Flash Flood Warning 1, NWS Corpus Christi, TX

265 
WGUS74 KCRP 110459
FFSCRP

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
1159 PM CDT FRI MAY 10 2013

TXC479-110545-
/O.CON.KCRP.FF.W.0001.000000T0000Z-130511T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WEBB-
INCLUDING THE CITY OF LAREDO
1159 PM CDT FRI MAY 10 2013

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1245 AM CDT FOR
CENTRAL WEBB COUNTY...

AT 1151 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE MODERATE TO HEAVY RAIN OVER THE WARNED AREA. DOPPLER RADAR 
ESTIMATED 1.5 TO 2 INCHES OF RAIN HAS FALLEN ACROSS THE CENTRAL AND 
SOUTHERN PARTS OF LAREDO. RAIN SHOULD BECOME LIGHTER OVER THE NEXT 
30 MINUTES TO AN HOUR. 

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO DOCTORS
HOSPITAL OF LAREDO...LAREDO COMMUNITY COLLEGE...LAREDO COUNTRY
CLUB...LAREDO INTERNATIONAL AIRPORT...ORVIL AND RANCHOS PENITAS WEST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 200 AM CDT
SATURDAY MORNING FOR CENTRAL TEXAS.

&&

LAT...LON 2738 9950 2746 9951 2747 9949 2749 9950
      2749 9953 2756 9952 2760 9955 2760 9959
      2763 9961 2762 9966 2766 9970 2773 9970
      2773 9927 2734 9927 2734 9952

$$

PZ

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
833 PM CDT FRI MAY 10 2013

.DISCUSSION...SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR ALL OF
SOUTH TEXAS UNTIL 2 AM. TWO AREAS OF CONCERN...FIRST BEING LONG
TRACK SUPERCELL THAT HAS MOVED OUT OF ATASCOSA COUNTY AND INTO
MCMULLEN AND LIVE OAK COUNTIES...WITH HISTORY OF PRODUCING LARGE
HAIL. UNSTABLE ATMOSPHERE CONTINUES ACROSS THE CENTRAL AND NORTHERN
COUNTIES AND THIS STORM SHOULD CONTINUE TO TRACK SOUTHEAST THROUGH
THE NEXT HOUR OR TWO. ATMOSPHERE BECOMES MORE CAPPED NEAR THE
COAST...BUT SHOULD COLD POOL/OUTFLOW BOUNDARY BECOME BETTER
ESTABLISHED THERE IS THE CHANCE STORMS COULD REACH THE COAST.
FARTHER WEST...UPPER LEVEL SUPPORT IS NOW REACHING COAHUILA AND
THE RIO GRANDE...AND HAVE SEEN INCREASING DEVELOPMENT OF STORMS
ACROSS MEXICO. SOME OF THESE STORMS COULD WORK INTO THE RIO GRANDE
PLAINS AND BRUSH COUNTRY.

&&

.PREV DISCUSSION... /ISSUED 630 PM CDT FRI MAY 10 2013/

DISCUSSION...UPDATED FOR 00Z TAFS.

AVIATION...ACTIVE WEATHER EXPECTED TONIGHT AND TOMORROW ACROSS
THE TAF SITES. THUNDERSTORMS ARE EXPECTED TO DEVELOP AROUND THE
LRD SITE BETWEEN 01Z AND 03Z...THEN EXPAND AND MOVE EASTWARD
ACROSS THE REST OF SOUTH TEXAS THROUGH THE OVERNIGHT. A PERIOD OF
SEVERE STORMS IS POSSIBLE AT THE ONSET OF CONVECTION...THEN RAIN
WILL BE POSSIBLE THROUGH THE DAY TOMORROW. MVFR TO IFR CIGS ARE
EXPECTED THOUGH TOMORROW MORNING...BUT SHOULD IMPROVE IN THE
AFTERNOON.

PREV DISCUSSION... /ISSUED 337 PM CDT FRI MAY 10 2013/

SHORT TERM (TONIGHT THROUGH SATURDAY NIGHT)...IT WILL TAKE SOME
TIME FOR MOISTURE/INSTABILITY TO RECOVER OVER SOUTH TEXAS IN THE
WAKE OF THE OUTFLOW BOUNDARY. BUT IT DOES APPEAR TO BE OCCURRING
AS WINDS HAVE VEERED TO EASTERLY AND DEWPOINTS HAVE INCHED BACK
UP AROUND 70 DEGREES ALONG THE COAST. LAPS/SPC ANALYSIS SHOWS
INSTABILITY BUILDING ALONG THE RIO GRANDE BACK INTO THE HIGHER
TERRAIN IN NORTHERN MEXICO. STILL HAVING TO DEAL WITH CAPPING
INVERSION OVER THE AREA BUT MODELS SHOW THE CAP ERODING AS AN
IMPULSE IN THE SOUTHWEST FLOW ALOFT COMES OUT OF COAHUILA TONIGHT.
MODELS CONTINUE TO FORECAST INCREASING UPPER LEVEL DIVERGENCE OVER
SOUTH TEXAS LATER TONIGHT IN THE LEFT EXIT REGION OF 100 KNOT 25H
JET STREAK COMING OUT OF COAHUILA. THE RAPID REFRESH MODEL HAS
HAD THE BEST HANDLE ON CONVECTION EARLIER TODAY AND CURRENT
ACTIVITY DEVELOPING OVER THE EDWARDS PLATEAU INTO COAHUILA. LOW
LEVEL EASTERLY FLOW SHOULD MAINTAIN STORMS OVER NORTHEAST MEXICO
INTO THE BRUSH COUNTRY LATER THIS EVENING WITH THE POSSIBILITY OF
STORMS STEADILY MOVING EAST AS THE CAP WEAKENS OVER THE COASTAL
PLAINS. 0-6 KM SHEAR WILL REMAIN AT 50-60 KNOTS ACROSS SOUTH TEXAS
WITH ADEQUATE INSTABILITY TO KEEP A THREAT OF SEVERE STORMS IN THE
FORECAST FOR TONIGHT.

THE FRONT WILL MOVE THROUGH THE AREA LATE TONIGHT BUT ENOUGH
MOISTURE WILL REMAIN OVER THE REGION AS ANOTHER SHORT WAVE TROUGH
AND JET STREAK ENTER SOUTH TEXAS FROM THE SOUTHWEST SATURDAY. WILL
KEEP LIKELY POPS GOING FOR THE COASTAL PLAINS INTO THE COASTAL
WATERS FOR SATURDAY. THE UPPER LOW WILL BECOME DETACHED FROM THE
NORTHERN STREAM AS AN UPPER TROUGH SWINGS THROUGH OHIO RIVER
VALLEY SATURDAY NIGHT. THIS WILL BRING IN SOME DRIER AIR FROM THE
NORTH-NORTHEAST INTO THE SOUTH TEXAS WITH DIMINISHING RAIN CHANCES
FOR VICTORIA AREA. THE MOISTURE AXIS WILL REMAIN ALONG THE RIO
GRANDE KEEPING A THREAT FOR SCATTERED CONVECTION SATURDAY NIGHT.

LONG TERM (SUNDAY THROUGH FRIDAY)...EXTENDED PERIOD BEGINS WITH
MODELS IN SOME DISARRAY AS THEY STRUGGLE TO HANDLE MOISTURE POOLING
BEHIND THE COLD FRONT MOVING THROUGH OVER THE WEEKEND. CURRENT
THINKING IS THAT MOISTURE POOLING ALONG THE RIO GRANDE COULD COMBINE
WITH WEAK UPSLOPE FLOW TO TRIGGER ISOLATED CONVECTION OUT WEST
SUNDAY AND SUNDAY NIGHT.

THIS SCENARIO EXTENDS INTO MONDAY AND TUESDAY AS A SURFACE HIGH
BUILDS INTO THE CENTRAL GULF COAST AND ADDITIONAL MOISTURE WRAPS
AROUND THE HIGH ON GENERALLY EASTERLY MARINE FLOW. UPPER SUPPORT
REMAINS NEUTRAL TO SLIGHTLY POSITIVE AS MODELS MAINTAIN AN UPPER LOW
OVER BAJA CALIFORNIA AND ROTATE WEAK RIPPLES THROUGH THAT FLOW. HAVE
LEFT IN LOW CHANCE POPS THROUGH TUESDAY NIGHT TO HANDLE THIS
POSSIBILITY. BY WEDNESDAY THE UPPER SUPPORT FINALLY LIFTS OUT AND
GULF MOISTURE CONDUIT BREAKS DOWN...SO EXPECT DRY WEATHER FROM THERE
ON OUT WITH WARMING TEMPERATURES AS GENERALLY UNSETTLED PERIOD ENDS.

EXPECT TEMPERATURES TO STAY BELOW NORMALS THROUGH THE FIRST PART OF
NEXT WEEK ANTICIPATING HIGHER THEN NORMAL CLOUD COVER AND HUMIDITY
LEVELS. HEIGHTS AND TEMPERATURES LOOK TO INCREASE SUBSTANTIALLY
TOWARD THE END OF THE PERIOD.

&&

.PRELIMINARY POINT TEMPS/POPS...
CORPUS CHRISTI    69  83  66  82  64  /  60  60  20  20  10
VICTORIA          67  82  62  82  60  /  60  50  10  10  10
LAREDO            72  85  67  84  65  /  60  60  40  30  20
ALICE             69  83  65  82  61  /  60  60  20  20  10
ROCKPORT          69  81  68  81  67  /  60  60  20  10  10
COTULLA           68  84  63  82  61  /  60  40  20  10  10
KINGSVILLE        70  84  66  82  62  /  60  60  20  20  10
NAVY CORPUS       70  80  69  79  67  /  60  60  20  20  10

&&

.CRP WATCHES/WARNINGS/ADVISORIES...
TX...NONE.
GM...NONE.

&&

JR/76...SHORT TERM

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
734 PM CDT FRI MAY 10 2013

GMZ230-235-250-255-270-275-TXZ229>234-239>247-111200-
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-
734 PM CDT FRI MAY 10 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH TEXAS AND THE MIDDLE
TEXAS COASTAL WATERS.

.DAY ONE...TONIGHT

SCATTERED SHOWERS AND THUNDERSTORMS WILL MOVE ACROSS SOUTH TEXAS
TONIGHT. SOME STORMS MAY BECOME SEVERE...PRODUCING LARGE HAIL AND
DAMAGING STRAIGHT-LINE WINDS. AN ISOLATED TORNADO CAN NOT BE
RULED OUT. A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 2 AM CDT
FOR ALL OF SOUTH TEXAS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

SCATTERED TO NUMEROUS THUNDERSTORMS ARE EXPECTED TO PERSIST ON
SATURDAY ACROSS MUCH OF SOUTH TEXAS...WITH THE MAIN SEVERE WEATHER
CONCERN SHIFTING MORE SOUTH OF THE AREA. THUNDERSTORMS WILL REMAIN
IN THE FORECAST OVER THE RIO GRANDE PLAINS AND SOUTHERN BRUSH
COUNTRY SUNDAY AND MONDAY...WITH THUNDERSTORM CHANCES SPREADING
FARTHER NORTH AND EAST ON TUESDAY AS AN UPPER LEVEL TROUGH
APPROACHES TEXAS. HOWEVER...NO ORGANIZED SEVERE WEATHER IS EXPECTED
SUNDAY THROUGH TUESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS REQUESTED TONIGHT. PLEASE RELAY ALL REPORTS
TO LOCAL LAW ENFORCEMENT OR THE NATIONAL WEATHER SERVICE IN CORPUS
CHRISTI.

JR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
828 PM CDT FRI MAY 10 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0814 PM     HAIL             6 ENE CROSS             28.63N 98.46W
05/10/2013  1.00 INCH        MCMULLEN           TX   TRAINED SPOTTER

            QUARTER SIZE HAIL. ALSO HAD THUNDERSTORM WIND DAMAGE WITH
            DAMAGE OCCURRING TO A GARAGE.

&&

HART

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
858 PM CDT FRI MAY 10 2013

TXZ229-239-110245-
LA SALLE-WEBB-
858 PM CDT FRI MAY 10 2013

...A STRONG THUNDERSTORM AFFECTING LA SALLE AND WEBB COUNTIES...

AT 855 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS ARE TRACKING
A STRONG THUNDERSTORM 10 MILES SOUTH OF CATARINA...OR 21 MILES
NORTHWEST OF ENCINAL...MOVING EAST AT 40 MPH.

PENNY SIZE HAIL...AND WINDS 40 TO 50 MPH ARE EXPECTED WITH THIS
STORM.

PZ

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
909 PM CDT FRI MAY 10 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0908 PM     HAIL             THREE RIVERS            28.47N 98.18W
05/10/2013  0.25 INCH        LIVE OAK           TX   EMERGENCY MNGR

&&

HART

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
911 PM CDT FRI MAY 10 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0910 PM     HAIL             SW THREE RIVERS         28.46N 98.18W
05/10/2013  1.00 INCH        LIVE OAK           TX   TRAINED SPOTTER

            REPORT FROM SPOTTER NETWORK.

&&

HART

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
958 PM CDT FRI MAY 10 2013

TXZ239-110345-
WEBB-
958 PM CDT FRI MAY 10 2013

...A STRONG THUNDERSTORM MOVING INTO NORTHWEST WEBB COUNTY...

AT 955 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
TRACKING A STRONG THUNDERSTORM 19 MILES SOUTHEAST OF CHUPADERA RANCH
AIRPORT...OR 36 MILES WEST OF ENCINAL...MOVING NORTHEAST AT 40 MPH.

DIME SIZE HAIL...AND WINDS 30 TO 40 MPH ARE EXPECTED WITH THIS STORM.

PZ

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
1035 PM CDT FRI MAY 10 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0814 PM     TSTM WND DMG     6 ENE CROSS             28.63N 98.46W
05/10/2013                   MCMULLEN           TX   TRAINED SPOTTER

            FOUR POWER POLES DOWN, ALONG WITH DAMAGE TO A GARAGE.

&&

GWILK