Strong instability developed over South Texas during the afternoon hours on May 9th as an upper level disturbance over northeast Mexico approached the area. Scattered thunderstorms developed over the Brush Country early in the afternoon.
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 CRP wrote it up.
Strong instability developed over South Texas during the afternoon hours on May 9th as an upper level disturbance over northeast Mexico approached the area. Scattered thunderstorms developed over the Brush Country early in the afternoon. Another area of thunderstorms formed over northeast Mexico and moved across the Rio Grande by late afternoon. Some of these thunderstorms produced damaging winds and large hail in the Laredo area.
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 Corpus Christi, TX wrote its last area forecast discussion before the first event at May 9, 2:27 PM CST, 2 hours 8 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE CORPUS CHRISTI TX 327 PM CDT FRI MAY 9 2014 .SHORT TERM (TONIGHT THROUGH SATURDAY NIGHT)...CONVECTION CONTINUES TO DEVELOP ACROSS FORECAST AREA THIS AFTERNOON...ESPECIALLY OVER NORTHWEST ZONES. EARLIER CONVECTION EAST HAS PRETTY WELL STABILIZED COASTAL BEND...FOR NOW. WEB AND DUVAL COUNTIES LARGELY UNTAPPED SO FAR THIS AFTERNOON AS MOST OF THE WESTERN CONVECTION HAS STAYED NORTH OF THERE. CURRENT CONVECTION ALIGNED WITH UPPER LEVEL JET...INCLUDING DEVELOPING STORMS OVER THE SIERRA MADRE. MOST ALL MESO MODELS...AND SOME GLOBAL MODELS STILL INDICATE SIERRA MADRE CONVECTION DEVELOPING INTO AN MCS AND PUSHING EAST INTO TEXAS THIS EVENING. TIMING ACROSS THE RIO GRANDE HAS BEEN RELATIVELY CONSISTENT IN THE 23-01Z TIME FRAME. MOST VIGOROUS CONVECTION OVER THE SIERRA MADRE HAS BEEN AROUND CLOETE AND SABINAS MEXICO...WITH AN EAST OR EAST NORTHEAST MOVEMENT. CONVECTION SOUTH OF THERE HAS STARTED TO SHOW SIGNS ON SATELLITE OF STRENGTHENING. COULD SEE THIS ALL MERGE INTO THE PREDICTED MCS THIS EVENING. STARTING TO SEE BREAKS IN THE CLOUDS EXTENDING TO THE COAST...BUT NOT SURE THERES ENOUGH TIME TO REALLY DESTABILIZE THE REGION. FOR THAT REASON...CONFIDENCE IN ANY MCS TO MAKE IT ALL THE WAY ACROSS THE CWA IS NOT HIGH. MOST MODELS WEAKEN THE SYSTEM AS IT PUSHES EASTWARD. ADDITIONALLY...UPPER JET AXIS WILL BE SHIFTING SOUTH OF THE FORECAST AREA BY AT LEAST 06Z...WHICH SHOULD LEAD TO A RAPID WEAKENING IN THE SYSTEM AS UPPER LEVEL DIVERGENCE IS CUT OFF. MUCH QUIETER WEATHER SETTLES IN OVERNIGHT AND SATURDAY AS UPPER LEVEL TROUGH PULLS OUT. AND RIDGING BUILDS. DEEP LAYER MOISTURE DECREASES...HOWEVER NEAR SURFACE MOISTURE WILL REMAIN HIGH...KEEPING HUMID CONDITIONS AND MILD LOW TEMPERATURES IN PLACE. && .LONG TERM (SUNDAY THROUGH FRIDAY)...WARM/HOT AND HUMID SUNDAY ACROSS SOUTH TEXAS. SLIGHT CHANCE ISOLATED CONVECTION DEVELOPING IN HIGHER TERRAIN OF MEXICO LATE SUNDAY AFTERNOON COULD MAKE IT INTO LA SALLE AND WEBB COUNTIES SUNDAY NIGHT. THE NEXT DEEP UPPER TROUGH WILL DIG INTO THE GREAT BASIN AND GET OFF SUNDAY. CONSIDERABLE MODEL VARIABILITY WITH RESPECT TO HOW FAST THE TROUGH MOVES OUT INTO THE PLAINS. AGREE WITH WPC MODEL DIAGNOSTIC DISCUSSION...AND FOR NOW AM SIDING TOWARDS SLOWER 12Z ECMWF WITH SUPPORT FROM THE ECMWF ENSEMBLE MEAN...WHICH HAS BEEN MORE CONSISTENT THAN THE GFS AND GFS ENSEMBLE MEAN. BOTH SOLUTIONS INDICATE HIGHER POPS AND POTENTIAL FOR GOOD RAINFALL ACROSS THE CWA...BUT A SLIGHTLY MORE PROLONGED AND DELAYED EVENT WITH THE SLOWER ECMWF. WITH THAT SAID...MOISTURE WILL STEADILY INCREASE WITH STRONG SOUTHERLY LOW LEVEL JET SUNDAY NIGHT INTO MONDAY AS THE UPPER TROUGH MOVES INTO THE FOUR CORNERS REGION. POSSIBILITY OF A WEAK SHORT WAVE TROUGH EMERGING OUT OF MEXICO ON MONDAY BRINGING A MODEST UPPER LEVEL JET STREAK AND DIVERGENT FLOW IN THE LEFT EXIT REGION OF THE JET WILL LEAD TO GOOD CHANCES FOR SHOWERS AND THUNDERSTORMS ACROSS THE WESTERN BRUSH COUNTRY AND RIO GRANDE LATE MONDAY AFTERNOON AND NIGHT. AGAIN FOLLOWING CLOSER TO THE ECMWF...RELATIVELY STRONG LATE SEASON COLD FRONT WILL ENTER THE NORTHWEST AND WESTERN CWA DURING THE DAY ON TUESDAY. BACKED LOW LEVEL FLOW ACROSS THE COASTAL PLAINS AND EASTERN BRUSH COUNTRY WILL OCCUR...ALONG WITH SOUTH TEXAS REMAINING IN SPLIT/DIVERGENT FLOW ALOFT...BETWEEN ACTIVE SUBTROPICAL JET JUST TO THE SOUTH AND THE POLAR JET MOVING EAST INTO THE PLAINS. RICH/DEEP MOISTURE IN PLACE AHEAD OF THE FRONT WILL LEAD TO GOOD CHANCES FOR SHOWERS AND THUNDERSTORMS ACROSS CENTRAL AND EVENTUALLY EASTERN AREAS OF THE CWA TUESDAY AND POSSIBLY INTO TUESDAY NIGHT. 12Z ECMWF INDICATED FRONT MOVING THROUGH THE COASTAL AREAS TUESDAY NIGHT. DRIER AIR BEHIND THE FRONT AND ALOFT ON THE SOUTHWEST SIDE OF THE UPPER TROUGH WORKS INTO THE CWA WEDNESDAY. COOL TEMPERATURES FOR THIS TIME OF YEAR WEDNESDAY AND THURSDAY...MODIFYING FRIDAY AFTERNOON. && .PRELIMINARY POINT TEMPS/POPS... CORPUS CHRISTI 73 89 74 91 74 / 40 10 10 10 10 VICTORIA 71 88 73 89 73 / 40 10 10 10 10 LAREDO 74 99 76 100 76 / 40 10 10 10 20 ALICE 72 93 73 94 74 / 40 10 10 10 10 ROCKPORT 74 84 75 86 74 / 40 10 10 10 10 COTULLA 72 95 73 95 75 / 40 10 10 10 10 KINGSVILLE 73 91 74 92 74 / 40 10 10 10 10 NAVY CORPUS 73 84 74 86 74 / 40 10 10 10 10 && .CRP WATCHES/WARNINGS/ADVISORIES... TX...NONE. GM...NONE. && PZ/83...SHORT TERM JR/76...LONG TERM
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE CORPUS CHRISTI TX 1033 AM CDT FRI MAY 9 2014 GMZ230-235-250-255-270-275-TXZ229>234-239>247-101545- BAYS AND WATERWAYS FROM BAFFIN BAY TO PORT ARANSAS- BAYS AND WATERWAYS FROM PORT ARANSAS TO PORT O'CONNOR- COASTAL WATERS FROM BAFFIN BAY TO PORT ARANSAS OUT 20 NM- COASTAL WATERS FROM PORT ARANSAS TO MATAGORDA SHIP CHANNEL OUT 20 NM-WATERS FROM BAFFIN BAY TO PORT ARANSAS FROM 20 TO 60 NM- WATERS FROM PORT ARANSAS TO MATAGORDA SHIP CHANNEL FROM 20 TO 60 NM-LA SALLE-MCMULLEN-LIVE OAK-BEE-GOLIAD-VICTORIA-WEBB-DUVAL- JIM WELLS-KLEBERG-NUECES-SAN PATRICIO-ARANSAS-REFUGIO-CALHOUN- 1033 AM CDT FRI MAY 9 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH TEXAS AND THE MIDDLE TEXAS COASTAL WATERS. .DAY ONE...TODAY AND TONIGHT THUNDERSTORMS ARE LIKELY THIS AFTERNOON AND EVENING ACROSS SOUTH TEXAS. SOME STORMS COULD BE STRONG TO SEVERE WITH LARGE HAIL AND DAMAGING WIND BEING THE PRIMARY THREATS. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY THERE IS A CHANCE FOR THUNDERSTORMS MONDAY THROUGH EARLY WEDNESDAY MORNING. SOME OF THE STORMS COULD BE STRONG MONDAY THROUGH TUESDAY MORNING WITH GUSTS TO AROUND 40 MPH AND SMALL HAIL POSSIBLE. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED LATER THIS AFTERNOON. PZ
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CORPUS CHRISTI TX 221 PM CDT FRI MAY 9 2014 TXZ229-092000- LA SALLE- 221 PM CDT FRI MAY 9 2014 ...A STRONG THUNDERSTORM WAS DEVELOPING ACROSS LA SALLE COUNTY... AT 215 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A DEVELOPING STRONG THUNDERSTORMS OVER COTULLA AND LA SALLE COUNTY...MOVING TO THE NORTHEAST. STRONG OUTFLOW ASSOCIATED WITH THESE THUNDERSTORMS MAY PRODUCE WIND GUSTS BETWEEN 40 AND 50 MPH. HART
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CORPUS CHRISTI TX 248 PM CDT FRI MAY 9 2014 TXZ229-230-092045- LA SALLE-MCMULLEN- 248 PM CDT FRI MAY 9 2014 ...STRONG THUNDERSTORMS WERE AFFECTING LA SALLE AND MCMULLEN COUNTIES... AT 243 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM CHRISTINE TO 6 MILES SOUTHWEST OF ARTESIA WELLS...OR ALONG A LINE EXTENDING FROM CHRISTINE TO 13 MILES NORTH OF ENCINAL...MOVING NORTHEAST AT 25 MPH. PEOPLE IN NORTHERN LA SALLE AND NORTHERN MCMULLEN COUNTIES... INCLUDING THE CITIES OF ARTESIA WELLS...LOS ANGELES...ZELLA... FOWLERTON AND CROSS...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 WIND GUSTS OF 40 TO 50 MPH ARE POSSIBLE WITH THESE STORMS. HART
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CORPUS CHRISTI TX 415 PM CDT FRI MAY 9 2014 TXZ239-092215- WEBB- 415 PM CDT FRI MAY 9 2014 ...STRONG THUNDERSTORMS WERE AFFECTING WEBB COUNTY... AT 411 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 11 MILES WEST OF SEVEN SISTERS TO 16 MILES SOUTH OF FORT EWELL SITE TO CALLAGHAN...OR ALONG A LINE EXTENDING FROM 14 MILES NORTHWEST OF FREER TO 17 MILES SOUTHEAST OF ENCINAL TO 14 MILES SOUTH OF ENCINAL...MOVING EAST AT 20 MPH. PEOPLE IN CENTRAL WEBB COUNTY SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR POSSIBLE WARNINGS AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD SEVERE WEATHER THREATEN. MARBLE SIZE HAIL...AND WINDS 40 TO 50 MPH ARE POSSIBLE WITH THESE STORMS. HART
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CORPUS CHRISTI TX 447 PM CDT FRI MAY 9 2014 TXZ230-240-092245- DUVAL-MCMULLEN- 447 PM CDT FRI MAY 9 2014 ...A STRONG THUNDERSTORM WAS AFFECTING DUVAL AND MCMULLEN COUNTIES... AT 444 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR SEVEN SISTERS...OR 7 MILES NORTH OF FREER... MOVING SOUTHEAST AT 25 MPH. PEOPLE IN NORTHERN DUVAL AND SOUTHERN MCMULLEN COUNTIES...INCLUDING THE CITIES OF SEVEN SISTERS...ROSITA AND SAN DIEGO...SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR POSSIBLE WARNINGS AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD SEVERE WEATHER THREATEN. DIME SIZE HAIL...AND WINDS 40 TO 50 MPH ARE EXPECTED WITH THIS STORM. HART
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CORPUS CHRISTI TX 452 PM CDT FRI MAY 9 2014 TXZ239-092245- WEBB- 452 PM CDT FRI MAY 9 2014 ...A STRONG THUNDERSTORM WAS APPROACHING WEBB COUNTY... AT 449 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 22 MILES SOUTH OF CHUPADERA RANCH AIRPORT...OR 42 MILES NORTHWEST OF LAREDO...MOVING SOUTHEAST AT 30 MPH. PEOPLE IN NORTHWESTERN WEBB COUNTY...INCLUDING THE CITIES OF COLUMBIA BRIDGE AND RANCHOS PENITAS WEST...SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR POSSIBLE WARNINGS AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD SEVERE WEATHER THREATEN. DIME SIZE HAIL...AND WINDS 40 TO 50 MPH ARE POSSIBLE WITH THIS STORM. HART
The Corpus Christi radar (KCRP), 196 km away, was scanning. The volume nearest the first event began at 22:33 UTC.
4 thunderstorm wind, 2 hail. Local standard time, as filed.
Tractor trailer was flipped on a connector ramp from Loop 20 to Interstate 35 in north Laredo.
Laredo International Airport AWSS measured a wind gust to 66 MPH.
A canopy of a gas station was blown over in the Concord Hills subdivision of south Laredo.
Golf ball sized hail damaged cars near Alexander High School on the northeast side of Laredo.
Quarter sized hail occurred near the Department of Public Safety Office near Bob Bullock Loop on the east side of Laredo.
Law enforcement reported a tree in the road on Farm to Market Road 716 west of Premont.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2014Every state in 2014This day in weather historyWarnings in Texas, May 2014
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: 519077, 519085, 519089, 519090, 519076, 519078.