A cold front moved into a very moist airmass situated across West Central Texas. This clash in airmasses caused some flash flooding across the region.
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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.
A cold front moved into a very moist airmass situated across West Central Texas. This clash in airmasses caused some flash flooding across the region.
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 Sep 6, 5:40 AM CST, 2 hours 9 minutes earlier.
Area Forecast Discussion National Weather Service San Angelo TX 640 AM CDT Thu Sep 6 2018 .AVIATION... /12Z TAFS/ Showers and a few thunderstorms will develop across the terminals this morning into the afternoon hours. Due to limited thunder coverage, will only mention VCTS at the terminals at this time. IFR ceilings will affect KSOA and KJCT through mid to late morning, with MVFR ceilings elsewhere. Precipitation will not be as widespread across the area tonight and will only mention VCSH and make amendments as necessary. Low ceilings may return to the terminals towards daybreak Friday. Expect light winds through the period. && .PREV DISCUSSION... /issued 347 AM CDT Thu Sep 6 2018/ SHORT TERM... (Today and Tonight) Another wet and cool day is on tap for West Central Texas, with scattered to numerous showers and a few thunderstorms affecting the area once again. Currently, an area of light to moderate rain showers is occurring over far southern portions of the Big Country into the Heartland counties. Latest model guidance shows the development and expansion of precipitation across the area during the morning hours and continuing through afternoon. Coverage should be similar or even a little better than yesterday due to a weak cold front that will move into the northern half of the area during the day and provide a focus. Precipitable water values will remain around 2.0 inches today, which will contribute to heavy rainfall potential and the threat for localized flooding as convection will be slow moving. Temperatures will be cool again today, running roughly 10 degrees below normal for early September, with highs in the upper 70s and lower 80s. Rain chances continue tonight, although much like the past few nights, coverage should be lower than what occurs during the daylight hours. Lows tonight will be in the upper 60s and lower 70s. LONG TERM... (Friday through Wednesday) A weak front will be stationary across the forecast area Friday and Saturday, although it is hard to say exactly where. Nevertheless, this front will provide a focus point for lift to help initiate heavy showers and thunderstorms across West Central Texas on both days. With an upper level ridge over the southeast U.S. continuing to provide plentiful atmospheric moisture (precipitable water of around 1.7-2.0 inches), the heavy showers and thunderstorms that occur will produce heavy rainfall rates (around 2-3 inches/hour) and even the moderate showers will produce rates of possibly 1 inch/hour. With this high amount of moisture in place, any training of storms or slow moving storms will create the potential for flash flooding. Expect the cloudy conditions to continue with cooler than normal temperatures (highs in the upper 70s/low 80s). An upper level trough moving through the Midwest Sunday into early next week will cut-off the supply of deep Gulf moisture, resulting in decreasing moisture and clouds across the area Sunday into Monday, and also lesser rainfall chances. By Tuesday, models are mostly dry across our forecast area with mostly clear skies. Conditions will warm up as a result, with highs reaching the upper 80s Monday/Tuesday and possibly low 90s on Wednesday. && .PRELIMINARY POINT TEMPS/POPS... Abilene 81 68 79 67 / 70 50 70 60 San Angelo 82 68 81 67 / 70 50 70 60 Junction 84 71 84 68 / 70 50 70 60 Brownwood 83 70 82 69 / 60 50 70 70 Sweetwater 79 68 78 65 / 70 50 70 50 Ozona 79 68 80 65 / 70 50 70 60 && .SJT WATCHES/WARNINGS/ADVISORIES... None. && 99/99/24
Hazardous Weather Outlook National Weather Service San Angelo TX 446 AM CDT Thu Sep 6 2018 TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139- 140-154-155-168>170-071000- 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- 446 AM CDT Thu Sep 6 2018 This Hazardous Weather Outlook is for portions of west central Texas. .DAY ONE...Today and Tonight Scattered to numerous showers and a few thunderstorms will affect the area again today and tonight. The main hazard will be heavy rainfall, which may result in localized flash flooding. .DAYS TWO THROUGH SEVEN...Friday through Wednesday Periods of showers and thunderstorms will continue to affect the area Friday through the upcoming weekend. Some of the rainfall will be heavy at times, especially Friday and Saturday. The main hazard will be localized flash flooding. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated at this time.
The Dyess AFB radar (KDYX), 58 km away, was scanning. The volume nearest the first event began at 13:50 UTC.
9 flash flood, 3 flood. Local standard time, as filed.
Flooded low water crossing on County Road 150 west of U.S. Highways 83 and 84.
Flooding was reported FM 2596 about 8 miles southeast of Eldorado.
Flooding was reported on FM 915 just north of Eldorado.
A vehicle was swept off a low water crossing on FM 864 at the San Saba River near Fort McKavett. Both persons were rescued.
Water entered the Haskell Elementary School and one residential home.
Water flooded U.S. Highway 380 east of Rule and Texas Highway 6 just south of Rule.
Water was reported over FM 617 about 4 miles east of Rochester.
Water was reported over the road at U.S. Highway 380 about 5 miles west northwest of Haskell. The water was about two feet deep in some locations.
Highway 1170 about 2 miles west of Blackwell was closed due to flooding. Water was also over the road east of Blackwell and also along Texas Highway 153 near Country Road 263.
Flooding was reported across County Road 419 near Novice. One vehicle was washed off the roadway. Occupants safely left the vehicle.
Numerous streets and low water crossings were reported flooded across San Angelo.
A tweet from the Texas Department of Public Safety reported State Highway 163, south of Ozona, was closed due to high water.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2018Every state in 2018This day in weather historyWarnings in Texas, September 2018
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: 786835, 786117, 786119, 786836, 786126, 786127, 786128, 786129, 786130, 786131, 786132, 786838.