Alert archive / Texas / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 30, NWS Brownsville, TX

June 2, 2003Zapata County, Texas

NWS Brownsville, TX issued this severe thunderstorm warning at Jun 2, 2003, 10:02 PM CDT for Zapata County, Texas. It was in force for 58 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: Jun 2, 2003, 10:02 PM CDT (03:02 UTC)
Expired: Jun 2, 2003, 11:00 PM CDT
In force: 58 min
Issued by: NWS Brownsville, TX
Area: Counties, with a storm outline in the text

County Zapata County, TX

The radar

The Corpus Christi radar (KCRP), 190 km from the middle of the area, began a volume at 03:06 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

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 00:00Z, 3.0 hours before the alert went out and 204 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 3099 J/kg
Mixed-layer CIN: -35 J/kg
Mixed-layer LCL: 966 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 46 m²/s²
0-3 km storm-relative helicity: 80 m²/s²
Significant tornado parameter: 1.1
Supercell composite: 5.8

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KBRO 030302
SVRBRO
TXC505-030400-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1000 PM CDT MON JUN 2 2003

THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN ZAPATA COUNTY IN DEEP SOUTH TEXAS

* UNTIL 1100 PM CDT

* AT 1000 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED  
  A SEVERE THUNDERSTORM 9 MILES NORTH OF EL CENIZO...OR 29 MILES     
  NORTH OF SAN YGNACIO. THIS THUNDERSTORM WAS MOVING SOUTH AT 25 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
   SAN YGNACIO BY 1100 PM CDT.

THIS STORM HAS A HISTORY OF PRODUCING GOLF BALL SIZE HAIL AND 
DAMAGING THUNDERSTORM WIND GUSTS UP TO 60 MPH. SEEK SHELTER NOW 
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS

LAT...LON 2750 9926 2751 9957 2693 9950 2698 9916

$$

SPEECE

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 Brownsville, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 2, 8:45 PM CDT, 1 hour 17 minutes earlier.

Area forecast discussion, Jun 2, 8:45 PM CDT, 1 hour 17 minutes before

DEEP SOUTH TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BROWNSVILLE TX
845 PM CDT MON JUN 2 2003

BROWNSVILLE DOPPLER RADAR INDICATED AN AREA OF SHOWERS OR
THUNDERSTORMS OVER NORTHERN WEBB COUNTY IN SOUTH TEXAS.  THESE
THUNDERSTORMS WERE MOVING SOUTHEAST AT 20 MPH.  THE THUNDERSTORMS
SHOULD BEGIN TO DISSIPATE THIS EVENING WITH TEMPERATURES GOING DOWN
AND ALSO THE SHOWERS MOVING INTO A MORE UNFAVORABLE AREA.  WILL HAVE
ISOLATED SHOWERS OR THUNDERSTORMS FOR THE WESTERN COUNTIES TONIGHT
AND WILL TAKE SHOWERS AND THUNDERSTORMS OUT OF THE FORECAST
COMPLETELY FOR THE REMAINDER OF DEEP SOUTH TEXAS.  THE BRO SOUNDING
THIS EVENING SHOWED A PRECIP WATER OF 1.67 AND A K-INDEX OF 19.
THERE IS A GOOD CAP AT ABOUT 6 THOUSAND FEET WHICH WOULD INHIBIT ANY
SHOWER ACTIVITY OVER ATLEAST THE EASTERN PORTION OF DEEP SOUTH
TEXAS.  OTHER THEN TAKING OUT SHOWERS OVER THE EASTERN PORTION OF
DEEP SOUTH TEXAS FOR TONIGHT PREVIOUS FORECAST PACKAGE LOOKS GOOD AT
THIS TIME.  NO OTHER UPDATES ARE NEEDED AT THIS TIME.

MARINE...BOY020 REPORTED A SOUTHEAST WIND AT 12 TO 16 KNOTS WITH 3
FOOT SEAS.  VERY LITTLE CHANGE IS EXPECTED FOR THE COASTAL WATERS IN
THE NEXT FEW DAYS.

PRELIMINARY NUMBERS FOR COORDINATION PURPOSES ONLY...
BRO BE 078/094 077/092 077 00/05/05/30/30
HRL BE 076/097 076/094 075 00/05/05/30/30
MFE BE 077/099 077/096 077 00/05/00/30/30
RGC BE 076/103 075/099 075 20/05/00/30/30
SPI BE 079/090 079/088 079 00/05/00/30/30

BRO...NONE.

SYNOPTIC...65
MESO-AVIATION-MARINE...60

THIS PRODUCT IS ALSO AVAILABLE ON OUR INTERNET WEB PAGE AT:
HTTP://WWW.SRH.NOAA.GOV/BRO

Hazardous weather outlook, Jun 2, 9:30 PM CDT, 32 minutes before

TXZ248>257-030900-

HAZARDOUS WEATHER OUTLOOK...UPDATED FOR DAY ONE
NATIONAL WEATHER SERVICE BROWNSVILLE TX
930 PM CDT MON JUN 2 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR DEEP SOUTH TEXAS.

.DAY ONE...TONIGHT.

ISOLATED SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE IN ZAPATA...JIM
HOGG AND STARR COUNTIES LATE TONIGHT.  AN ISOLATED SEVERE
THUNDERSTORM WILL BE POSSIBLE IN THESE COUNTIES THROUGH 1 AM TUESDAY
MORNING.  ANY SEVERE THUNDERSTORMS THAT FORM OR MOVE INTO THESE
COUNTIES MAY PRODUCE LARGE HAIL...DAMAGING THUNDERSTORM WINDS AND
BRIEF TORRENTIAL RAINS THROUGH 1 AM TUESDAY MORNING.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS MAY DEVELOP WEDNESDAY
AND THURSDAY AS AN AREA OF WEAKNESS DEVELOPS IN THE UPPER LEVEL RIDGE
OVER DEEP SOUTH TEXAS. IN ADDITION...A WEAK COLD FRONT IS EXPECTED TO
MOVE INTO CENTRAL TEXAS FRIDAY PROVIDING A CHANCE OF SHOWERS AND
THUNDERSTORMS FOR THE WEEKEND.

.SPOTTER INFORMATION STATEMENT.

SPOTTER ACTIVATION MAY BE REQUIRED LATER TONIGHT IN ZAPATA...JIM
HOGG AND STARR COUNTIES.

SPEECE

Nearby

Severe Thunderstorm Warnings in Texas, 2003 Every 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; radar from the NEXRAD Level II archive.