Flash Flood Warning 117, NWS Brownsville, TX

000 
WGUS74 KBRO 300110
FFSBRO

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
808 PM CDT SUN JUL 29 2007

TXC505-300130-
ZAPATA TX-
808 PM CDT SUN JUL 29 2007

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 830 PM CDT FOR
NORTHWESTERN ZAPATA COUNTY...

AT 804 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A THUNDERSTORM PRODUCING FLASH FLOODING OVER THE WARNED
AREA.

MOTORISTS ALONG EXPRESSWAY 83 NORTH OF ZAPATA SHOULD DRIVE WITH 
EXTREME CAUTION...AND REPORT ANY FLOODING THAT THEY ENCOUNTER ON 
THE ROAD.

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
BROWNSVILLE.

LAT...LON 2679 9946 2701 9916 2728 9927 2727 9961

$$

TOMASELLI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BROWNSVILLE TX
728 PM CDT SUN JUL 29 2007

.DISCUSSION...STRONG TSTMS W/HVY RAFL CONTINUE ATTM FAR WEST...ALONG
THE ZAPATA/WEBB COUNTY LINE. UPPER LOW OVR WRN TX CONTINUES TO
MEANDER WEST INTO OLE MEX. DYNAMICS CONFINED TO WRN RGV AND POINTS
WEST TO THE SIERRA MADRE ORIENTALS NOW...WITH LESS EFFECT ON RGV WX
WITH TIME.

NRN GULF RIDGE TO REPLACE THIS PESKY FEATURE WHICH CAUSED SO MUCH
HVY RAFL IN TX BY MON...AND CONTINUE TO KEEP THINGS DRY THRU THE
WEEK.

HEAT WILL SLOWLY BECOME A PLAYER THIS WEEK...AS GOOD INSOLATION
DRIVES TEMPS TO THE CENTURY MARK WEST...WITH CONTINUED HIGH DWPTS
REMAINING. HIS AT 105 TO 110 WED AND BEYOND.

NO CHANGES NEEDED.
&&

.PREV DISCUSSION...AIRMASS TYPE SHOWERS AND ISOLATED THUNDERSTORMS
DEVELOPING ON CUE.  NOT A TRUE SEABREEZE WITH LOW AND MID LEVEL
WINDS OUT OF THE SOUTH TO SOUTHEAST AT 10 TO 20 KNOTS. MOVEMENT OF
THE STORMS IS NORTH TO NORTHWEST AT AROUND THE SAME SPEED. RAINFALL
RATES AVERAGING UP TO ONE HALF INCH PER HOUR...SO NO THREAT TO FLASH
FLOODING...THOUGH SOME PONDING OF WATER IS LIKELY...DUE TO QUICK
RUNOFF...WHEN A HEAVIER THUNDERSTORM PASSES OVER POOR DRAINAGE
AREAS. A FEW URBAN AND SMALL STREAM FLOOD ADVISORIES ARE NOT OUT OF
THE QUESTION THIS AFTERNOON AND EARLY EVENING. MOST OF THE ACTIVITY
SHOULD END BY THIS EVENING BUT WILL MAINTAIN LOW POPS ACROSS THE
WESTERN AND NORTHERN SECTIONS OF THE CWA. SAME SCENARIO MONDAY AND
TUESDAY WITH PLENTY OF MOISTURE...HIGH DEW POINTS AND INSTABILITY
WITH A BIT MORE SUN EACH DAY. MODELS CONTINUE TO SHOW WEAK HIGH
PRESSURE BUILDING OVER SOUTH TEXAS THIS COMING WEEK. THE HIGH IS NOT
AS STRONG AS WAS INDICATED TWO TO FOUR DAYS AGO. SO THE SLIGHT
CHANCE OF DIURNAL ISOLATED SHOWERS AND THUNDERSTORMS WILL CONTINUE
THROUGH THE COMING WEEK WITH HIGH TEMPERATURES ANTICIPATED TO BE A
CATEGORY LOWER THAN GUIDANCE. LOW TEMPS TO BE NEAR GUIDANCE NUMBERS
REMAINING WARM AND MUGGY. SOUTHEAST TO SOUTH WINDS TO BE LIGHT
OVERNIGHT AND LIGHT TO MODERATE DURING THE DAY...MAYBE A BIT GUSTY
AT TIMES ALONG AREA BEACHES AND ACROSS EASTERN COUNTIES.

&&

.MARINE...BUOY 42020 REPORTED SOUTH-SOUTHEAST WINDS NEAR 12 KNOTS
GUSTING TO NEAR 14 KNOTS WITH SEAS AT 3 FEET WITH A PERIOD OF 4
SECONDS AT 18 CDT/23 UTC. FAVORABLE MARINE CONDITIONS ARE FORECAST
THROUGH THE NEXT SEVERAL DAYS...WITH LIGHT TO MODERATE WINDS AND LOW
TO MODERATE SEAS. HOWEVER...EXPECT WINDS AND SEAS TO BE BRIEFLY
HIGHER IN THE VICINITY OF ANY THUNDERSTORMS THROUGH THE FORECAST. &&

.AVIATION...THE THREAT OF SHOWERS AND THUNDERSTORMS HAS ENDED FOR
THE TRIO OF REGIONAL AIRPORTS...WITH ONLY HIGH CIRRUS FROM EARLIER
CONVECTION REMAINING. SKIES WILL CLEAR TONIGHT...AND BECOME PARTLY
CLOUDY TOMORROW. ISOLATED SHOWERS AND THUNDERSTORMS MAY OCCUR ON
MONDAY.
&&

.PRELIMINARY POINT TEMPS/POPS...
BAYVIEW/PORT ISABEL  81  89  80  90 /  10  20  10  10
BROWNSVILLE          79  92  79  93 /  10  20  10  20
HARLINGEN            77  94  78  94 /  10  20  10  20
MCALLEN              79  95  79  97 /  10  20  10  20
RIO GRANDE CITY      79  95  79  98 /  20  20  10  10
SOUTH PADRE ISLAND   82  88  82  88 /  10  20  10  10

&&

.BRO WATCHES/WARNINGS/ADVISORIES...
TX...NONE.
GM...NONE.
&&

THIS PRODUCT IS ALSO AVAILABLE ON THE WEB AT:
HTTP://WWW.WEATHER.GOV/BROWNSVILLE

58...SYNOPTIC
66...MARINE/AVIATION
CAMPBELL...MESO

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE BROWNSVILLE TX
445 PM CDT SUN JUL 29 2007

TXZ248>257-301100-
ZAPATA-JIM HOGG-BROOKS-KENEDY-STARR-HIDALGO-INLAND WILLACY-
INLAND CAMERON-COASTAL WILLACY-COASTAL CAMERON-
445 PM CDT SUN JUL 29 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR DEEP SOUTH TEXAS.

.DAY ONE...REMAINDER OF TONIGHT.

RAINS HAVE FINALLY MOVED NORTH AND NORTHWEST OF OUR REGION NOW...AS
A PERSISTENT UPPER LOW PRESSURE MOVES WEST INTO NORTHERN MEXICO. NO
HAZARDOUS WEATHER IS EXPECTED OVERNIGHT.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

ISOLATED AFTERNOON SHOWERS ARE POSSIBLE MAINLY MONDAY. OTHERWISE...A
NEEDED DRY-OUT IS FORECAST FOR THE RIO GRANDE VALLEY THROUGH THE
COMING WEEK.  AFTERNOON HEAT INDEX READINGS MAY REACH 105 TO 110
DEGREES PERIODICALLY THIS WEEK.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTER ACTIVATION IS NOT EXPECTED.

PHILO

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
217 PM CDT SUN JUL 29 2007

TXZ251-292030-
KENEDY-
INCLUDING THE CITY OF...SARITA
217 PM CDT SUN JUL 29 2007

...STRONG THUNDERSTORM AFFECTING KENEDY COUNTY...

AT 215 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS
TRACKING A STRONG THUNDERSTORM OVER SOUTHWEST KENEDY COUNTY
...ROUGHLY 14 MILES SOUTHWEST OF THE BORDER PATROL CHECKPOINT
...AND MOVING NORTH AT AROUND 15 MILES PER HOUR.

SMALL HAIL...WIND GUSTS TO 40 MILES PER HOUR...AND VIGOROUS
LIGHTNING ARE ASSOCIATED WITH THIS THUNDERSTORM. ADDITIONALLY...
THIS THUNDERSTORM IS PRODUCING LOCALLY HEAVY RAINFALL...WITH
AMOUNTS BETWEEN 1 AND 2 INCHES PER HOUR.

RESIDENTS OF KENEDY COUNTY AND BORDER PATROL AGENTS SHOULD TAKE
SHELTER FROM THIS STORM NOW.

TOMASELLI