109
FXCA20 KWBC 151227
PMDCA
TROPICAL DISCUSSION - INTERNATIONAL DESKS
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
726 AM EST WED FEB 15 2023
PRELIMINARY DISCUSSION FOR PUERTO RICO AND THE USVI FROM FEB
15/12UTC: TODAY...THE LOCAL WINDS ARE EXPECTED TO SHIFT TO A MORE
NORTHEASTERLY DIRECTION...AS ANOTHER SURFACE HIGH PRESSURE MOVES
INTO THE WESTERN ATLANTIC. WINDS ARE EXPECTED TO INCREASE TO
10-15KT. A WEAKENING FRONTAL BOUNDARY NORTH OF THE GREATER
ANTILLES...AND EAST OF THE BAHAMAS...WILL MOVE SOUTH AND
EAST...AND BRING PATCHES OF MOISTURE FOR LATER TODAY. ISOLATED AND
SCATTERED SHOWERS ARE EXPECTED TO AMOUNT TO 0.30 INCHES IN
NORTHEAST PR.
ON THURSDAY...ADDITIONAL EFFECTS OF THE FRONTAL BOUNDARY REMNANTS
ARE EXPECTED TO MAKE ITS WAY THROUGH THE ISLANDS. LOCAL WINDS WILL
INCREASE IN SPEED...TO AROUND 20KT. PRECIPITABLE WATER MAY
INCREASE TO ABOUT 1.4 INCHES AND AN INCREASE IN PRECIPITATION IN
THE NORTHEAST PORTION OF PUERTO RICO CAN BE OBSERVED. AREAS MAY
OBSERVE AMOUNTS OVER 0.75 INCHES OF RAINFALL...LOCALIZED AMOUNTS
OVER 1 INCH AROUND THE LUQUILLO MOUNTAIN RANGE CAN BE OBSERVED.
FROM FRIDAY ONWARD...WINDS SPEEDS WILL BE OBSERVED AT AROUND 20KT
FROM THE NORTHEASTERLY DIRECTION. A MID-LEVEL RIDGE CENTERED OVER
THE GULF OF MEXICO...AND EXTENDING OVER THE CARIBBEAN BASIN...WILL
BRING A TRADE WIND CAP AT AROUND 800-850HPA LEVEL FROM FRIDAY
THROUGH SUNDAY. A MORE TYPICAL PATTERN OF ISOLATED TO SCATTERED
SHOWERS IS EXPECTED TO BRING RAINFALL ACROSS NORTH AND EASTERN
PR...AND THE USVI...IN THE MORNING AND EVENING HOURS.
PRECIPITATION AMOUNTS OBSERVED MAY BE BELOW 0.25 INCHES.
ACOSTA/ALAMO...WPC (USA)
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