FXUS64 KBRO 260230
AFDBRO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BROWNSVILLE TX
830 PM CST FRI DEC 25 2009

.DISCUSSION...A STRONG WSW FLOW ALOFT CONTINUES TO ADVECT IN
PLENTY OF MID LEVEL CLD COVER OVER MUCH OF SOUTH TX. THIS
THICKENING CI/CS SHIELD WILL COMBINE WITH A RETURNING E-SE LOW
LEVEL FLOW TO LIMIT THE RADIATIONAL EFFECTS TONIGHT. DESPITE THE
INCREASING MID AND HIGH LEVEL CLDS EXPECT OVERNIGHT LOWS TO RANGE
FROM THE UPPER 30S ACROSS THE NORTHERN TIER OF COUNTIES TO THE
LOWER 40S ACROSS THE LOWER RGV. HAVE ADJUSTED THE OVERNIGHT LOWS
DOWN A BIT ACROSS THE SOUTHERNMOST SECTIONS OF THE BRO CWA. EXPECT
THE SURFACE COASTAL TROUGH TO STEADILY FORM NEAR THE LOWER TX
COASTLINE LATE TONIGHT INTO TOMORROW INCREASING THE SURFACE
CONVERGENCE AND POPS INTO TOMORROW. THIS IS PRETTY WELL REFLECTED
IN THE CURRENT FORECAST. OTHERWISE NO OTHER CHANGES NEEDED TO THE
CURRENT FORECAST WORDING.
&&

.AVIATION...CLOUD COVER REMAINS CONFINED TO CIRRUS SHIELD 
ALOFT...WITH CONTINUED OVC250 ALL LOCATIONS THROUGH 24 HOURS. CIGS 
BEGIN TO LOWER OVERNIGHT AND SHOULD LOWER TO 3KFT EARLY TOMORROW 
MORNING. CLOUD COVER IS FORECAST TO REMAIN LOW THROUGH THE DAY AND 
CONTINUING INTO EARLY NEXT WEEK. RAIN CHANCES WILL INCREASE JUST 
AFTER SUNRISE WITH LOWERED CIGS. WINDS WILL REMAIN NORTH TO 
NORTHEASTERLY THROUGH THE NEXT 24 HOURS.
&&

.MARINE...AT 7PM BUOY020 REPORTED EAST WINDS AT 6KTS AND SEAS 3 
FEET. ADVISORIES ARE COMPLETE AS CONDITIONS HAVE IMPROVED 
DRAMATICALLY DURING THE PAST 12 HOURS. COASTAL TROUGH WILL DEVELOP 
STARTING TOMORROW...BRINGING EASTERLY FLOW OFFSHORE AND NORTHEAST 
WINDS NEAR THE COAST. WINDS SHOULD REMAIN AROUND 15 KNOTS UNTIL THE 
TROUGH GAINS STRENGTH EARLY NEXT WEEK. ADVISORIES WILL BE PROBABLE 
STARTING LATE MONDAY THROUGH TUESDAY. SEAS WILL INCREASE TO 3 TO 5 
FEET TOMORROW AND 5 TO 8 FEET BY EARLY NEXT WEEK.
&&

.PRELIMINARY POINT TEMPS/POPS...
BAYVIEW/PORT ISABEL  48  61  52  66 /  20  60  10   0 
BROWNSVILLE          47  59  49  67 /  20  50  10   0 
HARLINGEN            46  59  49  66 /  20  50  10   0 
MCALLEN              46  59  48  66 /  20  50  10   0 
RIO GRANDE CITY      42  59  43  65 /   0  40  10   0 
SOUTH PADRE ISLAND   46  63  51  66 /  20  60  10   0 

&&

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

$$

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

SYNOPTIC/GRIDS...60
MARINE/AVIATION/MESO...64