A mesoscale convective system (MCS) tracked across the Texas Panhandle during the early morning hours of the 20th. This MCS produced a strong outflow boundary on the south end of the system which was able to create a severe wind gust to 61 mph at the Childress Municipal Airport ASOS.
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The episode as NWS LUB wrote it up.
A mesoscale convective system (MCS) tracked across the Texas Panhandle during the early morning hours of the 20th. This MCS produced a strong outflow boundary on the south end of the system which was able to create a severe wind gust to 61 mph at the Childress Municipal Airport ASOS.
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 Jun 20, 5:28 AM CST, 23 minutes earlier.
Area Forecast Discussion National Weather Service Lubbock TX 628 AM CDT Wed Jun 20 2018 .UPDATE... Front is nearly half way through the CWA and quickly moving down the TX Panhandle. Thunderstorms over the western Extreme Southern TX Panhandle are expected to move SE and persist for the next several hours as the front continues to interact with the low- level jet. A risk for small hail and winds up to 55 mph will be possible. Models continue to handle the precip and front poorly. Thus, uncertainty remains on how far precip will make it into the Rolling Plains this morning. Have increased PoPs slightly. && .PREV DISCUSSION... /issued 346 AM CDT Wed Jun 20 2018/ DISCUSSION... Big picture: Today, high pressure will continue to build across the SOCAL/AZ/NM borders. Thus, resultant upper level flow over the FA will become northwesterly (and stay that way through the end of the week). To our east a weaker high pressure system aloft will continue to turn over the southeast. While, northeast of the region a slow moving upper low over Montana and the Dakotas will open into a trough in the early morning hours. Moving to the mesoscale...a convective surface outflow/front, associated with the aforementioned upper trough, will be sent through West Texas today. Today's convective chances will be highly dependent on how slow (or fast) the front moves through the Panhandle. Although models continue to be underwhelmed about convection developing during the day Wednesday there is still a chance some areas receive precip this afternoon. If the front stalls during peak heating of the day, and the CAP is broken, the upslope flow will be met by PWs of more than an inch and convection could develop across the Rolling Plains. Given MUCAPE values of a little over 1200 J/kg and bulk shear values of close to 35 knots, some storms could become strong to severe with strong wind gusts and large hail. BUT, (and this is a huge BUT), if the front moves through the region before peak heating then convection will be very isolated to zero. Thursday, the upper ridge begins to break down as flow becomes more westerly. This will help usher in a drier air mass and limit our thunderstorm chances through the weekend. Both Friday night and Saturday night, there is a chance that thunderstorm activity could brush the far NE zones due to shortwave energy riding over the ridge helping storms develop across the Rookies. Westerly flow should keep the storms north of the area but, again, there is a chance our NE zones see some activity. Westerly flow will continue to usher in drier air over the weekend. Thus, it will be hot and dry with high temperatures surge past the century mark. At the start of next week, the upper level ridge flattens as a closed low moves through the central CONSUS. This will allow possible MCS development most days with precip over or very near to our CWA. && .LUB WATCHES/WARNINGS/ADVISORIES... None. && 28/99
Hazardous Weather Outlook National Weather Service Lubbock TX 359 AM CDT Wed Jun 20 2018 TXZ021>044-202100- Parmer-Castro-Swisher-Briscoe-Hall-Childress-Bailey-Lamb-Hale- Floyd-Motley-Cottle-Cochran-Hockley-Lubbock-Crosby-Dickens-King- Yoakum-Terry-Lynn-Garza-Kent-Stonewall- 359 AM CDT Wed Jun 20 2018 This Hazardous Weather Outlook is for the South Plains, Rolling Plains and the far Southern Texas Panhandle. .DAY ONE...Today and Tonight There is a potential for some strong to severe thunderstorms this afternoon/evening, mainly east of the Interstate 27 corridor. Strong wind gusts up to 55 mph with ping pong sized hail is possible with storms that do become strong to severe. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday No hazardous weather is expected at this time.
Special Weather Statement National Weather Service Lubbock TX 617 AM CDT WED JUN 20 2018 TXZ024>026-201200- Childress TX-Briscoe TX-Hall TX- 617 AM CDT WED JUN 20 2018 ...SIGNIFICANT WEATHER ADVISORY FOR CHILDRESS...HALL AND NORTHEASTERN BRISCOE COUNTIES UNTIL 700 AM CDT... At 617 AM CDT, Doppler radar was tracking a strong thunderstorm 9 miles southeast of Memphis, moving southeast at 25 mph. Half inch hail and wind gusts of 50 to 55 mph will be possible with this storm. Locations impacted include... Childress, Memphis, Tell, Kirkland, Brice, Estelline, Lakeview and Plaska Community. LAT...LON 3434 10000 3442 10084 3475 10114 3475 10000 TIME...MOT...LOC 1117Z 306DEG 21KT 3462 10043 RMCQUEEN
The Altus AFB radar (KFDR), 120 km away, was scanning. The volume nearest the first event began at 11:50 UTC.
1 thunderstorm wind. Local standard time, as filed.
Strong outflow winds became severe at the Childress Municipal Airport recording a wind gust to 61 mph.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2018Every state in 2018This day in weather historyWarnings in Texas, June 2018
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: 751839.