A couple of funnel clouds were sighted in Chambers County near outflow boundaries.
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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.
A couple of funnel clouds were sighted in Chambers County near outflow boundaries.
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 17, 1:01 PM CST, 2 hours 4 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 201 PM CDT FRI AUG 17 2012 .AVIATION... OUTFLOW FROM LBX/SGR AREA STORMS SPREADING EAST AND WILL BE COLLIDING WITH BAYBREEZE SHORTLY AND WITH THE SEABREEZE...EXPECT SCATTERED SHRA/TSRA TO CONTINUE AROUND THE METRO TERMINALS THIS AFTERNOON. -SHRA HAVE BEEN POPPING UP AND DISSIPATING AROUND THE BOUNDARY FROM NE OF CLL TO N OF 6R3. STILL EXPECT REDEVELOPMENT ALONG THE BOUNDARY LATE THIS AFTERNOON. OVERNIGHT DEBRIS CLOUDS DISSIPATING WITH LIGHT S-SW WINDS TOWARD MORNING. NEAR THE COAST MAY HAVE BACKING WINDS BRIEFLY AS AN AID TO DEVELOPING CU/SHRA THEN SCATTERED SHRA AND A FEW TSRA MAINLY SOUTH. 45 && .PREV DISCUSSION... /ISSUED 1054 AM CDT FRI AUG 17 2012/ UPDATE... SCATTERED SHOWERS CONTINUE TO POP UP ACROSS THE COASTAL COUNTIES THIS MORNING WITH THE BEST COVERAGE ACROSS CHAMBERS COUNTY. HAVE INCREASED POPS FOR MUCH OF THE REGION FOR THIS AFTERNOON DUE TO INCREASING MOISTURE ON THE MORNING SOUNDINGS AND A WEAK 500MB SHORTWAVE THAT LOOKS TO CROSS THE REGION THIS AFTERNOON. 4KM WRF AND LOCAL SPORT-WRF RUNS BOTH SUPPORT INCREASED COVERAGE ACROSS THE REGION THIS AFTERNOON AS WELL. WITH THE AMPLE SUNSHINE EARLY THIS MORNING MAX TEMPS STILL LOOK GOOD SO WILL NOT MAKE ANY CHANGES OTHER THAN THE POPS/WEATHER. 38 MARINE... WEST AND SOUTHWEST WINDS THIS MORNING SHOULD BE GIVING WAY TO SOUTHERLIES THIS AFTERNOON WITH THE NEARSHORE/BAYS INCREASING WIND SPEEDS. SCATTERED SHOWERS THIS MORNING WILL LIKELY WANE BY LATE AFTERNOON. 45 AVIATION... 15Z UPDATE OUT AND NOT MUCH IN THE WAY OF CHANGES YET BUT ANTICIPATE NEEDING TO ADD TEMPO UTS TAF IN THE 18Z PACKAGE FOR THE 20-24Z TIME FRAME DUE TO THE CLOSER PROXIMITY TO THE BOUNDARY NEAR LFK-PSN WITH A S/W APPROACHING AND NORTHWEST FLOW ALOFT. ANY STORMS THAT FORM WILL LIKELY TRACK SE AND MAY COLLIDE WITH THE SEABREEZE. MORE MOIST PROFILE EVIDENT OUTSIDE AND PER VIS SATELLITE...WILL BE WATCHING DEVELOPMENT AND MAY NEED TEMPO CONDITIONS CXO/IAH/HOU TERMINALS LATE THIS AFTERNOON AND EVENING. 45 && .PRELIMINARY POINT TEMPS/POPS... COLLEGE STATION (CLL) 99 78 94 75 91 / 30 30 50 40 60 HOUSTON (IAH) 96 78 93 77 90 / 40 20 40 20 60 GALVESTON (GLS) 93 84 90 83 89 / 40 20 30 20 60 && .HGX WATCHES/WARNINGS/ADVISORIES... TX...NONE. GM...NONE. && DISCUSSION...39 AVIATION/MARINE...45
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 555 AM CDT FRI AUG 17 2012 TXZ163-164-176>179-195>200-210>214-226-227-235>238-181100- 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- 555 AM CDT FRI AUG 17 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST TEXAS. .DAY ONE...TODAY AND TONIGHT TEMPERATURES WILL ONCE AGAIN WARM INTO THE MID AND UPPER 90S THIS AFTERNOON. THESE TEMPERATURES COUPLED WITH HIGH HUMIDITY LEVELS WILL FOSTER HEAT INDEX VALUES BETWEEN 103 AND 109 DEGREES TODAY. A WEAK UPPER LEVEL DISTURBANCE COUPLED WITH THE VERY WARM TEMPERATURES COULD YIELD A FEW THUNDERSTORMS. IF STORMS DEVELOP...THEY WILL HAVE THE POTENTIAL TO PRODUCE STRONG DAMAGING WINDS. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED SATURDAY AS MOISTURE LEVELS INCREASE AND AN UPPER LEVEL DISTURBANCE MOVES ACROSS THE REGION. SHOWERS AND THUNDERSTORMS WILL BECOME MORE NUMEROUS ON SUNDAY AS A WEAK COLD FRONT CROSSES THE REGION AND AN UPPER LEVEL TROUGH BUILDS INTO EAST TEXAS. SOME OF THE RAIN ON SUNDAY COULD BE LOCALLY HEAVY AT TIMES. RAINFALL TOTALS FOR THE WEEKEND WILL AVERAGE AROUND AN INCH WITH ISOLATED TOTALS BETWEEN 2 AND 4 INCHES. DRIER AIR WILL FILTER INTO SOUTHEAST TEXAS ON MONDAY BEHIND THE FRONT BUT THERE COULD BE ENOUGH LINGERING MOISTURE NEAR THE COAST TO KEEP RAIN CHANCES IN THE FORECAST THROUGH TUESDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED.
The Houston radar (KHGX), 55 km away, was scanning. The volume nearest the first event began at 21:06 UTC.
1 funnel cloud. Local standard time, as filed.
Two funnel clouds were sighted in association with slow east and northeast moving thunderstorms.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2012Every state in 2012This day in weather historyWarnings in Texas, August 2012
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: 392212.