An upper level shear zone across West Central Texas resulted in scattered showers and thunderstorms. The thunderstorms were slow moving, which resulted in isolated reports of flash flooding.
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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 SJT wrote it up.
An upper level shear zone across West Central Texas resulted in scattered showers and thunderstorms. The thunderstorms were slow moving, which resulted in isolated reports of flash flooding. In addition, an isolated damaging wind report was received near Llano State Park.
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 San Angelo, TX wrote its last area forecast discussion before the first event at Aug 18, 3:21 AM CST, 4 hours 35 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SAN ANGELO TX 421 AM CDT MON AUG 18 2014 .SHORT TERM... (Today and Tonight) A band of showers had developed from Sonora to San Angelo at 3 AM, associated with an upper level trough/shear zone. The NAM/GFS/Texas Tech WRF models all indicate scattered to numerous showers and thunderstorms in the shear zone, from the Concho Valley southward into this evening. Rain chances were increased today and high temperatures lowered into the upper 80s, in the vicinity of the upper trough. Farther north, along and north of the I-20 corridor, where less rainfall is expected, highs should be warmer in the lower to mid 90s. Showers and thunderstorm chances should decrease tonight as the upper trough is pushed slowly southwestward. The main weather threat will continue to be the same: localized street flooding due to slow moving storms in a semi-tropical atmosphere. The best areas for heavy rainfall will be mainly from the Concho Valley southward, though a few heavy bands may affect areas east to Brownwood, Brady, Junction and Mason. Strong gusty winds and dangerous lightning will also be possible. .LONG TERM... (Tuesday through Sunday) The forecast for the long term remains dry, with afternoon highs typical for August. Models indicate the upper ridge will continue to slowly shift east this week. As the upper ridge centers over the central Gulf states by late week, cooler air moving over West Central Texas, at 850mb, should help keep afternoon highs a few degrees below the 100 degrees mark for most areas through next weekend. && .PRELIMINARY POINT TEMPS/POPS... Abilene 94 72 95 72 97 / 20 10 10 5 5 San Angelo 90 72 95 72 96 / 50 20 10 5 5 Junction 90 73 93 72 93 / 50 30 10 5 5 && .SJT WATCHES/WARNINGS/ADVISORIES... NONE. && 04/Huber
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SAN ANGELO TX 514 AM CDT MON AUG 18 2014 TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139- 140-154-155-168>170-191015- FISHER-NOLAN-STERLING-COKE-RUNNELS-IRION-TOM GREEN-CONCHO- CROCKETT-SCHLEICHER-SUTTON-HASKELL-THROCKMORTON-JONES-SHACKELFORD- TAYLOR-CALLAHAN-COLEMAN-BROWN-MCCULLOCH-SAN SABA-MENARD-KIMBLE- MASON- 514 AM CDT MON AUG 18 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WEST CENTRAL TEXAS. .DAY ONE...TODAY AND TONIGHT SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS ARE LIKELY TODAY...MAINLY SOUTH OF THE I-20 CORRIDOR. THE MAIN THREAT FROM THE STORMS IS THE POTENTIAL FOR LOCALLY HEAVY RAINFALL...WHICH COULD FLOOD LOW WATER CROSSINGS AND LOW LYING AREAS. STORMS TODAY COULD ALSO PRODUCE STRONG GUSTY WINDS AND DANGEROUS LIGHTNING. THE THUNDERSTORM ACTIVITY WILL BECOME MORE ISOLATED THIS EVENING AND BE CONFINED MAINLY TO THE I-10 CORRIDOR. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME.
The Dyess AFB radar (KDYX), 77 km away, was scanning. The volume nearest the first event began at 13:55 UTC.
3 flash flood, 1 thunderstorm wind. Local standard time, as filed.
Coleman County Sheriff's office reported street flooding across the Coleman area, including some underpasses.
The park service reported several trees downed and numerous large tree branches snapped in South Llano State Park. The time is approximate.
Law enforcement reported knee deep water on roadways in Menard.
The Coleman County Sheriff's office reported city wide street flooding, including minor debris resulting in the closure of some roadways.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2014Every state in 2014This day in weather historyWarnings in Texas, August 2014
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: 541311, 541304, 541305, 541334.