Flash Flood Warning 116, NWS Brownsville, TX

000 
WGUS74 KBRO 300022
FFSBRO

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

TXC505-300045-
ZAPATA TX-
720 PM CDT SUN JUL 29 2007

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR
NORTHWESTERN ZAPATA COUNTY...

AT 718 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A THUNDERSTORM PRODUCING FLASH FLOODING OVER THE WARNED 
AREA. MOTORISTS ALONG EXPRESSWAY 83 JUST NORTH OF SAN YGNACIO SHOULD 
DRIVE WITH EXTREME CAUTION...AND REPORT ANY FLOODING THAT THEY SEE.

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

LAT...LON 2704 9952 2711 9909 2738 9916 2730 9957

$$

TOMASELLI

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

.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.

&&

.AVIATION...SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS ARE
OCCURRING OVER THE LOWER RGV EARLY THIS AFTERNOON. GENERAL VFR WITH
OCCASIONAL MVFR CONDITIONS ARE ASSOCIATED WITH THESE SHOWERS AND
WILL CONTINUE FOR THE NEXT COUPLE OF HOURS. IMPROVING CONDITIONS ARE
EXPECTED OVERNIGHT AND ISOLATED SHOWERS ARE POSSIBLE AGAIN ON MONDAY.

&&

.MARINE...AT 1PM BUOY 42020 REPORTED SSE WINDS AT 14 KNOTS ALONG
WITH 2-FOOT SEAS. THE MARINE FORECAST IS ESSENTIALLY PERSISTENCE
THIS WEEK AS LIGHT TO MODERATE SOUTHEAST WINDS AND BENIGN SEA
CONDITIONS CONTINUE UNDER A WEAK PRESSURE GRADIENT. ISOLATED SHOWERS
AND THUNDERSTORMS WILL BE POSSIBLE EACH DAY THIS WEEK.

&&

.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

59...SYNOPTIC
68...MARINE/AVIATION

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