Satellite wind profiles of northwesterly flow of 15-25 kts at 600-450 hPa shows perhaps |enough flow to move these storms into the northern and western Panhandles. Good DCAPE environment of around 1500 J/kg in-conjunction with shear of 30-40 kts.
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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.
Satellite wind profiles of northwesterly flow of 15-25 kts at 600-450 hPa shows perhaps |enough flow to move these storms into the northern and western Panhandles. Good DCAPE environment of around 1500 J/kg in-conjunction with shear of 30-40 kts. With supporting inverted-v forecast soundings over parts of the northern Panhandles, indicating strong winds as the primary threat. Large hail potential was there as well.
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 20, 4:26 PM CST, 3 hours 24 minutes earlier.
Area Forecast Discussion...UPDATED National Weather Service Amarillo TX 526 PM CDT Tue Jun 20 2017 .AVIATION... A few thunderstorms may affect the DHT and GUY TAF sites this evening. The strongest storms will be capable of producing hail and gusty winds. At this point, it looks like the showers and storms will dissipate before moving near the AMA TAF site. Southerly winds will be around 10 knots or less overnight, but then they will increase by mid morning on Wednesday. Skies are expected to remain VFR outside of thunderstorms. && .PREV DISCUSSION... /Issued 413 PM CDT Tue Jun 20 2017/ DISCUSSION... Latest satellite image is showing cumulus cloud building across most of the Panhandles, especially across the western Panhandles near the surface trough over NE New Mexico and SE Colorado where showers and storms are initiating over the high terrain as well into portions of SW Kansas. Satellite wind profiles of northwesterly flow of 15-25 kts at 600-450 hPa shows perhaps enough flow to move these storms into the northern and western Panhandles. As the storms move east, latest hi-res analysis shows good DCAPE environment of around 1500 J/kg in-conjunction with shear of 30-40 kts. With supporting inverted-v forecast soundings over parts of the northern Panhandles, if storms make it into our region, strong winds will be the primary threat. Large hail cannot also be completely ruled out. Storms should dissipate as we lose daytime heating into the evening hours. Low temperatures tonight will range from the mid 60s to lower 70s. This similar pattern of diurnally driven storms will continue throughout the remainder of the work week with best chances across the northern and western Panhandles. As an upper level high pressure sits over AZ/NM, these bouts of energy riding over the ridge will help initiate convection over the high terrain over CO and NM and move southeast over our region. Some of the storms on Wednesday could also be strong and will be monitored with updates to the forecast as we get closer. A cold front will slowly move from north to south across the Panhandles during the day on Friday. Along and out ahead of the front, showers and storms may develop with the given surface forcing. Latest 25/12Z models are not in accord once we go past Friday night. ECMWF is drier compared to the GFS going forward as the main 800-600 hPa temperatures advection lags behind the main front. This may provide additional mid level instability as the temperature contrast swings thorough the region, hence slight chances POPS remains through the weekend as a surface trough may set up across eastern NM providing diurnally driven convection. Blended guidance reflects current precipitation forecast. The main weather change behind the front will be nice cool air returning to region with highs on Sunday in the 70s. Upper level ridge of high pressure looks to build back north as we go into next week. This will bring tranquil conditions back to the region, with only a slight chance of a shower or storm in the far western areas. Otherwise, temperatures will warm up to near or slightly above average as we go into next week. Meccariello && .AMA Watches/Warnings/Advisories... TX...None. OK...None. && 15/16
Hazardous Weather Outlook National Weather Service Amarillo TX 427 PM CDT Tue Jun 20 2017 OKZ001>003-TXZ001>020-211100- Cimarron-Texas-Beaver-Dallam-Sherman-Hansford-Ochiltree-Lipscomb- Hartley-Moore-Hutchinson-Roberts-Hemphill-Oldham-Potter-Carson- Gray-Wheeler-Deaf Smith-Randall-Armstrong-Donley-Collingsworth- 427 PM CDT Tue Jun 20 2017 This Hazardous Weather Outlook is for the Texas and Oklahoma Panhandles. .DAY ONE...Tonight. Thunderstorms are possible across the northern and western Panhandles through the early evening hours. Some of these storms may produce strong winds and large hail. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Thunderstorms will be possible across much of the Oklahoma and Texas Panhandles Wednesday through Monday. Some storms that develop will have the potential to become strong. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated at this time.
Special Weather Statement National Weather Service Amarillo TX 657 PM CDT TUE JUN 20 2017 OKZ001-210100- Cimarron OK- 657 PM CDT TUE JUN 20 2017 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN CIMARRON COUNTY UNTIL 800 PM CDT... At 657 PM CDT, Doppler radar was tracking a strong thunderstorm 7 miles south of Campo, or 18 miles north of Boise City, moving southeast at 15 mph. Nickel size hail and wind gusts of 50 to 55 mph will be possible with this storm. Locations impacted include... Keyes and Sturgis. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take shelter in a sturdy building if threatening weather approaches. && LAT...LON 3699 10203 3673 10203 3667 10242 3699 10270 TIME...MOT...LOC 2357Z 309DEG 14KT 3700 10256 LG
Special Weather Statement
National Weather Service Amarillo TX
807 PM CDT TUE JUN 20 2017
TXZ002-003-007-210200-
Sherman TX-Hansford TX-Moore TX-
807 PM CDT TUE JUN 20 2017
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN HANSFORD...SHERMAN
AND NORTHEASTERN MOORE COUNTIES UNTIL 900 PM CDT...
At 807 PM CDT, Doppler radar was tracking a strong thunderstorm 7
miles southeast of Stratford, moving southeast at 15 mph.
Nickel size hail and wind gusts of 50 to 55 mph will be possible with
this storm.
Locations impacted include...
Cactus and Sunray.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Take shelter in a sturdy building if threatening weather approaches.
This storm 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 3624 10149 3605 10162 3595 10193 3628 10213
3641 10195
TIME...MOT...LOC 0107Z 310DEG 15KT 3629 10196
LGSpecial Weather Statement
National Weather Service Amarillo TX
839 PM CDT TUE JUN 20 2017
TXZ002-003-007-008-210215-
Hutchinson TX-Sherman TX-Hansford TX-Moore TX-
839 PM CDT TUE JUN 20 2017
...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN HUTCHINSON...
SOUTHWESTERN HANSFORD...SOUTHERN SHERMAN AND NORTHEASTERN MOORE
COUNTIES UNTIL 915 PM CDT...
At 838 PM CDT, Doppler radar was tracking a strong thunderstorm 10
miles northeast of Cactus, or 14 miles southeast of Stratford, moving
southeast at 20 mph.
Nickel size hail and wind gusts of 50 to 55 mph will be possible with
this storm.
Locations impacted include...
Cactus and Sunray.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Take shelter in a sturdy building if threatening weather approaches.
This storm 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 3619 10207 3631 10189 3618 10153 3594 10151
3588 10190
TIME...MOT...LOC 0138Z 304DEG 17KT 3617 10192
LGThe Amarillo radar (KAMA), 107 km away, was scanning. The volume nearest the first event began at 01:49 UTC.
4 thunderstorm wind, 1 hail. Local standard time, as filed.
Damage survey indicated a microburst associated with a severe thunderstorm caused damage to a well built structure and bent a radio tower 90 degrees, along with some irrigation and farm equipment.
Patio roof was blown off and also ripped the metal roof off part of the house.
Five to 6 power poles blown over onto FM Road 1573 seven miles east of HWY 287.
A microburst associated with a severe thunderstorm damaged center pivots of irrigation equipment and snapped 13 power poles. The damage path associated with the microburst had a path length of 2.3 miles, a path width of 2.1 miles, and ended around 912 PM CDT.
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, June 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: 708028, 708029, 708030, 708038, 708024.