1 thunderstorm wind, 1 flash flood, as filed by the National Weather Service.
Every event with a place to put it; 1 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 Mar 15, 9:50 AM CST, 1 hour 54 minutes earlier.
DEEP SOUTH TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE BROWNSVILLE TX 950 AM CST SAT MAR 15 2003 AVIATION/SHORT TERM...CURRENT VSBYS AT THE 3 VALLEY AIRPORTS ARE >6SM ATTM WITH CIGS HOLDING STEADY BELOW 1 KFT. CURRENT KBRO REFLECTIVITY SHOWS SCATTERED CONV FIRING TO THE SOUTH OF THE BORDER OVER NE MEXICO MOVING NE AT 15 TO 20 MPH. THE 12Z BRO SOUNDING SHOWS A DECENT LI AROUND -6 IN PLACE OVER THE CWA WITH A RESPECTIBLE PWAT AROUND 1.50 INCHES. SHORT RANGE GUIDANCE MAINTAINS SEVERAL 5H VORTICES ADVECTING OVER THE AREA AS A STRONG 5H TROUGH MOVES EAST OUT OF NORTHERN MEXICO. THIS UPPER LEVEL TROUGHING WILL PROVIDE PLENTY OF UVV ACROSS THE ENTIRE BRO CWA TODAY MAINTAINING THE CONV THREAT. WILL ADJUST THE CURRENT WORDING OF THE FIRST PERIOD OF THE ZFP TO REFLECT BETTER INITIAL CONV CHCS NEAR THE BORDER...BUT OVERALL FORECAST TREND LOOKS GOOD. LOW OVC AND RAIN COOLED OUTFLOWS FROM THE CONV TO OUR SOUTH AND WEST WILL KEEP HIGH TEMPS SUPPRESSED THIS AFTERNOON. CURRENT TEMP WORDING IN THE FIRST PERIOD LOOKS ON TRACK WITH NO ADJUSTMENTS NEEDED HERE. MARINE...THE E-NE SURFACE FLOW WILL GRADUALLY TRANSITION TO A MORE SE FLOW PATTERN LATER THIS AFTERNOON AS THE SURFACE TROFFING INCREASES OVER NORTHERN MEX AND WEST TX. CONV NOW REMAINS CLUSTERED AROUND BUOY020 MOVING NE AT 10 TO 15 MPH. WILL LIKELY REISSUE THE MWSBRO HIGHLIGHTING THE CONV POTENTIAL ALONG THE BAY AND GULF WATERS FOR THE REST OF TODAY. CURRENT CWF WORDING LOOKS OK WITH NO CHANGES REQUIRED ATTM. SYNOPTIC-AVIATION-MARINE...60/MESO...MARTINEZ .BRO...NONE. THIS PRODUCT IS ALSO AVAILABLE ON OUR INTERNET WEB PAGE AT: HTTP://WWW.SRH.NOAA.GOV/BRO
GMZ130-150-155-170-175-TXZ248>257-161200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BROWNSVILLE TX 600 AM CST SAT MAR 15 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR DEEP SOUTH TEXAS. .DAY ONE...TODAY AND TONIGHT. AREAS OF FOG WILL SHROUD THE COASTAL SECTIONS OF DEEP SOUTH TEXAS. FOG WILL CONTINUE THROUGH EARLY AFTERNOON. AREAS OF SEA FOG OVER THE COASTAL WATERS WILL REDUCE VISIBILITIES TO ONE TO THREE NAUTICAL MILES TODAY. FOG IS EXPECTED TO REDEVELOP ALONG THE COASTAL AREAS LATER TONIGHT. SCATTERED SHOWERS WITH EMBEDDED THUNDERSTORMS ARE POSSIBLE THIS AFTERNOON. RAINFALL AMOUNTS WITH THE SHOWERS AND THUNDERSTORMS WILL AVERAGE AROUND 1/2 INCH...WITH LOCALLY HIGHER AMOUNTS OF MORE THAN 3 INCHES POSSIBLE. ALSO...DANGEROUS LIGHTNING...GUSTY WINDS AND POSSIBLY SMALL HAIL CAN BE EXPECTED WITH THE STRONGER STORMS. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. NO HAZARDOUS WEATHER IS EXPECTED. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED. BENNETT
The Brownsville radar (KBRO), 58 km away, was scanning. The volume nearest the first event began at 17:43 UTC.
1 thunderstorm wind, 1 flash flood. Local standard time, as filed.
Strong thunderstorms downed power lines in the town of Progreso. The damage was reported by the Texas Department of Public Safety.
Heavy rainfall of 4 to 5 inches over the course of 3 hours produced flash flooding over Progreso and southern Mercedes.
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, March 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: 5349176, 5349177.