A surface trough resulted in isolated showers and thunderstorms across parts of the Western Concho Valley. A few of the storms produced isolated damaging microburst winds.
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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 SJT wrote it up.
A surface trough resulted in isolated showers and thunderstorms across parts of the Western Concho Valley. A few of the storms produced isolated damaging microburst winds.
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 Aug 7, 5:15 PM CST, 1 hour earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SAN ANGELO TX 615 PM CDT WED AUG 7 2013 .DISCUSSION... See 00z aviation discussion below. && .AVIATION... Regional radars indicate scattered thunderstorms over the western Concho Valley and Crockett County. The activity was moving slowly north. These storms are mainly being driven by strong surface heating and weak upper level support...and should mostly dissipate by 03z. will keep VCSH for the western terminals through early this evening. Otherwise...expect VFR conditions the next 24 hours. 21 && .PREV DISCUSSION... /ISSUED 355 PM CDT WED AUG 7 2013/ .SHORT TERM... /Today and Thursday/ Temps have really taken off across West Central TX this afternoon. Readings as high as 106 degrees at both San Angelo and the Weinert mesonet station have been observed with heat indices above 100 degrees basically areawide. The heat advisory looks to be in good order based on the two day criteria and will be left as is. It is scheduled to expire at 8 PM this evening. San Angelo's record high for today is 107 degrees (set in 1924) and Abilene's record is 106 degrees (set in 2003). Both of these numbers have the potential to be reached today. The compact upper-level cyclone to our south near Big Bend is moving slowly to the north-northeast this afternoon. This feature was poorly sampled by the upper-air network this morning so the models have not been able to resolve it very well. Temperatures aloft are likely to cool slightly as this feature approaches and we are favorably located to see enhanced upper level divergence, especially over the western zones where the diurnal cu field has really taken off. Showers and thunderstorms have formed over much of the Trans-Pecos region and Permian Basin, a bit farther east than at this time yesterday. The cu over the western Concho Valley are becoming more agitated per the classic "look out the window" observation. I expect precipitation to develop to the west of San Angelo within the next hour with isolated convection possible across much of the area later this afternoon through this evening. Any storms that develop will be diurnally driven and are expected to dissipate well before midnight. Minimum temperatures will be in the mid to upper 70s across most of the area. On Thursday, we'll see the surface trough edge into the western zones, setting up a situation similar to that of today, albeit farther east. I expect slightly earlier initiation of isolated to scattered showers and t-storms, mainly west of a line from Sonora, to Paint Rock, to Cross Plains. The best chances look to be over the western Big Country and Concho Valley. We'll still see well above normal temperatures, with highs reaching into the 99 to 103 degree range. Johnson .LONG TERM... /Thursday night into Friday night/ Little change in the extended forecast. A weak cold front moves into the Big Country Friday afternoon and gradually pushes south into the Concho Valley Friday night. Both the NAM and GFS models have similar solutions, but while the NAM has scattered showers and thunderstorms, the GFS precipitation algorithm is nearly dry under the upper ridge. Kept a slight chance over the Big Country and Concho Valley. /Saturday and Sunday/ A weak easterly wave moves across South Texas. Unfortunately it will have little affect on the upper ridge farther north in West Central Texas. High temperatures may fall 2 to 3 degrees as the weak cold front dissipates, bringing light easterly winds to the region. /Monday into Wednesday/ The upper ridge will shift west midweek, with weak northerly flow aloft developing over West Texas. Cannot rule out isolated thunderstorms over the Big Country, but the potential is too low to include in Zone forecast. && .PRELIMINARY POINT TEMPS/POPS... ABILENE 77 101 76 99 72 / 20 20 20 20 10 SAN ANGELO 76 103 76 101 73 / 20 20 20 20 5 JUNCTION 76 102 74 101 73 / 10 10 5 10 5 && .SJT WATCHES/WARNINGS/ADVISORIES... HEAT ADVISORY UNTIL 8 PM CDT THIS EVENING FOR THE FOLLOWING ZONES: HASKELL...JONES...SHACKELFORD...THROCKMORTON. && 04
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SAN ANGELO TX 235 PM CDT WED AUG 7 2013 TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139- 140-154-155-168>170-081100- 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- 235 PM CDT WED AUG 7 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WEST CENTRAL TEXAS. .DAY ONE...THIS AFTERNOON AND TONIGHT VERY HOT TEMPERATURES WILL PERSIST ACROSS WEST CENTRAL TEXAS THROUGH EARLY THIS EVENING. HEAT INDEX VALUES EXCEEDING 100 DEGREES WILL BE COMMON ACROSS THE ENTIRE FORECAST AREA...WITH HEAT INDICES AT OR ABOVE 105 DEGREES IN HASKELL...JONES...SHACKELFORD...AND THROCKMORTON COUNTIES. A HEAT ADVISORY IS IN EFFECT FOR THIS AREA UNTIL 8 PM. PROLONGED EXPOSURE TO THESE HOT CONDITIONS WILL INCREASE THE RISK OF HEAT RELATED ILLNESSES. DRINK PLENTY OF NON ALCOHOLIC FLUIDS...AVOID OUTDOOR WORK DURING AFTERNOON HOURS...AND WEAR LIGHTWEIGHT...LIGHT COLORED CLOTHING. ISOLATED SHOWERS AND THUNDERSTORMS WILL CONTINUE THROUGH THIS EVENING...GENERALLY ALONG AND WEST OF A SONORA...TO PAINT ROCK...TO CROSS PLAINS LINE. WHILE ORGANIZED SEVERE WEATHER IS NOT EXPECTED... SOME STORMS MAY PRODUCE LOCALIZED GUSTY WINDS AND DANGEROUS CLOUD TO GROUND LIGHTNING. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE ON THURSDAY AND FRIDAY... MAINLY ACROSS THE BIG COUNTRY...CONCHO VALLEY AND HEARTLAND. ORGANIZED SEVERE WEATHER IS NOT ANTICIPATED. HOWEVER...A FEW STORMS MAY PRODUCE LOCALIZED GUSTY WINDS IN ADDITION TO DANGEROUS CLOUD TO GROUND LIGHTNING. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME. JOHNSON
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
528 PM CDT WED AUG 7 2013
TXZ076-072330-
CROCKETT TX-
528 PM CDT WED AUG 7 2013
...SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 630 PM CDT FOR
CROCKETT COUNTY...
AT 521 PM CDT...A STRONG THUNDERSTORMS WERE INDICATED BY NATIONAL
WEATHER SERVICE DOPPLER OVER NORTHWEST CROCKETT COUNTY
NORTH OF I-10...OR ABOUT 18 MILES NORTH OF SHEFFIELD...MOVING NORTH
AT 5 MPH.
THE STRONG THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF...
NORTHWESTERN CROCKETT COUNTY.
FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE
INDOORS IMMEDIATELY! LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.
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.
LAT...LON 3108 10234 3109 10128 3107 10125 3060 10124
3060 10166 3063 10167 3065 10173 3071 10182
3075 10182 3076 10184 3086 10186 3089 10189
3092 10189 3098 10199 3100 10218 3103 10222
3103 10227
TIME...MOT...LOC 2225Z 171DEG 6KT 3095 10175SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
641 PM CDT WED AUG 7 2013
TXZ064-071-072-080045-
IRION TX-STERLING TX-TOM GREEN TX-
641 PM CDT WED AUG 7 2013
...SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 745 PM CDT FOR
IRION...STERLING AND TOM GREEN COUNTIES...
AT 634 PM CDT...A STRONG THUNDERSTORM WAS INDICATED BY NATIONAL
WEATHER SERVICE DOPPLER RADAR OVER NORTH CENTRAL IRION COUNTY...OR
ABOUT 22 MILES NORTHWEST OF MERTZON...MOVING NORTH AT 10 MPH.
THE STRONG THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF...
NORTHWESTERN IRION...NORTHWESTERN TOM GREEN AND SOUTHERN STERLING
COUNTIES.
FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE
INDOORS IMMEDIATELY! LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.
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.
LAT...LON 3139 10127 3146 10128 3177 10127 3177 10085
3130 10085 3132 10128 3138 10128
TIME...MOT...LOC 2338Z 194DEG 9KT 3148 10110The San Angelo radar (KSJT), 23 km away, was scanning. The volume nearest the first event began at 00:13 UTC.
2 thunderstorm wind. Local standard time, as filed.
A trained spotter reported several large tree limbs down.
A trained spotter reported a 65 mph wind gust.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2013Every state in 2013This day in weather historyWarnings in Texas, August 2013
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: 475070, 475071.