Scattered thunderstorms developed over the southeastern Texas panhandle during the afternoon hours on the 6th. A low level circulation was stretched into a non-mesocyclonic tornado in Hall county between Estelline and Memphis along US Highway 287.
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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 LUB wrote it up.
Scattered thunderstorms developed over the southeastern Texas panhandle during the afternoon hours on the 6th. A low level circulation was stretched into a non-mesocyclonic tornado in Hall county between Estelline and Memphis along US Highway 287. No damage was reported.
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 Aug 6, 2:18 PM CST, 12 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LUBBOCK TX 318 PM CDT SAT AUG 6 2011 .SHORT TERM... UA RIDGING CONTINUES TO BE THE RULE FOR THE SHORT TERM PERIOD...AS IT FLATTENS AND RETROGRADES WEST ACROSS THE REGION TODAY...AND THE CENTER IS PROGGED TO BE SW OF WEST TEXAS BY SUNDAY. LOOKING AT THE SFC...A SFC TROUGH WAS DRAPED FROM WESTERN OKLAHOMA SW TO EASTERN NEW MEXICO THIS AFTERNOON...WHILE CONCURRENTLY AN UA TROUGH ACROSS THE WESTERN CONUS AIDS IN BENDING THE THINNING MONSOONAL FETCH EASTWARD TO ACROSS THE WESTERN AND NORTHERN LOCALES. HENCE PER 20Z RADAR ANALYSIS...ISOLATED SHOWERS DEVELOPED ALONG THE AFOREMENTIONED MESOSCALE AND SYNOPTIC FEATURES... PARTICULARLY ACROSS THE FAR NORTHWESTERN SOUTH PLAINS. BEST INSTABILITY/SFC BASED CAPE IS ANTICIPATED TO BE ACROSS THE PANHANDLES AND WESTERN OKLAHOMA...HOWEVER BOTH THE NAM AND GFS DISPLAYED CAPE VALUES RANGING BETWEEN 500-1000 J/KG ACROSS THE FAR SRN TEXAS PANHANDLE/NRN SOUTH PLAINS LATER THIS EVENING. THE ABOVE PARAMETERS COMBINED WITH MODEL SOUNDINGS EXHIBITING THE CLASSIC INVERTED-V PROFILE AND WEAK STEERING FLOW ALOFT...SUGGEST SOME STORMS WILL BE CAPABLE OF BRIEFLY APPROACHING STRONG LEVELS...WITH GUSTY WINDS AND MODERATE RAINFALL BEING THE PRIMARY THREATS. TONIGHT...THE NAM EXHIBITED QPF SIGNALS FROM THE NERN ZONES SW TO THE TEXAS/NEW MEXICO BORDER...WHICH ALIGNS ALONG THE MONSOONAL FLOW AND SFC TROUGH. PER THE NAM...CONVECTION APPEARS TO COME TO AN ABRUPT END AFTER MIDNIGHT AS STABILITY INCREASES...VERSUS THE MORE AGGRESSIVE GFS SOLUTION DISPLAYING PRECIP ACROSS NERN ZONES THROUGH SUNRISE. HOWEVER STILL...CAN NOT RULE OUT PERHAPS A FEW LINGERING SHOWERS A FEW HOURS AFTER MIDNIGHT ACROSS NRN ZONES AS HAS BEEN THE CASE THE LAST FEW NIGHTS. ON SUNDAY...THE THINNING MONSOONAL FETCH ACROSS ALL BUT PERHAPS THE FAR SRN AND SERN ZONES IN ADDITION TO A SFC LOW NORTH OF THE REGION MAY ONCE AGAIN INITIATE PRECIP PARTICULARLY ACROSS THE NRN AND NERN ZONES WHERE PWATS ARE PROGGED TO RANGE BETWEEN 1.30-1.60 INCHES. WILL THEREFORE CONTINUE MENTIONABLE POPS ACROSS THE SAID AREA. AS MENTIONED ABOVE...THE CENTER OF THE UA RIDGE WILL SHIFT SW OF THE REGION WITH MODELS CALLING FOR HEIGHTS TO FALL. HOWEVER...850 MB TEMPS REMAIN ABOVE 30 DEGREES CELSIUS ACROSS THE ENTIRE REGION. THUS...TEMPS WILL BE SIMILAR TO TODAY/S /LOWER TRIPLE DIGITS ON THE CAPROCK TO 101-106 DEGREES OFF THE CAPROCK/ GIVE OR TAKE A DEGREE...WITH THE HEAT ADVISORY ACROSS THE ROLLING PLAINS REMAINING VALID. && .LONG TERM... THE MAIN FORECAST CONCERN FOR THE EXTENDED PERIOD WILL CONTINUE TO BE THE EXTREME HEAT THAT WILL PERSIST ACROSS THE REGION WELL INTO NEXT WEEK. THE UPPER-LEVEL RIDGE THAT HAS BEEN DOMINATING THE WEATHER ACROSS THE REGION WILL BE CENTERED JUST TO THE WEST OF THE AREA ON MONDAY...WITH MODELS INDICATING THAT THICKNESS VALUES AND 850/700 MB TEMPERATURES WILL PEAK BY MONDAY AFTERNOON. THUS...AM EXPECTING THE WARMEST TEMPERATURES TO OCCUR ON MONDAY...FOLLOWED BY A GRADUAL COOLING TREND DURING THE WEEK AS THE AFOREMENTIONED RIDGE SLIDES TO THE WEST. ON MONDAY...HIGHS WILL LIKELY REACH OR EXCEED THE CENTURY MARK ACROSS THE ENTIRE LUB CWA...WITH SOME LOCATIONS OFF OF THE CAPROCK REACHING OR EVEN EXCEEDING 110 DEGREES. GIVEN THAT HEAT INDICES ARE EXPECTED TO REACH AS HIGH AS 108 DEGREES ACROSS THE EXTREME SOUTHEASTERN PANHANDLE AND THE EASTERN ROLLING PLAINS /COMBINED WITH OVERNIGHT LOWS REMAINING ABOVE 75 DEGREES/...WILL EXTEND THE HEAT ADVISORY THROUGH TUESDAY MORNING IN THE AFOREMENTIONED AREAS. IN ADDITION TO THE HEAT...THERE WILL BE A SLIGHT CHANCE FOR SOME THUNDERSTORMS ACROSS THE EXTREME SOUTHWESTERN PANHANDLE SUNDAY EVENING AS A PLUME OF MONSOONAL MOISTURE REMAINS LOCATED ACROSS THE WESTERN SOUTH PLAINS AND SOUTHERN PANHANDLE. BY MONDAY EVENING MODELS CONTINUE TO SHOW A FRONT PUSHING INTO THE FAR NORTHERN ZONES AND POTENTIALLY TRIGGERING OFF A FEW ISOLATED STORMS... THOUGH GIVEN THE STRENGTH OF THE CAP AM THINKING THIS MAY BE OVER DONE AND HAVE OPTED TO KEEP POPS SILENT EXCEPT IN NORTHWEST PARMER COUNTY. THE FRONT WILL RETREAT NORTHWARD ON TUESDAY AND WEDNESDAY AS THE UPPER-RIDGE CONTINUES TO FLATTEN. MODELS HAD BEEN INDICATING THAT THE FRONT MAY MAKE ANOTHER PUSH AT THE AREA WEDNESDAY NIGHT AND THURSDAY AS ANOTHER UPPER-LEVEL TROUGH ROTATES ACROSS THE NORTHERN PLAINS INTO THE GREAT LAKES. HOWEVER...RECENT TRENDS HAVE KEPT THE FRONT WELL TO THE NORTH AND EAST OF THE REGION. THUS...DID NOT MAKE TOO MANY CHANGES TO TEMPERATURES AND GENERALLY HAVE KEPT POPS SILENT ACROSS THE ENTIRE LUB CWA THROUGH THE PERIOD. DESPITE SOME RELATIVE COOLING...TEMPERATURES WILL STILL BE HOT BY THE END OF THE WORK WEEK AS THE HIGHS SHOULD REACH THE UPPER 90S TO 100 DEGREES ON THE CAPROCK AND 101-106 OFF THE CAPROCK. && .PRELIMINARY POINT TEMPS/POPS... FRIONA 69 98 68 101 67 / 20 20 20 10 10 TULIA 70 100 71 103 71 / 20 20 10 10 10 PLAINVIEW 71 100 71 103 70 / 20 10 10 10 10 LEVELLAND 71 100 71 103 71 / 10 10 10 10 10 LUBBOCK 72 101 74 104 73 / 10 10 10 10 10 DENVER CITY 72 101 70 104 71 / 10 10 10 10 10 BROWNFIELD 71 101 71 105 71 / 10 10 10 10 10 CHILDRESS 77 107 79 110 79 / 20 20 10 10 10 SPUR 74 103 74 107 74 / 10 10 10 10 10 ASPERMONT 77 106 78 108 78 / 10 10 10 0 0 && .LUB WATCHES/WARNINGS/ADVISORIES... HEAT ADVISORY UNTIL 7 AM CDT TUESDAY FOR THE FOLLOWING ZONES: TXZ026-032-038-044. && 29/22
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LUBBOCK TX 520 AM CDT SAT AUG 6 2011 TXZ021>044-071030- PARMER-CASTRO-SWISHER-BRISCOE-HALL-CHILDRESS-BAILEY-LAMB-HALE- FLOYD-MOTLEY-COTTLE-COCHRAN-HOCKLEY-LUBBOCK-CROSBY-DICKENS-KING- YOAKUM-TERRY-LYNN-GARZA-KENT-STONEWALL- 520 AM CDT SAT AUG 6 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE EXTREME SOUTHERN TEXAS PANHANDLE...SOUTH PLAINS AND ROLLING PLAINS. .DAY ONE...TODAY AND TONIGHT VERY HOT AFTERNOON TEMPERATURES AND WARM OVERNIGHT LOWS WILL CREATE DANGEROUS HEAT CONDITIONS. A HEAT ADVISORY REMAINS IN EFFECT FOR THE EASTERN ROLLING PLAINS AND EXTREME SOUTHEASTERN TEXAS PANHANDLE. IN ADDITION...ISOLATED TO SCATTERED THUNDERSTORMS WILL BE POSSIBLE THIS AFTERNOON AND THIS EVENING...PRIMARILY ALONG AND NORTH OF A CHILDRESS TO ABERNATHY TO PLAINS LINE. ALTHOUGH WIDESPREAD SEVERE WEATHER IS NOT EXPECTED A FEW STORMS MAY PRODUCE STRONG DOWNBURST WIND GUSTS. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY OVERNIGHT LOW TEMPERATURES OF 75 DEGREES OR ABOVE AND DAYTIME HEAT INDEX VALUES OF 105 DEGREES OR MORE ARE EXPECTED TO CONTINUE ACROSS THE EXTREME SOUTHEASTERN PANHANDLE AND THE LOW ROLLING PLAINS THROUGH EARLY NEXT WEEK. A HEAT ADVISORY FOR THIS AREA REMAINS IN EFFECT THROUGH SUNDAY AFTERNOON. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED.
The Amarillo radar (KAMA), 135 km away, was scanning. The volume nearest the first event began at 20:29 UTC.
1 tornado. Local standard time, as filed.
Broadcast media relayed a report of a landspout tornado along US Highway 287 between Memphis and Estelline. No damage was reported.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2011Every state in 2011This day in weather historyThe tornado archive for Texas, 2011Warnings in Texas, August 2011
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: 330631.