11 thunderstorm wind, 1 tornado, as filed by the National Weather Service.
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 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 Austin/San Antonio, TX wrote its last area forecast discussion before the first event at Aug 11, 9:20 AM CST, 3 hours 40 minutes earlier.
SOUTH CENTRAL TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 1020 AM CDT MON AUG 11 2003 SHORT WAVE MOVING SOUTHWARD ACROSS NORTH TEXAS THIS MORNING WILL CLIP EASTERN PORTIONS OF CWA THIS AFTERNOON. CURRENT FORECAST HANDLES THIS WELL WITH PRECIPITATION CHANCES...CAPES MOVING UP TO BETWEEN 1500 AND 2000 OVER EASTERN PORTIONS...SO POSSIBLY SEVERE LOOKS GOOD. SUBSIDENT NORTHEAST FLOW ALOFT ALONG RIO GRANDE PLAINS WILL ALLOW TEMPERATURES TO AGAIN BE AROUND THE CENTURY MARK THIS AFTERNOON BUT ADDED MOISTURE AND LACK OF WESTERLIES IN THE LOWER LEVELS WILL PROBABLY MAKE HILL COUNTRY TEMPS A LITTLE COOLER ON HIGHS. 02/18/KW MOSTLY CLEAR ACROSS SCNTRL TX EARLY THIS MORNING. THE MAIN FORECAST ISSUES ARE TEMPS...POPS...AND SEVERE THREAT THIS WEEK. THE 00Z NCEP MODELS ARE IN GOOD AGREEMENT CONSIDERING THAT MESOSCALE EFFECTS WILL BE A BIG PLAYER ALL WEEK. OVERALL...WILL GO WITH A BLEND SOLUTION OF THE GFS/CANADIAN/NOGAPS THROUGH DAY 5...THEN TREND IN THE MEDIUM RANGE MODELS AFTER THAT. LIKEWISE...WILL BLEND MAV/FWC GUIDANCE AND TREND WITH MEX FOR DAYS 5-7. REALLY INTERESTING UPPER LEVEL PATTERN THIS WEEK AS THE TOP OF THE WRN RIDGE AND THE BOTTOM OF THE ERN TROUGH BREAK OFF AND FUJIWARA AROUND EACH OTHER IN THE PLAINS. THE NET FOR CNTRL TX IS THE UPPER LOW LOWERING HEIGHTS AND INCREASING LIFT (HENCE CLOUDS AND RAIN CHANCES)...THUS LOWER TEMPS AND HIGHER POPS. THE BEST BETS WILL BE WHEN PW AND JET STREAK FORCING ARE BEST...TODAY AND THU. ANOTHER LARGE SLUG OF HIGH PW AIR IS POISED TO MOVE IN FROM THE GULF OVER THE WEEKEND. WV IMAGERY WITH THIS HIGH PW AIR CURRENTLY OVER THE FL STRAITS AND THE WWRD MOVEMENT OF THE ATLANTIC SUBTROPICAL RIDGE TO PROVIDE THE ERLY FLOW TO MOVE THE SLUG FIT IN WITH THE MODEL PROJECTIONS. THIS COULD MAINTAIN HIGH POPS THROUGH NEXT WEEKEND. WILL MENTION ISOLD SEVERE IN THE FORECAST TODAY. AGREE WITH SPC OUTLOOK...BUT ERN TX SEEMS MORE IN THE THREAT AREA...AND STORMS WILL BE ISOLD IN COVERAGE TO BEGIN WITH. .EWX...NONE. 26/13 PRELIMS... AUS BB 096/073 092/070 090 333 DRT BB 100/077 094/072 090 233 SAT BB 096/074 092/070 090 233
TXZ171>173-183>194-202>209-217>225-228-121100- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 600 AM CDT MON AUG 11 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL TEXAS. .DAY ONE...TODAY. THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND EVENING ACROSS SOUTH CENTRAL TEXAS AND THE HILL COUNTRY. ANOTHER UPPER LEVEL DISTURBANCE IN THE NORTHERLY FLOW ALOFT WILL APPROACH THE REGION THIS AFTERNOON AND WILL COMBINE WITH DAYTIME HEATING TO TRIGGER ISOLATED SEVERE THUNDERSTORMS. THE PRIMARY THREATS WILL BE DAMAGING WINDS AND LARGE HAIL. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. THE CHANCE OF SHOWERS AND THUNDERSTORMS WILL CONTINUE THROUGH THE WEEK AND EXTEND INTO THE WEEKEND. THE BEST CHANCE OF SHOWERS AND THUNDERSTORMS THIS WEEK WILL BE ON THURSDAY WHEN DEEP TROPICAL MOISTURE OVERSPREADS THE REGION. HEAVY RAINFALL WILL BE THE PRIMARY THREAT FOR THURSDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED.
The national radar mosaic for the moment the first event began.
11 thunderstorm wind, 1 tornado. Local standard time, as filed.
A severe thunderstorm moved southward across northern Lee County and produced severe winds as it approached Lexington. The damaging winds knocked down several trees in the area.
A severe thunderstorm produced damaging winds that knocked down trees and blew over power lines in the New Braunfels area. Additional minor damage was reported to roofs of homes and outbuildings
Severe thunderstorms moving southward through eastern Fayette County produced damaging winds that blew down trees and power lines from Fayetteville to Schulenburg. Power was lost to nearly 1400 persons for several hours as a result of the storm. One man pumping gas at Schulenburg narrowly avoided injury when winds detached the roof from a store and it landed beside him.
A severe thunderstorm produced damaging winds as it approached Bastrop. The severe winds knocked down several trees.
Severe thunderstorm winds blew down power lines around the San Marcos, causing power outages for several hours.
A severe thunderstorm wind gust was measured at 54 knots at Randolph AFB as the winds knocked over trees near Universal City.
Severe thunderstorm winds struck just east of Castroville and moved southwestward through the town. Damage was first indicated approximately 2 miles east of Castroville, along the north side of US90, where 8 to 10 telephone poles had been snapped near the base. The estimated wind gusts at this point were between 80 to 100 miles per hour. The damage path was between one-quarter and one-half mile in width, with no indication of rotation or twisting. The storm continued to move toward the southwest where it damaged several mobile homes in the valley mobile home park along FM471. Much of the damage was minor, and confined to outbuildings. Numerous trees were damaged or uprooted, with limbs up to 8 inches in diameter snapped off. Several vehicle were also damaged. Wind gusts in this area were estimated in the 50 to 60 mile per hour range. As the storm continued southwestward into the Castroville area, it struck a little league baseball field complex north of the Castroville Airport. Here chain link fence was bent over in sections along the outfield fence line. Only the sections with plywood signs attached were damaged. The severe winds continued southwestward to the Airport, where they destroyed most of the The Fixed Base Operator hanger, and damaged or destroyed five aircraft and equipment housed inside hanger. Several adjacent hangers located at the airport received minor or no damage. Estimated damages from the downburst were $250,000 to aircraft, $100,000 to the hangars, and $500,000 to equipment.
Severe thunderstorm winds knocked over trees and blew down power lines in the LaGrange area.
The tornado touched down very near the Fixed Base Operator hanger, where rotation was noted in a path up to 30 yards wide. The damage path was in a northeast to southwest direction which was the same track of the straight line winds. This short lived tornado was estimated to have reached F1 intensity and was likely on the ground for only a few seconds. Several witnesses in adjacent hangers described the sound of a loud train as the tornado hit the airport. Four men narrowly escaped injury by ducking for cover between two couches as it struck.
Severe thunderstorm winds knocked over several trees just north of Gonzales
Severe thunderstorm wind gusts, measured by a co-operative observer at 80 knots, knocked over scores of trees from Shiner to west of Yoakum to Sweet Home.
Severe thunderstorm winds knocked over power lines from near Yoakum in western Lavaca County to Cuero.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2003Every state in 2003This day in weather historyThe tornado archive for Texas, 2003Warnings in Texas, August 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: 5376799, 5376800, 5376801, 5377559, 5377560, 5377561, 5377562, 5377564, 5377563, 5377632, 5369189, 5369190.