A heat burst caused high winds in the southwest Texas Panhandle during the evening.
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The episode as NWS AMA wrote it up.
A heat burst caused high winds in the southwest Texas Panhandle during the evening.
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 Jun 27, 5:47 PM CST, 1 hour 18 minutes earlier.
Area Forecast Discussion National Weather Service Amarillo TX 647 PM CDT Sat Jun 27 2020 .AVIATION...00z TAF Cycle... Will be watching a few thunderstorms this evening mainly before 04z. Most of the thunder activity is expected to dissipate before reaching the terminals, but can't completely rule out a rogue storm at KAMA or KGUY. Gusty/erratic outflow winds will be the main threat with or ahead of the strongest storms. Otherwise, VFR conditions are expected through the period. Southerly winds with some gusts around 25 knots will be possible through early evening, then weaken and become more southwesterly through the night. Some low level wind shear is expected at KGUY tonight as a strong low level jet forms. Ward && .PREV DISCUSSION... /Issued 235 PM CDT Sat Jun 27 2020/ SHORT TERM... Current WV satellite reveals southwesterly flow aloft across the Panhandles ahead of a positively tilted upper trough situated over a SW AZ - SE WY axis with several shortwaves in this flow seen over SE AZ and NM. At the surface, it has been another hot day across the Panhandles with temperatures in the 90s and dew points generally in the lower 50s across the west to the upper 60s across the far east. This evening, expect one of the upstream shortwaves to translate across the CWA. This may lead to a thunderstorm or two, although latest progged soundings suggest capping should greatly limit coverage. While organized convection seems unlikely given 0-6km bulk shear values of 30 knots or less, large surface T-Td spreads resulting in DCAPE values of around 1000 J/kg will lead to a risk for a stray severe wind gust should any thunderstorms develop. For Sunday, guidance in good agreement the base of the upper trough will shift eastward across NM. Lee surface trough will slide eastward, allowing the western CWA to dry out. However, east of this feature, dewpoints look to stay up in the 50s and 60s, supporting a conditional chance for thunderstorms. With southwesterly flow aloft continuing, expect an EML to be in place over the entire CWA. Will need to overcome this cap for thunderstorms to develop. Enough of a chance that the mid-levels cool sufficiently ahead of the approaching trough to include a mention of showers and storms across our southeast late Sunday afternoon and evening. Much like Saturday, shear profiles do not support organized convection, but strong wind gusts will be possible. FIRE WEATHER... Fire weather concerns return Sunday as a surface trough slides eastward across the Panhandles. With a decent surface gradient in place, expect breezy southerly and southwesterly winds to result, with 20 foot values of 10 to 25 mph. Areas with southwesterly winds will experience drying due to the downslope wind component, with afternoon RH values bottoming out around 10 to 15 percent. This will lead to RFTI values of 1 to 2. Fuels remain the largest uncertainty due to our recent rainfall, but latest WFAS values show ERC values in the 70th to 89th percentile, yielding elevated conditions across the western Panhandles. Should rainfall Saturday afternoon and evening be more expansive than predicted, the forecast for elevated conditions may need to be revisited with the next forecast package. Ferguson LONG TERM... Monday and Tuesday look to be the warmest days of the upcoming work week. Highs are expected to be around 100 to 105 degrees for most places across the Panhandles. The atmosphere will dry out for both of those days and downslope winds will help to warm the dry air up. A weak cold front will move through the Panhandles Wednesday morning and this will stop the strong downslope as north winds turn more to the south and southeast by late in the day on Wednesday. The southeast surface winds will continue Thursday and Friday which will increase the surface moisture across the Panhandles. An upper level ridge will build across the Panhandles on Thursday, but will move slightly to our west by Friday. The upper level ridge will have a few minor weak short wave troughs moving through it as it moves from east to west across the southern High Plains into the southern Rockies. These disturbance may interact with the low level moisture enough to produce some showers and thunderstorms across the area Thursday night through Friday night. FIRE WEATHER... Critical fire weather conditions will be possible across all of the western Panhandles and the central Oklahoma Panhandle and the north- central Texas Panhandle on Monday. These critical fire weather conditions may spread southeast to cover all but the eastern Panhandles by Tuesday. Southwest winds in the 15 to 25 mph range are expected to be found across much of the Panhandles on Monday and Tuesday, but the lowest relative humidity is expected across the western and north central CWA on Monday. These lower relative humidity values spread further southeast on Tuesday. && .AMA Watches/Warnings/Advisories... TX...None. OK...None. && 7/99
Hazardous Weather Outlook National Weather Service Amarillo TX 253 PM CDT Sat Jun 27 2020 OKZ001>003-TXZ001>020-317-280800- 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- 253 PM CDT Sat Jun 27 2020 This Hazardous Weather Outlook is for the Texas and Oklahoma Panhandles. .DAY ONE...Tonight. Thunderstorms will be possible across parts of the Oklahoma Panhandle and parts of the southwest and south central Texas Panhandle. A storm or two could become severe with strong winds the main threat. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Elevated fire weather conditions are possible across the western Panhandles on Sunday due to breezy winds and low relative humidity. Critical fire weather conditions will be possible on Monday across the western and central Oklahoma Panhandle and the western and north central Texas Panhandle due to windy conditions and low relative humidity. Critical fire weather conditions will be possible across the Oklahoma Panhandle and much of the Texas Panhandle Tuesday due to windy conditions and low relative humidity. High temperatures around 105 are possible for parts of the southern Texas Panhandle including Palo Duro Canyon both Monday and Tuesday. Heat Advisories may become necessary on Monday and Tuesday. Thunderstorms will be possible across much of the southern and western Texas Panhandle and the western Oklahoma Panhandle Sunday, Thursday night, and Friday. A few storms may become strong with hail and gusty winds, but severe weather is not expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated at this time. Area fire managers and emergency officials should be alert for elevated or critical fire weather conditions Sunday through Tuesday.
The national radar mosaic for the moment the first event began.
1 high wind. Local standard time, as filed.
This gust was measured at the West Texas Mesonet station 2 miles west-northwest of Hereford, and is presumed to have been caused by a heat burst.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2020Every state in 2020This day in weather historyWarnings in Texas, June 2020
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: 891702.