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AWCA82 TJSJ 190938 RRA

Weather Summary for Puerto Rico
National Weather Service San Juan PR
408 AM AST Wed Sep 19 2018

Mostly clear skies prevailed across the Puerto Rico during the
overnight through the early morning hours. Satelite imagery shows
high clouds to the southwest and north of Puerto Rico and these
clouds are moving to the northeast, and could move into the area
later this morning. Overnight temperatures were in the high 70s near
coastal regions, and the upper 60s to lower 70s in higher
elevations. Winds were out of the east at 5 to 10 mph.

A weak tropical wave has moved into the Caribbean waters this
morning and will remain south of the islands chains, but moisture
could trigger showers across the eastern areas of Puerto Rico this
morning. Later today the low and mid level ridge will build into
the region, and will remain through the end of the workweek. The
ridges will suppress afternoon convection over Puerto Rico except
for western and interior areas were local and diurnal effects
will cause showers and thunderstorms. Today high temperatures are
forecast to reach the upper 80s to lower 90s near the coastal
areas, and the upper 70s to lower 80s in higher elevations.

A dry and more stable air mass with Saharan dust particulates will
filter in from the east later today with the Saharan dust peaking
Thursday into Friday. Therefore, expect hazy skies through the end
of the workweek.

Tranquil marine conditions will prevail with seas between 2 and 5
feet. Winds are forecast to increase at 15 to 20 knots mainly over
the Atlantic and Caribbean Offshore waters today through Thursday.


This product is issued around 5 AM and 5 PM each day and weather
conditions may change between issuances. Please verify the status
of any Watches...Warnings or Advisories mentioned in this product. is the U.S. government's official web portal to all federal, state and local government web resources and services.