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FXCA62 TJSJ 030703
AFDSJU
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
ISSUED BY NATIONAL WEATHER SERVICE MELBOURNE FL
303 AM AST TUE JUN 3 2025
KEY MESSAGES
* SAHARAN DUST WILL GRADUALLY DECREASE TODAY, WHILE TEMPERATURES
REMAIN SEASONABLY WARM.
* EVEN WITH MOSTLY STABLE CONDITIONS, SHOWERS AND THUNDERSTORMS ARE
STILL EXPECTED ACROSS WESTERN PUERTO RICO IN THE AFTERNOON.
* BREEZY CONDITIONS AND CHOPPY SEAS ARE EXPECTED THROUGH MUCH OF
THE WEEK AND IN THE WEEKEND.
DISCUSSION...TODAY (TUESDAY) THROUGH NEXT TUESDAY
IT WAS A MOSTLY CLEAR, BUT HAZY NIGHT ACROSS THE ISLANDS. RAINFALL
ACTIVITY WAS VERY LIMITED, WITH ONLY A FEW SHOWERS OVER THE WATERS.
TEMPERATURES WERE WARMER THAN NORMAL, COOLING DOWN TO THE MID AND
UPPER 70S IN COASTAL AREAS, AND NEAR 70S IN THE MOUNTAIN. THE GOOD
NEWS FOR TODAY ARE THE DENSE SAHARAN AIR LAYER WILL GRADUALLY
DECREASE EARLY TODAY, WITH VERY LOW CONCENTRATIONS LINGERING.
A SURFACE HIGH PRESSURE WILL MAINTAIN THE WINDS OUT OF THE EAST OR
SLIGHTLY NORTHEAST, AND A LITTLE STRONG TOO, AT 15 TO 25 MPH, AND
STRONGER GUSTS. EVEN THOUGH CONDITIONS ALOFT ARE UNFAVORABLE FOR
STRONG CONVECTION DUE TO THE DOMINANCE OF A HIGH PRESSURE SYSTEM,
WEAK PERTURBATIONS AT 700 MB WILL CONTRIBUTE IN THE DEVELOPMENT
OF AFTERNOON SHOWERS ACROSS THE INTERIOR AND WESTERN PUERTO RICO
EACH AFTERNOON. ADDITIONAL QUICK SHOWERS MAY IMPACT THE VIRGIN
ISLANDS AND EASTERN PUERTO RICO TOO, BUT THE RISK OF FLOODING IS
VERY LIMITED.
FOR A CHANGE, TEMPERATURES ARE EXPECTED TO BE A LITTLE LOWER THAN IN
PREVIOUS DAYS FOR SOME AREAS,BUT IT WILL BE HOT REGARDLESS, AS IS
EXPECTED FOR EARLY JUNE. HIGHS WILL REACH THE MID AND UPPER 80S, AND
LOW 90S IN SOME COASTAL AREAS. THE HOTTEST TEMPERATURES ARE EXPECTED
ACROSS SOUTHERN PUERTO RICO, FROM CABO ROJO TO PONCE.
THIS PATTERN WILL STRETCH INTO THE WEEKEND AND EARLY NEXT WEEK,
STILL WITH MOISTURE BELOW NORMAL, A LITTLE BIT OF SAHARAN DUST, AND
PASSING SHOWERS MOVING OVER EASTERN PR/USVI AT TIMES, AND
AND STRONGER CONVECTION FOR WESTERN PR EACH DAY.
AVIATION
(06Z) VFR CONDITIONS EXPECTED TO PREVAIL THROUGH THE FORECAST
PERIOD. VIS WILL IMPROVE AROUND 13Z AS HZ FROM SAHARAN DUST DEPARTS.
WINDS WILL BE FROM THE E AT 16-21 KTS, WITH STRONGER GUSTS AND SEA
BREEZES VARIATIONS.
MARINE
A SURFACE HIGH PRESSURE OVER THE ATLANTIC BASIN WILL CONTINUE TO
PROMOTE MODERATE TO LOCALLY FRESH TRADE WINDS OVER THE NEXT FEW DAYS.
HAZY SKIES WILL CONTINUE THIS MORNING, BUT VISIBILITIES WILL
GRADUALLY IMPROVE TODAY. SHOWERS ARE EXPECTED EACH AFTERNOON ALONG
THE WESTERN COAST OF PUERTO RICO.
BEACH FORECAST
BREEZY CONDITIONS WILL CONTINUE TO RESULT IN MODERATE RIP CURRENT
RISK ACROSS PORTIONS OF NORTHERN AND SOUTHERN PR AND THE USVI TODAY.
THE RISK WILL THEN SPREAD TOWARD EASTERN AND NORTHERN PR FOR THE
REST OF THE WORKWEEK.
SJU WATCHES/WARNINGS/ADVISORIES
PR...NONE.
VI...NONE.
AM...NONE.
FORECAST AND DISCUSSION...ERG
AVIATION AND STORY OF THE DAY...LIS
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