Alert archive / Texas / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 113, NWS San Angelo, TX

May 25, 2003Tom Green County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at May 25, 2003, 8:08 PM CDT for Tom Green 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
May 25, 2003, 8:08 PM CDT (01:08 UTC)
Expired
May 25, 2003, 9:00 PM CDT
In force
52 min
Issued by
NWS San Angelo, TX
Area
Counties, with a storm outline in the text

County Tom Green 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 nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 1.1 hours before the alert went out and 242 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 2003-05-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2132 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, Del Rio, TX at 00:00Z on 2003-05-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 15 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
2132 J/kg
Mixed-layer CIN
-71 J/kg
Mixed-layer LCL
1625 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
15 m²/s²
0-3 km storm-relative helicity
81 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.4

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KSJT 260108
SVRSJT
TXC451-260200-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SAN ANGELO TX
807 PM CDT SUN MAY 25 2003

THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  TOM GREEN COUNTY IN SOUTHWEST TEXAS

* UNTIL 900 PM CDT

* AT 801 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 2 MILES SOUTHWEST OF HARRIET...OR ABOUT 8 MILES
  NORTHEAST OF SAN ANGELO...MOVING NORTHWEST AT 5 MPH.

HAIL UP TO THE SIZE OF NICKELS CAN BE EXPECTED WITH THIS STORM. FOR 
YOUR PROTECTION...MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF 
YOUR HOME OR BUSINESS.

LAT...LON 3145 10036 3149 10026 3157 10032 3154 10040

$$

17

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 San Angelo, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at May 25, 2:00 PM CDT, 6 hours 8 minutes earlier.

Area forecast discussion, May 25, 2:00 PM CDT, 6 hours 8 minutes before
WEST CENTRAL TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN ANGELO TX
200 PM CDT SUN MAY 25 2003

TONIGHT...
MODELS HAVING TROUBLE WITH SFC FEATURES AND APPROACHING UPPER TROF.
AN OUTFLOW BOUNDARY STRADDLED I20 ACROSS THE BIG COUNTRY.   THE
AIRMASS SOUTH OF THIS BOUNDARY HAS CONTINUED TO SLOWLY DESTABILIZE.
THE SFC BASED CAPES WERE RISING INTO THE 1000 TO 1500 J/KG RANGE.
ALSO...AN AREA OF DIFFLUENCE WAS MOVING INTO THE BIG BEND AREA AND
WILL LIKELY MOVE ACROSS THE CONCHO ALLEY LATER TONIGHT.  SPC MESO
ANALYSIS SHOWS THIS DIVERGENCE AT 3H.  AT THE SFC...A WEAK SFC TROF
APPEARS TO REFLECT THIS DIFFLUENCE/DIVERGENCE EXTENDING FROM BWD TO
SJT TO FST TO A SFC LOW BETWEEN ELP AND MAF.  EXPECT THE UPPER TROF
TO CONTINUE TO UNDERCUT THE UPPER RIDGE AS IT MOVES ESE.
EXPECT...CONVECTION DEVELOPING TO OUR WEST TO GRADUALLY SPREAD EAST
TONIGHT AS A MESOSCALE CONVECTIVE SYSTEM.  ALSO...ANY CONVECTION
THAT DEVELOPS ALONG FRONT/OUTFLOW BOUNDARY WILL MOVE SOUTH.  AS
UPPER TROF APPROACHES SHOULD SEE BETTER LOW LEVEL JET.  WENT W/60
POPS FOR MUCH OF WC TX TONIGHT...AND WILL ADD MENTION OF LOCALLY
HEAVY RAINFALL BECAUSE OF SLOW STORM MOVEMENT.

MEMORIAL DAY THROUGH WEDNESDAY...
EXPECT FRONT TO SAG A LITTLE FURTHER SOUTH AND GO STATIONARY.
AS IT DOES...MODELS PROG AN AREA OF DIFFLUENCE ALONG THE STATIONARY
FRONT ACROSS THE TRANS PECOS REGION.  THIS COULD GIVE US ADDITIONAL
CHANCES OF RAINFALL.  THINGS SHOULD BEGIN DRYING OUT ON
WEDNESDAY...ALTHOUGH CANT RULE OUT SOME ISOLATED TSTORMS SINCE WE
CONTINUE TO BE IN NW FLOW ALOFT.

THURSDAY THROUGH SATURDAY...
UPPER HIGH IS PROGGED BY ALL LONG RANGE MODELS TO BUILD INTO WC TX
AND SHOULD HELP TO DRY US OUT.

SUNDAY...
WENT AHEAD AND INSERTED A LOW POP AS MODELS PROG A WEAK UPPER TROF
INTO WC TX.  ALSO...LEE SIDE TROFING DEVELOPS BENEATH STRONGER ZONAL
FLOW ACROSS THE CENTRAL ROCKIES.  COULD MEAN THE RETURN OF THE
DRYLINE.

CCF PRELIMS...

ABI 057/076/058/079 6322
SJT 061/078/060/081 6433
JCT 062/083/063/082 6433

.SJT...NONE.

GUERRERO/WRIGHT/BACKER
Hazardous weather outlook, May 25, 2:30 PM CDT, 5 hours 38 minutes before
TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-140-
154-155-168>170-261930-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN ANGELO TX
230 PM CDT SUN MAY 25 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WEST CENTRAL TEXAS.

.DAY ONE...

A SLIGHT RISK OF SEVERE WEATHER EXISTS THROUGH TONIGHT FOR AREAS
SOUTH OF THE BIG COUNTRY. A COMPLEX OF STORMS IS DEVELOPING ACROSS
FAR WEST TEXAS AND INTO EASTERN NEW MEXICO THIS AFTERNOON IN
ASSOCIATION WITH AN UPPER LEVEL LOW PRESSURE SYSTEM NOW ENTERING FAR
WEST TEXAS. AS THIS COMPLEX OF STORMS APPROACHES OUR CWA LATER THIS
EVENING AND OVERNIGHT... A FEW OF STORMS COULD REACH SEVERE LIMITS
WITH DAMAGING WINDS AND LARGE HAIL THE MAIN CONCERN.

.DAYS TWO THROUGH SEVEN...

WITH A FRONT MOVING THROUGH AND THEN STALLING OUT ACROSS WEST
CENTRAL TEXAS...THERE WILL BE A SLIGHT RISK OF SEVERE WEATHER ON
SUNDAY AND MONDAY. OTHERWISE...A SLIGHT CHANCE OF STORMS WILL
CONTINUE THROUGH THE WEEK.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NECESSARY TONIGHT.

15

In the hours before

Special weather statement, May 25, 3:20 PM CDT, 4 hours 48 minutes before
TXZ154-155-170-022040-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
320 PM CDT SUN MAY 25 2003

...THE SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR THE
FOLLOWING COUNTIES IN WEST CENTRAL TEXAS...

MCCULLOCH...SAN SABA AND MASON.

THE SYSTEM WHICH PROMPTED THE WATCH HAS NOW MOVED OFF TO THE
SOUTHEAST OF THE FORECAST AREA.

24

The office that day

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

IssuedProductOfficeCountiesLasted
May 25, 7:35 PM CDTFlash Flood WarningSJTTom Green115 min
May 25, 8:04 PM CDTSevere Thunderstorm WarningSJTSutton56 min
May 25, 8:38 PM CDTFlash Flood WarningSJTCrockett3 hr
May 25, 8:42 PM CDTSevere Thunderstorm WarningSJTSchleicher63 min
May 25, 9:26 PM CDTSevere Thunderstorm WarningSJTCrockett64 min
May 25, 11:14 PM CDTFlash Flood WarningSJTSutton3 hr
May 25, 11:41 PM CDTFlash Flood WarningSJTSchleicher2 hr

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.