Diurnal convection that developed in the high terrain of NM/CO advected southeast into the western TX Panhandle. With good 500 hPa flow of around 20 kts, storms had enough mid level motion to move into an environment of MUCAPE/SBCAPE of 1000-2000 J/Kg.
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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 AMA wrote it up.
Diurnal convection that developed in the high terrain of NM/CO advected southeast into the western TX Panhandle. With good 500 hPa flow of around 20 kts, storms had enough mid level motion to move into an environment of MUCAPE/SBCAPE of 1000-2000 J/Kg. With effective shear of around 30 kts, singular cells eventually moved south into a linear complex with a gusty winds and hail threat into the late afternoon hours on the 2nd. Thunderstorm dissipated as the outflow raced ahead and provided no support for storms that already initiated and storms dissipated by evening hours.
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 Amarillo, TX wrote its last area forecast discussion before the first event at Jul 2, 5:18 PM CST, 22 minutes earlier.
Area Forecast Discussion...UPDATED National Weather Service Amarillo TX 618 PM CDT Sun Jul 2 2017 .AVIATION... For the 00Z TAFs, another round of showers and tstms currently over the far northwest parts of the forecast area will continue moving east and southeast, and will likely impact KDHT around 01Z this evening, and perhaps KAMA later this evening or tonight. Have incorporated a TEMPO group for KDHT and a VCTS for KAMA to account for this cluster of showers and tstms. Based on radar movement of storms, it appears KGUY may not be impacted, and have omitted tstms from that terminal site. Thunderstorms should diminish in coverage and intensity late tonight. Andrade && .PREV DISCUSSION... /Issued 408 PM CDT Sun Jul 2 2017/ DISCUSSION... Isolated to scattered thunderstorms expected again this evening, with convection possibly lingering past midnight in eastern sections. Convergence zone seen in surface observations just east of a line from Guymon to Borger is currently experiencing cumulus development. Dryline-like feature poised near far northwest corner of forecast area, with thunderstorm development already well underway. Incoming shortwave trof in weak northwest mid-level flow will provide support for continued convection this evening as low-level jet develops. Moist airmass remains in place Monday, with afternoon and evening thunderstorms still plausible, owing to another shortwave trof, with this one possibly driving a weak cold front into the northwest part of the forecast area. Low thunderstorm pops Tuesday afternoon through Wednesday night confined to mainly southern and southeastern sections where better low-level convergence expected to be positioned near weak frontal boundary. Dry thereafter as anticyclonic mid-level flow prevails in response to strengthening ridge over Rockies. High temperatures mainly in the mid- to upper-90s && .AMA Watches/Warnings/Advisories... TX...None. OK...None. &&
Hazardous Weather Outlook National Weather Service Amarillo TX 407 PM CDT Sun Jul 2 2017 OKZ001>003-TXZ001>020-031130- Cimarron-Texas-Beaver-Dallam-Sherman-Hansford-Ochiltree-Lipscomb- Hartley-Moore-Hutchinson-Roberts-Hemphill-Oldham-Potter-Carson- Gray-Wheeler-Deaf Smith-Randall-Armstrong-Donley-Collingsworth- 407 PM CDT Sun Jul 2 2017 This Hazardous Weather Outlook is for the Texas and Oklahoma Panhandles. .DAY ONE...Tonight. Isolated to scattered thunderstorms are expected across the Texas and Oklahoma Panhandles. A few storms may become strong to marginally severe with one inch hail and damaging winds around 60 MPH being the primary hazards. Locally heavy rains will likely occur, possibly leading to localized flooding. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Thunderstorms will be possible for various portions of the Panhandles Monday through Wednesday night. Some storms Monday could become strong to marginally severe, producing one inch hail and 60 MPH gusts. The threat for organized severe weather will be low Tuesday through Wednesday night. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated at this time. Cockrell
The Amarillo radar (KAMA), 140 km away, was scanning. The volume nearest the first event began at 23:40 UTC.
3 hail, 1 thunderstorm wind. Local standard time, as filed.
Late report of thunderstorm wind gusts estimated up to 60 MPH.
Accumulating hail.
Some quarter size hail with the accumulating hail.
Some accumulating hail on I 27 south at Sundown exit.
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, July 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: 712957, 712958, 712959, 712960.