A slow moving thunderstorm dropped locally heavy rain over portions of Colorado County leading to localized 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 HGX wrote it up.
A slow moving thunderstorm dropped locally heavy rain over portions of Colorado County leading to localized flash flooding.
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 24, 2:27 AM CST, 5 hours 33 minutes earlier.
Area Forecast Discussion National Weather Service Houston/Galveston TX 327 AM CDT Wed Aug 24 2022 ...New SHORT TERM, LONG TERM, AVIATION, MARINE... .SHORT TERM... (Today and Tomorrow Night) Issued at 236 AM CDT Wed Aug 24 2022 Weak/diffuse frontal boundary should be situated across the northern 1/3 of the CWA today. Deep Gulf moisture with PW's in the 2.2-2.5" range will be pooling along and south of this feature. Combined with heating and subtle impulses embedded in the flow aloft, this should bring good chances for shra/tstms across parts of the region today...particularly south of a Livingston-Columbus line. Steering flow is very weak. In addition, potential is there for some training with disturbances generally riding parallel to the frontal boundary. Will need to keep a close eye on things...as efficient rain rates are anticipated given the moisture profile. It looks like one of those days where a swath of 0.5-1.0" accumulations will be the norm across southern parts described above, but with some very localized 2-5" mixed in if and where any clustering/training occurs. Grounds should be able to handle a good amount of precip...just not the 2- 3"+/hr rates which would cause some street flooding. Will handle this potential by adding the mention of locally heavy rainfall into the fcst/grids for now. Looking for rains to mostly taper off toward evening, followed by some regeneration later tonight closer to the coast. Parameters for Thurs look about the same as today, but llvl boundary will probably set up a touch further south...so axis of better rain chances should follow (maybe I-10 to the coast assuming no significant mesoscale disruptions in the meantime). 47 && .LONG TERM... (Friday through Tuesday) Issued at 236 AM CDT Wed Aug 24 2022 Spoiler: Wet weather persists through the long term. A weak upper level low will be hanging around the northwest Gulf Friday through Tuesday which combined with PWATs near 2 inches will lead to continued chance of precipitation. Generally the best chance for showers and thunderstorms will be during the morning through late afternoon hours with coverage shrinking during the overnight periods. Through the start of next week, the best chance for precipitation will be along and south of I-10, but exactly where the storms develop will be driven by mesoscale features (sea breeze, out flows, etc.) that can't be predicted this far out. On average, expect up to 1 to 2 inches of rain through Monday with the chance for locally higher or lower amounts. There may be a pattern change as we get towards the end of the long term as a slow boundary moves in from the north. Exact timing on this is uncertain, but should happen Wednesday or Thursday - and it would continue the wet weather we have been in for the last week or so. Temperatures through the long term will be quite stable with afternoon highs in the low 90s and overnight lows in the mid to upper 70s. Fowler && .AVIATION... (12Z TAF Issuance) Issued at 236 AM CDT Wed Aug 24 2022 See short term for general fcst reasoning. Shra/tstm chances should be on the high side for terminals CXO southward today. VFR conditions will generally prevail outside of the stronger cells/rainfall. Reduced visibilities and MVFR cigs in/near any stronger cells. 47 && .MARINE... Issued at 236 AM CDT Wed Aug 24 2022 Moderate onshore flow of around 10 knots with wave heights between 2 and 3 feet will persist through the weekend. The flow may increase to near 15 knots during the overnight periods, so small craft may need to exercise caution. Scattered showers and thunderstorms will persist into next week with locally gusty winds and higher seas will occur near stronger storms. Fowler && .PRELIMINARY POINT TEMPS/POPS... College Station (CLL) 92 75 93 75 / 40 20 30 20 Houston (IAH) 89 76 91 75 / 70 40 60 40 Galveston (GLS) 90 80 91 80 / 70 60 60 50 && .HGX WATCHES/WARNINGS/ADVISORIES... TX...None. GM...None. && SHORT TERM...47 LONG TERM....Fowler AVIATION...47 MARINE...Fowler
The Houston radar (KHGX), 124 km away, was scanning. The volume nearest the first event began at 14:00 UTC.
1 flash flood. Local standard time, as filed.
Low water crossings flooded along 169, FM 2761. Road closed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
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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: 1040931.