Alert archive / Texas / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 3, NWS San Angelo, TX

April 7, 2003Schleicher County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at Apr 7, 2003, 11:55 AM CDT for Schleicher County, Texas. It was in force for 50 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, 11:55 AM CDT (16:55 UTC)
Expired
Apr 7, 2003, 12:45 PM CDT
In force
50 min
Issued by
NWS San Angelo, TX
Area
Counties, with a storm outline in the text

County Schleicher 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 12:00Z, 4.9 hours before the alert went out and 173 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 2003-04-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 973 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 12:00Z on 2003-04-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 86 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
973 J/kg
Mixed-layer CIN
-60 J/kg
Mixed-layer LCL
1167 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
86 m²/s²
0-3 km storm-relative helicity
183 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.0

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KSJT 071655
SVRSJT
TXC413-071745-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SAN ANGELO TX
1155 AM CDT MON APR 7 2003

THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SCHLEICHER COUNTY IN SOUTHWEST TEXAS

* UNTIL 1245 PM CDT

* AT 1153 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 14 MILES WEST OF ELDORADO...MOVING NORTHEAST AT
  15 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
   ELDORADO AT 1235 PM CDT

HAIL UP TO THE SIZE OF NICKELS AND WIND GUSTS UP TO 60 MPH 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 3097 10092 3072 10094 3086 10049 3108 10051

$$

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 Apr 7, 2:45 AM CDT, 9 hours 10 minutes earlier.

Area forecast discussion, Apr 7, 2:45 AM CDT, 9 hours 10 minutes before
WEST CENTRAL TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN ANGELO TX
245 AM CDT MON APR 7 2003

.CURRENT...COLD FRONT CURRENTLY WORKING THROUGH THE NORTHERN BIG
COUNTRY EARLY THIS MORNING. ALSO A COUPLE OF SHORTWAVES COMING
TOWARDS THE AREA FROM THE WEST AND SOUTHWEST. ALTHOUGH MOISTURE HAS
BEEN SCOURED OUT OF THE FORECAST AREA...60+ DEW POINTS AS CLOSE AS A
HONDO TO AUSTIN LINE. SATELLITE ALSO INDICATES INCREASING CLOUDS AS
FIRST SHORTWAVE ADVANCES ON THE FORECAST AREA.

.TODAY...COLD FRONT WILL CONTINUE TO MAKE PROGRESS THROUGH MUCH OF
THE FORECAST AREA TODAY AND BECOME NEARLY STATIONARY ACROSS THE
SOUTHERN COUNTIES BY LATE THIS AFTERNOON. AS SHORTWAVE COMES ACROSS
WILL SEE MOISTURE MAKE A LITTLE RETURN TO THE SOUTHERN COUNTIES.
EXPECT TO SEE SHOWERS AND THUNDERSTORMS BEGIN TO DEVELOP LATE IN THE
DAY NEAR THE FRONT...WHICH LOOKS TO BE FROM DEL RIO TO NEAR JUNCTION.

.TONIGHT...SHOWERS AND THUNDERSTORMS WILL CONTINUE TO DEVELOP EARLY
IN THE EVENING...DIFFICULT TO TELL JUST HOW FAR NORTH TO TAKE THE
THUNDERSTORM ACTIVITY...BUT CURRENT THINKING IS THAT IT WILL BE
ALONG AND SOUTH OF A SAN ANGELO TO BROWNWOOD LINE. THIS SHOWER AND
THUNDERSTORM ACTIVITY SHOULD EXIT TO THE EAST BY SUNRISE.

.TUESDAY-WEDNESDAY...WILL SEE SURFACE CONTINUE TO BUILD INTO THE
AREA THROUGH THE PERIOD. BY TUESDAY NIGHT/WEDNESDAY MORNING...WILL
SEE CLEAR SKIES AND LIGHT WINDS. WITH THE DRY AIR MOVING IN...WILL
SEE TEMPERATURES FALL RAPIDLY. DID LOWER TEMPERATURES SOME FOR
WEDNESDAY MORNING...BUT NOT AS LOW AS POTENTIALLY COULD BE. THERE IS
THE POTENTIAL FOR A BRIEF FREEZE...BUT WILL LET LATTER SHIFTS TAKE A
BETTER LOOK AT THIS.

.THURSDAY-SUNDAY...WILL SEE RIDGE BUILD INTO THE AREA THROUGH THIS
PERIOD AND GRADUAL WARMING TREND. THIS IS HANDLED IN THE GOING
FORECAST...AND MADE CHANGES ONLY TO BLEND FORECAST WITH SURROUNDING
OFFICES.

CCF PRELIMS...

ABI 068/040/059/034 0110
SJT 073/041/062/033 -1-0
JCT 077/046/064/034 231-

.SJT...NONE.

27/BRAZZELL
Hazardous weather outlook, Apr 7, 5:00 AM CDT, 6 hours 55 minutes before
TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-140-
154-155-168>170-081000-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN ANGELO TX
500 AM CDT MON APR 7 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WEST CENTRAL TEXAS.

.DAY ONE...

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED.

23/HUBER

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 7, 11:31 AM CDTSevere Thunderstorm WarningSJTCrockett44 min
Apr 7, 12:29 PM CDTSevere Thunderstorm WarningSJTCrockett46 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.