Isolated thunderstorms developed across the southern South Plains on the afternoon of the 30th. A very moist atmosphere was able to generate efficient rain producing thunderstorms.
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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 LUB wrote it up.
Isolated thunderstorms developed across the southern South Plains on the afternoon of the 30th. A very moist atmosphere was able to generate efficient rain producing thunderstorms. A slow moving isolated thunderstorm moving across southern Lynn County produced a wet microburst. Areas along US Highway 87 between O'Donnell and Tahoka were reported to have approximately six inches of water flowing over the roadway. Crop damage from wind-driven hail and roof damage to a barn were also reported.
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 Lubbock, TX wrote its last area forecast discussion before the first event at Aug 30, 1:12 PM CST, 1 hour 48 minutes earlier.
Area Forecast Discussion National Weather Service Lubbock TX 212 PM CDT Fri Aug 30 2024 ...New SHORT TERM, LONG TERM... .SHORT TERM... (This evening through Saturday) Issued at 212 PM CDT Fri Aug 30 2024 The cold front is well south of the area which has left the region in cooler surface conditions. Regeneration of storms is expected to continue through the evening hours in response to a short wave trough slowly dragging across the area. Lift from this short wave will persist through the overnight hours before moving off on Saturday. Therefore, periodic showers and thunderstorms will continue overnight mostly favoring the Rolling Plains. Chances of thunder will diminish through the overnight hours with the area seeing a gradual decrease in elevated instability. Precipitable water values on the order of 150 percent of normal combined with warm cloud depths in excess of 3.5km off the caprock may promote some localized heavy rainfall due to efficient rain producing cells. But this is expected to be isolated at best with the lack of deep and strong large scale ascent. On Saturday, precipitation chances will taper off during the day with the general loss of large scale ascent. The short wave axis will slide to the southeast of the area bringing subsidence overhead indicated in the Q-vector fields and PV analysis. The main area of lift will be located from Oklahoma through Missouri as the stronger winds aloft move off northeast. We will transition to a pseudo rex block pattern over the Intermountain West with an upper low over the southwestern US. We will continue to maintain southwest flow aloft at the upper levels of the atmosphere but drier air will be advecting into the area at mid-levels. Low level easterly upslope flow will keep temperatures below average for late August. && .LONG TERM... (Saturday night through next Thursday) Issued at 212 PM CDT Fri Aug 30 2024 Significant adjustments have been made at the start of the forecast period, particularly PoPs generated by the NBM. Tomorrow evening, the upper air pattern will feature an expansive and amplified ridge over the Intermountain West as a neutrally-tilted trough pivots over the Great Lakes region. A low-amplitude, 250 mb shortwave trough is also forecast to pivot over the Desert Southwest as it translates through the southern periphery of the large-scale ridge, with a belt of strongly confluent flow expected to begin arcing over West Texas. In the mid-levels, weak, east-northeasterly flow will be present as moist, isentropic ascent becomes scant within the low- and mid-level theta surfaces as subsidence increases aloft. At the surface, the CWA will be enveloped within the cool, stable, post-frontal airmass; and PoPs have been removed for all locations, except the far southern South and Rolling Plains from 01/00-06Z (7 PM CDT Saturday to 1 AM CDT Sunday), to account for any residual convection. Thereafter, PoPs were removed area-wide through Sunday evening as the high-level confluence overspreads the region and subsidence further increases in magnitude. Brisk, northeasterly winds on Sunday will keep temperatures in the 80s area-wide, ranging from the lower 80s near the TX/NM state line to the upper 80s in the Rolling Plains as vertical mixing heights ascent to near 700-650 mb. By Sunday evening, the low-amplitude, high-level shortwave trough is forecast to begin ejecting over the TX Big Bend, with 250 mb flow becoming more-difluent while mid-level flow remains weak and out of the east given the position of the ridge over the central Rocky Mountains. PoPs return by this point in the forecast period as the potential for clusters of elevated showers exists as the theta surfaces gradually moisten and subtle geopotential height falls result in the advection of a meager elevated mixed layer over the CWA. Updrafts should struggle to reach heights high enough to generate lightning on Sunday night into Monday, with mainly showers reflected in the official forecast which is accompanied by a slight chance of thunderstorms. Confidence in PoPs is highest for Monday before predictability becomes increasingly limited thereafter as some bifurcation among the global NWP guidance exists in the state of the synoptic-scale pattern with respect to the amplitude of the ridge and how far south the progressive wave train over the Canadian border is able to dig into the Great Plains. The low PoPs generated by the NBM have been maintained for the latter half of the forecast period, and cooler temperatures remain forecast through next week. Sincavage && .AVIATION... (18Z TAFS) Issued at 1228 PM CDT Fri Aug 30 2024 Confidence in this TAF forecast is low with regards to the thunderstorm chances this afternoon and evening. Isolated to scattered thunderstorms are expected to develop again within the next few hours but confidence in coverage, timing, and location is low. Nonetheless, KLBB and KPVW stand the best chance to see any of these potential thunderstorms. Low CIGS are expected to lift to MVFR and then VFR within an hour or two. There is a small chance of thunderstorms into the early morning hours on Saturday but chances are too low to mention in the TAF at the moment. && .LUB WATCHES/WARNINGS/ADVISORIES... None. && SHORT TERM...01 LONG TERM....09 AVIATION...01
Hazardous Weather Outlook...UPDATED National Weather Service Lubbock TX 210 PM CDT Fri Aug 30 2024 TXZ021>044-311915- Parmer-Castro-Swisher-Briscoe-Hall-Childress-Bailey-Lamb-Hale-Floyd- Motley-Cottle-Cochran-Hockley-Lubbock-Crosby-Dickens-King-Yoakum- Terry-Lynn-Garza-Kent-Stonewall- 210 PM CDT Fri Aug 30 2024 This Hazardous Weather Outlook is for the South Plains, Rolling Plains, and the far Southern Texas Panhandle. .DAY ONE...This afternoon and tonight. There is a low probability for widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. Shower and thunderstorm chances will continue through at least Tuesday across the far southern Texas Panhandle, Rolling Plains, and South Plains. Main threats will be brief, heavy rainfall that may lead to localized flash flooding. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
The Lubbock radar (KLBB), 73 km away, was scanning. The volume nearest the first event began at 20:57 UTC.
1 flash flood, 1 thunderstorm wind. Local standard time, as filed.
An off-duty NWS employee and emergency manager reported flooding in southern Lynn County from heavy rainfall. Approximately six inches of water was over the roadway along US Highway 87 between O'Donnell and Tahoka.
A wet microburst affected a portion of rural Lynn County between O'Donnell and Tahoka. A Texas Tech University West Texas mesonet site near O'Donnell measured severe wind gusts from 1508 CST through 1515 CST. A peak wind gust of 62 mph was measured at 1515 CST. Additionally, an NWS cooperative weather observer reported roof damage to a barn as well as crop damage from wind-driven small hail.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2024Every state in 2024This day in weather historyWarnings in Texas, August 2024
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: 1199785, 1199784.