Scattered afternoon thunderstorms formed within a highly moist environment. Slow moving storms produced high rainfall rates that lead to areas of flooding in the southern suburbs of Houston.
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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.
Scattered afternoon thunderstorms formed within a highly moist environment. Slow moving storms produced high rainfall rates that lead to areas of flooding in the southern suburbs of Houston.
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 23, 11:57 AM CST, 18 minutes earlier.
Area Forecast Discussion National Weather Service Houston/Galveston TX 1257 PM CDT Fri Aug 23 2019 .AVIATION [18Z TAF Issuance]... Periods of low visibilites due to heavy rainfall and gusty winds from scattered showers and thunderstorms will occur for GLS, HOU, and IAH over the next few hours. VCTS will continue to impact TAF sites through the evening, although VCSH could impact GLS through the night. Showers spread back through the region tomorrow in the late morning and into the afternoon. Fowler && .PREV DISCUSSION /Issued 1129 AM CDT Fri Aug 23 2019/... .DISCUSSION... Deep low level moisture will continue to move northward across the Gulf waters and inland for the rest of the day. The GOES TPW currently has 2.0 inches or more over most of southeast Texas and is expected to increase this afternoon. Areas of showers and thunderstorms were observed over the local waters and coastal regions this morning with the strongest activity occuring over the waters and southeast quadrant of the CWA. Also, scattered to numerous light to moderate showers have been developing over the north of I-10, particularly east of I-45. Additional activity is expected this afternoon. Thus, increased the POPs for the northern regions and the coastal waters to account for the current weather trend. Otherwise, the rest of the forecast continues on track. Strong showers and thunderstorms will be capable of producing heavy rainfall, frequent lightning, and gusty winds. Heavy rainfall will likely result in ponding of water along roadways and areas of poor drainage as well as reduced visibility. Do not cross flooded roadways. 24 && .PRELIMINARY POINT TEMPS/POPS... College Station (CLL) 77 96 76 97 77 / 10 30 10 20 10 Houston (IAH) 79 92 78 93 79 / 30 50 20 30 10 Galveston (GLS) 82 90 82 91 83 / 60 60 50 40 30 && .HGX WATCHES/WARNINGS/ADVISORIES... TX...None. GM...None. &&
SPECIAL WEATHER STATEMENT National Weather Service HOUSTON/GALVESTON TX 722 AM CDT Fri Aug 23 2019 TXZ214-236>238-313-335>338-436>438-232200- Chambers-Inland Matagorda-Inland Brazoria-Inland Galveston- Coastal Harris-Coastal Jackson-Coastal Matagorda-Coastal Brazoria- Coastal Galveston-Matagorda Islands-Brazoria Islands- Galveston Island and Bolivar Peninsula- Including the cities of Winnie, Mont Belvieu, Anahuac, Stowell, Old River-Winfree, Bay City, Pearland, Alvin, Angleton, League City, Friendswood, Pasadena, Baytown, Palacios, Lake Jackson, Freeport, Clute, Texas City, Dickinson, La Marque, Surfside Beach, and Galveston 722 AM CDT Fri Aug 23 2019 ...TROPICAL FUNNEL CLOUDS AND WATERSPOUTS POSSIBLE TODAY... Tropical moisture is expected to increase today from the Gulf of Mexico. This will allow for showers and a few thunderstorms to form. Conditions are favorable for these showers and storms to quickly rotate and produce funnel clouds or waterspouts. These funnel clouds and waterspouts should be brief and only last for a few moments. Should a funnel cloud reach the ground to become a tornado or a waterspout be spotted, a short warning may be issued. Please report any waterspouts and tornadoes to the National Weather Service.
Special Weather Statement National Weather Service Houston/Galveston TX 101 PM CDT Fri Aug 23 2019 TXZ199-213-231845- Inland Harris TX-Montgomery TX- 101 PM CDT Fri Aug 23 2019 ...SPECIAL WEATHER STATEMENT... At 100 PM CDT, Doppler radar was tracking a strong thunderstorm over Bush Intercontinental Airport, or near Aldine, moving north at 10 mph. Winds in excess of 35 mph and very heavy rain will be possible with this storm. Locations impacted include... Humble, Spring, Aldine, Kingwood, northeastern Northside / Northline, Greater Greenspoint, Bush Intercontinental Airport, East Little York / Homestead, Eastex / Jensen Area, western Atascocita, Houston Gardens, East Houston and Lake Houston. LAT...LON 2984 9529 2987 9539 3013 9539 3008 9515 TIME...MOT...LOC 1800Z 195DEG 8KT 2993 9533
The Houston radar (KHGX), 13 km away, was scanning. The volume nearest the first event began at 18:13 UTC.
1 flash flood. Local standard time, as filed.
There were reports of flooding in and around the University of Houston-Clear Lake campus.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2019Every state in 2019This day in weather historyWarnings in Texas, August 2019
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: 853617.