Flash Flooding and Hail in Texas, May 9 to 10, 2013

Name: Flash Flooding and Hail in Texas, May 9 to 10, 2013
Start: 2013-05-09T18:50
End: 2013-05-10T21:45
Location: Texas

May 9 to 10, 2013 · NWS EWX · 84 events in 22 counties and zones

A series of upper level short wave troughs and a cold front brought severe thunderstorms to South Central Texas on consecutive days. These storms mainly produced large hail with several reports of damaging wind gusts and localized flash flooding.

Where it happened

Every event with a place to put it. Tap one for its entry below.

Tornadoes
Tropical storms and surge
Floods
Wind
Hail
Winter weather
Heat and drought
Cold
Fire, smoke and dust
Marine and coastal
Other

Open the live radar over this ground

The toll

Deaths: 0
Injuries: 0
Property damage: $49,000
Crop damage: None recorded
Events: 84

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.

What happened

The episode as NWS EWX wrote it up.

What forecasters said that day

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 9, 5:52 PM CST, 58 minutes earlier.

Area forecast discussion, May 9, 5:52 PM CST, 58 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
652 PM CDT THU MAY 9 2013

.UPDATE...
SEE AVIATION FOR 00Z TAF DISCUSSION.

&&

.AVIATION...
00Z TAFS ARE SOMEWHAT SIMPLIFIED TO REFLECT TIMING UNCERTAINTIES OF
A COMPLICATED PATTERN. OUTFLOW BOUNDARY FROM EARLIER CENTRAL TX
CONVECTION HAS PROMPTED LOWER CIGS OVER THE I-35 TERMINALS THAT
COULD TEMPORARILY MIX OUT BEFORE REFORMING AS CIGS OF 1-2 KFT
THIS EVENING. BY LATE EVENING...CONVECTION UPSTREAM OVER MEXICO
AND WEST CENTRAL TEXAS SHOULD HAVE LESS OF AN IMPACT AND ALLOW FOR
MORE UNIFORM CLOUD BASES...BUT THE PATTERN ALOFT SHOWS WIND SHEAR
CAPABLE OF PRODUCING OVERNIGHT CONVECTION AND SHOWERS. MOST OF THE
MODEL DATA SUGGEST MINIMAL OVERNIGHT CONVECTION WITH INTERMITTENT
LIGHT SHOWERS THAT SHOULD PROVIDE A MININMAL IMPACT TO CIGS AND
VSBYS. TOWARD DAYBREAK...A HANDFUL OF MODELS ARE DEPICTING
DESTABILIZATION OVER THE EDWARDS PLATEAU AND EXPANDING THE CHANCE
OF SHOWERS AND THUNDERSTORMS EAST INTO THE I-35 CORRIDOR BY NOON.
THIS PATTERN WAS ALSO SEEN IN PRIOR MODEL RUNS SO THE TAFS WILL
REFLECT THIS SCENARIO FOR ENHANCED CHANCES FOR IFR AND CONVECTIVE
WEATHER IMPACTS ON THE METRO CITIES FROM 14-20Z.

&&

.PREV DISCUSSION... /ISSUED 634 PM CDT THU MAY 9 2013/

UPDATE...
SEVERE THUNDERSTORM WATCH #150 FOR WILLIAMSON COUNTY HAS BEEN
CANCELLED A LITTLE EARLY. DUE TO THE ONGOING ACTIVITY OVER WEST
CENTRAL TEXAS...WE HAVE EXTENDED THE SEVERE THUNDERSTORM WATCH FOR
LLANO AND BURNET COUNTIES UNTIL 9 PM CDT.

PREV DISCUSSION... /ISSUED 524 PM CDT THU MAY 9 2013/

UPDATE...
WE HAVE UPDATED THE FORECAST TO MENTION THE POSSIBILITY OF SEVERE
STORMS ACROSS ALL OF SOUTH CENTRAL TEXAS THIS EVENING. THERE ARE
SEVERAL DIFFERENT AREAS FOR POTENTIAL STORM DEVELOPMENT.
CURRENTLY... SEVERE STORMS ACROSS WEST CENTRAL COULD AFFECT THE
HILL COUNTRY BY MID-EVENING. A FEW STORMS ARE ALSO DEVELOPING
ALONG THE DRYLINE ACROSS THE EDWARDS PLATEAU. WE ARE ALSO
MONITORING STORM DEVELOPMENT OVER THE SERRANIAS DEL BURRO
MOUNTAINS...WHICH WILL LIKELY MOVE INTO THE RIO GRANDE PLAINS.

PREV DISCUSSION... /ISSUED 302 PM CDT THU MAY 9 2013/

SHORT TERM (TONIGHT THROUGH FRIDAY NIGHT)...
THIS AFTERNOON THREE CLUSTERS OF THUNDERSTORMS WERE OCCURRING IN
AND AROUND SOUTH CENTRAL TEXAS. ONE CLUSTER EAST OF BURNET AND
WILLIAMSON COUNTIES INCLUDES AN ACCELERATING BOW ECHO AND IS
ASSOCIATED WITH OUTFLOWS FROM THE EARLIER MCS. ANOTHER CLUSTER
OVER THE HIGHER ELEVATIONS OF THE SIERRA MADRE WEST OF DEL RIO IS
DUE TO STRONG UPSLOPE FLOW AND FINALLY THE CLUSTER BETWEEN SAN
ANGELO AND SWEETWATER IS ASSOCIATED WITH THE INTERSECTION OF THE
DRY-LINE AND COLD FRONT. ATTM IT APPEARS CONVECTION WILL FIRE THIS
AFTERNOON INTO THIS EVENING ON THE OUTFLOW BOUNDARY AS IT SINKS
SOUTHWARD ACROSS THE HILL COUNTRY AND NORTHEAST COUNTIES. TSTMS
OVER NORTHEAST MEXICO WILL ALSO HAVE THE POTENTIAL TO MOVE
EASTWARD OFF THE EASTERN SLOPES AND MAINTAIN INTENSITY CROSSING
THE RIO GRANDE THIS EVENING. FINALLY THE CONVECTION BETWEEN
SWEETWATER AND ABILENE MAY EVOLVE INTO ANOTHER MCS AND TRACK ESE.
THUS THE CHANCE FOR SHOWERS AND THUNDERSTORMS WILL CONTINUE INTO
THE EVENING HOURS WANING AFTER MIDNIGHT WITH THE LOSS OF HEATING.
THE BEST CHANCE FOR STRONG TO SEVERE THUNDERSTORMS THIS AFTERNOON
AND TONIGHT WILL BE ACROSS THE HILL COUNTRY AND NORTHEAST COUNTIES
MAINLY NORTH OF A LINE FROM HARPER TO SAN MARCOS TO SCHULENBURG.
ADDITIONAL SHOWERS AND THUNDERSTORMS ARE EXPECTED ON FRIDAY AS A
WEAK COLD FRONT SINKS SOUTHWARD PROVIDING SURFACE CONVERGENCE.
THERE IS STILL THE POTENTIAL FOR STRONG TO SEVERE THUNDERSTORMS ON
FRIDAY...MAINLY IN THE AFTERNOON AND EVENING DURING PEAK HEATING.

LONG TERM (SATURDAY THROUGH THURSDAY)...
THE CHANCE FOR SHOWERS AND THUNDERSTORMS WILL CONTINUE ON SATURDAY
AS THE WEAK AND SHALLOW FRONTAL BOUNDARY SINKS SOUTHWARD ACROSS THE
REGION. RAIN CHANCES ARE EXPECTED TO END SATURDAY EVENING AS THE UPPER
TROF AXIS MOVES SOUTHWARD INTO DEEP SOUTH TEXAS. THE CUT-OFF LOW OVER
NORTHERN MEXICO WILL EJECT TO THE NORTHEAST AS AN OPEN WAVE TUESDAY
AND WEDNESDAY OF NEXT WEEK. THIS WILL ONCE AGAIN BRING A SLIGHT CHANCE
OF SHOWERS TO SOUTH CENTRAL TEXAS.

RAINFALL TOTALS TONIGHT THROUGH SATURDAY NIGHT WILL RANGE FROM
ONE-HALF INCH ALONG THE RIO GRANDE TO 2 INCHES ACROSS OUR EASTERN
COUNTIES. THESE NUMBERS ARE BASIN AVERAGES WHILE POINT TOTALS WILL
BE SLIGHTLY HIGHER.

&&

.PRELIMINARY POINT TEMPS/POPS...
AUSTIN CAMP MABRY              68  82  64  78  61 /  50  60  50  30  10
AUSTIN BERGSTROM INTL AIRPORT  67  82  63  77  59 /  50  50  50  40  10
NEW BRAUNFELS MUNI AIRPORT     67  83  64  78  60 /  40  50  60  40  10
BURNET MUNI AIRPORT            66  80  61  76  58 /  60  70  40  30  10
DEL RIO INTL AIRPORT           70  90  67  81  63 /  20  30  50  30  20
GEORGETOWN MUNI AIRPORT        67  80  61  77  58 /  60  60  40  30  10
HONDO MUNI AIRPORT             69  85  65  79  60 /  20  40  60  40  10
SAN MARCOS MUNI AIRPORT        67  81  64  77  61 /  50  50  60  40  10
LA GRANGE - FAYETTE REGIONAL   69  83  66  78  62 /  50  50  50  40  10
SAN ANTONIO INTL AIRPORT       69  83  65  78  61 /  30  50  60  40  10
STINSON MUNI AIRPORT           69  84  66  78  62 /  30  50  60  40  10

&&

.EWX WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

MESOSCALE/AVIATION...18
SYNOPTIC/GRIDS...24

Hazardous weather outlook, May 9, 4:21 PM CST, 2 hours 29 minutes before

HAZARDOUS WEATHER OUTLOOK...CORRECTED
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
521 PM CDT THU MAY 9 2013

TXZ171>173-183>194-202>209-217>225-228-102230-
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-
521 PM CDT THU MAY 9 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL TEXAS.

.DAY ONE...TONIGHT...

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS TONIGHT ACROSS ALL
OF SOUTH CENTRAL TEXAS. A SERIES OF WEAK UPPER LEVEL DISTURBANCES
ALONG WITH A MOIST AND UNSTABLE AIR MASS AT LOW LEVELS WILL
PRODUCE FAVORABLE CONDITIONS FOR STRONG TO SEVERE THUNDERSTORMS.
LOCALLY HEAVY DOWNPOURS OF 1-2 INCHES ARE ALSO POSSIBLE FROM THE
STRONGER STORMS. THE POTENTIAL FOR SEVERE THUNDERSTORMS IS
EXPECTED TO DIMINISH IN THE EARLY MORNING HOURS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY...

WEAK UPPER LEVEL DISTURBANCES WILL INTERACT WITH A WEAK FRIDAY
COLD FRONT TO PRODUCE A GOOD CHANCE OF SHOWERS AND THUNDERSTORMS
FRIDAY THROUGH SATURDAY. THERE IS A SLIGHT RISK OF SEVERE
THUNDERSTORMS FRIDAY WITH THE PRIMARY THREAT BEING LARGE HAIL.

OTHERWISE NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER ACTIVATION STATEMENT...

SPOTTER ACTIVATION MAY BE NECESSARY TONIGHT OR FRIDAY.

In the hours before

Special weather statement, May 9, 2:01 PM CST, 4 hours 49 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
301 PM CDT THU MAY 9 2013

TXZ173-192>194-092045-
BASTROP-LEE-TRAVIS-WILLIAMSON-
301 PM CDT THU MAY 9 2013

...SIGNIFICANT WEATHER ADVISORY FOR BASTROP...WILLIAMSON...TRAVIS AND
WESTERN LEE COUNTIES UNTIL 345 PM CDT...

AT 248 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
LINE OF SHOWERS AND THUNDERSTORMS WITH STRONG GUSTY WINDS EXTENDING
FROM JARRELL TO BEE CAVE...AND MOVING EAST AT 10 MPH.

WIND GUSTS UP TO 50 MPH ARE EXPECTED WITH THESE STORMS...ALONG WITH
HEAVY RAIN. THIS LINE OF THUNDERSTORMS AND GUSTY WINDS ARE EXPECTED
TO MOVE ACROSS THE AUSTIN METRO AREA WITHIN THE NEXT 15 TO 20
MINUTES.

LOCATIONS NEAR THE PATH OF THESE STORMS INCLUDE...
  ROUND ROCK...
  AUSTIN...
  WINDEMERE...
  GRANGER...
  PFLUGERVILLE...
  AUSTIN BERGSTROM INT AP...
  TAYLOR...
  ELGIN...
  BASTROP...
  LEXINGTON...

THESE STORMS MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS... FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

THE HEAVY RAIN MAY FLOOD LOW LYING AREAS SUCH AS DITCHES...LOW WATER
CROSSINGS AND UNDERPASSES. DO NOT DRIVE YOUR VEHICLE ACROSS FLOODED
ROADWAYS.

LAT...LON 3075 9728 3071 9725 3047 9715 3053 9703
      3045 9687 2987 9729 3026 9799 3086 9758
      3085 9755
TIME...MOT...LOC 1958Z 289DEG 10KT 3081 9753 3025 9789

Special weather statement, May 9, 2:34 PM CST, 4 hours 16 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
334 PM CDT THU MAY 9 2013

TXZ173-190>194-208-092115-
BASTROP-BLANCO-CALDWELL-HAYS-LEE-TRAVIS-WILLIAMSON-
334 PM CDT THU MAY 9 2013

...SIGNIFICANT WEATHER ADVISORY FOR BASTROP...EXTREME EASTERN
BLANCO...EXTREME NORTHERN CALDWELL...SOUTHEASTERN WILLIAMSON...
TRAVIS...NORTHERN LEE AND NORTHERN HAYS COUNTIES UNTIL 415 PM CDT...

AT 322 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
LINE OF SHOWERS AND ISOLATED THUNDERSTORMS ALONG A LINE
EXTENDING FROM GRANGER DAM TO 6 MILES WEST OF BEE CAVE...AND MOVING
EAST AT 15 MPH.

WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THESE STORMS...ALONG WITH
HEAVY RAIN. THE AUSTIN METRO AREA AND VICINITY WILL BE AFFECTED BY
THIS ACTIVITY WITHIN THE NEXT 10 TO 15 MINUTES...INCLUDING
INTERSTATE I-35 FROM GRANGER TO BUDA.

LOCATIONS NEAR THE PATH OF THESE STORMS INCLUDE...
  ROUND ROCK...
  TANGLEWOOD FOREST...
  WINDEMERE...
  PFLUGERVILLE...
  TAYLOR...
  AUSTIN...
  AUSTIN BERGSTROM INT AP...
  ELGIN...
  LEXINGTON...
  BASTROP...

THESE STORMS MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS... FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

THE HEAVY RAIN MAY FLOOD LOW LYING AREAS SUCH AS DITCHES...LOW WATER
CROSSINGS AND UNDERPASSES. DO NOT DRIVE YOUR VEHICLE ACROSS FLOODED
ROADWAYS.

LAT...LON 2995 9743 3029 9821 3079 9740 3076 9730
      3073 9726 3047 9715 3056 9696 3054 9691
      3047 9689 3041 9681 3039 9681
TIME...MOT...LOC 2027Z 255DEG 11KT 3077 9731 3031 9803

Special weather statement, May 9, 4:33 PM CST, 2 hours 17 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
533 PM CDT THU MAY 9 2013

TXZ183-202-092330-
KINNEY-VAL VERDE-
533 PM CDT THU MAY 9 2013

...SIGNIFICANT WEATHER ADVISORY FOR VAL VERDE AND NORTHWESTERN KINNEY
COUNTIES UNTIL 630 PM CDT...

AT 530 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 12 MILES SOUTHWEST OF AMISTAD VILLAGE...OR 16
MILES WEST OF DEL RIO...MOVING NORTHEAST AT 30 MPH.

HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 40 MPH ARE
EXPECTED WITH THIS STORM...ALONG WITH FREQUENT DANGEROUS LIGHTNING.

LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...
  DEL RIO...
  AMISTAD VILLAGE...
  ROUGH CANYON REC AREA...
  DEVILS SHORES...

THOSE NEAR THE EASTERN SHORES OF AMISTAD RESERVOIR SHOULD PREPARE TO
TAKE COVER AS THIS STORM APPROACHES.

THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS... FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

LAT...LON 2972 10088 2951 10063 2933 10096 2937 10103
      2946 10110 2946 10115 2950 10117
TIME...MOT...LOC 2232Z 234DEG 27KT 2934 10115

Special weather statement, May 9, 6:09 PM CST, 41 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
709 PM CDT THU MAY 9 2013

TXZ217-228-100115-
DIMMIT-MAVERICK-
709 PM CDT THU MAY 9 2013

...SIGNIFICANT WEATHER ADVISORY FOR MAVERICK AND SOUTHWESTERN DIMMIT
COUNTIES UNTIL 815 PM CDT...

AT 704 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 18 MILES SOUTHWEST OF EL INDIO...MOVING NORTHEAST
AT 30 MPH.

HAIL UP TO THE SIZE OF NICKELS AND WIND GUSTS UP TO 50 MPH ARE
EXPECTED WITH THIS STORM...ALONG WITH FREQUENT DANGEROUS LIGHTNING.

LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...
  EL INDIO...
  FARIAS LAKE...

THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS... FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

LAT...LON 2822 10023 2822 10025 2827 10030 2831 10030
      2838 10036 2844 10035 2847 10038 2849 10037
      2866 10013 2820 9987 2819 10022
TIME...MOT...LOC 0009Z 233DEG 27KT 2832 10045

Special weather statement, May 9, 6:32 PM CST, 18 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
732 PM CDT THU MAY 9 2013

TXZ171-188-100145-
GILLESPIE-LLANO-
732 PM CDT THU MAY 9 2013

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN LLANO AND
NORTHWESTERN GILLESPIE COUNTIES UNTIL 845 PM CDT...

AT 727 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 11 MILES WEST OF MASON...MOVING SOUTHEAST AT
30 MPH.

THIS STORM HAS A HISTORY OF PRODUCING A WALL CLOUDY AND HAIL UP TO
THE SIZE OF BASEBALLS. ASSUMING THE STORM MAINTAINS INTENSITY...
SEVERE WEATHER WILL BE POSSIBLE OVER NORTHWEST GILLESPIE COUNTY AND
SOUTHWEST LLANO COUNTY BY AS EARLY AS 815 PM.

LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...
  CASTELL...
  DOSS...
  CHERRY SPRING...
  PRAIRIE MOUNTAIN...
  ENCHANTED ROCK STATION...
  CRABAPPLE...

IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A
STURDY BUILDING.

LAT...LON 3070 9882 3043 9884 3038 9922 3048 9932
      3051 9930 3050 9898 3073 9897
TIME...MOT...LOC 0029Z 307DEG 26KT 3073 9939

The radar

The Laughlin AFB radar (KDFX), 84 km away, was scanning. The volume nearest the first event began at 00:50 UTC.

Open the radar archive at this moment

Event by event

61 hail, 17 thunderstorm wind, 6 flash flood. Local standard time, as filed.

Hail, Maverick

When: May 9, 6:50 PM CST
Where: Maverick County, El Indio
Measured: 1.75 in hail
Reported by: Public
Coordinates: 28.520, -100.320

Hail, Gillespie

When: May 9, 7:25 PM CST
Where: Gillespie County, 6.31 mi WNW of Doss
Measured: 1.25 in hail
Reported by: Public
Coordinates: 30.480, -99.230

Hail, Gillespie

When: May 9, 7:39 PM CST
Where: Gillespie County, 3.64 mi E of Doss
Measured: 2.75 in hail
Reported by: Law Enforcement
Coordinates: 30.440, -99.070

A thunderstorm produced baseball size hail in Cherry Spring.

Thunderstorm Wind, Edwards

When: May 9, 7:50 PM CST
Where: Edwards County, 27.47 mi ENE of Rocks Spgs Arpt
Measured: 50 kt (58 mph) estimated gust
Reported by: Public
Coordinates: 30.160, -99.780

A thunderstorm produced wind gusts estimated at 58 mph that downed several trees and damaged a carport.

Hail, Gillespie

When: May 9, 8:00 PM CST
Where: Gillespie County, 6.28 mi SSE of Cherry Spg
Measured: 1.75 in hail
Reported by: Public
Coordinates: 30.400, -98.970

Hail, Gillespie

When: May 9, 8:06 PM CST
Where: Gillespie County, 7.14 mi SSE of Cherry Spg
Measured: 1.75 in hail
Reported by: Public
Coordinates: 30.380, -98.990

Thunderstorm Wind, Gillespie

When: May 9, 8:06 PM CST
Where: Gillespie County, 6.66 mi NNW of Fredericksburg Arpt
Measured: 70 kt (81 mph) estimated gust
Reported by: Broadcast Media
Coordinates: 30.340, -98.960

A thunderstorm produced wind gusts estimated at 81 mph that downed tree branches.

Hail, Gillespie

When: May 9, 8:23 PM CST
Where: Gillespie County, 0.69 mi S of Fredericksburg
Measured: 1 in hail
Reported by: Public
Coordinates: 30.270, -98.870

Hail, Gillespie

When: May 9, 8:25 PM CST
Where: Gillespie County, 4.17 mi W of Cave Creek
Measured: 1.75 in hail
Reported by: Public
Coordinates: 30.320, -98.790

Hail, Gillespie

When: May 9, 8:29 PM CST
Where: Gillespie County, 0.6 mi W of Fredericksburg
Measured: 3 in hail
Reported by: Public
Coordinates: 30.280, -98.880

Hail, Gillespie

When: May 9, 8:30 PM CST
Where: Gillespie County, Fredericksburg
Measured: 1.75 in hail
Reported by: Trained Spotter
Coordinates: 30.280, -98.870

A thunderstorm produced hail that covered the ground with drifts up to eight inches deep. The largest hail was golf ball size.

Hail, Gillespie

When: May 9, 8:31 PM CST
Where: Gillespie County, 0.69 mi S of Fredericksburg
Measured: 2 in hail
Reported by: Trained Spotter
Coordinates: 30.270, -98.870

Hail, Gillespie

When: May 9, 8:39 PM CST
Where: Gillespie County, 1.83 mi SW of Stonewall
Measured: 1.75 in hail
Property damage: $2,000
Reported by: Broadcast Media
Coordinates: 30.230, -98.690

A thunderstorm produced golf ball size hail that broke windshields.

Hail, Gillespie

When: May 9, 8:40 PM CST
Where: Gillespie County, 0.69 mi S of Fredericksburg
Measured: 1 in hail
Reported by: Trained Spotter
Coordinates: 30.270, -98.870

Hail, Kerr

When: May 9, 8:58 PM CST
Where: Kerr County, 3.89 mi SSW of Hunt
Measured: 1.25 in hail
Reported by: CoCoRaHS
Coordinates: 30.020, -99.360

Hail, Gillespie

When: May 9, 8:59 PM CST
Where: Gillespie County, 2.83 mi NNW of Albert
Measured: 1 in hail
Reported by: Trained Spotter
Coordinates: 30.240, -98.610

Hail, Blanco

When: May 9, 9:03 PM CST
Where: Blanco County, 6.91 mi S of Hye
Measured: 1.75 in hail
Reported by: Trained Spotter
Coordinates: 30.150, -98.570

Hail, Blanco

When: May 9, 9:11 PM CST
Where: Blanco County, 6.58 mi WNW of Blanco
Measured: 1.75 in hail
Reported by: Trained Spotter
Coordinates: 30.140, -98.520

Hail, Blanco

When: May 9, 9:20 PM CST
Where: Blanco County, Blanco
Measured: 0.75 in hail
Reported by: Trained Spotter
Coordinates: 30.100, -98.420

Hail, Kerr

When: May 9, 9:35 PM CST
Where: Kerr County, 7.78 mi WSW of Legion
Measured: 1 in hail
Reported by: Amateur Radio
Coordinates: 29.960, -99.230

Hail, Kerr

When: May 9, 9:40 PM CST
Where: Kerr County, 10.79 mi SSE of Hunt
Measured: 0.75 in hail
Reported by: Broadcast Media
Coordinates: 29.920, -99.280

A thunderstorm produced hail that covered Hwy 16 12 miles southwest of Kerrville. The largest hail was penny size.

Hail, Hays

When: May 9, 9:52 PM CST
Where: Hays County, 10.77 mi W of Wimberley
Measured: 1 in hail
Reported by: Storm Chaser
Coordinates: 30.000, -98.230

Hail, Comal

When: May 9, 10:00 PM CST
Where: Comal County, 0.69 mi N of Gruene
Measured: 0.75 in hail
Property damage: $2,000
Reported by: CoCoRaHS
Coordinates: 29.740, -98.100

A thunderstorm produced hail one half to three quarters of an inch in diameter that dented a car.

Hail, Comal

When: May 9, 10:09 PM CST
Where: Comal County, 2.27 mi NW of New Braunfels
Measured: 1 in hail
Reported by: NWS Employee
Coordinates: 29.720, -98.160

Hail, Comal

When: May 9, 10:13 PM CST
Where: Comal County, 0.6 mi E of New Braunfels
Measured: 1 in hail
Reported by: Public
Coordinates: 29.700, -98.120

Hail, Comal

When: May 9, 10:15 PM CST
Where: Comal County, 2.27 mi NW of New Braunfels
Measured: 1 in hail
Reported by: NWS Employee
Coordinates: 29.720, -98.160

Hail, Comal

When: May 9, 10:15 PM CST
Where: Comal County, 1.51 mi NNW of New Braunfels
Measured: 1 in hail
Reported by: NWS Employee
Coordinates: 29.720, -98.140

Hail, Comal

When: May 9, 10:15 PM CST
Where: Comal County, 1.51 mi SSE of New Braunfels
Measured: 1 in hail
Reported by: NWS Employee
Coordinates: 29.680, -98.120

Thunderstorm Wind, Hays

When: May 9, 10:15 PM CST
Where: Hays County, 2.77 mi WSW of San Marcos Lowman Ar
Measured: 50 kt (58 mph) estimated gust
Reported by: Law Enforcement
Coordinates: 29.830, -97.990

A thunderstorm produced wind gusts estimated at 58 mph that blew down power lines.

Hail, Comal

When: May 9, 10:23 PM CST
Where: Comal County, 0.6 mi E of New Braunfels
Measured: 1 in hail
Reported by: Public
Coordinates: 29.700, -98.120

Hail, Guadalupe

When: May 9, 10:24 PM CST
Where: Guadalupe County, 3.17 mi NE of Clear Spg
Measured: 0.88 in hail
Reported by: NWS Employee
Coordinates: 29.700, -98.030

Hail, Hays

When: May 9, 10:27 PM CST
Where: Hays County, 2.27 mi SW of San Marcos
Measured: 0.88 in hail
Reported by: Public
Coordinates: 29.880, -97.930

Thunderstorm Wind, Caldwell

When: May 9, 10:42 PM CST
Where: Caldwell County, 0.91 mi SW of Lockhart Muni Arpt
Measured: 52 kt (60 mph) estimated gust
Reported by: Amateur Radio
Coordinates: 29.840, -97.680

A thunderstorm produced wind gusts estimated at 60 mph.

Thunderstorm Wind, Caldwell

When: May 9, 11:02 PM CST
Where: Caldwell County, Luling
Measured: 50 kt (58 mph) estimated gust
Reported by: Law Enforcement
Coordinates: 29.680, -97.650

A thunderstorm produced wind gusts estimated at 58 mph that blew a tree down.

Hail, Kerr

When: May 10, 2:38 AM CST
Where: Kerr County, 3.89 mi SSW of Hunt
Measured: 0.75 in hail
Reported by: CoCoRaHS
Coordinates: 30.020, -99.360

Hail, Real

When: May 10, 4:15 AM CST
Where: Real County, 13.61 mi NNE of Prade Ranch
Measured: 1.75 in hail
Reported by: Public
Coordinates: 30.070, -99.690

A thunderstorm produced golf ball size hail near Garven's Store.

Hail, Kerr

When: May 10, 4:45 AM CST
Where: Kerr County, 4.24 mi W of Hunt
Measured: 1 in hail
Reported by: CoCoRaHS
Coordinates: 30.080, -99.400

Hail, Kerr

When: May 10, 4:47 AM CST
Where: Kerr County, 1.79 mi E of Hunt
Measured: 0.75 in hail
Reported by: CoCoRaHS
Coordinates: 30.070, -99.300

Hail, Kerr

When: May 10, 4:59 AM CST
Where: Kerr County, 4.53 mi SW of (Erv)schreiner Fld K
Measured: 1 in hail
Reported by: Amateur Radio
Coordinates: 29.940, -99.140

A thunderstorm produced pea to quarter size hail.

Hail, Comal

When: May 10, 5:40 AM CST
Where: Comal County, 5.81 mi NNE of Spring Branch
Measured: 2 in hail
Reported by: CoCoRaHS
Coordinates: 29.950, -98.370

A thunderstorm produced hail the largest of which was two inches in diameter, but was mostly pea size.

Hail, Comal

When: May 10, 6:00 AM CST
Where: Comal County, 3.65 mi NW of New Braunfels
Measured: 0.88 in hail
Reported by: Public
Coordinates: 29.730, -98.180

Hail, Medina

When: May 10, 6:20 AM CST
Where: Medina County, 0.92 mi NE of Mico
Measured: 1.25 in hail
Reported by: Public
Coordinates: 29.540, -98.920

Hail, Comal

When: May 10, 6:35 AM CST
Where: Comal County, 2.27 mi NW of New Braunfels
Measured: 1 in hail
Reported by: NWS Employee
Coordinates: 29.720, -98.160

Thunderstorm Wind, Guadalupe

When: May 10, 6:45 AM CST
Where: Guadalupe County, 0.6 mi W of Geronimo
Measured: 50 kt (58 mph) estimated gust
Reported by: Public
Coordinates: 29.670, -97.980

A thunderstorm produced wind gusts estimated at 58 mph that downed numerous large tree limbs.

Hail, Guadalupe

When: May 10, 6:47 AM CST
Where: Guadalupe County, 3.43 mi NE of Clear Spg
Measured: 1 in hail
Reported by: NWS Employee
Coordinates: 29.704, -98.028

A thunderstorm produced quarter size hail at the NWS Weather Forecast Office.

Hail, Lavaca

When: May 10, 8:31 AM CST
Where: Lavaca County, 1.51 mi NNE of Halletsville
Measured: 1.5 in hail
Reported by: COOP Observer
Coordinates: 29.470, -96.940

Thunderstorm Wind, Uvalde

When: May 10, 4:00 PM CST
Where: Uvalde County, Reagan Wells
Measured: 52 kt (60 mph) estimated gust
Reported by: Trained Spotter
Coordinates: 29.550, -99.800

A thunderstorm produced wind gusts estimated at 60 mph and pea size hail.

Hail, Val Verde

When: May 10, 4:45 PM CST
Where: Val Verde County, 0.69 mi N of Del Rio
Measured: 0.75 in hail
Reported by: Trained Spotter
Coordinates: 29.380, -100.900

A thunderstorm produced one half to three quarters of an inch diameter hail at the Del Rio International Airport.

Hail, Val Verde

When: May 10, 4:45 PM CST
Where: Val Verde County, 2.83 mi NNW of (Drt)del Rio Intl Ar
Measured: 1 in hail
Reported by: Trained Spotter
Coordinates: 29.410, -100.930

Thunderstorm Wind, Medina

When: May 10, 4:50 PM CST
Where: Medina County, 6.18 mi WSW of (Hdo)hondo Muni Arpt
Measured: 52 kt (60 mph) estimated gust
Reported by: Public
Coordinates: 29.330, -99.280

A thunderstorm produced wind gusts estimated at 60 mph.

Hail, Medina

When: May 10, 4:57 PM CST
Where: Medina County, 0.92 mi NW of Hondo
Measured: 1 in hail
Reported by: Public
Coordinates: 29.360, -99.160

Hail, Burnet

When: May 10, 5:00 PM CST to 5:15 PM CST
Where: Burnet County, 0.69 mi N of Burnet Craddock Arpt
Measured: 1 in hail
Reported by: Trained Spotter
Coordinates: 30.760, -98.230

A thunderstorm produced nickel to quarter size hail for 15 minutes.

Thunderstorm Wind, Uvalde

When: May 10, 5:15 PM CST
Where: Uvalde County, 4.21 mi NE of North Uvalde
Measured: 61 kt (70 mph) estimated gust
Property damage: $10,000
Reported by: Emergency Manager
Coordinates: 29.300, -99.780

A thunderstorm produced wind gusts estimated at 70 mph that snapped six power poles and downed large trees.

Hail, Llano

When: May 10, 5:20 PM CST
Where: Llano County, 4.51 mi NE of Valley Spgs
Measured: 0.88 in hail
Reported by: Trained Spotter
Coordinates: 30.890, -98.740

Hail, Medina

When: May 10, 5:30 PM CST
Where: Medina County, 0.92 mi NW of Hondo
Measured: 1 in hail
Reported by: Broadcast Media
Coordinates: 29.360, -99.160

Hail, Medina

When: May 10, 5:30 PM CST to 5:39 PM CST
Where: Medina County, 0.92 mi SE of Castroville Muni Arp
Measured: 1 in hail
Property damage: $2,000
Reported by: Trained Spotter
Coordinates: 29.320, -98.840

A thunderstorm produced quarter size hail for nine minutes that broke windows on a house.

Hail, Llano

When: May 10, 5:35 PM CST
Where: Llano County, 1.38 mi N of Lone Grove
Measured: 1 in hail
Reported by: Trained Spotter
Coordinates: 30.820, -98.570

A thunderstorm produced quarter size hail and wind gusts that blew down several trees.

Thunderstorm Wind, Llano

When: May 10, 5:35 PM CST
Where: Llano County, 1.38 mi N of Lone Grove
Measured: 50 kt (58 mph) estimated gust
Property damage: $2,000
Reported by: Trained Spotter
Coordinates: 30.820, -98.570

A thunderstorm produced wind gusts estimated at 58 mph that blew down several trees. This storm also produced quarter size hail.

Hail, Bexar

When: May 10, 5:50 PM CST
Where: Bexar County, 3.02 mi SSW of Atascosa
Measured: 1.75 in hail
Reported by: Trained Spotter
Coordinates: 29.230, -98.750

Hail, Burnet

When: May 10, 5:55 PM CST
Where: Burnet County, 4.56 mi NW of Sudduth
Measured: 1 in hail
Reported by: Trained Spotter
Coordinates: 30.700, -98.300

A thunderstorm produced quarter size hail and wind gusts estimated at 50 mph.

Hail, Frio

When: May 10, 6:05 PM CST
Where: Frio County, 8.18 mi SSE of Frio Town
Measured: 1.75 in hail
Reported by: Broadcast Media
Coordinates: 28.910, -99.270

Hail, Frio

When: May 10, 6:05 PM CST
Where: Frio County, 3.51 mi N of Pearsall
Measured: 2.75 in hail
Reported by: Trained Spotter
Coordinates: 28.930, -99.090

Hail, Frio

When: May 10, 6:05 PM CST
Where: Frio County, 2.75 mi NW of Pearsall
Measured: 3.5 in hail
Reported by: NWS Employee
Coordinates: 28.910, -99.110

Hail, Bexar

When: May 10, 6:05 PM CST
Where: Bexar County, 2.16 mi SSE of Southton
Measured: 1.75 in hail
Reported by: Public
Coordinates: 29.250, -98.570

A thunderstorm produced golf ball size hail and wind gusts that blew down several trees near the Medina River Natural Area.

Thunderstorm Wind, Bexar

When: May 10, 6:05 PM CST
Where: Bexar County, 2.16 mi SSE of Southton
Measured: 50 kt (58 mph) estimated gust
Reported by: Public
Coordinates: 29.250, -98.570

A thunderstorm produced wind gusts estimated at 58 mph that blew down several trees near the Medina River Natural Area. This storm also produced golf ball size hail.

Hail, Frio

When: May 10, 6:10 PM CST
Where: Frio County, 0.92 mi NW of Pearsall
Measured: 2.5 in hail
Reported by: Public
Coordinates: 28.890, -99.090

Thunderstorm Wind, Medina

When: May 10, 6:10 PM CST
Where: Medina County, 0.92 mi SE of Lacoste
Measured: 52 kt (60 mph) estimated gust
Property damage: $10,000
Reported by: Emergency Manager
Coordinates: 29.310, -98.810

A thunderstorm produced wind gusts estimated at 60 mph that broke numerous windows, tore siding and roofing away, and uprooted six to eight inch trees.

Thunderstorm Wind, Frio

When: May 10, 6:10 PM CST
Where: Frio County, 2.83 mi NNW of Pearsall
Measured: 52 kt (60 mph) estimated gust
Property damage: $10,000
Reported by: Trained Spotter
Coordinates: 28.920, -99.090

A thunderstorm produced wind gusts estimated at 60 mph that broke or knocked out numerous west facing windows on houses, RVs, and other vehicles.

Hail, Frio

When: May 10, 6:20 PM CST
Where: Frio County, 1.51 mi NNW of Pearsall
Measured: 2.5 in hail
Reported by: Trained Spotter
Coordinates: 28.900, -99.090

Thunderstorm Wind, Bexar

When: May 10, 6:20 PM CST
Where: Bexar County, 3.68 mi W of Macdona
Measured: 50 kt (58 mph) estimated gust
Property damage: $1,000
Reported by: Law Enforcement
Coordinates: 29.320, -98.760

A thunderstorm produced wind gusts estimated at 58 mph that uprooted some large trees.

Hail, Bastrop

When: May 10, 6:30 PM CST
Where: Bastrop County, Elgin
Measured: 1 in hail
Reported by: Trained Spotter
Coordinates: 30.350, -97.370

Hail, Travis

When: May 10, 6:35 PM CST
Where: Travis County, 1.92 mi WSW of Vinson
Measured: 1 in hail
Reported by: CoCoRaHS
Coordinates: 30.210, -97.810

Hail, Wilson

When: May 10, 6:38 PM CST
Where: Wilson County, 0.92 mi NE of Floresville
Measured: 0.88 in hail
Reported by: Trained Spotter
Coordinates: 29.140, -98.160

Hail, Travis

When: May 10, 6:40 PM CST
Where: Travis County, 1.79 mi E of Oak Hill
Measured: 1 in hail
Reported by: Public
Coordinates: 30.230, -97.820

Thunderstorm Wind, Bexar

When: May 10, 6:45 PM CST
Where: Bexar County, 2.75 mi SE of Von Ormy
Measured: 61 kt (70 mph) estimated gust
Property damage: $10,000
Reported by: Law Enforcement
Coordinates: 29.290, -98.640

A thunderstorm produced wind gusts estimated at 70 mph that damaged several houses, a silo, and overturned an 18 wheeler truck.

Flash Flood, Travis

When: May 10, 6:55 PM CST
Where: Travis County, 0.63 mi NNE of Vinson to 0.36 mi NNW of Vinson
Cause: Heavy Rain
Reported by: Broadcast Media
Coordinates: 30.229, -97.777

Thunderstorms produced heavy rain that caused flash flooding stopping travel along W. Ben White Blvd. in Austin.

Thunderstorm Wind, Atascosa

When: May 10, 7:06 PM CST
Where: Atascosa County, 8.64 mi SSW of Christine
Measured: 61 kt (70 mph) estimated gust
Reported by: Trained Spotter
Coordinates: 28.660, -98.540

A thunderstorm produced wind gusts estimated at 70 mph five miles north of Cross.

Thunderstorm Wind, Bastrop

When: May 10, 7:14 PM CST
Where: Bastrop County, 0.75 mi NNE of Elgin
Measured: 50 kt (58 mph) estimated gust
Reported by: Emergency Manager
Coordinates: 30.360, -97.365

A thunderstorm produced wind gusts estimated at 58 mph that downed trees on Red Town Rd. in Elgin.

Flash Flood, Travis

When: May 10, 7:20 PM CST
Where: Travis County, 1.38 mi WSW of North Oaks to 0.88 mi SW of North Oaks
Cause: Heavy Rain
Reported by: Broadcast Media
Coordinates: 30.370, -97.700

Thunderstorms produced heavy rain that caused flash flooding requiring a vehicle water rescue.

Flash Flood, Bastrop

When: May 10, 7:48 PM CST
Where: Bastrop County, 0.74 mi SW of Elgin to 0.44 mi W of Elgin
Cause: Heavy Rain
Reported by: Emergency Manager
Coordinates: 30.341, -97.377

Thunderstorms produced heavy rain that caused flash flooding on N. Avenue B, N. Avenue C, W. 3rd St., and Brenham St. in Elgin.

Flash Flood, Travis

When: May 10, 7:48 PM CST
Where: Travis County, 1.19 mi W of Oak Hill to 1.81 mi WNW of Oak Hill
Cause: Heavy Rain
Reported by: Broadcast Media
Coordinates: 30.230, -97.870

Thunderstorms produced heavy rain that caused flash flooding closing a low water crossing near the Y in Oak Hill.

Flash Flood, Bastrop

When: May 10, 7:50 PM CST
Where: Bastrop County, 1.49 mi E of Bastrop to 2.23 mi WNW of Bastrop
Cause: Heavy Rain
Reported by: Emergency Manager
Coordinates: 30.117, -97.295

Thunderstorms produced heavy rain that caused flash flooding closing several roads in Bastrop.

Flash Flood, Bastrop

When: May 10, 8:11 PM CST
Where: Bastrop County, 2.11 mi WNW of Elgin to 2.69 mi W of Elgin
Cause: Heavy Rain
Reported by: Law Enforcement
Coordinates: 30.356, -97.405

Thunderstorms produced heavy rain that caused flash flooding closing Hwy 290 at County Line Rd. outside of Elgin.

Hail, Hays

When: May 10, 9:45 PM CST
Where: Hays County, 7.81 mi W of Wimberley
Measured: 0.88 in hail
Reported by: CoCoRaHS
Coordinates: 30.010, -98.180

What these are

Hail: Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
Thunderstorm Wind: Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.
Flash Flood: Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

Every storm in Texas in 2013 Every state in 2013 This day in weather history Warnings in Texas, May 2013

Sources

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: 444567, 444569, 444570, 444571, 444572, 444573, 444575, 444576, 444577, 444578, 444588, 444579, 444580, 444581, 444582, 444583, 444585, 444586, 444587, 444589, 444592, 444593, 444596, 444600, 444601, 444602, 444604, 444605, 444606, 444607, 444608, 444609, 444610, 444611, 444616, 444617, 444618, 444619, 444620, 444621, and more.