Alert archive / Texas / Severe Thunderstorm Warnings in 2003
Severe Thunderstorm Warning 45, NWS Brownsville, TX
NWS Brownsville, TX issued this severe thunderstorm warning at Jul 29, 2003, 5:50 PM CDT for Brooks County, Texas. It was in force for 55 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 29, 2003, 5:50 PM CDT (22:50 UTC)
- Expired
- Jul 29, 2003, 6:45 PM CDT
- In force
- 55 min
- Issued by
- NWS Brownsville, TX
- Area
- Counties, with a storm outline in the text
County Brooks 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, 10.8 hours before the alert went out and 120 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.
- Mixed-layer CAPE
- 3017 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 604 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- -10 m²/s²
- 0-3 km storm-relative helicity
- -4 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
241 WUUS54 KBRO 292250 SVRBRO TXC047-292345- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BROWNSVILLE TX 549 PM CDT TUE JUL 29 2003 THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL BROOKS COUNTY IN SOUTH CENTRAL TEXAS * UNTIL 645 PM CDT * AT 543 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM LOCATED 7 MILES NORTHWEST OF ENCINO...OR 17 MILES SOUTH OF FALFURRIAS...AND MOVING NORTH AT 12 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... FALFURRIAS BY 640 PM CDT. THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER... PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS. LAT...LON 2686 9839 2687 9807 2732 9812 2731 9840 $$ PHILO
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 Jul 29, 3:00 PM CDT, 2 hours 50 minutes earlier.
Area forecast discussion, Jul 29, 3:00 PM CDT, 2 hours 50 minutes before
DEEP SOUTH TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE BROWNSVILLE TX 300 PM CDT TUE JUL 29 2003 A DRY SOUTHWESTERLY PUNCH AT 6000 FEET HAS INVADED DEEP SOUTH TEXAS AND CAPPED OFF ANY THUNDERSTORM DEVELOPMENT THROUGH EARLY AFTERNOON. THIS CAP WAS STRONG ENOUGH TO COMPLETELY INHIBIT SEA BREEZE CONVECTION...EVEN THOUGH THE BRO 12Z SOUNDING SHOWED NO SIGN OF DRYING ALOFT AND A PRECIPITABLE WATER VALUE OF 2.11 INCHES. GOES SOUNDER DPI TOTAL PRECIPITABLE WATER INFORMATION SHOWS THE INVADING DRY AIR PUSHING UP FROM THE SOUTHWEST VERY NICELY. THE SOUTHWEST FLOW WAS NOT EVEN PARTICULARLY STRONG AT BRO...ABOUT 10 KNOTS...BUT IT WAS OBVIOUSLY ENOUGH TO INHIBIT A REPEAT PERFORMANCE OF YESTERDAY. ANOTHER FACET TO THE LACK OF SHOWER DEVELOPMENT THIS AFTERNOON IS EVIDENT IN THE 500 MB VORTICITY FIELDS WHICH SHOW MOST OF THE ENERGY CIRCLING AROUND OUTSIDE THE BRO COUNTY WARNING AREA. NOT SURE THIS IS NOT A TEMPORARY SCENARIO...AND FORECAST WILL REFLECT LOW POPS FOR THE NEXT 36 HOURS IN CASE THE LOW TO MID WINDS BACK TO THE SOUTH OR SOUTHEAST AGAIN...AS THEY ARE WONT (AND FORECAST) TO DO. .MARINE...AT 1 PM BUOY 020 REPORTED SOUTH WINDS AT 4 KNOTS WITH GUSTS TO 6 KNOTS AND SEAS AT 2 FEET 5 SECONDS. THE COMBINED EFFECTS OF A HIGH PRESSURE SYSTEM LOCATED OVER THE GULF OF MEXICO AND A LOW PRESSURE AREA LOCATED OVER BAJA CALIFORNIA WILL MAINTAIN LIGHT TO MODERATE SOUTH TO SOUTHEAST WINDS ACROSS THE MARINE AREAS OF DEEP SOUTH TEXAS THROUGH THE WEEK. ISOLATED SHOWERS MAY DEVELOP OVER THE MARINE AREAS FRIDAY AND SATURDAY. .AVIATION...VFR CONDITIONS ARE OCCURRING OVER THE REGIONAL AIRPORTS THIS AFTERNOON. VFR CONDITIONS ARE EXPECTED ACROSS THE CWA THE NEXT 24 HOURS. EXPECT LIGHT TO MODERATE SOUTH TO SOUTHEAST WINDS THE NEXT FEW DAYS. .PRELIMINARY POINT TEMPS/POPS... BROWNSVILLE BB 076/095 078/095 078 20/20/20/10/05 HARLINGEN BB 075/096 076/096 075 20/20/20/10/05 MCALLEN BB 075/096 075/096 075 20/20/20/10/05 RIO GRANDE CITY BB 074/098 074/098 074 20/20/20/10/05 SOUTH PADRE ISLAND BB 080/090 080/090 080 20/20/20/10/05 .BRO...NONE SYNOPTIC...69 AVIATION/MARINE...59 MESO...MARTINEZ THIS PRODUCT IS ALSO AVAILABLE ON OUR INTERNET WEB PAGE AT: HTTP://WWW.SRH.NOAA.GOV/BRO
Hazardous weather outlook, Jul 29, 2:00 PM CDT, 3 hours 50 minutes before
TXZ248>257-301100- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BROWNSVILLE TX 200 PM CDT TUE JUL 29 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR DEEP SOUTH TEXAS. .DAY ONE...TODAY AND TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT. SPOTTER ACTIVATION IS NOT EXPECTED TODAY AND TONIGHT. MARTIN
The office that day
Everything else NWS Brownsville, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 29, 5:51 PM CDT | Flash Flood Warning | BRO | Brooks | 3 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.