The upper level low pressure system which lingered over south Texas in July triggered showers and thunderstorms over portions of Deep South Texas July 3. Some of the showers and thunderstorms produced heavy rains which resulted in continued flooding in the Rio Grande City area and along Los Olmos Creek which had been experiencing flooding from heavy rainfall since the end of June.
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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 episode as NWS BRO wrote it up.
The upper level low pressure system which lingered over south Texas in July triggered showers and thunderstorms over portions of Deep South Texas July 3. Some of the showers and thunderstorms produced heavy rains which resulted in continued flooding in the Rio Grande City area and along Los Olmos Creek which had been experiencing flooding from heavy rainfall since the end of June. A thunderstorm in Willacy County produced an estimated 4 to 5 inches of rain during the afternoon. A thunderstorm in Hidalgo County produced hail and wind damage in the late afternoon and early evening hours.
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 Jul 3, 2:00 AM CST, 19 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BROWNSVILLE TX 300 AM CDT TUE JUL 3 2007 .DISCUSSION...THE FIRST FORECAST DECISION FOR THE SHIFT IS THE STATUS OF THE FLASH FLOOD WATCH. THE VARIOUS MODELS SUGGEST THAT WEDNESDAY MAY BE BE MORE SIGNIFICANT FOR RAINFALL OVER THE MID AND UPPER VALLEY THAN TODAY. NONETHELESS...MOISTURE LEVELS REMAIN HIGH TODAY...WITH ABOVE AVERAGE AMOUNTS EXTENDING WELL INLAND...EVEN AS FAR AS DEL RIO AND BEYOND...BUT DEFINITELY WELL ABOVE AVERAGE FOR DEEP SOUTH TEXAS. THE MID LEVEL LOW REMAINS OVER CENTRAL TEXAS...BUT IS FORECAST TO DRIFT SLOWLY SOUTH AND SOUTHWEST THROUGH THURSDAY. H5 RIDGING IS BLOCKING WESTWARD MOVEMENT OF THE LOW IN THE SHORT TERM...AND IT WONT BE UNTIL AFTER WEDNESDAY THAT THE LOW CAN MAKE SIGNIFICANT PROGRESS IN THAT DIRECTION. DUE TO SIGNIFICANT PREVIOUS RAINFALL IN THE UPPER VALLEY AND THE POTENTIAL FOR REDEVELOPMENT TODAY...WILL REISSUE THE FLASH FLOOD WATCH FOR ZAPATA...STARR...AND JIM HOGG COUNTIES. THE MID AND LOWER VALLEY HAS THUS FAR BEEN SPARED FROM SIGNIFICANT HEAVY RAINFALL...BUT MAY NEED TO EXTEND THE WATCH FARTHER EAST EITHER TODAY OR FOR WEDNESDAY WHEN MORE WIDESPREAD RAIN IS EXPECTED ACROSS DEEP SOUTH TEXAS. THUNDERSTORM REDEVELOPMENT SOUTH OF RIO GRANDE CITY AT AROUND 2:30 AM MOVING NORTH...PLUS A BAND OF RAIN APPROACHING FROM THE GULF. LOOKS LIKE ANOTHER ROUND FOR TODAY. THE MAIN FORECAST EMPHASIS IS ON THE SHORT TERM...WITH LOWER TEMPERATURES THAN GUIDANCE INDICATED BECAUSE OF CLOUD COVER AND RAIN. CONDITIONS ARE EXPECTED TO IMPROVE AFTER THURSDAY...THOUGH SHOWERS MAY CONTINUE TO MOVE UP FROM THE SOUTH TO AFFECT THE COASTAL REGIONS. MID LEVEL RIDGING AND SURFACE HIGH PRESSURE WILL OTHERWISE RESULT IN FAIRLY SEASONAL WEATHER FOR THE LATTER PART OF THE FORECAST. && .PREV DISCUSSION...ISSUED AT 717 PM CDT MON JUL 2 2007... THUNDERSTORMS THIS EVENING RESTRICTED TO EXTREME NORTHWEST ZAPATA COUNTY AND FURTHER INTO MEXICO. STORMS ARE FORMING ON OUTFLOW BOUNDARY SWEEPING WEST INTO MEXICO...WITH NO OTHER BOUNDARIES NOTED IN OR AROUND THE CWA. THE NIGHT SHIFT WILL MAKE THE DECISION ON EXTENDING THE FLOOD WATCH. WITH ABUNDANT MOISTURE STILL AVAILABLE... ONE ROGUE OUTFLOW COULD START THE RAIN PROCESS ALL OVER...SO WILL KEEP POPS IN FOR THE EVENING. WILL NOT NEED UPDATE. && .MARINE...AT 1 AM BUOY 20 REPORTED SOUTHEAST WINDS AT 12 KNOTS WITH GUSTS TO 14 KNOTS AND SEAS AT 4 FEET WITH A 6 SECOND PERIOD. A HIGH PRESSURE RIDGE EXTENDING INTO THE COASTAL WATERS WILL MAINTAIN LIGHT TO MODERATE SOUTHEASTERLY WINDS OVER THE MARINE AREAS THIS WEEK. WINDS AND SEAS WILL INCREASE SLIGHTLY ON THURSDAY...AND WILL THEN DECREASE WITH THE WINDS BECOMING LIGHT AND THE SEAS BECOMING LOW BY SATURDAY. A MID LEVEL LOW PRESSURE SYSTEM LOCATED ACROSS CENTRAL TEXAS WILL CONTINUE TO MAINTAIN A CHANCE FOR SHOWERS AND ISOLATED THUNDERSTORMS MOVING ACROSS PORTIONS OF THE MARINE AREAS AT TIMES FOR THE NEXT FEW DAYS. WINDS AND SEAS MAY INCREASE IN AND NEAR ANY SHOWERS OR THUNDERSTORMS. && .AVIATION...VFR TO MVFR CONDITIONS WITH CLEAR TO PARTLY CLOUDY SKIES AND LIGHT SOUTHEAST WINDS ARE OCCURRING AT THE REGIONAL AIRPORTS. THE LOWERED CONDITIONS ARE DUE TO REDUCED CEILINGS. THERE IS A CONTINUED CHANCE FOR SHOWERS AND ISOLATED THUNDERSTORMS MOVING ACROSS PORTIONS OF THE CWA TODAY. ANY SHOWERS OR THUNDERSTORMS MAY REDUCE CEILINGS OR VISIBILITIES TO MVFR OR TEMPORARY IFR CONDITIONS. LIGHT WINDS EARLY THIS MORNING WILL BECOME MODERATE BY THIS AFTERNOON. THE WINDS MAY INCREASE IN AND NEAR ANY SHOWERS OR THUNDERSTORMS. VFR TO TEMPORARY IFR CONDITIONS WILL PREVAIL OVER THE REGIONAL AERODROMES DURING THE NEXT 24 HOURS. && .PRELIMINARY POINT TEMPS/POPS... BAYVIEW 89 80 89 79 91 78 / 70 30 70 20 50 10 BROWNSVILLE 90 79 90 78 92 77 / 70 20 70 20 50 10 FALFURRIAS 91 76 91 76 91 75 / 60 40 50 20 50 10 HARLINGEN 91 77 91 77 93 77 / 80 30 60 20 60 10 HEBBRONVILLE 90 75 91 74 90 75 / 70 50 70 20 50 10 MCALLEN 92 78 92 78 92 78 / 60 30 40 20 40 10 PORT ISABEL 88 81 89 79 90 78 / 70 30 70 20 50 10 RIO GRANDE CITY 92 77 92 78 93 78 / 50 50 60 20 30 10 SOUTH PADRE ISLAND 87 82 89 80 89 79 / 50 20 70 20 40 10 && .BRO WATCHES/WARNINGS/ADVISORIES... FLASH FLOOD WATCH UNTIL 1 AM CDT WEDNESDAY FOR TXZ248-249-252. && THIS PRODUCT IS ALSO AVAILABLE ON OUR INTERNET WEB PAGE AT: HTTP://WWW.SRH.NOAA.GOV/BRO 54/63
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE BROWNSVILLE TX 808 AM CDT MON JUL 2 2007 TXZ248>257-031100- ZAPATA-JIM HOGG-BROOKS-KENEDY-STARR-HIDALGO-INLAND WILLACY- INLAND CAMERON-COASTAL WILLACY-COASTAL CAMERON- 808 AM CDT MON JUL 2 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR DEEP SOUTH TEXAS. .DAY ONE...TODAY AND TONIGHT SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS ARE EXPECTED OVER MUCH OF DEEP SOUTH TEXAS TODAY. SOME STORMS WILL PRODUCE TORRENTIAL RAINFALL RESULTING IN LIFE-THREATENING FLASH FLOODING. AS A RESULT...A FLASH FLOOD WATCH IS IN EFFECT FOR ALL OF DEEP SOUTH TEXAS TODAY EXCEPT THE COASTAL COUNTIES. THIS DANGER IS PARTICULARLY SIGNIFICANT OVER STARR...BROOKS AND WESTERN HIDALGO COUNTIES. PLEASE REFER TO THE LATEST FLASH FLOOD WATCH STATEMENT FOR DETAILS. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY SHOWERS AND THUNDERSTORMS WILL CONTINUE OVER PORTIONS OF DEEP SOUTH TEXAS AT TIMES THROUGH THE MIDDLE WEEK. THE STRONGER STORMS WILL PRODUCE HEAVY RAINFALL WITH LOCALIZED FLOODING POSSIBLE THROUGH THIS WEEK. .SPOTTER INFORMATION STATEMENT... SPOTTERS AND EMERGENCY MANAGERS ARE URGED TO PAY CLOSE ATTENTION TO THE LATEST WATCHES...WARNINGS AND ADVISORIES FROM THE NATIONAL WEATHER SERVICE. SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON AND EVENING.
The Brownsville radar (KBRO), 150 km away, was scanning. The volume nearest the first event began at 08:16 UTC.
3 flash flood, 1 hail. Local standard time, as filed.
Rio Grande City Police Department reports heavy rain and street flooding.
Starr County sheriff reports Los Olmos Creek through Rio Grande City over bank full.
Four to five inches of rain flooded much of the city of Raymondville. Road 186 closed from 3rd to 10th Streets.
Golf ball size hail reported by a spotter in Mission.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2007Every state in 2007This day in weather historyWarnings in Texas, July 2007
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: 47254, 47257, 47258, 47259.