A cold front moved through South Central Texas on the evening of February 10 and produced a line of severe thunderstorms in the eastern half of the area along with very strong, gusty winds in its wake in the west.
Every event with a place to put it; 6 filed by county or forecast zone are drawn at its center, in a lighter ring. 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.
A cold front moved through South Central Texas on the evening of February 10 and produced a line of severe thunderstorms in the eastern half of the area along with very strong, gusty winds in its wake in the west.
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 Feb 10, 5:33 PM CST, 57 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 533 PM CST TUE FEB 10 2009 .AVIATION... COMPLEX WEATHER PATTERN OVER THE NEXT 24 HOURS AS A STRONG WINTER STORM SYSTEM BARRELS EAST THROUGH NORTH TEXAS. BLUSTERY WEST WINDS OF 35 TO 45 MPH WILL REACH KDRT SHORTLY, AND KAUS-KSSF BY 03Z. AHEAD OF THE FRONT ISOLATED SHOWER AND THUNDERSTORMS COULD DEVELOP MAINLY KAUS AREA WITH THE POSSIBILITY OF HAIL BETWEEN 01Z AND 03Z. THE BLUSTERY WINDS WILL BRING MVFR-IFR CONDITIONS IN BLOWING DUST. BY 11Z THE STORM SYSTEM WILL HAVE LIFTED NORTHEAST OUT OF TEXAS AND NORTHWEST WINDS WILL HAVE SUBSIDED TO 15 TO 25 KTS. && .PREV DISCUSSION... /ISSUED 401 PM CST TUE FEB 10 2009/ DISCUSSION... A STRONG UPPER LEVEL STORM SYSTEM IS OVER NEW MEXICO TO WEST OF THE BIG BEND. THIS IS A VERY DYNAMIC SYSTEM. DIFFLUENCE IS INCREASING WITH AN UPPER JET OVER 100 KTS. LIFT IS RAPIDLY INCREASING. A DRYLINE AND PACIFIC COLD FRONT ARE MOVING EAST ACROSS WESTERN TEXAS. THESE FEATURES WILL MOVE ACROSS THE HILL COUNTRY AND SOUTH CENTRAL TEXAS DURING THE EVENING INTO THE EARLY OVERNIGHT HOURS. STRONG MOISTURE CONVERGENCE WILL DEVELOP A SQUALL LINE OVER THE NORTHEASTERN HILL COUNTRY LATE THIS AFTERNOON THAT WILL BUILD SOUTHWEST WHILE CROSSING THE I-35 CORRIDOR THIS EVENING, AND THEN TOWARD THE COASTAL PLAINS AROUND MIDNIGHT. NAM FORECAST SOUNDINGS SHOW CAPES OF UP TO 2000 J/KG AND HELICITIES OF 300 TO 450 M2/S2 ACROSS THE NORTHEASTERN PARTS OF SOUTH CENTRAL TEXAS, INCLUDING THE AUSTIN METRO AREA FOR THIS EVENING. WILL KEEP THE POSSIBILITY OF SEVERE STORMS IN THE FORECAST FOR THOSE AREAS. THE MAIN THREAT REMAINS DAMAGING WINDS, ALTHOUGH A BRIEF TORNADO CAN NOT BE RULED OUT. A TIGHT PRESSURE GRADIENT AND SUBSIDENCE BEHIND THE FRONT WILL CREATE WIND ADVISORY CONDITIONS MAINLY THIS EVENING, ESPECIALLY RIO GRANDE PLAINS AND EDWARDS PLATEAU. THE GRADIENT WILL SLACKEN RAPIDLY WEDNESDAY AS THE SURFACE HIGH SETTLES INTO THE AREA AND WINDS WILL DECREASE IN THE AFTERNOON. HOWEVER, IT IS POSSIBLE THAT THE WIND ADVISORY MAY HAVE TO BE EXTENDED OVERNIGHT INTO WEDNESDAY. SURFACE HIGH MOVES OFF EAST ON THURSDAY, ALTHOUGH MOISTURE WILL BE SLOW TO RECOVER IN SPITE OF SOUTHERLY WINDS. ANOTHER UPPER LEVEL TROUGH AND COLD FRONT WILL MOVE ACROSS THE PLAINS ON FRIDAY, HOWEVER DYNAMICS WILL PASS FAR NORTH OF THE AREA WITH ONLY A FEW SHOWERS ACROSS FAR EASTERN AREAS. THE WEEKEND INTO EARLY NEXT MODELS SHOW DISAGREEMENTS AND INCONSISTENCIES. WESTERLY TO SOUTHWESTERLY FLOW ALOFT MAY BRING SOME UPPER TROUGHS AND POSSIBLE SOME WEAK OVERRUNNING, HOWEVER OTHER MODELS SHOW A STRONGER SOUTHERLY FLOW. THE MEX MOS/GFS MODEL SEEMS TOO BULLISH AND WILL ONLY GO WITH 10 OR 20 POPS FOR SUNDAY THROUGH TUESDAY. HAVE GENERALLY GONE WITH MEX TEMPERATURES, EXPECT WENT WARMER HIGHS FRIDAY DUE DOWNSLOPE/SUBSIDENCE AND MONDAY DUE LESS SKY COVER THAN MODEL, AND COOLER LOWS WEDNESDAY NIGHT AND THURSDAY NIGHT DUE LIGHTER WINDS AND LOWER DEWPOINTS. HAVE GONE NEAR BETTER NAM DEWPOINTS FOR TONIGHT THROUGH THURSDAY. FIRE WEATHER... RED FLAG CONDITIONS CURRENTLY ACROSS THE LOWER PECOS VALLEY WILL SPREAD ACROSS THE REMAINDER OF SOUTH CENTRAL TEXAS AND THE HILL COUNTRY THIS EVENING AND THE OVERNIGHT HOURS. RELATIVE HUMIDITIES IN THE TEENS AND SINGLE DIGITS WITH 20 FOOT WINDS OF 15 TO 25 MPH AND GUSTY CAN BE EXPECTED. THERE MAY BE A SLIGHT RECOVERY DURING THE OVERNIGHT, BEFORE RELATIVE HUMIDITIES FALL ON WEDNESDAY. ELEVATED FIRE WEATHER CONDITIONS ARE POSSIBLE AGAIN ON FRIDAY AS ANOTHER PERIOD OF DRY AND WINDY CONDITIONS CAN BE EXPECTED. && .PRELIMINARY POINT TEMPS/POPS... AUSTIN CAMP MABRY 50 75 43 73 56 / 40 0 0 - 10 AUSTIN BERGSTROM INTL AIRPORT 50 77 38 75 53 / 40 0 0 - 10 NEW BRAUNFELS MUNI AIRPORT 47 77 42 73 54 / 30 0 0 - 10 BURNET MUNI AIRPORT 49 74 42 72 52 / 40 0 0 - - DEL RIO INTL AIRPORT 46 75 43 75 50 / - 0 0 0 - GEORGETOWN MUNI AIRPORT 49 76 42 72 52 / 50 0 0 - - HONDO MUNI AIRPORT 47 76 39 74 52 / 10 0 0 0 - SAN MARCOS MUNI AIRPORT 47 77 42 74 54 / 30 0 0 - 10 LA GRANGE - FAYETTE REGIONAL 51 76 42 73 54 / 60 0 0 - 10 SAN ANTONIO INTL AIRPORT 49 77 45 74 56 / 20 0 0 0 10 STINSON MUNI AIRPORT 49 79 43 77 54 / 20 0 0 0 10 && .EWX WATCHES/WARNINGS/ADVISORIES... RED FLAG WARNING UNTIL 5 PM CST WEDNESDAY FOR THE FOLLOWING COUNTIES: ATASCOSA...BANDERA...BASTROP...BEXAR...BLANCO...BURNET... CALDWELL...COMAL...DE WITT...FAYETTE...FRIO...GILLESPIE... GONZALES...GUADALUPE...HAYS...KARNES...KENDALL...KERR...LAVACA... LEE...LLANO...MEDINA...TRAVIS...WILLIAMSON...WILSON. RED FLAG WARNING UNTIL 5 PM CST WEDNESDAY FOR THE FOLLOWING COUNTIES: DIMMIT...EDWARDS...KINNEY...MAVERICK...REAL...UVALDE... VAL VERDE...ZAVALA. WIND ADVISORY UNTIL MIDNIGHT CST TONIGHT FOR THE FOLLOWING COUNTIES: ATASCOSA...BANDERA...BEXAR...BLANCO...BURNET...COMAL... DIMMIT...FRIO...GILLESPIE...HAYS...KENDALL...KERR...LLANO... MAVERICK...MEDINA...REAL...TRAVIS...UVALDE...WILLIAMSON...ZAVALA. HIGH WIND WARNING UNTIL 8 PM CST THIS EVENING FOR THE FOLLOWING COUNTIES: EDWARDS...KINNEY...VAL VERDE. WIND ADVISORY UNTIL MIDNIGHT CST TONIGHT FOR THE FOLLOWING COUNTIES: EDWARDS...KINNEY...VAL VERDE. && 01/06
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 547 PM CST TUE FEB 10 2009 TXZ171>173-185>194-203>209-217>225-228-110600- LLANO-BURNET-WILLIAMSON-REAL-KERR-BANDERA-GILLESPIE-KENDALL- BLANCO-HAYS-TRAVIS-BASTROP-LEE-UVALDE-MEDINA-BEXAR-COMAL- GUADALUPE-CALDWELL-FAYETTE-MAVERICK-ZAVALA-FRIO-ATASCOSA-WILSON- KARNES-GONZALES-DE WITT-LAVACA-DIMMIT- 547 PM CST TUE FEB 10 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL TEXAS. .DAY ONE...TONIGHT... THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER THE EASTERN HILL COUNTRY AND MUCH OF SOUTH CENTRAL TEXAS THIS EVENING. THE MAIN THREAT FROM THE THUNDERSTORMS WILL BE DAMAGING WINDS. A WIND ADVISORY IS IN EFFECT FOR MUCH OF THE HILL COUNTRY AND SOUTH CENTRAL TEXAS UNTIL MIDNIGHT. A RED FLAG WARNING IS EFFECT ALL AREAS TONIGHT. A STRONG COLD FRONT MOVING RAPIDLY EASTWARD ACROSS WEST TEXAS TOWARD SOUTH CENTRAL TEXAS HAS RESULTED IN A VERY TIGHT PRESSURE GRADIENT ACROSS THE AREA THIS EVENING. GUSTY SOUTHERLY WINDS OF 20 TO 30 MPH WILL BLOW AHEAD OF THE COLD FRONT WITH WINDS SHIFTING TO NORTHWEST AND WEST AT 20 TO 30 MPH BEHIND THE COLD FRONT. WINDS WILL GRADUALLY SUBSIDE TO 15 TO 25 MPH AFTER MIDNIGHT. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY... A RED FLAG WARNING WILL REMAIN IN EFFECT UNTIL 5 PM WEDNESDAY FOR LOW HUMIDITIES AND MODERATE TO STRONG WINDS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEED THIS EVENING. TXZ183-184-202-110600- VAL VERDE-EDWARDS-KINNEY- 547 PM CST TUE FEB 10 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL TEXAS. .DAY ONE...TONIGHT... A HIGH WIND WARNING IS IN EFFECT UNTIL 8 PM THIS EVENING. A WIND ADVISORY IS IN EFFECT UNTIL MIDNIGHT. A RED FLAG WARNING IS IN EFFECT TONIGHT. A STRONG COLD FRONT MOVING RAPIDLY EASTWARD ACROSS WEST TEXAS INTO SOUTH CENTRAL TEXAS HAS RESULTED IN A VERY TIGHT PRESSURE GRADIENT ACROSS THE AREA THIS EVENING. STRONG WEST AND NORTHWEST WINDS OF 35 TO 45 MPH WITH GUSTS TO 55 MPH WILL ACCOMPANY THE COLD FRONT ALONG WITH SOME BLOWING DUST. WINDS WILL SUBSIDE AFTER 8 PM TO 20 TO 30 MPH AND 15 TO 25 MPH AFTER MIDNIGHT. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY... A RED FLAG WARNING WILL REMAIN IN EFFECT UNTIL 5 PM WEDNESDAY FOR LOW HUMIDITIES AND MODERATE TO STRONG WINDS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED.
The Laughlin AFB radar (KDFX), 109 km away, was scanning. The volume nearest the first event began at 02:45 UTC.
28 hail, 6 thunderstorm wind, 4 high wind, 2 strong wind. Local standard time, as filed.
A cold front moving through the area caused high winds which overturned boats on Lake Amistad and downed power lines in Del Rio.
A cold front moved through the area causing high winds 2 miles northwest of Del Rio where a COOP observer measured a gust of 59 mph.
A cold front moved through the area causing high winds with a peak gust of 61 mph measured by the ASOS at Del Rio International Airport.
A cold front moved through the area causing high winds with a peak gust of 60 mph measured by the ASOS at Laughlin AFB.
Strong winds behind a cold front downed power lines one mile north of Rocksprings. A COOP observer estimated the strongest gusts at 50 mph.
Strong winds behind a cold front knocked down power lines and tree limbs and broke some car windows 2 miles west of Brackettville.
A resident reported a measured wind gust of 67 mph along with small hail and said some of their animals were missing as a result.
A resident reported a wind gust of 67 mph measured with a Davis weather station.
The public reported quarter size hail and a few tree branches down in Round Mountain.
One of the broadcast media relayed a report from the Williamson County EMS of penny size hail near the intersection of County Rds. 201 and 206.
A storm chaser reported hail ranging from marble to ping pong size near Spring Branch.
One inch hail reported in San Antonio on I-10 near Huebner Rd.
KSAT TV reported one inch hail in northwestern San Antonio.
A spotter reported nickel size hail in the Medical Center area of San Antonio.
A spotter reported quarter to ping pong ball size hail at the intersection of Vance Jackson and De Zavala Rds. in San Antonio.
A resident reported quarter size hail near River Mountain Ranch and Ranch Road 474.
A CoCoRaHS observer reported golf ball size hail, which caused some minor tree damage, in Hill Country Village.
An off duty National Weather Service employee reported golf ball size hail in San Antonio.
An off duty National Weather Service employee reported quarter size hail in northern San Antonio.
An off duty National Weather Service employee reported half dollar size hail in the Stone Oak area of San Antonio.
A resident reported roof damage to their home and several trees down near Clear Water Estates at Canyon Lake Dam.
An off duty National Weather Service employee reported golf ball size hail in northern San Antonio.
A storm chaser reported quarter size hail 3 miles southwest of Lackland AFB.
One of the San Antonio TV stations relayed a report of quarter size hail at Seaworld San Antonio.
The weather observer reported penny size hail at Port San Antonio (Kelly AFB).
A CoCoRaHS observer reported quarter size hail 10 miles west-northwest of Woodcreek.
A CoCoRaHS observer reported quarter size hail in the Dominion area of San Antonio.
A CoCoRaHS observer reported quarter size hail in northern San Antonio.
A spotter reported a measured wind gust of 60 mph just north of the Alamo Quarry Market in San Antonio.
A spotter reported quarter size hail near the Alamo Quarry Market in San Antonio. This is the same storm which produced the strong wind gust.
A resident reported quarter size hail in northern San Antonio near the intersection of Loop 1604 and Bulverde Rd.
The weather observer at San Antonio International Airport reported quarter size hail.
An off duty National Weather Service employee reported quarter size hail, estimated wind gusts of 55 mph, and 0.51 inches of rain in 30 minutes in Terrell Hills.
One of the broadcast media relayed a report of penny size hail.
One of the broadcast media relayed a report of nickel size hail at Avery Ranch.
A resident reported quarter size hail in northern San Antonio.
A resident reported nickel size hail.
The Travis County Emergency Manager reported numerous trees blown down and blocking the intersection of Bluff Bend Dr. and Newport Ave.
One of the broadcast media relayed a report of penny size hail.
The public reported trees down in Plum.
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, February 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: 145984, 145985, 145986, 145987, 145988, 145989, 145965, 145979, 148051, 145983, 145890, 145849, 145851, 145853, 145859, 145862, 145863, 145865, 145866, 145867, 145982, 145876, 145881, 145884, 145944, 145946, 145980, 145885, 145887, 145888, 145947, 145892, 145945, 145973, 145977, 145981, 145990, 145966, 145978, 148052.