Between 2 and 4 inches of rain fell during the mid and late afternoon hours across central and southwest Webb county. Flooding was observed in the city of Laredo.
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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 CRP wrote it up.
Between 2 and 4 inches of rain fell during the mid and late afternoon hours across central and southwest Webb county. Flooding was observed in the city of Laredo.
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 Corpus Christi, TX wrote its last area forecast discussion before the first event at Aug 17, 2:51 PM CST, 29 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE CORPUS CHRISTI TX 351 PM CDT SUN AUG 17 2008 .SHORT TERM (TONIGHT THROUGH MONDAY NIGHT)...A WEAK UPPER LOW WILL COMBINE WITH COPIOUS MSTR AND INSTABILITY TO GENERATE CONVECTION OVR PRIMARILY THE ERN CWFA/MSA AFT 06Z MON. THE GFS/NAM CONTINUE TO PROG A MUCH STRONGER UPPER LOW TO ENTER THE REGION FROM THE NORTH DRG THE PERIOD...THEN BECOME QUASI-STATIONARY. THE GFS PROGS A CORRESPONDING SFC TROUGH TO DEVELOP OVER THE CWFA MONDAY AFTN...YET THE NAM WAITS UNTIL MONDAY NGT. 18Z PROXIMITY SOUNDINGS INDICATE COPIOUS MSTR ACRS THE REGION...WHICH WL CONTINUE. INCREASING UPPER AND SFC FORCING WL CONTRIBUTE TO CONVECTION DRG THE PERIOD. WIDESPREAD CONVECTION MAY OCCUR MONDAY NGT...YET FCSTG NUMEROUS CONVECTION AT THIS TIME. MOST RECENT FFG VALUES SUGGEST FLOODING WITH 2.5-3 INCH/HR RAINFALL RATES. THESE RATES HAVE BEEN GENERALLY ISOLATED ACRS THE CWFA TDA. DO NOT EXPECT MORE WIDESPREAD HEAVY RAINFALL UNTIL MONDAY LATE AFTN/EVENING AT THE EARLIEST...WHEN GREATER UPPER/SFC FORCING WL COMMENCE AND CONTRIBUTE TO PERSISTENT CONVECTION. THUS...WL NOT ISSUE AN FFA AT THIS TIME. && .AVIATION...PREDOMINATE MVFR CEILINGS EXPECTED LATER TNGT THROUGH MONDAY NGT OWING TO COPIOUS MSTR/INCREASING SFC AND UPPER FORCING. IFR CONDITIONS ARE EXPECTED NEAR CONVECTION. && .MARINE...EXPECT WIND TO REMAIN ONSHORE AND INCREASE SOMEWHAT DRG THE PERIOD IN RESPONSE TO THE FOREGOING UPPER SYSTEM/DEVELOPING SFC TROUGH OVR LAND. YET...DO NOT EXPECT SCA CONDITIONS BEYOND 2 HOURS...CONSISTENT WITH THE WAVEWATCH SOLN. && .LONG TERM (TUESDAY THROUGH SUNDAY)...THE MID/UPPER LOW WILL MEANDER ACROSS TX TUE THROUGH WED MAINTAINING A WET PATTERN. TUE LOOKS TO BE THE WETTEST AS A SHORT WAVE ROTATES AROUND THE UPPER LOW AND ACROSS S TX. THE GFS IS PROGING A SFC LOW TO DVLP TUE MOVG FROM THE SW CWA TO THE NE CWA THRU OUT THE DAY. IN RESPONSE TO THIS THE PRECIP SHIFTS NE THROUGH THE DAY WITH THE HIGHEST QPF VALUES OVER THE ERN CWA. THE ECM ALSO SHOWS A SFC TROF DVLPG AND MOVG NWD ACROSS THE CWA BUT IS NOT AS STRONG AS THE GFS. THIS SOLN ALSO PUTS PRECIP ACROSS THE ENTIRE CWA. THE NAM ALSO SHOWS A SFC TROF...BUT DOES NOT CLOSE IT OFF AND KEEPS IT FARTHER W OVR MEX...THUS KEEPING THE HIGHER QPF OVR THE W CWA. HAVE LEANED TOWARD THE GFS SOLN WITH THE WIND FIELDS BUT HAVE BROAD BRUSHED LIKELY POPS ACROSS S TX WITH CHC POPS OVR THE WATERS. ON WED...THE GFS SHOWS SOME DRYING AS THE SFC LOW AND CORRESPONDING SHORT WAVE MOVE OFF TO THE NE...WHILE THE OTHER MODELS TEND TO KEEP PRECIP ACROSS S TX ALTHOUGH QPF VALUES ARE LOWER. AS A COMPROMISE...WENT WITH LIKELY ACROSS THE NE CWA TO ACCOUNT FOR THE EXITING SHORT WAVE BUT MAINTAINED HIGH END CHC POPS ACROSS MUCH OF THE REST OF THE CWA DUE TO THE MAIN UPPER LOW STILL IN PLACE ALONG WITH LINGERING MOISTURE AND INSTABILITY. AM SHOWING SLIGHTLY LOWER POPS FOR BOTH TUE NIGHT AND WED NIGHT DUE TO LOSS OF DAYTIME HEATING/INCREASING CIN. BY THU...THE MAIN UPPER LOW IS PROGD TO LIFT NE...HOWEVER BOTH THE GFS AND ECMWF ARE SHOWING A SHEAR AXIS REMAINING IN PLACE ACROSS CENTRAL TX AS HIGH PRESSURE BLDS IN ACROSS BOTH W TX AND E TX/LA. MID AND UPPER LVLS DRY BUT LOW LEVEL MOISTURE STILL LOOKS SUFFICIENT FOR SCT PRECIP THU-SAT TIME FRAME...MAINLY ALONG AFTERNOON SEA BREEZE. THE GFS SHOWS THE HIGH PRESSURE BLDG IN FROM THE E WITH PRECIP CHCS DWINDLING FOR SUN. AS FOR TEMPS...MX TEMPS WILL REMAIN BELOW NORM THE FIRST HALF OF THE WEEK THEN RETURNING TO NORM THE LATTER HALF AS THE UPPER LEVELS DRY OUT. && .PRELIMINARY POINT TEMPS/POPS... CORPUS CHRISTI 75 85 76 87 73 / 50 70 70 70 50 VICTORIA 73 85 73 85 72 / 50 70 70 70 50 LAREDO 75 90 76 89 75 / 60 70 70 70 50 ALICE 73 86 74 89 73 / 40 70 70 70 50 ROCKPORT 76 83 77 87 75 / 50 70 70 70 50 COTULLA 73 86 73 89 71 / 60 70 70 70 50 KINGSVILLE 74 85 75 89 73 / 50 70 70 70 50 NAVY CORPUS 77 83 78 87 77 / 50 70 70 70 50 && .CRP WATCHES/WARNINGS/ADVISORIES... TX...NONE. GM...NONE. && WC/87...SHORT TERM TE/81...LONG TERM
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE CORPUS CHRISTI TX 527 AM CDT SUN AUG 17 2008 GMZ230-235-250-255-270-275-TXZ229>234-239>247-181030- BAYS AND WATERWAYS FROM BAFFIN BAY TO PORT ARANSAS- BAYS AND WATERWAYS FROM PORT ARANSAS TO PORT OCONNOR- COASTAL WATERS BAFFIN BAY TO PORT ARANSAS OUT 20 NM- COASTAL WATERS PORT ARANSAS TO MATAGORDA SHIP CHANNEL OUT 20 NM- WATERS BAFFIN BAY TO PORT ARANSAS 20 TO 60 NM- WATERS PORT ARANSAS TO MATAGORDA SHIP CHANNEL 20 TO 60 NM- LA SALLE-MCMULLEN-LIVE OAK-BEE-GOLIAD-VICTORIA-WEBB-DUVAL- JIM WELLS-KLEBERG-NUECES-SAN PATRICIO-ARANSAS-REFUGIO-CALHOUN- 527 AM CDT SUN AUG 17 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH TEXAS AND THE MIDDLE TEXAS COASTAL WATERS. .DAY ONE...TODAY AND TONIGHT SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS WILL PERSIST ACROSS SOUTH TEXAS TODAY THROUGH THIS EVENING. THE STRONGER STORMS WILL BE CAPABLE OF PRODUCING CLOUD TO GROUND LIGHTNING...LOCALIZED HEAVY RAINFALL AND WIND GUSTS OF 40 MPH. AREAS OF URBAN STREET FLOODING CAN OCCUR WHERE THE HEAVIEST RAINS DO OCCUR. THE POTENTIAL EXISTS FOR ONE OR TWO STORMS TO BRIEFLY BECOME SEVERE WITH A THREAT OF DOWNBURST WINDS THIS AFTERNOON WITH THE INCREASED MOISTURE AND ATMOSPHERIC INSTABILITY. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS WILL CONTINUE ACROSS SOUTH TEXAS THROUGH WEDNESDAY. WIDESPREAD HEAVY RAIN AND FLOODING ARE LIKELY AS A RESULT. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED. SCC/TM
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CORPUS CHRISTI TX 258 PM CDT SUN AUG 17 2008 TXZ239-172030- WEBB- 258 PM CDT SUN AUG 17 2008 ...A STRONG THUNDERSTORM WAS AFFECTING WEBB COUNTY... AT 255 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 13 MILES NORTH OF AGUILARES...OR 20 MILES NORTHWEST OF OILTON. THIS STORM WAS NEARLY STATIONARY. PEA SIZE HAIL...AND WINDS 30 TO 40 MPH ARE EXPECTED WITH THIS STORM. 87
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CORPUS CHRISTI TX 406 PM CDT SUN AUG 17 2008 TXZ239-172200- WEBB- 406 PM CDT SUN AUG 17 2008 ...A STRONG THUNDERSTORM WAS AFFECTING WEBB COUNTY... AT 403 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A LINE OF STRONG THUNDERSTORMS 5 MILES SOUTHEAST OF DOWNTOWN LAREDO TO 19 MILES SOUTHEAST OF DOWNTOWN LAREDO...DRIFTING SLOWLY NORTHWEST. PEA SIZE HAIL...30 TO 40 MPH WINDS...EXCESSIVE RAINFALL AND FREQUENT CLOUD TO GROUND LIGHTNING ARE EXPECTED WITH THIS STORM. JR
The Laughlin AFB radar (KDFX), 199 km away, was scanning. The volume nearest the first event began at 21:17 UTC.
1 flash flood. Local standard time, as filed.
Flooding of low lying streets and poor drainage areas occurred on several city streets in the city of Laredo, as well as a few low water crossings. The Laredo Fire Department reported several vehicles stalled in high water as well a three high water rescues.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2008Every state in 2008This day in weather historyWarnings in Texas, August 2008
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: 132851.