAY MORNING FOR THE HILL COUNTRY AND NE SECTIONS
OF SOUTH CENTRAL TEXAS.  THE NEXT CHANCE OF SHOWERS AND
THUNDERSTORMS WILL BE WEDNESDAY AND THUNSDAY IN ADVANCE OF ANOTHER
COLD FRONT.  THIS FRONT WILL CLEAR THE COAST BY FRIDAY.

...SEVERE THUNDERSTORM WATCH #1 HAS JUST BEEN ISSUED FOR SOUTH TEXAS
   UNTIL 8 PM THIS EVENING...

PRELIMS...
AUS 062/071 041/056 028 72000
DRT 060/076 045/064 040 42000
SAT 062/072 043/059 035 62000

.EWX...NONE.

13/18
Hazardous weather outlook, Feb 14, 6:00 AM CST, 9 hours 11 minutes before
TXZ171>173-183>194-202>209-217>225-228-151200-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
600 AM CST FRI FEB 14 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL TEXAS.

.DAY ONE...
SEVERE THUNDERSTORMS PRODUCING LARGE HAIL AND DAMAGING WINDS ARE
POSSIBLE LATE THIS AFTERNOON AND EVENING FROM THE TEXAS HILL
COUNTRY...EAST ACROSS THE AUSTIN SAN ANTONIO CORRIDOR TO NEAR
HIGHWAY 77.

.DAYS TWO THROUGH SEVEN...
NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION MAY BE NEEDED LATER TODAY ACROSS THE CENTRAL AND
EASTERN COUNTIES OF SOUTH CENTRAL TEXAS.

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 14, 4:18 PM CSTSevere Thunderstorm WarningEWXDimmit57 min

Nearby

Severe Thunderstorm Warnings in Texas, 2003Every severe thunderstorm warning in 2003

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.