An upper level short wave trough moved through the long wave trough over the southwestern states and interacted with a dryline to produce widespread thunderstorms. Some of these storms produced large hail, damaging wind gusts, and heavy rain that led to flash flooding.
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.
An upper level short wave trough moved through the long wave trough over the southwestern states and interacted with a dryline to produce widespread thunderstorms. Some of these storms produced large hail, damaging wind gusts, and heavy rain that led to flash flooding.
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 Apr 24, 5:56 AM CST, 19 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 656 AM CDT FRI APR 24 2015 .UPDATE... HEAVY RAIN WILL CONTINUE ACROSS THE NORTHEAST THIS MORNING. UPDATED TO INCLUDE HEAVY RAIN FOR THIS REGION. && .PREV DISCUSSION... /ISSUED 633 AM CDT FRI APR 24 2015/ AVIATION... CLUSTER OF SHRA/TSRA N OF KECU TO KPEZ TO KT20 TO K3T5 LINE WILL CONTINUE TO SLOWLY MOVE TO THE NE AND OUT OF SOUTH CENTRAL TEXAS BY MIDDAY. WILL CONTINUE TSRA PREVAILING NEXT 1 TO 3 HOURS AT KAUS/KSAT/KSSF. NO MENTION AT KDRT...ALTHOUGH ISOLD SHRA/TSRA WILL PASS JUST EAST OF THE SITE. CHANCES REMAIN FOR SHRA/TSRA TO REDEVELOP THIS AFTERNOON INTO EVENING AND THEN LINGER ACROSS SOUTHEASTERN AREAS ON SATURDAY. HAVE PROB30S FOR KAUS/KSAT/KSSF FOR 24/22Z-25/02Z. AREAS OF IFR/MVFR CIGS/VSBYS WILL GIVE WAY TO VFR SKIES MIDDAY TO AFTERNOON. IFR/MVFR CIGS REDEVELOP TONIGHT AND THEN BECOME VFR SATURDAY MORNING. EXCEPT...REMAIN VFR AT KDRT. S TO SE WINDS 5 TO 15 KTS TODAY INTO TONIGHT...BECOME W TO NW TONIGHT OUT WEST SPREADING TO EASTERN AREAS ON SATURDAY AS A DRYLINE MOVES ACROSS OUR AREA. PREV DISCUSSION... /ISSUED 323 AM CDT FRI APR 24 2015/ SHORT TERM (TODAY THROUGH SATURDAY)... UPPER AIR ANALYSIS LAST EVENING SHOWED A RIDGE OVER THE MIDDLE OF THE COUNTRY AND A TROUGH EXTENDING FROM UTAH TO THE PACIFIC COAST OF BAJA CALIFORNIA. THE SOUTHWESTERLY FLOW ACROSS MEXICO IS BRINGING MID-LEVEL MOISTURE FROM THE PACIFIC. AT THE SURFACE...THE DRYLINE WAS LYING ACROSS EDWARDS AND VAL VERDE COUNTIES AND A COLD FRONT STRETCHED FROM NEAR BEAUMONT TO STEPHENVILLE. MOST OF OUR CWA REMAINS WARM AND MOIST WITH DEW POINT TEMPERATURES IN THE LOWER TO MIDDLE 70S. THERE IS A SEVERE THUNDERSTORM WATCH IN EFFECT FOR THE SOUTHWESTERN COUNTIES WHICH WILL CONTINUE INTO THE FIRST PERIOD OF THIS FORECAST. THE UPPER LEVEL TROUGH OVER THE SOUTHWEST WILL PROGRESS TO THE NORTHEAST DURING THIS PERIOD CAUSING SOME MINOR HEIGHT FALLS OVER TEXAS. THE FLOW WILL REMAIN FROM THE SOUTHWEST. A COLD FRONT WILL DEVELOP TONIGHT AND MOVE THROUGH OUR CWA. THIS WILL TURN THE SURFACE WINDS AROUND TO THE WEST AND BRING IN DRIER AIR. WE WILL SEE CONTINUING CHANCES FOR THUNDERSTORMS TODAY AND TONIGHT. MODEL SOUNDINGS SHOWING CAPE AROUND 2000 J/KG AND VERTICAL WIND SHEAR AROUND 50 KTS. THIS SUGGESTS THE POSSIBILITY OF STRONG TO SEVERE STORMS THIS AFTERNOON AND EVENING. WE ARE AGAIN IN THE SPC SLIGHT RISK WITH A SLIVER OF BURNET AND WILLIAMSON COUNTIES IN THE ENHANCED RISK. THE MAIN THREAT WILL BE FOR LARGE HAIL AND DAMAGING WINDS. ONCE THE FRONT MOVES THROUGH THE CHANCE FOR SEVERE STORMS WILL COME TO AN END. THERE WILL BE LINGERING POPS ACROSS THE SOUTHEAST ON SATURDAY. LONG TERM (SATURDAY NIGHT THROUGH THURSDAY)... A STATIONARY FRONT WILL LIE ACROSS OUR SOUTHERN BORDER SATURDAY NIGHT AND SUNDAY. SOUTHERLY WINDS SOUTH OF THIS BOUNDARY WILL BRING MOIST AIR UP OVER THE FRONT AND CHANCES FOR THUNDERSTORMS SUNDAY. ANOTHER UPPER LEVEL TROUGH WILL DROP THROUGH THE WEST AND IN RESPONSE A RIDGE WILL BUILD OVER EAST TEXAS SUNDAY. THIS WILL PUSH A COLD FRONT THROUGH OUR AREA SUNDAY NIGHT INTO MONDAY WITH ANOTHER CHANCE FOR THUNDERSTORMS. BEHIND THE FRONT DRIER AIR WILL MOVE IN AND THE WINDS WILL TURN TO THE WEST AND THEN NORTH. AN UPPER LOW WILL FORM OVER THE SOUTHERN ROCKIES AND MOVE INTO WEST TEXAS BY MONDAY NIGHT. MODELS ARE IN BETTER AGREEMENT ON THE PROGRESSION OF THIS FEATURE ACROSS NORTH TEXAS ALONG THE RED RIVER REACHING ARKANSAS BY TUESDAY EVENING. MODELS DIVERGE BEYOND THIS POINT. WITH THE DRY AIR IN THE LOW LEVELS OUR FORECAST IS DRY THROUGH THE END OF THE PERIOD. && .PRELIMINARY POINT TEMPS/POPS... AUSTIN CAMP MABRY 85 67 89 66 87 / 50 40 10 - 30 AUSTIN BERGSTROM INTL AIRPORT 84 67 88 64 86 / 50 50 20 - 30 NEW BRAUNFELS MUNI AIRPORT 85 67 89 65 87 / 50 50 20 10 30 BURNET MUNI AIRPORT 82 64 87 62 86 / 60 30 - 0 30 DEL RIO INTL AIRPORT 86 63 89 65 90 / 40 20 10 - - GEORGETOWN MUNI AIRPORT 84 65 88 63 86 / 50 30 10 0 30 HONDO MUNI AIRPORT 84 66 88 64 88 / 50 60 20 - 20 SAN MARCOS MUNI AIRPORT 84 67 87 65 86 / 50 50 20 10 30 LA GRANGE - FAYETTE REGIONAL 84 70 86 67 85 / 50 50 20 10 20 SAN ANTONIO INTL AIRPORT 85 68 89 67 87 / 50 60 20 - 30 STINSON MUNI AIRPORT 84 69 88 67 88 / 50 60 20 10 30 && .EWX WATCHES/WARNINGS/ADVISORIES... NONE. && MESOSCALE/AVIATION...04 SYNOPTIC/GRIDS...05 PUBLIC SERVICE/DATA COLLECTION...12
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 509 AM CDT FRI APR 24 2015 TXZ171>173-183>194-202>209-217>225-228-251100- 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- 509 AM CDT FRI APR 24 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL TEXAS. .DAY ONE...TODAY AND TONIGHT. THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS ALL OF SOUTH CENTRAL TEXAS. THE PRIMARY THREATS ARE LARGE HAIL AND DAMAGING WIND GUSTS...BUT ISOLATED HEAVY DOWNPOURS OF 2 TO 4 INCHES AND BRIEF TORNADOES ARE ALSO POSSIBLE. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY. THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS LATE SUNDAY INTO MONDAY. THE MAIN THREATS WILL BE LARGE HAIL AND DAMAGING WIND GUSTS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED TODAY.
The Austin/San Antonio radar (KEWX), 85 km away, was scanning. The volume nearest the first event began at 12:16 UTC.
14 hail, 10 thunderstorm wind, 8 flash flood, 1 tornado, 1 flood. Local standard time, as filed.
Thunderstorms produced heavy rain that led to flash flooding closing many roads in Bastrop County. ATXFloods reported FM535 at AJ Rod Rd between Smithville and Rosanky was closed due to flooding.
Thunderstorms produced heavy rain that led to flash flooding. The Lytle Volunteer Fire Department reported several areas of high water including I-35 at FM3175.
Thunderstorms produced heavy rain that led to flash flooding. A low water crossing at S. Callaghan Rd. and Hwy 90 in San Antonio was closed due to water over the roadway.
Thunderstorms produced heavy rain that led to flash flooding closing Hwy20 at Callihan Rd. A National Weather Employee in the area reported 4.08 inches of rain in two hours.
Thunderstorms produced heavy rain that led to flash flooding closing CR143 near Loebau.
A thunderstorm produced a tornado that moved through an open area near the Dimmit/Zavala County line. An irrigation pivot was overturned on a ranch along with some minor outbuilding damage. No other damage was found. The path and time were determined from radar. Max winds are estimated to be 80 mph.
A thunderstorm produced two inch hail and wind gusts that knocked down tree limbs greater than two inches in diameter.
A thunderstorm produced wind gusts estimated at 60 mph that snapped off numerous healthy four to eight inch diameter tree limbs.
A thunderstorm produced wind gusts estimated at 70 mph that snapped a healthy three foot diameter Mesquite tree three feet above the ground.
A thunderstorm produced wind gusts estimated at 75 mph flipped over four to five trailers at Hwy 90 and Hwy 173, blew the doors out at a car dealership, and knocked down several trees all in Hondo.
A thunderstorm produced one inch hail near I-410 and Bandera Rd. in San Antonio.
A thunderstorm produced one inch hail near I-10 and Fredericksburg Rd. in San Antonio.
A thunderstorm produced wind gusts estimated at 70 mph that knocked some eight to nine inch diameter tree limbs onto a house.
A thunderstorm produced wind gusts estimated at 75 mph that knocked down several trees.
A thunderstorm produced wind gusts estimated at 75 mph that knocked a 2.5 foot diameter Oak tree onto a house.
San Antonio Office of Emergency Management reported numerous trees damaged in the Trophy Ridge subdivision. Some minor roof damage also reported. USAA insurance company reported 1000 property and 1000 auto claims in Bexar County during this night due. Damage brought on by strong winds and hail. Monetary damage amounts are an estimate.
Thunderstorms produced heavy rain that led to flash flooding southeast of Geronimo closing Laubach Rd. and FM20 one mile north of Tschoepe Rd.
A thunderstorm produced wind gusts estimated at 60 mph that blew down a barn door.
A thunderstorm produced wind gusts estimated at 70 mph that blew down a cluster of large trees and damaged a sturdy pipe fence.
Thunderstorms produced heavy rain that led to flash flooding. There were high water rescues in San Antonio at the following locations:|12000 block of Old O'Connor Rd.|Intersection of Mockingbird Ln. and N. Songbird Ln.|I-10W ramp at N. Brazos St.|Hwy281S at E Basse Rd.|Intersection of Stahl Rd. and Bell Dr.
A thunderstorm produced wind gusts estimated at 70 mph knocked down trees and powerlines.
Thunderstorms produced heavy rain that led to flash flooding closing numerous low water crossings including FM1103 at Town Creek Way where there was two feet of water over the road.
An elderly man was working on a fence and may have hit his head and fell into a creek and drown. The creek had flowing water from recent rains.
As the offices recorded each death: direct deaths were caused by the weather itself, indirect ones by something it set in motion.
| Event | Date | Age | Sex | Where | Kind |
|---|---|---|---|---|---|
| Flood, Fayette | 2015-04-25 | 77 | Male | In Water | Indirect |
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2015Every state in 2015This day in weather historyThe tornado archive for Texas, 2015Warnings in Texas, April 2015
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: 571394, 571395, 571396, 571397, 571398, 571399, 573681, 571400, 571403, 571405, 571406, 571407, 571415, 571416, 571417, 571418, 571420, 571421, 571423, 571424, 571425, 571427, 571428, 574293, 571429, 571430, 571431, 571432, 571433, 571434, 571436, 571437, 571438, 574301.