864  
FXCA20 KWBC 161215  
PMDCA  
 
TROPICAL DISCUSSION - INTERNATIONAL DESKS  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
715 AM EST FRI FEB 16 2024  
 
PRELIMINARY DISCUSSION FOR PUERTO RICO AND THE USVI FEB 16/12UTC:  
THE LATEST GUIDANCE HAS ADJUSTED AND IT IS SUGGESTING A CHANCE OF  
AFTERNOON CONVECTION ACROSS THE NORTHWESTERN QUADRANT OF PR...FROM  
AROUND CIALES...WEST TO AGUADA...WITH ISOLATED AREAS THAT COULD  
REACH AN INCH OF RAIN. A SMALL AREA OVER NORTHEASTERN PR IN AND  
AROUND RIO GRANDE IS ALSO SUGGESTED AS A POSSIBLE AREA OF HIGHER  
RAINFALL TODAY WITH TOTALS JUST OVER A QUARTER OF AN INCH. MINIMAL  
RAINFALL IF ANY IS FORECAST ELSEWHERE IN PR AND THE USVI. THROUGH  
THE REST OF THE FORECAST PERIOD...AT LEAST SOME RAIN IS FORECAST  
EACH DAY ACROSS EASTERN PR...THOUGH SUNDAY LOOKS TO BE VERY DRY  
AND IT IS EXPECTED TO HAVE LITTLE TO NO ACCUMULATIONS OVER THE  
LOCAL AREA. HOWEVER...THE SHOWER ACTIVITY MAY GRADUALLY INCREASE  
EARLY IN THE WORKWEEK WITH THE MORE SIGNIFICANT RAINFALL FAVORING  
EASTERN PR ONCE AGAIN...THOUGH SOME RAIN IS ALSO FORECAST FOR THE  
USVI.  
 
AT THE SFC...A SFC HIGH ACROSS THE WESTERN TROPICAL ATLANTIC WILL  
MOVE EAST INTO THE CENTRAL ATLANTIC TODAY. A SFC LOW WILL EXIT THE  
MID-ATLANTIC STATES INTO THE WESTERN ATLANTIC...WILL HAVE A COLD  
FRONT ACROSS THE WESTERN ATLANTIC COAST AND A PRE-FRONTAL TROUGH  
JUST AHEAD OF IT...WHICH WILL GRADUALLY CAUSE THE LOCAL WINDS TO  
SHIFT TO A MORE SOUTHEASTERLY DIRECTION. THE MID AND UPPER LEVELS  
WILL BE DOMINATED BY HIGH PRESSURE SYSTEMS THROUGH THE  
WEEKEND...BUT A MID TO UPPER LEVEL TROUGH COULD APPROACH THE  
WESTERN CARIBBEAN BY TUESDAY. A TRADE WIND INVERSION WILL  
GRADUALLY DEVELOP AND STRENGTHEN INTO THE WEEKEND...POSSIBLY  
ERODING BY TUESDAY.  
 
THE 5-DAY TOTAL RAINFALL FORECAST SUGGESTS THAT EASTERN PR AS WELL  
AS VIEQUES AND CULEBRA COULD OBSERVE AROUND 0.50 TO 1 INCH...WITH  
THE LUQUILLO MOUNTAIN RANGE ON THE HIGHER END OF THAT RANGE.  
PORTIONS OF THE NORTHWESTERN QUADRANT OF PR COULD OBSERVE NEAR  
0.75 TO 1 INCH THOUGH ISOLATED AREAS COULD OBSERVE HIGHER AMOUNTS  
DEPENDING ON THE POSSIBLE CONVECTION THIS AFTERNOON. THE USVI  
COULD OBSERVE BETWEEN 0.25 AND 0.50 INCHES OVER THE NEXT 5 DAYS.  
 
ALAMO...WPC (USA)  
 
 
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