Isolated severe thunderstorms formed over the west during the late night hours of the 15th and predawn hours of the 16th.
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 EWX wrote it up.
Isolated severe thunderstorms formed over the west during the late night hours of the 15th and predawn hours of the 16th.
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 Austin/San Antonio, TX wrote its last area forecast discussion before the first event at May 15, 7:50 PM CST, 1 hour 10 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 850 PM CDT FRI MAY 15 2009 .UPDATE... MADE A QUICK UPDATED TO INCREASE POPS/QPF OVER THE SWRN COUNTIES WHERE S/W LIFTING OUT OF NE MEXICO TOWARD THE RIO GRANDE AND CONVECTION WAS INCREASING RAPIDLY AS WARM MOIST-UNSTABLE AIR WAS OUT AHEAD OF THE TROF OVER THE RIO GRANDE PLAINS. APPEARS MAIN THREAT FROM THE THESE STORMS WILL BE LOCALLY HEAVY RAIN. && .PREV DISCUSSION... /ISSUED 632 PM CDT FRI MAY 15 2009/ AVIATION... BETWEEN THE LATE AFTERNOON SHOWERS EAST OF KDRT...AND THE ANVIL BLOW OFF FROM THE THUNDERSTORMS OVER THE SIERRAS, KDRT WILL HAVE CUMULONIMBUS CLOUDS VISIBLE FROM THE TERMINAL UNTIL 06Z. OTHERWISE, MVFR CEILINGS WILL REDEVELOP OVER KSSF-KAUS BY 06Z AND SPREAD WEST TO KDRT BY 11Z. ISOLATED SHOWERS ARE POSSIBLE FROM KSSF TO KAUS BETWEEN 08Z AND 12Z. CEILINGS WILL LIFT TO VFR LEVELS BY 17Z. DAYTIME HEAT AND AN APPROACHING COLD FRONT WILL BRING THUNDERSTORMS TO THE TERMINALS AFTER 21Z. PREV DISCUSSION... /ISSUED 354 PM CDT FRI MAY 15 2009/ DISCUSSION... ISOLATED SHOWERS AND THUNDERSTORMS ACROSS THE EASTERN HALF OF SOUTH CENTRAL TEXAS WILL DIMINISH THIS EVENING WITH THE LOSS OF SURFACE HEATING. A SLIGHT CHANCE FOR THUNDERSTORMS WILL CONTINUE ACROSS OUR WESTERNMOST COUNTIES OVERNIGHT AS A SHORTWAVE TROUGH OVER NORTHERN MEXICO CREEPS EASTWARD. THE ATMOSPHERE IS GETTING PRIMED FOR A THUNDERSTORM EVENT LATE SATURDAY THROUGH SATURDAY NIGHT. A COLD FRONT IS FORECAST TO PUSH INTO OUR NORTHERN COUNTIES BETWEEN 21-24Z SATURDAY THEN PROGRESS SLOWLY TO THE COAST BY 12Z SUNDAY. THUNDERSTORMS ARE FORECAST TO BREAK-OUT AHEAD OF THE FRONT AS THE WEAK SHORTWAVE TROUGH CURRENTLY OVER NORTHERN MEXICO MOVES OVER OUR AREA. THE FRONT WILL HELP TO ENHANCE AND ORGANIZE THUNDERSTORMS SATURDAY EVENING AS IT PROGRESSES SOUTHWARD. THE SPC DAY2 CONVECTIVE OUTLOOK SHOWS ONLY VAL VERDE COUNTY IN THE SLIGHT RISK AREA FOR SEVERE THUNDERSTORMS ON SATURDAY AND SATURDAY NIGHT...WITH THE REMAINDER OF OUR AREA IN THE GENERAL THUNDERSTORMS AREA. THIS FITS WELL WITH THE 12Z GFS AND NAM CONVECTIVE PARAMETERS WEVE LOOKED AT FOR THE SAME TIME PERIOD. GIVEN THE SLOWER SPEED OF THE FRONT AND PWATS FORECAST TO INCREASE TO BETWEEN 1.5 AND 2.0 INCHES ACROSS OUR AREA LATE SATURDAY...WEVE DECIDED TO INCLUDE A MENTION OF LOCALLY HEAVY RAINFALL. RAINFALL AMOUNTS WILL BE GREATEST OVER THE EASTERN HILL COUNTRY AND ALONG INTERSTATE 35...WHERE 1-2 INCHES WILL BE COMMON. PRECIP/CLOUDS WILL BE SLOW TO CLEAR-OUT ON SUNDAY AS A RIDGE OF HIGH PRESSURE GRADUALLY TAKES OVER. NEXT WEEK WILL BE DRY WITH TEMPERATURES BELOW NORMAL ON MONDAY...THEN TRENDING ABOVE NORMAL BY WEDNESDAY AND CONTINUING ABOVE NORMAL THROUGH THE END OF THE WEEK. THE && .PRELIMINARY POINT TEMPS/POPS... AUSTIN CAMP MABRY 72 87 58 77 58 / 10 40 60 20 - AUSTIN BERGSTROM INTL AIRPORT 70 86 59 75 56 / 10 30 60 20 - NEW BRAUNFELS MUNI AIRPORT 71 89 59 76 56 / 10 30 60 20 - BURNET MUNI AIRPORT 69 81 56 75 54 / 10 40 50 20 - DEL RIO INTL AIRPORT 74 90 63 81 60 / 40 40 70 20 - GEORGETOWN MUNI AIRPORT 71 83 57 75 55 / 10 50 50 20 - HONDO MUNI AIRPORT 72 89 61 78 57 / 20 30 70 20 - SAN MARCOS MUNI AIRPORT 71 87 58 75 56 / 10 30 60 20 - LA GRANGE - FAYETTE REGIONAL 72 87 62 77 58 / 10 30 50 20 - SAN ANTONIO INTL AIRPORT 72 87 61 77 58 / 10 30 60 20 - STINSON MUNI AIRPORT 73 89 63 78 58 / 10 30 60 20 - && .EWX WATCHES/WARNINGS/ADVISORIES... NONE. && 01/06
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 526 AM CDT FRI MAY 15 2009 TXZ171>173-183>194-202>209-217>225-228-161100- LLANO-BURNET-WILLIAMSON-VAL VERDE-EDWARDS-REAL-KERR-BANDERA- GILLESPIE-KENDALL-BLANCO-HAYS-TRAVIS-BASTROP-LEE-KINNEY-UVALDE- MEDINA-BEXAR-COMAL-GUADALUPE-CALDWELL-FAYETTE-MAVERICK-ZAVALA- FRIO-ATASCOSA-WILSON-KARNES-GONZALES-DE WITT-LAVACA-DIMMIT- 526 AM CDT FRI MAY 15 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL TEXAS. .DAY ONE...TODAY AND TONIGHT... ISOLATED SEVERE THUNDERSTORMS ARE POSSIBLE ALONG THE RIO GRANDE LATE THIS AFTERNOON INTO EARLY TONIGHT. LARGE HAIL AND DAMAGING WINDS ARE THE SEVERE WEATHER THREATS. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY... THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS VAL VERDE COUNTY SATURDAY AFTERNOON INTO SATURDAY NIGHT. LARGE HAIL WILL BE THE PRIMARY SEVERE WEATHER THREAT. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED FOR TODAY OR TONIGHT.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 750 PM CDT FRI MAY 15 2009 TXZ202-203-160145- KINNEY-UVALDE- 750 PM CDT FRI MAY 15 2009 ...A STRONG THUNDERSTORM WAS AFFECTING UVALDE COUNTY... AT 748 PM CDT...NWS METEOROLOGISTS ARE TRACKING A STRONG THUNDERSTORM 5 MILES SOUTHEAST OF BLEWETT...OR 14 MILES SOUTHWEST OF UVALDE... MOVING NORTHWEST AT 10 MPH. PEOPLE IN SOUTHEASTERN KINNEY AND SOUTHWESTERN UVALDE COUNTIES... INCLUDING THE FOLLOWING LOCATIONS...BLEWETT AND DABNEY...SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR POSSIBLE WARNINGS AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD SEVERE WEATHER THREATEN. PEA SIZE HAIL...AND WINDS 30 TO 40 MPH ARE EXPECTED WITH THIS STORM.
The Laughlin AFB radar (KDFX), 51 km away, was scanning. The volume nearest the first event began at 02:57 UTC.
1 thunderstorm wind, 1 hail. Local standard time, as filed.
Power lines were reported down between Eagle Pass and La Pryor on Highway 57.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2009Every state in 2009This day in weather historyWarnings in Texas, May 2009
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: 163720, 163721.