Flash Flood Warning 1, NWS Brownsville, TX

000 
WGUS74 KBRO 121825
FFSBRO

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
123 PM CDT MON MAR 12 2007

TXC061-121915-
CAMERON TX-
123 PM CDT MON MAR 12 2007

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 215 PM CDT FOR
CENTRAL CAMERON COUNTY...

AT 117 PM CDT...TRAINED WEATHER SPOTTERS REPORTED THUNDERSTORMS 
PRODUCING FLASH FLOODING OVER THE WARNED AREA. TRAINED SPOTTERS FROM 
BROWNSVILLE TO RANCHO VIEJO HAVE REPORTED BETWEEN 2 TO 4 INCHES OF 
RAINFALL IN ONE HOUR.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO BAYVIEW.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

LAT...LON 2597 9756 2588 9743 2606 9723 2636 9738
      2629 9757

$$

53

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BROWNSVILLE TX
827 AM CDT MON MAR 12 2007

.DISCUSSION...SHOWERS AND THUNDERSTORMS CONTINUE TO DEVELOP OVER
DEEP SOUTH TEXAS AND THE ADJACENT COASTAL WATERS IN ADVANCE OF A
MID-LEVEL LOW PRESSURE SYSTEM OVER WEST TEXAS. STORM PREDICTION
CENTER HAS PLACED DEEP SOUTH TEXAS IN A GENERAL THUNDERSTORM RISK
TODAY...WITH A SLIGHT RISK OF SEVERE THUNDERSTORMS FOR TOMORROW.
GIVEN THE UNCERTAINTIES SURROUNDING THE FUTURE MOVEMENT OF THE
MID-LEVEL LOW PRESSURE SYSTEM...WILL NOT INCLUDE SLIGHT RISK OF
SEVERE WEATHER IN ZONE FORECAST PACKAGE AT THIS TIME. NO GRID
ADJUSTMENTS MADE.
&&

.MARINE...AT 7 AM BUOY 19 REPORTED NORTH WINDS AT 16 KNOTS WITH
GUSTS TO 23 KNOTS AND SEAS AT 5 FEET WITH A 6 SECOND PERIOD.
MODERATE SOUTHEASTERLY WINDS WILL PREVAIL OVER THE MARINE AREAS FOR
THE NEXT FEW DAYS. AN UPPER LEVEL LOW PRESSURE SYSTEM LOCATED OVER
NORTHERN MEXICO WILL PRODUCE SHOWERS AND THUNDERSTORMS OVER THE
MARINE AREAS AT TIMES FOR THE NEXT FEW DAYS. THUNDERSTORMS MAY
PRODUCE FREQUENT LIGHTNING, GUSTY WINDS, AND HEAVY RAINFALL. WINDS
AND SEAS WILL BE HIGHER IN OR NEAR ANY SHOWERS OR THUNDERSTORMS. A
COLD FRONT WILL MOVE THROUGH THE MARINE AREAS ON FRIDAY SHIFTING THE
WINDS FROM THE SOUTHEAST TO THE NORTHEAST. WINDS AND SEAS WILL
INCREASE IN THE WAKE OF THE FRONT AND A SMALL CRAFT ADVISORY IS
LIKELY OVER THE MARINE AREAS FRIDAY AFTERNOON THROUGH SATURDAY.
&&

.AVIATION...MVFR TO IFR CONDITIONS ARE OCCURRING AT THE REGIONAL
AIRPORTS. THE LOWERED CONDITIONS ARE DUE TO REDUCED VISIBILITIES AND
CEILINGS. AN UPPER LEVEL LOW PRESSURE SYSTEM WILL PRODUCE SHOWERS
AND THUNDERSTORMS OVER THE CWA AT TIMES FOR THE NEXT FEW DAYS.
SHOWERS AND THUNDERSTORMS MAY RESULT IN TEMPORARY REDUCED CEILINGS
OR VISIBILITIES. THUNDERSTORMS MAY PRODUCE FREQUENT LIGHTNING, GUSTY
WINDS, AND MODERATE TO HEAVY RAINFALL. THEREFORE VFR TO IFR
CONDITIONS WILL OCCUR OVER THE REGIONAL AERODROMES DURING THE NEXT
24 HOURS.
&&

.PRELIMINARY POINT TEMPS/POPS...
BAYVIEW/PORT ISABEL  76  64  77  65 /  60  70  70  50
BROWNSVILLE          78  65  80  68 /  60  70  70  50
HARLINGEN            77  64  81  65 /  60  70  70  50
MCALLEN              78  66  81  67 /  60  70  60  40
RIO GRANDE CITY      76  63  81  66 /  60  70  60  40
SOUTH PADRE ISLAND   74  64  75  66 /  60  70  70  50
&&

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

SYNOPTIC/GRIDS...TOMASELLI/66
MARINE/AVIATION...MARTIN/63
HMT/MESO...VEGA

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1120 AM CDT MON MAR 12 2007

TXZ248>257-131100-
ZAPATA-JIM HOGG-BROOKS-KENEDY-STARR-HIDALGO-INLAND WILLACY-
INLAND CAMERON-COASTAL WILLACY-COASTAL CAMERON-
1120 AM CDT MON MAR 12 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR DEEP SOUTH TEXAS.

.DAY ONE...THIS AFTERNOON AND TONIGHT

AN UPPER LEVEL LOW PRESSURE SYSTEM OVER SOUTHWEST TEXAS WILL PRODUCE
SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS OVER PORTIONS OF DEEP
SOUTH TEXAS INCLUDING THE ADJACENT COASTAL WATERS. SOME STORMS
WILL PRODUCE GUSTY WINDS...LOCALLY HEAVY RAINFALL...SMALL HAIL AND
POSSIBLY WATER SPOUTS.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS WITH LOCALLY HEAVY
RAINFALL AND GUSTY WINDS WILL CONTINUE THROUGH WEDNESDAY EVENING
AS THE UPPER LOW SLOWLY MOVES EAST. MODERATE TO STRONG NORTH WINDS
IN THE WAKE OF A FRONT EARLY FRIDAY WILL BUILD SEAS WITH SMALL
CRAFT ADVISORIES POSSIBLE THROUGH SATURDAY..

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1045 AM CDT MON MAR 12 2007

TXZ254>257-121700-
INLAND WILLACY-INLAND CAMERON-COASTAL WILLACY-COASTAL CAMERON-
INCLUDING THE CITIES OF...RAYMONDVILLE...BROWNSVILLE...
HARLINGEN...PORT MANSFIELD...PORT ISABEL...SOUTH PADRE ISLAND...
LAGUNA HEIGHTS...LAGUNA VISTA
1045 AM CDT MON MAR 12 2007

...STRONG THUNDERSTORMS AFFECTING CAMERON AND WILLACY COUNTY...

AT 1045 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS
TRACKING A CLUSTER OF STRONG THUNDERSTORMS OVER NORTHEAST CAMERON
COUNTY...SOUTHEAST WILLACY COUNTY...AND THE ADJACENT WATERS OF THE
LAGUNA MADRE. THESE THUNDERSTORMS ARE MOVING NORTH-NORTHEAST AT
AROUND 23 MILES PER HOUR...AND RECENTLY PRODUCED PEA-SIZED HAIL
AND WIND GUSTS OF AROUND 45 MILES PER HOUR IN THE VICINITY OF
ARROYO CITY.

SHOWERS AND THUNDERSTORMS...SOME POSSIBLY STRONG...WILL CONTINUE
TO DEVELOP OVER CAMERON AND WILLACY COUNTY THROUGH THE LATE MORNING
AND EARLY AFTERNOON HOURS.

TOMASELLI