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Tropical Discussion
 
(Caution: Version displayed is not the latest version. - Issued 1200Z Feb 15, 2018)
 
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TROPICAL DISCUSSION - INTERNATIONAL DESKS
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
700 AM EST THU FEB 15 2018

PRELIMINARY DISCUSSION FOR PUERTO RICO AND THE USVI FROM FEB 14/06
UTC: NO SIGNIFICANT CHANGES IN THE FORECAST. A LARGE UPPER TROUGH
OVER THE ATLANTIC CONTINUES EXTENDING ITS AXIS INTO THE FRENCH
ANTILLES. TO THE NORTHWEST...A MID-LEVEL RIDGE CONTINUES BUILDING
FROM THE GULF OF MEXICO EAST ALONG 23-28N. THE SUBSIDENCE CAP
CONTINUES STRENGTHENING OVER THE ISLANDS. THE TRADE WINDS HAVE
DECREASED IN SPEED AND NOW THEY RANGE BETWEEN 15 AND 25KT FROM THE
EAST NORTHEAST.

UNDER THE PERSISTENCE OF THE SUBSIDENCE CAP AND UPPER CONVERGENT
PATTERN...PRECIPITATION WILL CONTINUE ORGANIZING IN WEAK
PERTURBATIONS PROPAGATING IN THE TRADES. UNDER THE AN 15-25KT
EAST-NORTHEASTERLY TRADE WIND PATTERN...LARGEST ACCUMULATIONS WILL
CONTINUE OCCURRING IN EASTERN AND NORTHERN PUERTO RICO PEAKING IN
EARLY MORNING HOURS...AND IN INTERIOR PORTIONS OF NORTHERN AND
EASTERN PUERTO RICO DURING THE MORNING. MAXIMA WILL CONTINUE BEING
UNDER 0.5 INCHES/DAY...WITH EXCEPTION OF THE YUNQUE MOUNTAIN RANGE.

GORDON...NMS (BELIZE)
NIXON...BDM (THE BAHAMAS)
GALVEZ...WPC (USA)