384
FXCA20 KWBC 071226
PMDCA
TROPICAL DISCUSSION - INTERNATIONAL DESKS
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
825 AM EDT WED JUN 07 2023
PRELIMINARY DISCUSSION FOR PUERTO RICO AND THE USVI FROM JUN
07/12UTC: BELOW NORMAL MOISTURE AND SOME SAHARAN DUST IS EXPECTED
TO CONTINUE OVER THE AREA FOR THE REST OF THE WORKWEEK...WHICH
WILL WORK IN LIMITING THE SHOWER ACTIVITY OVER THE AREA.
HOWEVER...THERE ARE OTHER FACTORS THAT WILL INHIBIT SIGNIFICANT
SHOWER ACTIVITY OVER THE NEXT FEW DAYS. PRECIPITABLE WATER VALUES
WILL STILL HOVER AROUND 1.4 TO 1.6 INCHES UNTIL LATE THURSDAY OR
VERY EARLY FRIDAY...THEN INCREASE TO NEAR NORMAL LEVELS AROUND 1.7
INCHES ON FRIDAY AND SATURDAY...BUT WILL DECREASE TO BELOW NORMAL
ONCE AGAIN ON SATURDAY EVENING ONWARD. THERE IS A TROPICAL WAVE
THAT WILL MOVE OVER THE CARIBBEAN ON FRIDAY...BUT THE POTENTIAL
MOISTURE OR SHOWER ACTIVITY INCREASE ASSOCIATED WITH THE WAVE WILL
BE WELL TO THE SOUTH OF PR/USVI...AND THEREFORE NO SIGNIFICANT
IMPACT IS EXPECTED.
A SURFACE HIGH PRESSURE IN THE CENTRAL TROPICAL ATLANTIC AND A
SURFACE LOW ACROSS THE NORTHWESTERN ATLANTIC...WILL KEEP A
SOUTHEASTERLY WIND FLOW OVER PR/USVI THROUGH FRIDAY. THEN
GRADUALLY THE WINDS ARE EXPECTED TO SHIFT TO A ESE DIRECTION ON
SATURDAY...THEN EASTERLY FROM SUNDAY ONWARD. AN UPPER LEVEL HIGH
PRESSURE WILL PREVAIL OVER THE LOCAL AREA FOR THE NEXT SEVERAL
DAYS. A HIGH PRESSURE IS ALSO PRESENT IN THE MID-LEVELS. A TRADE
WIND INVERSION AT AROUND THE 850MB LEVEL IS FORECAST OVER THE
NORTHEAST CARIBBEAN FOR THE NEXT SEVERAL DAYS. ALL OF THIS WILL
LIMIT SHOWER ACTIVITY...ESPECIALLY LIMIT ANY DEEP CONVECTION. IF
THERE IS ANY AFTERNOON CONVECTION...IT WOULD BE SHALLOW.
OVERALL...A RELATIVELY DRY WEATHER PATTERN CONTINUES TO BE
EXPECTED FOR THE NEXT SEVERAL DAYS. A FEW BRIEF SHOWERS ARE
POSSIBLE IN THE EARLY MORNING AND NIGHTTIME HOURS ACROSS THE USVI
AND EASTERN PR. THE 5-DAY RAINFALL TOTALS ARE FORECAST TO BE
AROUND 1 - 1.25 INCHES OF RAIN ACROSS SOUTHEASTERN PUERTO
RICO...AROUND AN INCH OVER NORTHWESTERN PUERTO RICO...AND BETWEEN
0.10 AND 0.40 INCHES FOR THE USVI.
ALAMO/ACOSTA...WPC (USA)
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page