Prognostic Meteorological Discussion
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FXCA20 KWBC 221308
PMDCA

TROPICAL DISCUSSION - INTERNATIONAL DESKS
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
808 AM EST WED FEB 22 2017

PRELIMINARY DISCUSSION FOR PUERTO RICO AND THE USVI FROM FEB
22/06UTC: COLD ADVECTIVE PATTERN CONTINUES OVER THE ISLANDS UNDER
THE TRANSIENT NORTHERLY WIND REGIME ESTABLISHED AFTER THE PASSAGE
OF A STRONG UPPER TROUGH. AS THE UPPER TROUGH MOVES AWAY...WINDS
ARE BECOMING NORTH EASTERLIES AND ARE FORECAST TO RETURN TO
EASTERLIES DURING THE DAY ON WEDNESDAY. AFTER THIS
PERIOD...SOUTHEASTERLY TRADES ARE TO PERSIST OVER SEVERAL DAYS.
THIS WILL LEAD TO FAIR AND WARM WEATHER CONDITIONS ACROSS NORTHERN
PUERTO RICO INTO THE WEEKEND. MODELS ARE SHOWING SCATTERED RAIN
SHOWERS ON WEDNESDAY TO PRODUCE LIGHT RAINFALL...ESPECIALLY ALONG
THE CORDILLERA. ACTIVITY IS TO GRADUALLY DECREASE AS THE FOCUS FOR
CONVECTION ESTABLISHES TO THE NORTHWEST ACROSS THE BAHAMAS...IN
ASSOCIATION WITH A STRONG UPPER TROUGH THAT WILL TRAIL ACROSS
FLORIDA INTO THE NORTH ATLANTIC THROUGH THE WEEKEND.

JIMENEZ...IMN (COSTA RICA)
SUBRATH-ALI...TTMS (TRINIDAD AND TOBAGO)
GALVEZ...WPC (USA)

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