Isolated thunderstorms developed on the afternoon of the second under a very hot low level atmosphere. One of these storms produced a microburst near Brownfield (Terry County) as it moved over a Texas Tech University West Texas mesonet.
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The episode as NWS LUB wrote it up.
Isolated thunderstorms developed on the afternoon of the second under a very hot low level atmosphere. One of these storms produced a microburst near Brownfield (Terry County) as it moved over a Texas Tech University West Texas mesonet. A peak wind gust of 76 mph was measured by this mesonet near Brownfield.
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 Sep 2, 6:13 PM CST, 43 minutes earlier.
Area Forecast Discussion National Weather Service Lubbock TX 713 PM CDT Thu Sep 2 2021 .AVIATION... Scattered showers and thunderstorms currently developing just south-southwest of KLBB and KPVW look capable of impacting both airports this evening. VCTS has been extended for these airports and also wind gusts added as storms likely to produce outflow wind gusts. Storms appear will remain just west of KCDS this evening. VFR and modest low level southerly flow will continue otherwise. RMcQueen && .PREV DISCUSSION... /issued 240 PM CDT Thu Sep 2 2021/ SHORT TERM... Mid level moisture remains in place across the forecast area this afternoon from southwest to northeast as upper level ridging continues to dominate our weather pattern. This has led to the blossoming of a cumulus field once again today. No discernible surface boundaries remain in the area from the morning convection although the surface trough remains across the region. Latest mesonet observations as of 2 pm indicate weak surface convergence occurring from near Denver City to Floydada, with a theta-e ridge from near Friona back to Snyder. Where these features overlap should have the greatest potential of seeing shower and thunderstorm development this afternoon and evening although most locations will be unstable enough to see isolated convection develop. Storm motions will be just a bit faster today (to the northeast at around 15 mph) however PWATs continue to run above average therefore brief heavy rainfall will remain the biggest threat with these showers and thunderstorms. Low level lapse rates remain steep enough that the strongest thunderstorms may produce gusty downdraft winds to 50 mph as well. Similar to last night the low level jet is expected to ramp up this evening which may keep shower and thunderstorm activity going across the Caprock into the early morning hours of Friday. The broken record forecast continues for Friday as the overall upper level pattern won't change much. Although, it appears that some drier mid level air will begin to move into the Rolling Plains tomorrow which should keep the isolated shower and thunderstorm threat constrained across the southwestern Panhandle and northwestern South Plains. Afternoon temperatures on Friday will be in the low 90's on the Caprock, and in the mid to upper 90's off of it. /WCI LONG TERM... The focus this afternoon remains squarely on thunderstorm chances this weekend. A cold front remains progged to move through the Panhandle and possibly into the forecast area as early as Saturday afternoon then lingering in the region through Sunday. Midlevel moisture, after being shunted to the west and north Friday, will begin shifting back toward the region. Models, particularly ensemble mean/majority of members, catching on to the wetter scenario, while the deterministic runs tend to be drier. Pattern seems to support the wetter runs, although to a decent degree, much will depend on the ability of the front, or what remains of it, to be in or just north of the forecast area. The better chance of that occurring will be Sunday afternoon and evening. Will run with the relatively high precip chances from the blend inits. The drier trend in the forecast following the weekend continues to look on track, especially once we reach midweek, as a broad upper ridge moves eastward from the intermountain West to the Great Plains through the course of the week in a slowly progressive upper pattern. && .LUB WATCHES/WARNINGS/ADVISORIES... None. && 99/99/05
Hazardous Weather Outlook National Weather Service Lubbock TX 418 AM CDT Thu Sep 2 2021 TXZ021>044-030930- Parmer-Castro-Swisher-Briscoe-Hall-Childress-Bailey-Lamb-Hale-Floyd- Motley-Cottle-Cochran-Hockley-Lubbock-Crosby-Dickens-King-Yoakum- Terry-Lynn-Garza-Kent-Stonewall- 418 AM CDT Thu Sep 2 2021 This Hazardous Weather Outlook is for the South Plains, Rolling Plains and the far Southern Texas Panhandle. .DAY ONE...Today and tonight. Isolated thunderstorms are possible this afternoon into early this evening. The most intense activity will be capable of producing brief heavy rainfall and wind gusts to 50 mph. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Showers and thunderstorms will be possible Friday over the western South Plains and southwestern Panhandle. Additionally, storm chances will exist for much of the area Saturday afternoon and Sunday. Locally heavy rain and isolated downburst winds will be possible with any storm that moves into or forms over the area. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
Special Weather Statement
National Weather Service Lubbock TX
743 PM CDT Thu Sep 2 2021
TXZ035-030115-
Lubbock TX-
743 PM CDT Thu Sep 2 2021
...A strong thunderstorm will impact portions of western Lubbock
County through 815 PM CDT...
At 743 PM CDT, Doppler radar was tracking a strong thunderstorm over
Lubbock South Plains Mall, or near Lubbock, moving north at 15 mph.
HAZARD...Wind gusts of 50 to 55 mph and half inch hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Lubbock, Wolfforth, Shallowater, Lubbock International Airport, Texas
Tech University, Downtown Lubbock, Lubbock South Plains Mall,
Woodrow, Reese Center, New Deal and Lubbock Science Spectrum.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3343 10183 3348 10204 3376 10200 3369 10169
TIME...MOT...LOC 0043Z 195DEG 13KT 3353 10192
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...55 MPH
RMCQUEENThe Lubbock radar (KLBB), 71 km away, was scanning. The volume nearest the first event began at 00:55 UTC.
1 thunderstorm wind. Local standard time, as filed.
A Texas Tech University West Texas mesonet site near Brownfield measured severe wind gusts from 1856 CST through 1857 CST. A peak wind gust of 76 mph was measured at 1856 CST.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2021Every state in 2021This day in weather historyWarnings in Texas, September 2021
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: 972557.