FXUS64 KBRO 250230
AFDBRO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BROWNSVILLE TX
830 PM CST THU DEC 24 2009

.SHORT TERM...AS THE SURFACE WINDS DIMINISH ATTENTION NOW SHIFTS
TOWARDS THE POTENTIAL FOR RADIATIONAL COOLING TONIGHT. IR SATL
IMAGERY SHOWS ONLY SOME PATCHY CLD COVER MOVING OVER THE REGION
FROM THE WEST. DEWPOINTS AROUND THE AREA RANGE IN THE LOWER TO
MIDDLE 30S WITH TEMPS RANGING IN THE LOWER TO MIDDLE 50S WITH THE
SURFACE WINDS RANGING FROM 10 TO 15 KNOTS. ALTHOUGH THE SURFACE
WINDS WILL DIMINISH SOME THROUGHOUT THE NIGHT BELIEVE THAT THE
SURFACE WINDS WILL REMAIN STRONG ENOUGH TO LIMIT THE RADIATIONAL
EFFECTS. HOWEVER WILL LOWER TEMPS SOME AROUND THE BRO CWA AND WILL
KEEP THE COLDEST TEMPS ACROSS THE NORTHERNMOST COUNTIES WITH MID
30S EXPECTED AT BKS AND HBV. SOME ISOLATED MORNING LOWS MAY REACH
NEAR THE FREEZING MARK BRIEFLY TOMORROW MORNING ESPECIALLY IN LOW
LYING RURAL AREAS. HOWEVER AT THIS TIME WILL NOT POST ANY FREEZE
WARNING. NO MAJOR CHANGES NEEDED TO THE REST OF THE CURRENT
FORECAST WORDING. 
&&

.AVIATION...VFR CONDITIONS WILL CONTINUE THROUGH THE NEXT 24 HOURS. 
SKIES WILL REMAIN CLEAR INTO LATER TOMORROW AFTERNOON. CLOUDS WILL 
START DEVELOPING LATE AFTERNOON INTO THE EVENING AND WILL GRADUALLY 
LOWER THROUGH TOMORROW NIGHT. WINDS HAVE DECOUPLED WITH LOSS OF 
DAYTIME HEATING...SO SFC WINDS WILL BE LIGHTER THAN WINDS JUST OFF 
THE SFC THROUGH THE NIGHT. SPEED SHEAR WILL BE AN ISSUE. BRO RADAR 
NOTES 50KTS AT 2KFT AND 65KTS AND 4KFT. WINDS ARE FORECAST TO 
DECREASE THROUGH THE NIGHT...BUT SHEAR WILL REMAIN ABOVE 20KTS 
DIFFERENCE THROUGH THE NIGHT. WINDS WILL REMAIN AROUND 10KTS DURING 
THE DAY AGAIN TOMORROW.
&&

.MARINE...AT 7PM BUOY020 REPORTED WEST WINDS AT 27G33KTS AND SEAS 
10 FEET. THE GALE WARNING WILL CONTINUE THROUGH 9PM AS WINDS
GRADUALLY DECREASE FROM THEIR PEAK EARLIER THIS MORNING. WINDS
WILL REMAIN 20 TO 30 KNOTS FOR ALL WATERS INCLUDING THE LAGUNA
THROUGH AT LEAST TOMORROW MORNING. THE HIGH WINDS HAVE PUSHED SEAS
UP TO 14 FEET AT TIMES...BUT SHOULD ALSO GRADUALLY DECREASE
THROUGH THE NEXT SEVERAL DAYS. SMALL CRAFT ADVISORIES WILL START
ONCE THE GALE WARNINGS END...AND WILL CONTINUE THROUGH THE DAY
FRIDAY. SEAS WILL FALL BELOW 7 FEET BY LATER TOMORROW AFTERNOON.
WINDS WILL INCREASE SOME ON SUNDAY AS LOW PRESSURE DEVELOPS JUST
OFF THE COAST AND WILL CONTINUE THROUGH THE MIDDLE OF NEXT WEEK.
LIGHT RAIN AND DRIZZLE WILL DEVELOP BY SATURDAY NIGHT AND CONTINUE
THROUGH TUESDAY. ACCUMULATION WILL BE LIGHT. 
&&

.PRELIMINARY POINT TEMPS/POPS...
BAYVIEW/PORT ISABEL  41  62  47  60 /   0   0  10  30 
BROWNSVILLE          39  64  47  58 /   0   0  10  30 
HARLINGEN            36  64  45  56 /   0   0  10  30 
MCALLEN              41  64  45  56 /   0   0  10  30 
RIO GRANDE CITY      40  62  42  59 /   0   0  10  30 
SOUTH PADRE ISLAND   45  63  50  61 /   0   0  10  30 

&&

.BRO WATCHES/WARNINGS/ADVISORIES...SMALL CRAFT ADVISORY UNTIL 6
AM CST FRIDAY FOR GMZ130-132-135-150-155-170-175.

&&

$$

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

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