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FXCA20 KWBC 211223
PMDCA
TROPICAL DISCUSSION - INTERNATIONAL DESKS
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
722 AM EST TUE FEB 21 2023
PRELIMINARY DISCUSSION FOR PUERTO RICO AND THE USVI FROM FEB
21/12UTC: TODAY...WINDS ARE COMING FROM THE NORTHEAST DIRECTION AT
ABOUT 10-20KT. PRECIPITABLE WATER AMOUNTS ARE STAYING BELOW 1 INCH
THROUGHOUT THE DAY. AT THE MID-LEVEL...A POTENT RIDGE IS EXTENDING
OVER THE CARIBBEAN BASIN AND A TRADE WIND CAP IS PRESENT AT AROUND
800-850HPA. TOTAL AMOUNTS OF PRECIPITATION ARE EXPECTED TO REMAIN
LOW...PRIMARILY IN THE NORTHEAST OF THE ISLAND OF PUERTO...WITH
AMOUNTS LESS THAN 0.2 INCHES.
FROM WEDNESDAY ONWARDS...THE MID-LEVEL RIDGE OVER THE CARIBBEAN
BASIN WILL CONTINUE TO DOMINATE WITH A TRADE WIND CAP OVER THE
ISLANDS. WINDS CONTINUE FROM THE GENERAL NORTHEAST DIRECTION UNTIL
EARLY SUNDAY...WHEN A LOW LEVEL HIGH PRESSURE SYSTEM CENTERED OVER
THE CENTRAL ATLANTIC...AND EXTENDING INTO THE NORTHERN CARIBBEAN
BASIN...BEGINS TO SHIFT THE TRADE WINDS INTO AN EASTERLY
DIRECTION. POCKETS OF MOISTURE MOVE INTO PUERTO RICO AND THE
VIRGIN ISLANDS FROM THE EAST ON THURSDAY AND INTO THE
WEEKEND...WITH A CHANCE OF ISOLATED AND SCATTERED SHOWERS ON EACH
DAY. THE DAYS WITH THE LARGEST AMOUNTS OF PRECIPITATION ARE
EXPECTED ON THURSDAY AND FRIDAY...WITH AMOUNTS UNDER 0.4
INCHES...PRIMARILY AFFECTING NORTHEAST PUERTO RICO BY SATURDAY
MORNING...THE 24-HOUR PRECIPITATION TOTALS ARE EXPECTED TO
DECREASE...WITH RAINFALL TOTALS PERHAPS UP TO 0.25 INCHES ACROSS
THE LUQUILLO MOUNTAIN RANGE...AND EVEN LESS RAINFALL EXPECTED BY
SUNDAY MORNING...UNDER 0.15 INCHES OF RAIN IN THE FORECAST.
ACOSTA/ALAMO...WPC (USA)
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