An upper level shortwave in conjunction with a dryline, aided in the development of scattered showers and thunderstorms across the Big Country. Large hail and strong winds were the main hazards with these thunderstorms.
Every event with a place to put it. Tap one for its entry below.
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 SJT wrote it up.
An upper level shortwave in conjunction with a dryline, aided in the development of scattered showers and thunderstorms across the Big Country. Large hail and strong winds were the main hazards with these thunderstorms.
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 San Angelo, TX wrote its last area forecast discussion before the first event at Jun 20, 3:04 PM CST, 1 hour 26 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SAN ANGELO TX 404 PM CDT MON JUN 20 2011 .SHORT TERM... WV IMAGERY SHOWING A WELL DEFINED UPPER LOW OVER EASTERN COLORADO...WITH A NEGATIVE TILT SHORTWAVE/MID LEVEL JET MAX ROTATING NORTHEAST INTO THE CENTRAL PLAINS. ALSO...MID LEVEL WINDS WERE INCREASING ACROSS OKLAHOMA INTO NORTH TEXAS. AT THE SURFACE...A DRYLINE EXTENDED ALONG A VERNON TO SWEETWATER TO SANDERSON LINE. THE 3KM HRRR INDICATES STORMS EXPLODING ACROSS CENTRAL OKLAHOMA AND NORTH TEXAS BETWEEN 21Z AND 23Z...THEN SCATTERED TSTMS DEVELOPING ACROSS THE NORTHERN 2/3 OF WEST CENTRAL TEXAS AFTER 23Z THROUGH THIS EVENING. A FEW STORMS MAY BE SEVERE DUE TO SBCAPES OF 2000 TO 2500 J/KG AND 0-6KM SHEAR OF 35 TO 40 KNOTS. THE MAIN THREAT WILL BE DAMAGING WINDS DUE TO DCAPES OF 1000 TO 1500 KG. ALSO...REAL INTENSE ELEVATED CORES MAY PRODUCE ISOLATED LARGE HAIL. FOR TUESDAY...WEAK COLD FRONT WILL MOVE SLOWLY SOUTH ACROSS THE NORTHERN HALF OF WEST CENTRAL TEXAS. GOING WITH CHANCE POPS ACROSS MUCH OF THE AREA BY TUESDAY AFTERNOON. A FEW STORMS MAY BE SEVERE DUE TO SBCAPES OF 2000 TO 3000 J/KG AND 0-6KM SHEAR OF 35 TO 40 KNOTS. SLIGHTLY COOLER TEMPERATURES FOR TUESDAY...WITH HIGHS IN THE MID 90S TO AROUND 100. .LONG TERM... POSSIBLE RAIN CHANCES FOR TUESDAY NIGHT LINGERING INTO WEDNESDAY NIGHT. THE COLD FRONT WILL STALL ACROSS THE CWA TUESDAY AFTERNOON... REMAINING A FOCUS FOR CONVECTION TO DEVELOP WEDNESDAY NIGHT. ONE NEGATIVE FACTOR WITH RESPECT TO RAIN CHANCES WILL BE A LACK OF A WELL-DEFINED SHORTWAVE ALOFT IMPACTING THE AREA. HOWEVER...AS COOLING ALOFT TAKES PLACE...VERY LITTLE CONVECTIVE INHIBITION WILL BE IN PLACE TO IMPEDE UPWARD MOTION ALONG THE LOW LEVEL CONVERGENCE OF THE FRONT. PRECIPITABLE WATER VALUES WILL RANGE FROM 1 TO 1.5 INCHES ACROSS THE FRONTAL BOUNDARY...SO WE COULD SEE SOME LOCALIZED RAINFALL TOTALS OF UP TO AN INCH. HOWEVER...MOST AREAS AFFECTED BY THE RAINFALL WILL LIKELY SEE ONE HALF INCH OR LESS. FRONTAL BOUNDARY PLACEMENT IS PROBLEMATIC AT THIS TIME...BUT EXPECT THE FRONT TO BE AS FAR SOUTH AS THE CONCHO VALLEY AND HEARTLAND AREAS. WE MAY SEE SOME LINGERING PRECIPITATION FROM WEDNESDAY INTO WEDNESDAY NIGHT AS WELL SO HAVE KEPT THE SLIGHT CHANCE POPS IN THE FORECAST. SHOULD THE AREA RECEIVE RAINFALL...THERE WILL BE LITTLE IMPACT ON THE LONG TERM DROUGHT CONDITIONS. THE AREA NEEDS SEVERAL INCHES OF RAINFALL TO MAKE A SIGNIFICANT IMPACT ON THE CURRENT DROUGHT. FOLLOWING THE POSSIBILITY OF RAINFALL THROUGH MIDWEEK...THE UPPER LEVEL RIDGE WILL SET BACK UP OVER THE AREA BRINGING HOT SUMMER TEMPERATURES BACK INTO THE FORECAST FROM THURSDAY THROUGH NEXT WEEK. && .FIRE WEATHER... CRITICAL FIRE WEATHER CONDITIONS WILL CONTINUE THIS AFTERNOON AND EVENING DUE TO A COMBINATION OF RH VALUES LESS THAN 20 PERCENT...SOUTH WINDS OF 15 TO 25 MPH AND EXTREME TO EXCEPTIONAL DROUGHT CONDITIONS. ALSO...THERE ARE SEVERAL ON GOING WILDFIRES ACROSS WEST CENTRAL TEXAS. A RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM FOR THE BIG COUNTRY...CONCHO VALLEY...HEARTLAND...AND CROCKETT COUNTY. ALSO...ISOLATED TO SCATTERED THUNDERSTORMS TONIGHT MAY PRODUCE STRONG AND ERRATIC WINDS NEAR WILDFIRES. ALSO...ADDITIONAL LIGHTNING INDUCED WILDFIRES ARE POSSIBLE. && .PRELIMINARY POINT TEMPS/POPS... ABILENE 75 94 71 95 72 / 20 40 40 10 10 SAN ANGELO 78 100 72 98 73 / 10 30 40 20 10 JUNCTION 78 97 74 96 73 / 10 20 40 20 20 && .SJT WATCHES/WARNINGS/ADVISORIES... LAKE WIND ADVISORY UNTIL 7 PM CDT THIS EVENING FOR THE FOLLOWING ZONES: BROWN...COKE...COLEMAN...CONCHO...HASKELL...JONES... NOLAN...RUNNELS...TAYLOR...TOM GREEN. RED FLAG WARNING UNTIL 10 PM CDT THIS EVENING FOR THE FOLLOWING ZONES: BROWN...CALLAHAN...COKE...COLEMAN...CONCHO...CROCKETT... FISHER...HASKELL...IRION...JONES...MCCULLOCH...NOLAN...RUNNELS... SAN SABA...SHACKELFORD...STERLING...TAYLOR...THROCKMORTON...TOM GREEN. && 21/20
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SAN ANGELO TX 314 PM CDT MON JUN 20 2011 TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139- 140-154-155-168>170-212015- FISHER-NOLAN-STERLING-COKE-RUNNELS-IRION-TOM GREEN-CONCHO- CROCKETT-SCHLEICHER-SUTTON-HASKELL-THROCKMORTON-JONES-SHACKELFORD- TAYLOR-CALLAHAN-COLEMAN-BROWN-MCCULLOCH-SAN SABA-MENARD-KIMBLE- MASON- 314 PM CDT MON JUN 20 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WEST CENTRAL TEXAS. .DAY ONE...THIS AFTERNOON AND TONIGHT A RED FLAG WARNING FOR CRITICAL FIRE DANGER IS IN EFFECT FOR MUCH OF WEST CENTRAL TEXAS UNTIL 10 PM THIS EVENING. STRONG SOUTH WINDS...VERY DRY AIR AND HOT TEMPERATURES WILL BRING DANGEROUS FIRE WEATHER CONDITIONS. AVOID OUTSIDE ACTIVITIES THAT MAY PRODUCE SPARKS AND DISPOSE OF CIGARETTES CAREFULLY. ISOLATED TO SCATTERED THUNDERSTORMS ARE POSSIBLE OVERNIGHT...MAINLY ALONG AND NORTH OF A STERLING CITY TO BROWNWOOD LINE. THE MAIN THREAT WILL BE DAMAGING WINDS. HAIL WILL ALSO BE POSSIBLE. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THERE IS A CHANCE OF THUNDERSTORMS ACROSS WEST CENTRAL TEXAS TUESDAY AND WEDNESDAY. A FEW STORMS COULD BECOME SEVERE. THE MAIN THREATS WILL BE DAMAGING WINDS AND LARGE HAIL. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED THIS EVENING IN THE BIG COUNTRY.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
1216 PM CDT MON JUN 20 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1212 PM WILDFIRE 10 NW GRAPE CREEK 31.68N 100.67W
06/20/2011 E1250 ACRE TOM GREEN TX FOREST SERVICE
THE WILSON RANCH FIRE IS BURNING APPROXIMATELY 10 MILES
NORTHWEST OF GRAPE CREEK. THE FIRE IS ESTIMATED TO BE 50
PERCENT CONTAINED AND APPROXIMATELY 1250 ACRES.
&&
EVENT NUMBER SJT1100210
SNPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
313 PM CDT MON JUN 20 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0220 PM WILDFIRE 11 E HASKELL 33.16N 99.54W
06/20/2011 E5000 ACRE HASKELL TX FOREST SERVICE
THE WEISE FIRE IS BURNING NEAR HIGHWAY 380
APPROXIMATELY 11 MILES EAST OF HASKELL. THE FIRE IS
CURRENTLY ESTIMATED TO BE 5000 ACRES.
&&
EVENT NUMBER SJT1100211
SNSPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANGELO TX 458 PM CDT MON JUN 20 2011 TXZ099-202230- THROCKMORTON TX- 458 PM CDT MON JUN 20 2011 ...SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 530 PM CDT FOR THROCKMORTON COUNTY... AT 455 PM CDT...A STRONG THUNDERSTORM WAS INDICATED BY NATIONAL WEATHER SERVICE DOPPLER RADAR OVER NORTH CENTRAL THROCKMORTON COUNTY...OR ABOUT 11 MILES NORTH OF THROCKMORTON...MOVING NORTHEAST AT 45 MPH. THE STRONG THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF... NORTHEASTERN THROCKMORTON COUNTY. PEA SIZE HAIL AND WIND GUSTS TO 50 MPH ARE LIKELY WITH THIS STORM. HEAVY RAINFALL WILL CAUSE PONDING OF WATER ON AREA ROADWAYS... ESPECIALLY THOSE IN POOR DRAINAGE AREAS. RESIDENTS ARE ENCOURAGED TO MONITOR THE SITUATION CLOSELY AND BE PREPARED TO TAKE THE PROPER ACTIONS SHOULD A WARNING BE ISSUED. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT MONDAY EVENING FOR NORTH CENTRAL TEXAS.
The Dyess AFB radar (KDYX), 85 km away, was scanning. The volume nearest the first event began at 22:31 UTC.
3 thunderstorm wind, 2 hail, 1 funnel cloud. Local standard time, as filed.
Golf ball sized hail was reported covering the ground according to a gas station attendant.
A trained spotter located 2 miles north of Woodson reported tennis ball size hail covering the ground.
A trained storm spotter witnessed a funnel develop and dissipate several times. The funnel never touched the ground.
A 78 MPH wind gust was measured at Dyess Air Force Base at 1212 AM CDT.
A sign was toppled by thunderstorm winds at Firestone near South 1st and Pioneer. The West To Go Store on South 1st and Leggett, had its roof blown off with debris scattered across the parking lot. There were also numerous reports of tree limbs down in the area. Satellite dishes were damaged by thunderstorm winds at KEAN Radio.
A fire chief in View, reported several power poles down and a metal roof blown off of a residence. He also reported that Buffalo Gap had power poles down.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2011Every state in 2011This day in weather historyWarnings in Texas, June 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: 328510, 328513, 328523, 328530, 328555, 328564.