A weak closed low on the periphery of high pressure along the coast was migrating southwestward into Mexico. This upper level system combined with increasing RH values, produced isolated to scattered showers and thunderstorms across the Rio Grande Valley and Deep South Texas on the afternoon and evening of September 2nd.
Every event with a place to put it. 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 episode as NWS BRO wrote it up.
A weak closed low on the periphery of high pressure along the coast was migrating southwestward into Mexico. This upper level system combined with increasing RH values, produced isolated to scattered showers and thunderstorms across the Rio Grande Valley and Deep South Texas on the afternoon and evening of September 2nd. Some of this activity moved northwest across Zapata County at 5 to 10 mph and produced periods of heavy rainfall with rates of two inches per hour and gusty winds. One storm became severe and produced quarter size hail and estimated 65 mph winds in downtown Zapata.
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 2, 6:13 PM CST, 1 hour 15 minutes earlier.
AREA FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE BROWNSVILLE TX 713 PM CDT MON SEP 2 2013 .DISCUSSION...UPDATED FOR LATEST AVIATION DISCUSSION BELOW. && .AVIATION...CONVECTION HAS ENDED OVER THE LOWER AND MIDDLE RIO GRANDE VALLEY...AND TRANQUIL CONDITIONS ARE SETTING UP FOR TONIGHT. CALM WINDS AND SCATTERED CLOUDINESS ARE EXPECTED...AND WITH JUST OVER AN INCH OF RAINFALL THAT OCCURRED AT HRL AIRPORT TODAY... THE SUCCESSIVE SHIFT WILL HAVE TO MONITOR FOR LIGHT FOG FORMATION THERE...BUT HAVE NOT PLACED IT IN THE FORMAL TAF PACKAGE. FOR TUESDAY...ANOTHER ROUND OF CONVECTION SHOULD DEVELOP...HOWEVER COVERAGE SHOULD BE MUCH MORE ISOLATED DUE TO THE FACT THAT A MID- LEVEL LOW PRESSURE SYSTEM CURRENTLY NEARBY WILL BE FARTHER WEST INTO MEXICO...SO HAVE NOT INCLUDED THE CONVECTION INTO THE TAFS. WINDS WILL BE MODERATE FROM THE EAST. && .PREV DISCUSSION... /ISSUED 240 PM CDT MON SEP 2 2013/ SHORT TERM /NOW THROUGH TUESDAY NIGHT/...A WEAK CLOSED LOW ON THE PERIPHERY OF THE HIGH PRESSURE ALONG THE COAST OF TEXAS WILL CONTINUE TO MIGRATE SOUTHWESTWARD INTO MEXICO TODAY. THIS UPPER LEVEL SYSTEM WILL PRODUCE ISOLATED TO SCATTERED SHOWERS THROUGH THE REMAINDER OF THE AFTERNOON ALONG THE COAST. THE MAIN LOCATIONS THAT WILL BE IMPACTED WILL BE CAMERON...WILLACY AND KENEDY WITH RAINFALL TOTALS OF LESS THAN A QUARTER OF AN INCH. THE SOUTHERLY WINDS WILL DECOUPLE TONIGHT WITH SHOWER ACTIVITY DIMINISHING BEFORE MIDNIGHT. TONIGHT'S LOW TEMPERATURE WILL BE IN THE MID TO UPPER 70S ACROSS THE CWA. TUESDAY...AS THE CLOSED LOW MIGRATES SOUTHWESTWARD THE WINDS BECOME MORE EASTERLY THROUGH THE DAY WHICH WILL PULL MORE OF THE GULF MOISTURE INTO THE AREA INCREASING RH VALUES UP TO 60 PERCENT BETWEEN 1000 TO 500 MB LAYER ACROSS MUCH OF THE CWA. EXPECT MORE SHOWER ACTIVITY INTO TOMORROW STARTING IN THE MID MORNING HOURS AS THE SEA BREEZE MOVES INLAND. THIS ACTIVITY WILL MOVE WESTWARD DURING THE DAY. HIGH TEMPERATURES WILL INCREASE INTO THE TRIPLE DIGITS WEST OF HWY 281 TUESDAY AND NEAR THE UPPER 90S ALONG THE COAST. CHANCES OF RAIN DIMINISH BY TUESDAY EVENING. LONG TERM /WEDNESDAY THROUGH MONDAY/...THE LARGE SCALE SYNOPTIC PATTERN ON WEDNESDAY WILL FEATURE PERSISTENT H5 RIDGING OVER THE SOUTHERN HIGH PLAINS AND SOUTHWEST UNITED STATES...WITH A MORE ACTIVE PATTERN OF TROUGHS MOVING ACROSS CANADA OVER THE TOP OF THE RIDGE AND THEN DESCENDING INTO AND THROUGH PORTIONS OF THE NORTH EAST UNITED STATES. SURFACE HIGH PRESSURE UNDER AND DOWN STREAM OF THE RIDGE WILL MOST OFTEN EXTEND INTO THE NORTH GULF AND INFLUENCE THE LOCAL WEATHER PATTERN. BY WEDNESDAY...A TROPICAL WAVE EMERGING INTO AND MOVING WEST OVER THE BAY OF CAMPECHE FROM THE YUCATAN PENINSULA WILL BRING DEEPER TROPICAL MOISTURE INTO THE PICTURE... BRINGING BETTER CHANCES FOR SHOWERS TO DEEP SOUTH TEXAS AND THE RIO GRANDE VALLEY WEDNESDAY THROUGH THE WEEKEND...BUT MAINLY FOR THE MARINE AND COASTAL AREAS. THE ENVIRONMENT WILL BE SOMEWHAT CONDUCIVE FOR INTENSIFICATION OF THE FEATURE...AND THE HURRICANE CENTER MENTIONS IN THEIR TROPICAL WEATHER OUTLOOK A 30 PERCENT CHANCE FOR FURTHER DEVELOPMENT OF THE WAVE THROUGH THE NEXT FIVE DAYS. THE INHERITED FORECAST WAS ON TRACK...THEREFORE...NO SIGNIFICANT CHANGES WERE NEEDED TO CURRENT THINKING. DID FRESHEN UP THE PACKAGE BY BLENDING IN THE CURRENT 12Z GFS RUN HOWEVER. OVERALL...THE ECMWF AND GFS SEEM TO BE IN GOOD AGREEMENT. THUS...CONFIDENCE IS GOOD TO VERY GOOD. THE ONLY MINOR MODEL DIFFERENCE COULD BE THAT THE OLDER ECMWF RUN IS A LITTLE WETTER FRIDAY AND SATURDAY...BY 10 PERCENT OR SO...SIMILAR TO YESTERDAY. THE GFS REFLECTED WARMER HIGH TEMPS FROM THURSDAY ON...AND THOSE NUMBERS WERE TRIMMED BY A COUPLE OF DEGREES AND ARE A COMPROMISE BETWEEN THE GFS AND ECMWF. OTHERWISE MOST PARAMETERS REMAIN CLOSE TO GUIDANCE. MARINE... NOW THROUGH TUESDAY NIGHT...HIGH PRESSURE OVER THE GULF WATERS WILL KEEP A SOUTHERLY FLOW FOR THE REST OF THE EVENING AND INTO EARLY MORNING TUESDAY. ALOFT...AN UPPER LEVEL LOW MIGRATES SOUTHWESTWARD WHICH WILL ENHANCE ISOLATED TO SCATTERED SHOWERS OVER THE GULF WATERS THROUGH THE NIGHT. WINDS WILL BECOME MORE WESTWARD TUESDAY AS THIS UPPER LEVEL SYSTEM MIGRATES WESTWARD KEEPING THE AREA UNDER A MORE EASTERLY FLOW. THIS EAST WINDS WILL BE VERY LIGHT TO MODERATE DURING THE DAY KEEPING THE SEAS NEAR 2 FEET OR LESS. WEDNESDAY THROUGH SATURDAY...BROAD HIGH PRESSURE OVER THE NORTH AND WEST GULF WILL RESULT IN LOW TO MODERATE SEAS AND LIGHT TO MODERATE EAST TO SOUTHEAST WINDS. SCATTERED SHOWERS AND A FEW THUNDERSTORMS WILL DEVELOP WEDNESDAY AND THURSDAY AS A TROPICAL WAVE MOVING FROM EAST TO WEST ACROSS THE SOUTHWEST GULF PROVIDES DEEPER MOISTURE. UNSETTLED WEATHER WILL CONTINUE OFFSHORE TO THE SOUTHEAST AND SOUTH FRIDAY AND SATURDAY...WITH SHOWERS AND TSTMS MOVING INTO THE LOWER TEXAS COASTAL MARINE AREAS...EVEN AS THE TROPICAL WAVE MOVES ASHORE ALONG THE COAST OF MEXICO. THE NHC HAS GIVEN THE WAVE A MEDIUM...30 PERCENT...CHANCE OF DEVELOPING INTO A TROPICAL CYCLONE IN THE NEXT 5 DAYS AS IT EMERGES INTO AND CROSSES THE SOUTHWEST GULF. && .BRO WATCHES/WARNINGS/ADVISORIES...NONE. && THIS PRODUCT IS ALSO AVAILABLE ON THE WEB AT: HTTP://WEATHER.GOV/RGV
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BROWNSVILLE TX 606 AM CDT MON SEP 2 2013 TXZ248>257-031200- ZAPATA-JIM HOGG-BROOKS-KENEDY-STARR-HIDALGO-INLAND WILLACY- INLAND CAMERON-COASTAL WILLACY-COASTAL CAMERON- 606 AM CDT MON SEP 2 2013 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...TUESDAY THROUGH SUNDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. GMZ130-132-135-150-155-170-175-031200- LAGUNA MADRE FROM THE PORT OF BROWNSVILLE TO THE ARROYO COLORADO- LAGUNA MADRE FROM THE ARROYO COLORADO TO 5 NM NORTH OF PORT MANSFIELD TX- LAGUNA MADRE FROM 5 NM NORTH OF PORT MANSFIELD TO BAFFIN BAY TX- COASTAL WATERS FROM PORT MANSFIELD TO THE RIO GRANDE OUT 20 NM- COASTAL WATERS FROM BAFFIN BAY TO PORT MANSFIELD OUT 20 NM- WATERS FROM PORT MANSFIELD TO THE RIO GRANDE EXTENDING FROM 20 TO 60 NM- WATERS FROM BAFFIN BAY TO PORT MANSFIELD EXTENDING FROM 20 TO 60 NM- 606 AM CDT MON SEP 2 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE GULF OF MEXICO AND THE LAGUNA MADRE. .DAY ONE...TODAY AND TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. THE APPROACH OF A TROPICAL LOW PRESSURE TROUGH TO PRODUCE SHOWERS AND THUNDERSTORMS WEDNESDAY THROUGH FRIDAY. CONDITIONS COULD BECOME CONDUCIVE FOR TROPICAL FUNNEL OR WATERSPOUT FORMATION. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BROWNSVILLE TX 510 PM CDT MON SEP 2 2013 TXZ248-022245- ZAPATA- 510 PM CDT MON SEP 2 2013 ...SIGNIFICANT WEATHER ADVISORY FOR... NORTHERN ZAPATA COUNTY IN DEEP SOUTH TEXAS. UNTIL 545 PM CDT... AT 509 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A STRONG THUNDERSTORM...5 MILES NORTHWEST OF BUSTAMANTE...MOVING NORTHWEST AT 10 MPH. THIS STORM IS CAPABLE OF PRODUCING... PEA TO NICKLE SIZED HAIL. GUSTY WINDS OF 30 TO 40 MPH. TORRENTIAL RAINFALL RATES OF TWO TO FOUR INCHES PER HOUR. LOCATIONS IMPACTED INCLUDE... BUSTAMANTE. MONITOR NOAA WEATHER RADIO...LOCAL MEDIA...OR WEATHER.GOV FOR UPDATES. && 63
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BROWNSVILLE TX 549 PM CDT MON SEP 2 2013 TXZ248-249-022330- JIM HOGG-ZAPATA- 549 PM CDT MON SEP 2 2013 ...SIGNIFICANT WEATHER ADVISORY FOR... WESTERN JIM HOGG COUNTY IN DEEP SOUTH TEXAS. ZAPATA COUNTY IN DEEP SOUTH TEXAS. UNTIL 630 PM CDT... AT 548 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A STRONG THUNDERSTORM...9 MILES NORTHEAST OF BUSTAMANTE...MOVING WEST AT 10 MPH. THIS STORM IS CAPABLE OF PRODUCING... PEA TO NICKLE SIZED HAIL. GUSTY WINDS OF 30 TO 40 MPH. TORRENTIAL RAINFALL RATES OF TWO TO FOUR INCHES PER HOUR. LOCATIONS IMPACTED INCLUDE... ESCOBA. BUSTAMANTE. LAS PALMAS. ZAPATA. SAN YGNACIO. MONITOR NOAA WEATHER RADIO...LOCAL MEDIA...OR WEATHER.GOV FOR UPDATES. && 63
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
619 PM CDT MON SEP 02 2013
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0618 PM HAIL ZAPATA 26.89N 99.26W
09/02/2013 E0.88 INCH ZAPATA TX PUBLIC
PUBLIC REPORTED NICKEL-SIZE HAIL IN THE CITY OF ZAPATA
AT THE INTERSECTION OF LINCOLN AND 5TH STREET.
&&
EVENT NUMBER BRO1300032
TOMASELLISPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BROWNSVILLE TX 626 PM CDT MON SEP 2 2013 TXZ249-030015- JIM HOGG- 626 PM CDT MON SEP 2 2013 ...SIGNIFICANT WEATHER ADVISORY FOR... JIM HOGG COUNTY IN DEEP SOUTH TEXAS. UNTIL 715 PM CDT... AT 625 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A STRONG THUNDERSTORM...OVER WESTERN JIM HOGG COUNTY...MOVING WEST AT 10 MPH. THIS STORM IS CAPABLE OF PRODUCING... GUSTY WINDS OF 35 TO 45 MPH. TORRENTIAL RAINFALL RATES OF TWO TO FOUR INCHES PER HOUR. LOCATIONS IMPACTED INCLUDE... RANDADO. THOMPSONVILLE. MONITOR NOAA WEATHER RADIO...LOCAL MEDIA...OR WEATHER.GOV FOR UPDATES. && 63
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
634 PM CDT MON SEP 02 2013
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0631 PM HAIL ZAPATA 26.89N 99.26W
09/02/2013 E1.00 INCH ZAPATA TX PUBLIC
PUBLIC REPORTED QUARTER-SIZE HAIL AT THE INTERSECTION
OF LINCOLN AND 5TH IN DOWNTOWN ZAPATA. ALSO REPORTED
WINDS OF 65 MPH.
&&
EVENT NUMBER BRO1300033
TOMASELLISPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BROWNSVILLE TX 653 PM CDT MON SEP 2 2013 TXZ248-030030- ZAPATA- 653 PM CDT MON SEP 2 2013 ...SIGNIFICANT WEATHER ADVISORY FOR... SOUTHERN ZAPATA COUNTY IN DEEP SOUTH TEXAS. UNTIL 730 PM CDT... AT 652 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A STRONG THUNDERSTORM...NEAR ZAPATA...MOVING NORTHWEST AT 5 MPH. THIS STORM IS CAPABLE OF PRODUCING... PEA TO NICKEL SIZED HAIL. GUSTY WINDS OF 35 TO 45 MPH. TORRENTIAL RAINFALL RATES OF TWO TO FOUR INCHES PER HOUR. LOCATIONS IMPACTED INCLUDE... FALCON MESA. MONITOR NOAA WEATHER RADIO...LOCAL MEDIA...OR WEATHER.GOV FOR UPDATES. && 63
The Corpus Christi radar (KCRP), 200 km away, was scanning. The volume nearest the first event began at 01:28 UTC.
1 hail. Local standard time, as filed.
Public reported quarter size hail at the intersection of Lincoln and 5th in downtown Zapata. Also reported winds of 65 mph (estimated).
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2013Every state in 2013This day in weather historyWarnings in Texas, September 2013
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: 477682.