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FXCA20 KWBC 011234
PMDCA
TROPICAL DISCUSSION - INTERNATIONAL DESKS
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
833 AM EDT MON APR 01 2024
PRELIMINARY DISCUSSION FOR PUERTO RICO AND THE USVI APR 01/12UTC:
NEAR TO BELOW NORMAL MOISTURE IS EXPECTED THROUGH MOST OF THE
WORKWEEK...BUT IN AN INCREASING TREND ON THURSDAY AND THEN ABOVE
NORMAL FOR FRIDAY. THE RELATIVE HUMIDITY VALUES ACROSS THE LOW AND
MID LEVELS WILL ALSO BE NEAR TO BELOW NORMAL THROUGH
THURSDAY...THEN ABOVE NORMAL ON FRIDAY. THE DAY WITH THE LOWEST
MOISTURE IS EXPECTED TO BE WEDNESDAY...AND THE HIGHEST AVAILABLE
MOISTURE ON FRIDAY. HOWEVER...SOME RAINFALL IS EXPECTED EACH DAY
THIS WEEK.
A SFC HIGH PRESSURE ACROSS THE WESTERN TROPICAL ATLANTIC WILL
SLOWLY MOVE EAST THROUGH THE WEEK. THIS WILL KEEP THE DEEP
TROPICAL MOISTURE TO THE SOUTH OF THE LOCAL ISLANDS FOR MOST OF
THE WEEK...BUT AS THE HIGH PRESSURE MOVES INTO THE CENTRAL
ATLANTIC...THE LOCAL WINDS WILL HAVE A SOUTHEASTERLY COMPONENT AND
THE DEEPER MOISTURE FROM THE SOUTH WILL START TO MOVE IN. THERE IS
A MID-LEVEL TROUGH PASSING THROUGH THE LOCAL ISLANDS TODAY...THEN
NORTH WINDS WILL BE OBSERVED IN THE MID LEVELS ON TUESDAY...THEN A
BRIEF MID-LEVEL TROUGH WILL DEVELOP OVER THE ISLANDS ON
WEDNESDAY...MOVING EAST AND ALLOWING A MID-LEVEL HIGH PRESSURE TO
MOVE IN FOR THE LATTER PART OF THE WORKWEEK. THE ERE IS ANOTHER
TROUGH IN THE UPPER LEVELS...CURRENTLY WITH ITS AXIS OVER
HISPANIOLA. THIS TROUGH WILL MOVE EAST AND REMAIN OVER THE LOCAL
ISLANDS FROM TUESDAY INTO WEDNESDAY...WHILE AN UPPER-LEVEL RIDGE
MOVES EAST AND OVER THE LOCAL ISLANDS ALSO FOR THE LATTER PART OF
THE WORKWEEK.
THE 5-DAY RAINFALL TOTAL FORECAST SUGGESTS NEAR 1 INCH FOR NORTH
AND EASTERN PR...WITH MAX VALUES ON THE HIGHER END OF THE RANGE
NEAR THE LUQUILLO MOUNTAIN RANGE. NEAR 0.25 TO AROUND 0.50 INCHES
ARE FORECAST FOR THE USVI...AND UP TO 0.75 INCHES FOR VIEQUES AND
CULEBRA. BETWEEN 0.10 AND 0.30 INCHES ARE FORECAST FOR CENTRAL TO
WESTERN PR.
ALAMO...WPC (USA)
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