A short line of thunderstorms developed during the evening along a surface low pressure trough near the New Mexico state line. Strong winds were reported as the storms reached Hereford in the southwest Texas Panhandle.
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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.
A short line of thunderstorms developed during the evening along a surface low pressure trough near the New Mexico state line. Strong winds were reported as the storms reached Hereford in the southwest Texas Panhandle.
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 Sep 20, 5:18 PM CST, 4 hours 22 minutes earlier.
Area Forecast Discussion...UPDATED National Weather Service Amarillo TX 618 PM CDT Fri Sep 20 2019 .AVIATION... Some isolated thunderstorms may affect the western and southern Texas Panhandle this evening. At this point, DHT looks to have the best chance of thunderstorms, so have inserted a tempo group there. Did not mention thunderstorms at this time in AMA as storms may not make it before they dissipate. Low clouds in the MVFR range are expected to develop overnight at all sites. In fact, AMA may have a brief bout of IFR conditions around sunrise. Low clouds will slowly dissipate or lift through the morning on Saturday. Gusty southerly winds will decrease, but then they will increase again by Saturday afternoon. && .PREV DISCUSSION... /Issued 350 PM CDT Fri Sep 20 2019/ DISCUSSION... Highlights for this forecast discussion include our rain chances today/tonight and into parts of the weekend. Sunday could end up mostly dry outside of eastern parts of the Panhandles, and this is likely the biggest change in the forecast from the previous package. Rain chances will continue as we head into next week, but the middle of the week (Wed/Thur) has some uncertainty regarding overall chances for the Panhandles. There is a signal for thunderstorms across the region, but this will be heavily influenced by the track/timing of an upper level low and available moisture. Overall, pretty good model agreement exists from now through Tuesday. Severe weather is possible each day with our rainfall chances through the weekend, and not so much to start early next week. Upper level low currently making its way out of the Great Basin Region is helping produce some larger scale lift associated with a very subtle shortwave over eastern New Mexico as showers continue this afternoon. Modest moisture seen in precipitable water values should allow for weak showers to continue through early parts of the afternoon. The big question is whether or not the atmosphere has been worked over too much. We have low to mid 60 dewpoints across much of the forecast area, but cloud cover has kept temperatures in the 70s for a good portion of the day. We are starting to see 80s across some areas as of lately. Cloud tops are starting to cool south across Lubbock's forecast area ahead of the shortwave, where thunderstorm development is ongoing. Most of the stronger storms should stay south of the Amarillo area today. Effective bulk shear is strong later today with values around 35-45 knots across southern/western parts of the forecast area. ML CAPE values around 1500-2000 J/kg are possible in this same area with LCL height around 1000m in the south. These low LCL heights are especially concerning in the south where Sfc-1km helicity values are forecast around 100- 150 m2/s2. One limiting factor is lapse rates today which are not that impressive, especially later in the afternoon and evening hours, and the fact we lack surface convergence today across the Panhandles. Our window of opportunity is shrinking as the afternoon hours pass by, but certainly all hazards are in play today with any thunderstorms that do develop. Mostly likely outcome is the convection to the south will move into southeastern parts of the Texas Panhandle late this afternoon and through parts of the overnight hours. Tomorrow will be dependent on how far south surface features will transition/develop and how we recover. Better dynamics may end up being north of the forecast area. However, if a remnant boundary from convection tonight is around we could certainly see thunderstorms and severe weather Saturday. In other words, synoptic features may favor the north/northeast, and mesoscale features such as outflow boundaries may influence thunderstorms to the east/southeast...or both outcomes. Upper level jet location may also help influence convection with the right entrance region creating divergence aloft over northern parts of the forecast area. Nearly the entire forecast area is in play Saturday, favoring central and eastern parts. Modest cape and shear is forecast. Once the cap is broken thunderstorms should develop. Sunday was to trend precipitation chances down, while keeping some chance to the far southeast Texas Panhandle. Next large scale system comes on shore early next week and we will see large scale ascent increasing across the region. Available moisture is still good early next week with precipitable water values in the 90th percentile and higher. Theta-e values (700mb) are also decent for this time of year. Moisture shouldn't be a problem. We are lacking surface features, weak lapse rates (low CAPE), low bulk shear, and weak flow aloft are all present. Thunderstorms may struggle Monday and Tuesday, so we shouldn't get our hopes up too much, but we could see some showers and hence the PoPs in the forecast. Much uncertainty Wednesday and Thursday, but signal for rain in the region is there. Seasonable temperatures are forecast through the entire package favoring on the warm side of climatology. Guerrero && .AMA Watches/Warnings/Advisories... TX...None. OK...None. && 15/77
Hazardous Weather Outlook National Weather Service Amarillo TX 353 PM CDT Fri Sep 20 2019 OKZ001>003-TXZ001>020-317-210900- Cimarron-Texas-Beaver-Dallam-Sherman-Hansford-Ochiltree-Lipscomb- Hartley-Moore-Hutchinson-Roberts-Hemphill-Oldham-Potter-Carson- Gray-Wheeler-Deaf Smith-Randall-Armstrong-Donley-Collingsworth- Palo Duro Canyon- 353 PM CDT Fri Sep 20 2019 This Hazardous Weather Outlook is for the Texas and Oklahoma Panhandles. .DAY ONE...This Afternoon and Tonight. Thunderstorms are expected to develop today and tonight across parts of the Oklahoma and Texas Panhandles. A few storms may become strong to severe, with large hail and wind gusts to around 60 mph the primary hazards, especially in the southeastern Texas Panhandle. In addition, the strongest storms will be capable of producing heavy to very heavy rainfall, which may lead to localized flooding or flash flooding. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. Thunderstorms will be possible across much of the Oklahoma and Texas Panhandles Saturday through early Sunday morning, and then off and on again Monday afternoon through Thursday night. A few storms may become strong to severe on Saturday, with large hail and damaging winds the primary hazards. In addition, the strongest storms will be capable of producing heavy rainfall, which may lead to localized flooding or flash flooding. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated at this time.
Special Weather Statement
National Weather Service Amarillo TX
549 PM CDT Fri Sep 20 2019
TXZ001-006-011-202315-
Hartley TX-Dallam TX-Oldham TX-
549 PM CDT Fri Sep 20 2019
...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN OLDHAM...
SOUTHEASTERN DALLAM AND HARTLEY COUNTIES UNTIL 615 PM CDT...
At 549 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 18 miles east of Amistad to 8 miles southeast
of Romero to 13 miles north of Glenrio. Movement was northeast at 50
mph.
Nickel size hail and wind gusts of 50 to 55 mph will be possible with
these storms.
Locations impacted include...
Dalhart, Hartley, Channing and Romero.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Take shelter in a sturdy building if threatening weather approaches.
These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
&&
LAT...LON 3548 10304 3555 10300 3588 10297 3641 10228
3566 10226 3531 10278 3528 10304
TIME...MOT...LOC 2249Z 222DEG 46KT 3584 10284 3564 10283 3537 10308
LGSpecial Weather Statement
National Weather Service Amarillo TX
812 PM CDT Fri Sep 20 2019
TXZ011-016-210145-
Deaf Smith TX-Oldham TX-
812 PM CDT Fri Sep 20 2019
...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL OLDHAM AND WESTERN DEAF
SMITH COUNTIES UNTIL 845 PM CDT...
At 812 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 12 miles northwest of Adrian to 10 miles
southeast of Glenrio. Movement was east at 30 mph.
Dime size hail and wind gusts up to 50 mph will be possible with
these storms.
Locations impacted include...
Adrian, Simms and Bootleg.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Take shelter in a sturdy building if threatening weather approaches.
&&
LAT...LON 3496 10304 3544 10290 3563 10250 3563 10241
3475 10261 3475 10304
TIME...MOT...LOC 0112Z 248DEG 27KT 3541 10282 3506 10291
TLHSpecial Weather Statement National Weather Service Amarillo TX 919 PM CDT Fri Sep 20 2019 TXZ016-210245- Deaf Smith TX- 919 PM CDT Fri Sep 20 2019 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN DEAF SMITH COUNTY UNTIL 945 PM CDT... At 918 PM CDT, Doppler radar was tracking a strong thunderstorm 5 miles southwest of Bootleg, or 13 miles northwest of Friona, moving east at 20 mph. Nickel size hail and wind gusts of 50 to 55 mph will be possible with this storm. Locations impacted include... Bootleg. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take shelter in a sturdy building if threatening weather approaches. && LAT...LON 3475 10297 3483 10300 3496 10267 3475 10259 TIME...MOT...LOC 0218Z 253DEG 16KT 3477 10289 TLH
Special Weather Statement National Weather Service Amarillo TX 948 PM CDT Fri Sep 20 2019 TXZ016-210315- Deaf Smith TX- 948 PM CDT Fri Sep 20 2019 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN DEAF SMITH COUNTY UNTIL 1015 PM CDT... At 948 PM CDT, Doppler radar was tracking a strong thunderstorm 7 miles east of Bootleg, or 12 miles north of Friona, moving east at 25 mph. Nickel size hail and wind gusts of 50 to 55 mph will be possible with this storm. Locations impacted include... Hereford. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take shelter in a sturdy building if threatening weather approaches. && LAT...LON 3475 10275 3488 10279 3500 10240 3475 10233 TIME...MOT...LOC 0248Z 257DEG 21KT 3482 10269 TLH
Special Weather Statement
National Weather Service Amarillo TX
1035 PM CDT Fri Sep 20 2019
TXZ016-210400-
Deaf Smith TX-
1035 PM CDT Fri Sep 20 2019
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN DEAF SMITH COUNTY
UNTIL 1100 PM CDT...
At 1035 PM CDT, Doppler radar was tracking a strong thunderstorm over
Hereford, moving northeast at 35 mph.
Nickel size hail and wind gusts of 50 to 55 mph will be possible with
this storm.
Locations impacted include...
Hereford and Dawn.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Take shelter in a sturdy building if threatening weather approaches.
&&
LAT...LON 3484 10257 3508 10242 3502 10217 3488 10217
3475 10237 3475 10246
TIME...MOT...LOC 0335Z 226DEG 31KT 3484 10243
TLHThe Amarillo radar (KAMA), 78 km away, was scanning. The volume nearest the first event began at 03:41 UTC.
2 thunderstorm wind. Local standard time, as filed.
Numerous tree branches were blown down in Hereford. Power lines were downed. The strong winds also caused the collapse of an unknown type of building structure.
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, September 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: 856726, 856727.