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FXCA20 KWBC 261236
PMDCA
TROPICAL DISCUSSION - INTERNATIONAL DESKS
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
736 AM EST THU JAN 26 2023
PRELIMINARY DISCUSSION FOR PUERTO RICO AND THE USVI FROM JAN
26/12UTC: A MID-LEVEL RIDGE STILL CENTERED NORTH OF
HISPANIOLA...WILL CONTINUE TO DOMINATE THE LOCAL AREA FOR THE NEXT
SEVERAL DAYS. THIS MID-LEVEL RIDGE WILL BE ASSOCIATED WITH A TRADE
WIND CAP...KEEPING SHALLOW CONVECTION OVER THE LOCAL AREA. THE
WIND DIRECTION WILL BE GENERALLY FROM THE EAST NORTHEAST TO
NORTHEAST FOR THE NEXT SEVERAL DAYS...BUT SEA BREEZE VARIATIONS
WILL BE OBSERVED ACROSS THE SOUTH AND WESTERN PORTIONS OF PUERTO
RICO IN THE LATE MORNING AND AFTERNOON HOURS EACH DAY. THE GENERAL
SHOWER ACTIVITY PATTERN FOR THE NEXT SEVERAL DAYS WILL BE TYPICAL
FOR THE TIME OF THE YEAR...WITH SCATTERED AND GENERALLY BRIEF
SHOWERS AFFECTING THE NORTH AND EASTERN SECTIONS OF PUERTO RICO AS
WELL AS THE USVI AND OUTLYING ISLANDS DURING THE EVENING AND
MORNING HOURS...AS THEY MOVE FROM THE NORTHEAST AT AROUND 20KT.
THE AVAILABLE MOISTURE WILL BE NEAR OR BELOW NORMAL IN PATCHES.
HOWEVER...A SHEARLINE WILL MOVE IN FROM THE NORTH
NORTHEAST...CAUSING AN INCREASE IN MOISTURE TO THE LOCAL ISLANDS
LATE TONIGHT INTO FRIDAY MORNING...WITH DRIER AIR AND A FEW
PATCHES OF MOISTURE MOVING IN BEHIND IT.
THE MID-LEVEL RIDGE...WHICH WILL BE THE DOMINANT FEATURE FOR THE
NEXT SEVERAL DAYS...CONTINUES TO BE FORECAST TO MEANDER SLOWLY TO
THE WEST...BUT WILL KEEP A TRADE WIND CAP THROUGH THE WEEKEND.
SOME WEAKENING OF THE TRADE WIND CAP COULD OCCUR EARLY NEXT WEEK
WITH THE RIDGE BEING CENTERED FURTHER WEST...BUT DEEP CONVECTION
IS STILL NOT EXPECTED EARLY NEXT WEEK. RAINFALL ACCUMULATIONS WILL
BE LIMITED...GENERALLY ABOUT A 0.25 INCHES OR LESS EACH DAY...BUT
NORMAL FOR THE TIME OF YEAR...DUE TO THE RAPID PASSAGE OF THE
SHOWERS AND LIMITED AMOUNTS OF MOISTURE.
ALAMO/ACOSTA/GALVEZ...WPC (USA)
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