Alert archive / Texas / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 49, NWS Corpus Christi, TX

July 28, 2003Jim Wells County, Texas

NWS Corpus Christi, TX issued this severe thunderstorm warning at Jul 28, 2003, 4:03 PM CDT for Jim Wells County, Texas. It was in force for 42 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 28, 2003, 4:03 PM CDT (21:03 UTC)
Expired
Jul 28, 2003, 4:45 PM CDT
In force
42 min
Issued by
NWS Corpus Christi, TX
Area
Counties, with a storm outline in the text

County Jim Wells 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

Corpus Christi, TX (KCRP), launched 12:00Z, 9.1 hours before the alert went out and 82 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, Corpus Christi, TX at 12:00Z on 2003-07-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2905 joules per kilogram.LCLEL10008507005003002001001 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, Corpus Christi, TX at 12:00Z on 2003-07-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -7 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
2905 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
656 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
-7 m²/s²
0-3 km storm-relative helicity
-24 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KCRP 282103
SVRCRP
TXC249-282145-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
401 PM CDT MON JUL 28 2003

THE NATIONAL WEATHER SERVICE IN CORPUS CHRISTI HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL JIM WELLS COUNTY IN TEXAS

* UNTIL 445 PM CDT

* AT 349 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
  A SEVERE THUNDERSTORM OVER SOUTH CENTRAL JIM WELLS COUNTY BETWEEN 
  BEN BOLT AND PREMONT...MOVING NORTHWEST AT 10 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  OPEN COUNTRY IN CENTRAL JIM WELLS COUNTY THROUGH 430 PM CDT...

THIS SEVERE THUNDERSTORM IS CAPABLE OF PRODUCING...
  HAIL UP TO THE SIZE OF PENNIES...
  WINDS UP TO 60 MILES AN HOUR...
  VERY FREQUENT AND DEADLY CLOUD-TO-GROUND LIGHTNING...

LAT...LON 2741 9807 2758 9808 2766 9822 2745 9822

$$

MJG

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 Corpus Christi, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 28, 2:20 PM CDT, 1 hour 43 minutes earlier.

Area forecast discussion, Jul 28, 2:20 PM CDT, 1 hour 43 minutes before
COASTAL BEND FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
220 PM CDT MON JUL 28 2003

SHORT-TERM(TONIGHT THRU TUE NIGHT)...WEAKNESS ALOFT ACROSS S TX IN
BETWEEN TWO RIDGES...ONE OVR N TX/SW U.S. AND ONE OVR MEX...WILL
PREVAIL THROUGH TUE PROVIDING DIFFLUENT FLOW ALOFT AND A SERIES OF
S/WVS. PWATS WILL REMAIN NEAR 2 INCHES WITH UNSTABLE ENVIRONMENT AND
NO CAP. THUS WL GO SCT SHRA/TSRA FOR TUE FOR E CWA WHERE BEST SFC
AND UPPER LEV SUPPORT WILL BE...SLGT CHC W. A FAIRLY WEAK ONSHORE
FLOW WILL ALSO CONT THRU TUE...WHICH MEANS THE POTENTIAL FOR FC
DVLPMNT ONCE AGAIN. TEMPS WILL BE A COUPLE DEGREES COOLER THAN CLIMO
WITH MC CONDITIONS EXPECTED.

LONG TERM (WED THROUGH MON)...WEAK VORTICITY ALOFT ALONG WITH PWS
NEAR 2 INCHES WL KEEP SCTD POPS FOR PORTIONS OF THE CWFA IN FOR
WED.  A WEAK MID/UPR TROUGH AXIS WL THEN SLIDE SOUTH OF THE CWFA BY
THU.  SOME WEAK RIDGING ALOFT WL BUILD INTO THE AREA AND ALLOW FOR
SOME DRYING TO TAKE HOLD.  THUS...WL DROPS POPS BACK TO THE SLIGHT
CHC CATEGORY BY THU.  ANOTHER WEAK TROUGH AXIS WL SWING THROUGH BY
SAT AND WL DIMINISH MOISTURE EVEN MORE.  THE LATEST GFS WAS
INDICATING PWS DROPPING TO 1.5 TO 1.8 INCHES BY SAT.  EXPECT ONLY
ISOLATED CONVECTION ACROSS MAINLY THE NERN ZONES AND ADJACENT
COASTAL WATERS BY THEN.  NOT MUCH CHANGE IN THIS FCST IS EXPECTED
THROUGH EARLY NEXT WEEK AS SOUTH TX WL BE UNDER THE INFLUENCE FROM A
RDG ALOFT CENTERED TO OUR NORTHWEST.  WL BUMP UP TEMPS BY THE
WEEKEND GIVEN THE DECREASE IN MOISTURE AND INCREASE IN SLY FLOW.

PRELIMS...
CRP EE 078/093 076/092/076 13222
VCT EE 074/094 075/093/075 13332
LRD EE 077/099 079/097/079 22122

.CRP...NONE.

81/TE (SHORT-TERM)
80/MB (LONG-TERM)
Hazardous weather outlook, Jul 28, 4:00 AM CDT, 12 hours 3 minutes before
TXZ229>234-239>247-291100-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
400 AM CDT MON JUL 28 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH TEXAS.

.DAY ONE...TODAY AND TONIGHT

SCATTERED SHOWERS AND THUNDERSTORMS WILL AFFECT SOUTH TEXAS TODAY IN
RESPONSE TO AN UPPER LEVEL DISTURBANCE. THE THUNDERSTORMS WILL BE
SLOW MOVING AND WILL PRODUCE LOCALIZED HEAVY RAIN AND FLOODING.
FUNNEL CLOUDS WILL BE POSSIBLE WITH THE STRONGER STORMS DUE TO A
LIGHT WIND REGIME. THE SHOWER AND THUNDERSTORM ACTIVITY WILL BECOME
ISOLATED TONIGHT.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

DAYTIME HEATING WILL COMBINE WITH A SEMI TROPICAL AIRMASS TO PRODUCE
ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS THROUGH FRIDAY.
UPPER LEVEL HIGH PRESSURE WILL BEGIN TO BUILD OVER SOUTH TEXAS BY
THE WEEKEND...LIMITING THE CHANCES FOR SHOWER AND THUNDERSTORM
DEVELOPMENT BY SUNDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED.

BB/GW

The office that day

Everything else NWS Corpus Christi, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 28, 1:10 PM CDTSpecial Marine WarningCRP50 min
Jul 28, 3:37 PM CDTTornado WarningCRPLive Oak38 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.