912
FXCA20 KWBC 131325
PMDCA
TROPICAL DISCUSSION - INTERNATIONAL DESKS
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
825 AM EST MON FEB 13 2023
PRELIMINARY DISCUSSION FOR PUERTO RICO AND THE USVI FROM FEB
13/12UTC: A SURFACE COLD FRONT ACROSS THE WESTERN ATLANTIC IS
MOVING EAST BUT WILL REMAIN NORTH OF THE ISLANDS...WITH AN ATTEMPT
OF A PREFRONTAL SHEARLINE THAT WILL BE AFFECTING PR AND THE
SURROUNDING ISLANDS TUESDAY. A MID-LEVEL TROUGH OVER THE ISLANDS
PASSES BY TUESDAY...BUT WILL MAINTAIN THE TRADE WIND CAP TO THE
SOUTH OF PUERTO RICO. A MID LEVEL HIGH PRESSURE SYSTEM CURRENTLY
OVER THE YUCATAN PENINSULA MOVES OVER THE CARIBBEAN BASIN ON
WEDNESDAY...CREATING AN INVERSION CAP OVER PUERTO RICO AND THE
VIRGIN ISLANDS. A SURFACE HIGH PRESSURE CURRENTLY IN THE GULF OF
MEXICO MOVES NORTHEAST INTO THE WEST ATLANTIC BY THURSDAY...WHERE
TRADE WINDS WILL SHIFT TO A NORTHEAST DIRECTION AND INCREASE WIND
SPEEDS TO 20-25 KT. TODAY...SHOWERS WILL BE AFFECTING THE EASTERN
PORTION OF PR AND POSSIBILITIES OF SHOWERS TO THE NORTHWEST IN THE
AFTERNOON. TOTAL PRECIPITATION IN THE EASTERN PORTION OF THE
ISLAND CAN REACH FROM 0.3-.35 INCHES. ON TUESDAY...AS THERE IS AN
ABSENCE OF A TRADE WIND CAP...PRECIPITATION TOTALS AND COVERAGE
WILL INCREASE AND THE WESTERN PORTION OF THE ISLAND CAN SEE
AMOUNTS OF 0.35-0.40 INCHES. WITH WINDS SHIFTING FROM THE
NORTHEAST ON WEDNESDAY...PRECIPITATION AMOUNTS OF 0.35-0.40 INCHES
ARE EXPECTED NORTHEAST PUERTO RICO. BY THURSDAY AND
FRIDAY...AMOUNTS WILL INCREASE IN SOUTHWEST PUERTO RICO DUE TO SEA
BREEZE CONVERGE POSSIBLY CAUSING AFTERNOON CONVECTION. AMOUNTS CAN
REACH TOTALS OF 0.40 INCHES FOR BOTH DAYS.
ACOSTA/ALAMO...WPC (USA)
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