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, 3:11 AM CST, 2 hours 19 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BROWNSVILLE TX 311 AM CST MON MAR 15 2004 .SHORT TERM...AT MIDNIGHT...SCATTERED SHOWERS AND THUNDERSTORMS CONTINUED MOVING NORTHEAST OUT OF NORTHEAST MEXICO ACROSS DEEP SOUTH TEXAS AND ADJACENT COASTAL WATERS. WITH H5 CLOSED LOW OVER SINALOA PROGGED TO MOVE EAST AND BECOME AN OPEN WAVE AS IT MOVES ACROSS SOUTH TEXAS TODAY...WILL CONTINUE THE FLASH FLOOD WATCH FOR DEEP SOUTH TEXAS THROUGH 4 PM MONDAY EVENING. LOCAL EVENING SOUNDING INDICATED A PWAT OF 1.41 INCHES WITH A LIFTED INDEX OF -4.6. A JET STREAK CURRENTLY LIFTING OUT OF SOUTH CENTRAL TEXAS WILL BE FOLLOWED BY ANOTHER STREAK PRECEDING THE SHORT WAVE EXPECTED LATER TODAY. BY TUESDAY MORNING...A BACKDOOR COLD FRONT WILL ENTER DEEP SOUTH TEXAS AS A RESULT OF A SHORT WAVE MOVING OVER THE PLAINS. RESULTING NORTHEAST SURFACE FLOW WILL VEER TO THE SOUTHEAST BY EVENING...AS THE DOMINANT SURFACE RIDGE MOVES OFFSHORE. WITH DRY NORTHWEST UPPER LEVEL FLOW OVER THE AREA AND RIDGING AT THE SURFACE...TUESDAY TEMPERATURES WILL BE NEAR NORMAL. AFTERNOON TEMPERATURES FOR WEDNESDAY SHOULD BE SLIGHTLY ABOVE NORMAL. && .LONG TERM...THE DRY PATTERN FOR DEEP SOUTH TEXAS CONTINUES THROUGH THURSDAY. AS A NORTHERN STREAM SYSTEM PULLS ANOTHER COLD FRONT INTO CENTRAL TEXAS EARLY FRIDAY...LOW LEVEL MOISTURE INCREASES OVER THE FORECAST AREA. WILL ADD A SLIGHT CHANCE FOR SHOWERS FOR THE DAY AND LOWER MAXIMUM TEMPERATURES A FEW DEGREES. ONSHORE FLOW WILL MODERATE AFTERNOON TEMPERATURES DURING THE WEEKEND. WILL LOWER MAX AND MIN TEMPERATURES ACCORDINGLY. && MARINE...AT 1 AM BUOY 020 REPORTED EAST-NORTH-EAST WINDS AT 19 KNOTS WITH GUSTS TO 21 KNOTS AND SEAS AT 5 FEET WITH A 7 SECOND PERIOD. A FRONTAL BOUNDARY HAS MOVED THROUGH THE COASTAL WATERS OF DEEP SOUTH TEXAS. AN UPPER LEVEL LOW OVER MEXICO CONTINUES TO ADVECT MOISTURE OVER THE MARINE AREAS. OVERRUNNING OF MOISTURE ACROSS THE FRONTAL TROUGH WILL RESULT IN SCATTERED SHOWERS AND THUNDERSTORMS OVER THE COASTAL WATERS THROUGH MONDAY NIGHT. WINDS AND SEAS WILL REMAIN LIGHT TO MODERATE THROUGH THE PERIOD EXCEPT IN AND NEAR THUNDERSTORMS. A COLD FRONT WILL MOVE THROUGH THE COASTAL WATERS TUESDAY AFTERNOON. BEHIND THE FRONT A HIGH PRESSURE SYSTEM WILL BUILD OVER THE MARINE AREAS. THE HIGH WILL RESULT IN CLEAR TO PARTLY CLOUDY SKIES AND DRIER CONDITIONS THROUGH FRIDAY. && .AVIATION...IFR CONDITIONS ARE BEING REPORTED AT THE REGIONAL AIRPORTS OF DEEP SOUTH TEXAS DUE TO LOWERED CEILINGS. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS ARE MOVING OVER PORTIONS OF DEEP SOUTH TEXAS. AREAS OF RAIN AND FOG HAVE REDUCED VISIBILITIES AND CEILINGS. OVERRUNNING OF A FRONTAL BOUNDARY COUPLED WITH AN UPPER LEVEL LOW OVER MEXICO WILL MAINTAIN THE CHANCES FOR SCATTERED SHOWERS AND THUNDERSTORMS OVER THE CWA THROUGH MONDAY NIGHT. AREAS WHERE HEAVY RAINS OCCUR WILL HAVE REDUCED CEILINGS TO AROUND 1000 FEET AND VISIBILITIES TO AROUND 3 MILES. VFR CONDITIONS WITH PERIODS OF MVFR AND IFR CONDITIONS DUE TO REDUCED VISIBILITIES AND CEILINGS WILL CONTINUE OVER THE CWA THE NEXT 24 HOURS. && .PRELIMINARY TEMPS/POPS... BAYVIEW/PORT ISABEL 72 62 75 63 76/ 90 50 00 00 00 BROWNSVILLE 74 61 78 62 80/ 90 50 00 00 00 HARLINGEN 74 60 79 61 81/ 90 50 00 00 00 MCALLEN 75 61 80 60 82/ 90 40 00 00 00 RIO GRANDE CITY 75 60 81 59 83/ 90 30 00 00 00 SOUTH PADRE ISLAND 71 63 75 63 75/ 90 60 00 00 00 && .BRO...FLASH FLOOD WATCH TODAY FOR TXZ248>257. SYNOPTIC...59 AVIATION/MARINE/MESO...63 THIS PRODUCT IS ALSO AVAILABLE ON OUR INTERNET WEB PAGE AT: HTTP://WWW.SRH.NOAA.GOV/BRO
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BROWNSVILLE TX 500 AM CST MON MAR 15 2004 TXZ248>257-161100- BROOKS-COASTAL CAMERON-COASTAL WILLACY-HIDALGO-INLAND CAMERON- INLAND WILLACY-JIM HOGG-KENEDY-STARR-ZAPATA- 500 AM CST MON MAR 15 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR DEEP SOUTH TEXAS. .DAY ONE...TONIGHT. AN UPPER LEVEL LOW PRESSURE AREA WILL CONTINUE TO PRODUCE SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS OVER DEEP SOUTH TEXAS TODAY AND TONIGHT. THE POTENTIAL FOR HEAVY RAIN PRODUCING THUNDERSTORMS EXISTS. AS A RESULT OF THE HEAVY RAIN POTENTIAL ACROSS THE REGION...A FLASH FLOOD WATCH WILL REMAIN IN EFFECT TODAY FOR ALL OF DEEP SOUTH TEXAS. ANY THUNDERSTORM ACTIVITY WILL GENERATE OCCASIONAL LIGHTNING...GUSTY WINDS AND LOCALLY HEAVY RAINS. AREAS OF FOG MAY DEVELOP OVER PORTIONS OF DEEP SOUTH TEXAS TONIGHT. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED TODAY. MARTIN
The Brownsville radar (KBRO), 27 km away, was scanning. The volume nearest the first event began at 11:32 UTC.
1 flash flood. Local standard time, as filed.
Heavy rains over Cameron county produced flash flooding. Flash flooding of roads and small streams was reported over western sections of the city of Brownsville and also in the Paseo de la Resaca area.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2004Every state in 2004This day in weather historyWarnings in Texas, March 2004
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: 5393392.