3 flash flood, as filed by the National Weather Service.
Every event with a place to put it; 3 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The local office's own words before the first event, 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 the first event at Sep 17, 2:00 PM CST, 40 minutes earlier.
DEEP SOUTH TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE BROWNSVILLE TX 300 PM CDT WED SEP 17 2003 .SHORT TERM...SCATTERED SHOWERS AND THUNDERSTORMS CONTINUE TO DRIFT WESTWARD FROM THE GULF OF MEXICO THROUGH DEEP SOUTH TEXAS AS MOISTURE AND INSTABILITY REMAIN PLENTIFUL ACROSS THE RIO GRANDE VALLEY. WEAK FLOW REGIME COUPLED WITH TROPICAL TYPE AIR MASS WILL LEND ITSELF TO CONTINUED SCATTERED SHOWERS AND THUNDERSTORM THROUGH THE NEXT 48 HOURS. A WEAK COLD FRONT IS EXPECTED TO DROP SOUTH THROUGH CENTRAL TEXAS FRIDAY AND MAY STALL NORTH OF THE VALLEY...AGAIN ALLOWING MOISTURE TO POOL ALONG THE FRONT. GIVEN SATURATED GROUND CONDITIONS AND FFG VALUES AROUND 1.5 INCHES...LOCALIZED FLOODING IS POSSIBLE. .EXTENDED...ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED THROUGH THE WEEKEND AS MOISTURE AN INSTABILITY REMAIN IN PLACE ACROSS THE REGION. A SLIGHTLY DRIER AIRMASS WILL MOVE INTO DEEP SOUTH TEXAS NEXT WEEK AS A COLD FRONT IS LIKELY TO PASS THROUGH THE COAST BY THURSDAY. SHOWERS AND THUNDERSTORMS WILL ACCOMPANY THE LEADING EDGE OF THE COLD FRONT AND DRIER MORE STABLE AIR IS EXPECTED IN THE POST FRONTAL AIR BY THURSDAY. .MARINE...AT 1 PM BUOY 020 REPORTED EAST WINDS AT 14 KNOTS WITH GUSTS TO 19 KNOTS AND SEAS AT 4 FEET 6 SECONDS. BROWNSVILLE DOPPLER RADAR DETECTED SCATTERED SHOWERS AND THUNDERSTORMS OVER THE MARINE AREAS. A HIGH PRESSURE RIDGE STRETCHES ACROSS TEXAS WHILE A LOW PRESSURE TROUGH EXTENDS ACROSS DEEP SOUTH TEXAS AND ALONG THE NORTHEAST COAST OF MEXICO. EXPECT SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS WITH LIGHT TO MODERATE EAST TO SOUTHEAST WINDS THROUGH THURSDAY. A WEAK COLD FRONT IS EXPECTED TO MOVE ACROSS THE MARINE AREAS FRIDAY PRODUCING MODERATE NORTHEAST WINDS AND SCATTERED SHOWERS AND THUNDERSTORMS. SATURDAY AND SUNDAY SHOULD BE A LITTLE DRIER WITH ONLY ISOLATED SHOWERS AND THUNDERSTORMS. A STRONGER COLD FRONT IS EXPECTED TO MOVE ACROSS THE MARINE AREAS EARLY NEXT WEEK. .AVIATION...VFR CONDITIONS WITH TEMPORARY MVFR OR IFR CONDITIONS ARE OCCURRING AT THE REGIONAL AIRPORTS THIS AFTERNOON. EXPECT VFR CONDITIONS WITH PERIODS OF MVFR OR IFR CONDITIONS TO CONTINUE OVER THE REGIONAL AIRPORTS OF DEEP SOUTH TEXAS THE NEXT FEW DAYS. THE MVFR OR IFR CONDITIONS WILL OCCUR DURING SHOWERS OR THUNDERSTORMS. LIGHT TO MODERATE EAST TO SOUTHEAST WINDS ARE EXPECTED OVER THE CWA THROUGH THURSDAY. .PRELIMINARY POINT TEMPS/POPS... BROWNSVILLE ET 073/087 073/087 073 70/60/60/40/20 HARLINGEN ET 072/088 072/088 072 60/60/60/40/20 MCALLEN ET 072/090 072/090 072 60/60/60/40/20 RIO GRANDE CITY ET 071/091 071/091 071 40/60/60/40/20 SOUTH PADRE ISLAND ET 081/086 081/086 081 40/60/60/40/20 .BRO...NONE. SYNOPTIC/GRIDS...53 MARINE/AVIATION...63 THIS PRODUCT IS ALSO AVAILABLE ON OUR INTERNET WEB PAGE AT: HTTP://WWW.SRH.NOAA.GOV/BRO
TXZ248>257-181100- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BROWNSVILLE TX 600 AM CDT WED SEP 17 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR DEEP SOUTH TEXAS. .DAY ONE...TODAY AND TONIGHT. THE CHANCE FOR SHOWERS AND THUNDERSTORMS WILL CONTINUE OVER DEEP SOUTH TEXAS...AS A HIGH PRECIPITABLE WATER CONTENT IS MAINTAINED BY A DEEP LAYER ONSHORE FLOW. THE GREATEST WEATHER HAZARD TODAY AND THIS EVENING WILL BE BRIEF LOCALIZED FLOODING. NO SPOTTER ACTIVATION IS ANTICIPATED. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY. THE CHANCES OF BRIEF LOCALIZED FLOODING WILL INCREASE ON THURSDAY AND FRIDAY...IN AN ATMOSPHERE WITH ABUNDANT MOISTURE AHEAD OF A WEAK FRONTAL BOUNDARY EXPECTED TO MOVE THROUGH DEEP SOUTH TEXAS ON FRIDAY. A STRONGER COLD FRONT WILL BREEZE THROUGH THE AREA MONDAY NIGHT AND EARLY ON TUESDAY...TOUCHING OFF MORE SHOWERS AND THUNDERSTORMS WITH THE CHANCE OF BRIEF LOCALIZED FLOODING FOR MONDAY AND EARLY TUESDAY. .SPOTTER INFORMATION STATEMENT. NO SPOTTER ACTIVATION IS ANTICIPATED. 59
The Brownsville radar (KBRO), 93 km away, was scanning. The volume nearest the first event began at 20:41 UTC.
3 flash flood. Local standard time, as filed.
Flash flooding of city streets was reported by the McAllen Police Department due to heavy rains.
Flash flooding of city streets was reported by the City of Weslaco Emergency Management Coordinator due to heavy rains. The water produced minor damage to several businesses and homes.
Flash flooding of city streets was reported by the Mercedes Police Department due to heavy rains.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2003Every state in 2003This day in weather historyWarnings in Texas, September 2003
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5327738, 5327740, 5327739.