Area Forecast Discussion
Issued by NWS Brownsville, TX

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FXUS64 KBRO 010841
AFDBRO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BROWNSVILLE TX
341 AM CDT SAT AUG 1 2015

.SHORT TERM  /TODAY THROUGH SUNDAY/...WEAK 500MB LOW/INVERTED TROUGH
ACROSS THE WESTERN GULF OF MEXICO THIS MORNING WILL CONTINUE TO
PROVIDE LOW TO MID LEVEL MOISTURE ACROSS NORTHEAST MEXICO INTO THE
WESTERN GULF TODAY. THIS WILL PROVIDE A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS ACROSS THE COASTAL SECTIONS OF THE CWA THIS AFTERNOON.
THE WEAK UPPER LEVEL FEATURE IS EXPECTED TO MOVE WESTWARD ACROSS
NORTHEAST MEXICO TONIGHT INTO SUNDAY AND THIS WILL PROVIDE A BETTER
CHANCE OF SHOWERS AND THUNDERSTORMS ACROSS THE LOWER PORTIONS OF THE
RIO GRANDE VALLEY ON SUNDAY.


.LONG TERM /SUNDAY NIGHT THROUGH FRIDAY/...AFTER A BRIEF
RESPITE...SUMMER HEAT WILL QUICKLY RETURN FOR THE UPCOMING WEEK.
H5 RIDGE BUILDS BACK ACROSS TEXAS AS THE WEAK INVERTED TROUGH
TREKS WESTWARD ACROSS MEXICO AND LARGE-SCALE TROUGH REMAINS IN
PLACE ACROSS THE NE US. DEEPEST MOISTURE WILL BE DECREASING
QUICKLY SUNDAY NIGHT INTO MONDAY...WHICH WILL PUT AN END TO THE
PRECIP CHANCES. PW VALUES HOVERING AROUND 1.5 INCHES THROUGH THE
ENTIRE UPCOMING WEEK...KEEPING SKIES MOSTLY CLEAR OR BETTER.
TEMPERATURES WILL BEGIN TO SOAR AGAIN INTO THE UPPER 90S TO 105
OUT WEST EACH AFTERNOON...WITH HEAT INDEX VALUES INCREASING DAILY
FROM 105 TO 110 DURING PEAK HEATING OF THE DAY.


&&

.MARINE...
TODAY THROUGH SUNDAY...SEAS WERE NEAR 1 FOOT WITH SOUTH
WINDS NEAR 6 KNOTS AT BUOY020 EARLY THIS MORNING. LIGHT AND VARIABLE
WINDS WILL PREVAIL ACROSS THE COASTAL WATERS TODAY AS A WEAK
STATIONARY FRONTAL BOUNDARY ACROSS THE NORTHERN GULF OF MEXICO
PROVIDES A WEAK PRESSURE GRADIENT ACROSS THE WESTERN GULF THIS
AFTERNOON. THE PRESSURE GRADIENT WILL REMAIN WEAK ACROSS THE LOWER
TEXAS COAST TONIGHT INTO SUNDAY. LIGHT AND VARIABLE WINDS WILL
CONTINUE ACROSS THE COASTAL WATERS AS A RESULT. WINDS AND SEAS WILL
BE HIGHER IN AND NEAR THUNDERSTORMS ASSOCIATED WITH THE WEAK 500MB
LOW/INVERTED TROUGH ACROSS THE WESTERN GULF.


SUNDAY NIGHT THROUGH WEDNESDAY...EARLY WEEK MARINE CONDITIONS WILL
CONTINUE TO BE MOSTLY TRANQUIL...AS SOUTHEAST WINDS REMAIN AROUND
10 KNOTS AND SEAS CONTINUE AT 2 FEET OR LESS.

&&

.PRELIMINARY POINT TEMPS/POPS...
BAYVIEW/PORT ISABEL  92  77  92  79 /  20  10  20  10
BROWNSVILLE          94  76  94  78 /  20  10  20  10
HARLINGEN            97  75  95  77 /  20  10  40  10
MCALLEN             100  76  98  79 /  20  10  30  10
RIO GRANDE CITY     101  75 101  78 /  20  10  20  10
SOUTH PADRE ISLAND   88  78  88  80 /  20  10  20  10

&&

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

$$

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