Area Forecast Discussion
Issued by NWS Brownsville, TX

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000
FXUS64 KBRO 260921
AFDBRO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BROWNSVILLE TX
421 AM CDT SUN JUL 26 2015

.SHORT TERM /NOW THROUGH MONDAY/...THE DOMINANT 500 MB RIDGE
CENTERED OVER NORTH TEXAS INTO OKLAHOMA WITH BROAD SURFACE HIGH
PRESSURE ACROSS THE NORTHERN GULF OF MEXICO WILL MAINTAIN HOT AND
DRY CONDITIONS ACROSS DEEP SOUTH TEXAS THROUGH THE FORECAST
PERIOD. HIGH TEMPERATURES TODAY AND MONDAY WILL BE IN THE UPPER
90S TO LOWER 100S ACROSS MUCH OF AREA...EXCEPT FOR THE LOW TO MID
90S ALONG THE COAST...UNDER MOSTLY SUNNY SKIES. HEAT INDEX VALUES
ONCE AGAIN WILL RANGE FROM 105 TO 110 DEGREES FROM LATE THIS
MORNING THROUGH THE AFTERNOON HOURS. LOWS TEMPERATURES TONIGHT
WILL RANGE FROM THE MID 70S ACROSS THE NORTHERN RANCHLANDS TO THE
UPPER 70S TO LOWER 80S ACROSS THE VALLEY AND ALONG THE COAST.

.LONG TERM /MONDAY NIGHT THROUGH SATURDAY/...A SLIGHT CHANCE OF
PRECIPITATION ACTUALLY EXISTS FOR A FRACTION OF THE LONG TERM
FORECAST PERIOD. AN INVERTED 500 MB TROUGH MOVING WEST ACROSS THE
BAY OF CAMPECHE AND UNDER THE SOUTHERN PERIPHERY OF A 500 MB HIGH
CENTERED OVER MISSOURI WILL HAVE THE ABILITY TO PRODUCE ISOLATED
SHOWERS FOR THE ADJACENT COASTAL WATERS OF DEEP SOUTH TEXAS AND/OR
THE THREE IMMEDIATE COASTAL COUNTIES FROM MONDAY NIGHT THROUGH
TUESDAY NIGHT. AFTERWARDS...THE MOVEMENT OF THE INVERTED TROUGH
INTO MEXICO AND THE RE-CENTERING OF THE HIGH OVER THE FOUR CORNERS
AREA AND INTENSIFICATION OF THE HIGH OVER THE BRO CWFA WILL RESUME
DRY WEATHER FOR DEEP SOUTH TEXAS AND THE RIO GRANDE VALLEY FOR
WEDNESDAY THROUGH EARLY IN THE WEEKEND. WELL ABOVE NORMAL DAYTIME
HIGH AND OVERNIGHT LOW TEMPERATURES ARE EXPECTED THROUGH THE
ENTIRE FORECAST PERIOD.
&&

.MARINE...NOW THROUGH MONDAY...BUOY 42020 REPORTED SOUTH-SOUTHEAST
WINDS AROUND 14 KNOTS GUSTING TO AROUND 18 KNOTS WITH SEAS OF 3
FEET WITH A PERIOD OF 6 SECONDS AT 03 CDT/08 UTC. HIGH PRESSURE
OVER THE GULF OF MEXICO WILL MAINTAIN LIGHT TO MODERATE SOUTH TO
SOUTHEAST WINDS AND LOW TO MODERATE SEAS THROUGH MONDAY. SMALL
CRAFT WILL NEED TO EXERCISE CAUTION ON THE LAGUNA MADRE TODAY AND
MONDAY DUE SLIGHTLY STRONGER WINDS. NO SMALL CRAFT ADVISORIES
LIKELY TO BE NEEDED THROUGH THE PERIOD.

MONDAY NIGHT THROUGH SATURDAY...LIGHT TO MODERATE WINDS AND LOW TO
MODERATE SEAS ARE EXPECTED ALONG THE LOWER TEXAS COAST DURING THE
LONG TERM PORTION OF THE FORECAST AS SURFACE HIGH PRESSURE BECOMES
CENTERED OVER THE NORTHWEST GULF OF MEXICO. SMALL CRAFT MAY NEED
TO EXERCISE CAUTION ON THE LAGUNA MADRE ON TUESDAY...WITH NO SMALL
CRAFT ADVISORIES NEEDED FOR ANY PORTION OF THE LOWER TEXAS COASTAL
WATERS THROUGH THE FORECAST PERIOD.
&&

.PRELIMINARY POINT TEMPS/POPS...
BAYVIEW/PORT ISABEL  95  80  94  80 /   0   0  10   0
BROWNSVILLE          96  79  95  80 /   0   0  10   0
HARLINGEN           100  77  99  79 /   0   0  10   0
MCALLEN             103  80 101  80 /   0   0  10   0
RIO GRANDE CITY     105  77 103  79 /   0   0   0   0
SOUTH PADRE ISLAND   87  81  87  81 /   0   0  10  20
&&

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

$$

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

SHORT TERM...CACERES-63
LONG TERM...TOMASELLI-66
WX4PPT/MESO...BIRCHFIELD-65



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