Isolated thunderstorms developed over the extreme southeastern Texas Panhandle during the afternoon and evening of the 20th. One of these storms became severe over Briscoe County.
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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 over the extreme southeastern Texas Panhandle during the afternoon and evening of the 20th. One of these storms became severe over Briscoe County. A metal roof was torn off of a building at Valley Schools along State Highway 86 between Quitaque (Briscoe County) and Turkey (Hall County).
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 20, 5:30 PM CST, 15 minutes earlier.
Area Forecast Discussion National Weather Service Lubbock TX 630 PM CDT Sun Aug 20 2017 .AVIATION... VFR. Isolated SHRA and some TS near CDS (less so near LBB) should wane in the coming hours as the brunt of TS become focused near the TX-NM state line. Some potential exists for this broader activity to redevelop farther E overnight which could plague LBB and PVW with intermittent TS through early Monday morning. This appears unlikely for the time being, but TAF amendments are on standby. && .PREV DISCUSSION... /issued 325 PM CDT Sun Aug 20 2017/ DISCUSSION... Upper level ridge over the Four Corners region is in the process of collapsing as it absorbs the upper level low that was to our south yesterday. This is leading to increased surface pressure falls farther to the west into eastern New Mexico which is resulting in the shower and storm activity shifting farther west as well. But there remains a mostly slight chance of convection across the western South Plains near the NM/TX state line through the overnight hours. With those rain chances through the overnight come increased cloud cover in the morning hours. Overall opportunities to watch the effects of the eclipse for most of our area will be from approximately 11am CDT until around 2pm CDT, with partly cloudy skies during most of the event, though there could be some more clouds earlier on, around 11am. Then we'll see increasing clouds along with increased coverage of showers and storms in our western counties Monday evening into early Tuesday. By early Tuesday afternoon we'll begin feeling the effects of a slow surface cold front moving south out of the Texas Panhandle and through the the South Plains that should bring the best chances for on and off showers and thunderstorms from Tuesday morning through Wednesday morning before the front pushes south toward the I20 corridor. By the end of the week, a Tropical system in Central Mexico is indicated by both the ECMWF and the GFS which will influence the amount of moisture we see lift north from the monsoon fetch. The longer that system holds together as it passes across Mexico the more we'll be cut off from best moisture through the weekend but could then see plenty by the middle of next week. Models seem to keep the system a bit too organized. So not a whole lot of confidence toward the end of the forecast in temperatures and moisture advection from the south. A big part of the uncertainty that far out will be high temperatures for beginning of next week which appear to remain well below seasonally normal values for this time of year. && .LUB WATCHES/WARNINGS/ADVISORIES... None. && 93/55
Hazardous Weather Outlook National Weather Service Lubbock TX 613 AM CDT Sun Aug 20 2017 TXZ021>044-211115- Parmer-Castro-Swisher-Briscoe-Hall-Childress-Bailey-Lamb-Hale- Floyd-Motley-Cottle-Cochran-Hockley-Lubbock-Crosby-Dickens-King- Yoakum-Terry-Lynn-Garza-Kent-Stonewall- 613 AM CDT Sun Aug 20 2017 This Hazardous Weather Outlook is for the South Plains...Rolling Plains and the far Southern Texas Panhandle. .DAY ONE...Today and Tonight Hazardous weather is not expected at this time. .DAYS TWO THROUGH SEVEN...Monday through Saturday The arrival of a cold front late Tuesday will bring the potential for strong thunderstorms and locally heavy rainfall and flooding Tuesday night and Wednesday.
The Lubbock radar (KLBB), 111 km away, was scanning. The volume nearest the first event began at 23:45 UTC.
1 thunderstorm wind. Local standard time, as filed.
A Texas Parks and Wildlife Department employee reported thunderstorm wind damage at Valley Schools on State Highway 86 between Turkey and Quitaque. A metal roof was torn off of a building.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2017Every state in 2017This day in weather historyWarnings in Texas, August 2017
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: 708282.