Alert archive / Texas / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 32, NWS Austin/San Antonio, TX

April 7, 2003Kinney County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Apr 7, 2003, 11:23 PM CDT for Kinney County, Texas. It was in force for 52 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
Apr 7, 2003, 11:23 PM CDT (04:23 UTC)
Expired
Apr 8, 2003, 12:15 AM CDT
In force
52 min
Issued by
NWS Austin/San Antonio, TX
Area
Counties, with a storm outline in the text

County Kinney 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
Apr 7, 9:45 PM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 4.4 hours before the alert went out and 21 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 00:00Z on 2003-04-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1447 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 00:00Z on 2003-04-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -35 square meters per square second.1939587897Sfc1 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
1447 J/kg
Mixed-layer CIN
-28 J/kg
Mixed-layer LCL
1863 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
-35 m²/s²
0-3 km storm-relative helicity
20 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.7

Open this sounding in Storm Lab

The text

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

234 
WUUS54 KEWX 080423
SVRSAT
TXC271-080515-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1124 PM CDT MON APR 7 2003

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR THE FOLLOWING COUNTIES IN TEXAS...
  KINNEY

* UNTIL 1215 AM CDT

* AT 1124 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 24 MILES WEST OF SPOFFORD...OR ABOUT 12 MILES
  SOUTHEAST OF DEL RIO...MOVING NORTHEAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE...
  NEAR BRACKETTVILLE AT 1215 AM

VERY LARGE HAIL IS POSSIBLE WITH THIS SEVERE THUNDERSTORM. IF YOU ARE
IN THE PATH OF THE STORM...PUT YOUR CAR IN A GARAGE AND MOVE TO A
SUBSTANTIAL SHELTER.


LAT...LON 2924 10079 2927 10073 2931 10075 2936 10070
          2945 10043 2910 10039 2912 10072 2917 10078

$$

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 Apr 7, 9:30 PM CDT, 1 hour 53 minutes earlier.

Area forecast discussion, Apr 7, 9:30 PM CDT, 1 hour 53 minutes before
SOUTH CENTRAL TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
930 PM CDT MON APR 7 2003

CURRENT WEATHER ANALYSIS...TRENDS AND OUTLOOK...
SURFACE ANALYSIS HAS COLD FRONT MOVING SLOWLY SOUTHWARD ACROSS THE
HILL COUNTRY INTO THE EXTREME EASTERN COUNTIES OF SOUTH CENTRAL TEXAS
NEAR AUSTIN. THUNDERSTORM ACTIVITY DEVELOPING AHEAD OF THE FRONT.
LOOK FOR THE THUNDERSTORMS ACTIVITY TO CONTINUE THROUGH THE NIGHT.

CURRENT THUNDERSTORM WATCH WILL EXPIRE AT 10 PM.
A NEW WATCH WILL BE ISSUED FOR THE SOUTH AND SOUTHWESTERN COUNTIES
AND EXTEND TO 3 AM. THE FORECAST IS GOOD FOR TONIGHT AND WILL BE
UPDATED ONLY TO CHANGE THE WATCH ZONE GROUPINGS.

PREVIOUS DISCUSSION...
THUNDERSTORMS TRYING TO DEVELOP OVER EXTREME SE ZONES SPARKED BY
SURFACE TROUGH NEAR COAST.  HOLDING TO THE GOING SCENARIO WITH SEVERE
POSSIBLE THROUGH THE EVENING.  EXPECT SEVERE THREAT TO END WITH FRONT
STARTING TO MOVE IN AROUND MIDNIGHT AND SWEEPING THROUGH OVERNIGHT.
SOME ELEVATED CONVECTION AND OVERRUNNING RAIN IN STORE FOR THE LATE
NIGHT HOURS THROUGH TUESDAY MORNING WITH CLEARING TO FOLLOW TUESDAY
AFTERNOON.  WINDS WILL PICK UP RAPIDLY WITH FRONT AND BY MORNING
ZONE TIME SHOULD BE CLOSE TO WIND ADVISORY CRITERIA.  WILL GO WITH
CAUTION ON AREA LAKES AFTER MIDNIGHT WITH LATER SHIFTS NEEDING TO
ISSUE WIND ADVISORY FOR TUESDAY MORNING.  WINDS SHOULD EASE DURING
THE AFTERNOON.  NOT LOOKING FOR THIS SYSTEM TO BE A MAJOR RAIN
PRODUCER...ALTHOUGH A FEW SLOW MOVING CELLS WILL PRODUCE LOCALLY
HEAVY AMOUNTS.   QUITE CHILLY TUESDAY NIGHT AND AGAIN WEDNESDAY
NIGHT.  SLOW WARMING LATE WEEK WITH DRY WEATHER PREVAILING WITH
STRONG UPPER RIDGE.  GULF REOPENS EARLY NEXT WEEK WITH CLOUDS
INCREASING MONDAY.

.EWX...NONE.
Hazardous weather outlook, Apr 7, 5:00 PM CDT, 6 hours 23 minutes before
TXZ171>173-183>194-202>209-217>225-228-081100-

HAZARDOUS WEATHER OUTLOOK...UPDATE
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
500 PM CDT MON APR 7 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL TEXAS.

.DAY ONE...
LATE THIS AFTERNOON THROUGH TONIGHT...THERE IS A SLIGHT RISK OF
SEVERE THUNDERSTORMS ACROSS ALL OF SOUTH CENTRAL TEXAS.

AN UPPER-LEVEL STORM SYSTEM AND ASSOCIATED COLD FRONT WILL MOVE
SOUTHEAST ACROSS SOUTH CENTRAL TEXAS LATE THIS AFTERNOON THROUGH
TONIGHT. THE FRONT WILL INTERACT WITH ABUNDANT LOW LEVEL MOISTURE TO
PRODUCE SCATTERED TO NUMEROUS THUNDERSTORMS MOVING SLOWLY EAST AND
SOUTHEAST ACROSS THE AREA.

WITH MODERATE SHEAR AND INSTABILITY...THE PRIMARY WEATHER THREATS
WILL BE FOR LARGE HAIL...DAMAGING WINDS...ISOLATED TORNADOES...AND
LOCALLY HEAVY RAINFALL AMOUNTS UP TO TWO INCHES. THE STORMS WILL
LIKELY BEGIN OVER THE HILL COUNTRY LATE THIS AFTERNOON WITH THE
FOCUS SHIFTING SOUTH OF SOUTH CENTRAL TEXAS SHORTLY AFTER MIDNIGHT.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION MAY BE REQUIRED.

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

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 7, 8:38 PM CDTSevere Thunderstorm WarningEWXEdwards, Kinney52 min
Apr 7, 11:25 PM CDTSevere Thunderstorm WarningEWXUvalde50 min
Apr 7, 11:34 PM CDTSevere Thunderstorm WarningEWXVal Verde26 min
Apr 8, 12:19 AM CDTSevere Thunderstorm WarningEWXMaverick56 min
Apr 8, 1:16 AM CDTSevere Thunderstorm WarningEWXMaverick, Zavala59 min
Apr 8, 1:52 AM CDTSevere Thunderstorm WarningEWXDimmit53 min
Apr 8, 2:47 AM CDTSevere Thunderstorm WarningEWXDimmit28 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.