Outer bands of convection, along the far western periphery of a central Gulf of Mexico tropical wave, moved across the region. A line of late afternoon thunderstorms moved through Washington County and produced strong down burst winds that downed numerous trees northeast of Brenham.
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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 HGX wrote it up.
Outer bands of convection, along the far western periphery of a central Gulf of Mexico tropical wave, moved across the region. A line of late afternoon thunderstorms moved through Washington County and produced strong down burst winds that downed numerous trees northeast of Brenham.
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 Houston/Galveston, TX wrote its last area forecast discussion before the first event at Aug 10, 2:53 PM CST, 1 hour 57 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 353 PM CDT SAT AUG 10 2013 .DISCUSSION... A RAGGED LINE OF CONVECTION HAS FOCUSED ACROSS A NORTHEAST-TO- SOUTHWEST LINE FROM THE LAKE LIVINGSTON AREA ACROSS MONTGOMERY COUNTY AND INTO THE SOUTHWESTERN CWA. VORTS ROTATING AROUND THE WESTERN EDGE OF A CENTRAL GULF TROPICAL WAVE WILL INITIATE PERIODS OF SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS THROUGH TOMORROW. ANTICIPATING AN OVERNIGHT BREAK IN THIS ACTIVITY ACROSS THE INTERIOR ...WITH SCATTERED SHOWERS OVER THE GULF WATERS. DEPENDENT UPON THE TIMING OF THE WESTERN MOVEMENT OF THIS TROPICAL WAVE'S AXIS INTO THE WESTERN GULF (AND ENERGY MOVING AROUND ITS NORTHERN FLANK)...WILL HAVE THE HIGHEST CHANCE FOR EARLY SUNDAY CONVECTION FOCUSED ALONG THE SOUTHERN TIER COUNTIES/LOCAL BAYS-GULF WATERS. BACKGROUND CONDITIONS OF HIGH MOISTURE AND RELATIVELY LOWER CONVECTIVE TEMPERATURES...WITH INCREASING REGIONAL PVA FROM THESE ENERGY LOBES ADVANCING ONSHORE OVER THE NEXT 12-24 HOURS...WILL REMAIN CONDUCIVE TO RE-DEVELOPING NORTHERN-MOVING POCKETS OF RAIN/STORMS. THICK OVERCAST AND MORE DAMP CONDITIONS OVER THE SOUTHERN HALF OF THE FORECAST AREA WILL REGULATE MAXIMUM TEMPERATURE READINGS TO THE UPPER 80S (COAST) TO LOWER 90S (JUST INLAND). ENSEMBLE MEMBERS ALL AGREE THAT THE TROPICAL WAVE AXIS WILL BE INLAND ACROSS NORTHERN MEXICO BY EARLY MONDAY MORNING...ESSENTIALLY NILLING ALL RAIN CHANCES FOR A FEW DAYS. SOUTHERN PLAINS RIDGING REMAINS IN PLAY ACROSS THE STATE WITH EARLY WEEK WEATHER FEELING MUCH LIKE IT DID TO END THIS PAST WORK WEEK...HOT AND HUMID. CERTAINLY NOT A NEWS FLASH FOR MID-AUGUST...BUT THIS MORE OPPRESSIVE WEATHER WILL FEEL EVEN MORE SO DUE TO A RESIDENT 1.8-1.9 PWAT AIR MASS. PARTLY CLOUDY SKIES AND THE HIGH ANGLE SUN WILL HAVE INTERIOR PM TEMP READINGS AGAIN PEAKING IN THE UPPER 90S TO LOWER 100S (AMOUNT OF CLOUD COVER MY TEMPER MANY ON THE 'COOLER' SIDE OF 100F). AS OF NOW...BOTH INTERIOR AND COASTAL HEAT INDICES WILL REMAIN IN THE 103-106F RANGE MON-TUE BUT AMBIENT TEMPERATURES WARMING A FEW MORE DEGREES (DUE TO A SLOW-DEVELOPING CU DECK) COULD ALLOW NEAR COASTAL COMMUNITIES TO PEAK OUT NEAR 110 F. AN EVOLVING UPPER TROUGH OVER THE EASTERN CONUS WILL AID IN PUSHING IN A WEAK BACKDOOR BOUNDARY INTO THE NORTHEASTERN CWA WEDNESDAY... INCREASING POPS BOTH WEDNESDAY AND THURSDAY. HIGHER MOISTURE AND BETTER LOW LEVEL FOCUS...EITHER FROM THE SYNOPTIC (NEAR) STATIONARY BOUNDARY OR FROM NE'ERN TX STORM OUTFLOW...WILL HAVE THE TARGET DAY FOR THE MOST WIDESPREAD CONVECTION OCCURRING DURING THE DAY THURSDAY. A DRIER AIR MASS LAGGING BEHIND THIS FRONT WILL FILTER IN NEXT WEEKEND. THUS...LINGERING RAIN CHANCES FRIDAY WITH VERY LOW RAIN CHANCES BY SATURDAY. MORE OVERCAST WILL KEEP MANY INTERIOR MAX TEMPERATURE READINGS TO THE NEAR-NORMAL MIDDLE 90S...OVERNIGHT MIN TEMPERATURES WILL BE RELATIVELY COOLER WITH NEAR SUNRISE LOW-MID 70S AWAY FROM THE COAST. 31 && .MARINE... A WEAK PRESSURE GRADIENT WILL REMAIN IN PLACE THROUGH EARLY NEXT WEEK. A TYPICAL SUMMER PATTERN IS IN PLACE WITH A WEAK LAND BREEZE AT NIGHT ALLOWING A S-SW FLOW OVERNIGHT. THIS FLOW WILL TRANSITION TO THE S-SE DURING THE DAY AS A SEA BREEZE MOVES INLAND. A WEAK TROPICAL WAVE WILL BRING A CONTINUED CHANCE OF SHOWERS AND THUNDERSTORMS ON SUNDAY AND A SLIGHT CHANCE ON MONDAY. A WEAK COLD FRONT WILL APPROACH THE COAST LATE THURSDAY OR FRIDAY. 43 && .PRELIMINARY POINT TEMPS/POPS... COLLEGE STATION (CLL) 78 99 77 99 78 / 20 20 10 20 10 HOUSTON (IAH) 78 93 77 96 76 / 20 40 10 20 10 GALVESTON (GLS) 83 88 81 92 82 / 30 40 20 20 10 && .HGX WATCHES/WARNINGS/ADVISORIES... TX...NONE. GM...NONE. && DISCUSSION...31/43
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 513 AM CDT SAT AUG 10 2013 TXZ163-164-176>179-195>200-210>214-226-227-235>238-111015- AUSTIN-BRAZORIA-BRAZOS-BURLESON-CHAMBERS-COLORADO-FORT BEND- GALVESTON-GRIMES-HARRIS-HOUSTON-JACKSON-LIBERTY-MADISON-MATAGORDA- MONTGOMERY-POLK-SAN JACINTO-TRINITY-WALKER-WALLER-WASHINGTON- WHARTON- 513 AM CDT SAT AUG 10 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST TEXAS. .DAY ONE...TODAY AND TONIGHT HEAT INDEX VALUES THIS AFTERNOON ARE EXPECTED TO REACH THE 100 TO 105 RANGE. MOST AREAS ALONG THE COAST WILL HAVE A HEAT INDEX BELOW 105 SO THE HEAT ADVISORY HAS BEEN ALLOWED TO EXPIRE. SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED TODAY WHICH COULD PRODUCE BRIEF HEAVY RAINFALL BUT STORMS ARE NOT EXPECTED TO BE SEVERE. OTHERWISE STRONGER STORMS MAY PRODUCE FREQUENT LIGHTNING AND GUSTY WINDS. THE ACTIVITY SHOULD END LATER THIS EVENING ONCE DAY TIME HEATING IS LOST. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME. SCATTERED SHOWERS AND A FEW THUNDERSTORMS ARE EXPECTED AGAIN ON SUNDAY. BRIEF HEAVY RAINFALL MAY BE POSSIBLE AGAIN. RAIN CHANCES SHOULD DECREASE MONDAY THROUGH THE MIDDLE OF THE WEEK AS UPPER LEVEL HIGH PRESSURE BUILDS OVER TEXAS AGAIN. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 206 PM CDT SAT AUG 10 2013 TXZ210-211-101945- COLORADO-AUSTIN- 206 PM CDT SAT AUG 10 2013 ...SIGNIFICANT WEATHER ADVISORY FOR EASTERN COLORADO AND AUSTIN COUNTIES UNTIL 245 PM CDT... AT 204 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR BELLVILLE...MOVING SOUTHWEST AT 10 MPH. HAIL UP TO THE SIZE OF PEAS AND WIND GUSTS UP TO 40 MPH WILL BE POSSIBLE WITH THIS STORM. LOCATIONS IMPACTED INCLUDE... SEALY...BELLVILLE...EAGLE LAKE...SAN FELIPE AND CAT SPRING. LAT...LON 2957 9636 2978 9652 2998 9623 2978 9608 TIME...MOT...LOC 1904Z 205DEG 6KT 2987 9619
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
211 PM CDT SAT AUG 10 2013
TXZ179-200-101945-
POLK-LIBERTY-
211 PM CDT SAT AUG 10 2013
...SIGNIFICANT WEATHER ADVISORY FOR NORTH CENTRAL LIBERTY AND
SOUTHEASTERN POLK COUNTIES UNTIL 245 PM CDT...
AT 210 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM 15 MILES SOUTHEAST OF GOODRICH...OR 19 MILES
SOUTHEAST OF LIVINGSTON...MOVING SOUTHWEST AT 15 TO 20 MPH.
HAIL UP TO THE SIZE OF PEAS AND WIND GUSTS UP TO 40 MPH WILL BE
POSSIBLE WITH THIS STORM.
LOCATIONS IMPACTED INCLUDE...
RYE...ROMAYOR AND SEGNO.
LAT...LON 3049 9460 3049 9473 3037 9469 3026 9477
3034 9494 3066 9471 3059 9456 3056 9455
TIME...MOT...LOC 1910Z 046DEG 18KT 3049 9472SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 310 PM CDT SAT AUG 10 2013 TXZ178-179-199-200-213-102100- POLK-HARRIS-LIBERTY-SAN JACINTO-MONTGOMERY- 310 PM CDT SAT AUG 10 2013 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN LIBERTY... MONTGOMERY...NORTH CENTRAL HARRIS...SOUTHERN SAN JACINTO AND SOUTH CENTRAL POLK COUNTIES UNTIL 400 PM CDT... AT 307 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A COUPLE OF STRONG THUNDERSTORMS NEAR WOODLOCH AND NORTH OF CLEVELAND...MOVING SOUTHWEST AT 20 MPH. WIND GUSTS UP TO 40 MPH WILL BE POSSIBLE WITH THIS STORM. LOCATIONS IMPACTED INCLUDE... CONROE...CLEVELAND...SPRING...THE WOODLANDS...OAK RIDGE NORTH... SHEPHERD...PANORAMA VILLAGE...SHENANDOAH...SPLENDORA...PATTON VILLAGE...ROMAN FOREST...WOODBRANCH...CUT AND SHOOT...PLUM GROVE... NORTH CLEVELAND...WOODLOCH...SPLASHTOWN...PORTER HEIGHTS...THE WOODLANDS PAVILLION AND CHATEAU WOODS. PRECAUTIONARY/PREPAREDNESS ACTIONS... FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE SHELTER INSIDE A BUILDING OR VEHICLE. THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE. && LAT...LON 2996 9547 3030 9573 3058 9486 3042 9471 TIME...MOT...LOC 2007Z 050DEG 14KT 3026 9538 PB
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
507 PM CDT SAT AUG 10 2013
TXZ195-197-102300-
BURLESON-WASHINGTON-
507 PM CDT SAT AUG 10 2013
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN BURLESON AND WASHINGTON
COUNTIES UNTIL 600 PM CDT...
AT 505 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A CLUSTER OF STRONG THUNDERSTORMS CENTERED NEAR SNOOK...OR 15 MILES
SOUTHWEST OF COLLEGE STATION...MOVING SOUTHWEST AT 30 MPH.
HAIL UP TO THE SIZE OF PEAS AND WIND GUSTS AROUND 40 MPH WILL BE
POSSIBLE WITH THESE STORMS.
LOCATIONS IMPACTED INCLUDE...
SOMERVILLE...SNOOK...BURTON...LAKE SOMERVILLE DAM...DEANVILLE...
QUARRY...LYONS AND INDEPENDENCE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.
&&
LAT...LON 3052 9641 3030 9624 3006 9662 3015 9665
3016 9669 3014 9677 3016 9679 3020 9674
3025 9673 3025 9669 3029 9664 3032 9669
3032 9674 3039 9679 3044 9687
TIME...MOT...LOC 2205Z 065DEG 29KT 3041 9644
LWThe Ft Hood radar (KGRK), 115 km away, was scanning. The volume nearest the first event began at 22:50 UTC.
1 thunderstorm wind. Local standard time, as filed.
There were numerous trees reported downed around the FM 390 East and Tappe Road area.
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, August 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: 459257.