Regional Weather Summary
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AWCA82 TJSJ 230831

Weather Summary for Puerto Rico
National Weather Service San Juan PR
431 AM AST Sun Jul 23 2017

Partly cloudy skies prevailed across the local islands during the
overnight hours. A few passing showers moved inland early in the
evening with no significant rain accumulations observed. Although
the activity decreased significantly around midnight, showers
started to develop once again and moved over portions of the
eastern half of PR after 2 AM AST. Overnight low temperatures were
in the upper 70s to low 80s across the lower elevations to the
upper 60s to mid 70s across the higher elevations under an east
to southeast wind flow at 10 mph or less.

As the tropical wave continues to move farther away, a drier mass will
encompass the forecast area resulting in an improvement of the
local weather conditions today into Monday morning. However,
lingering low-level moisture combined with the local and diurnal
effects will result in the development of showers and
thunderstorms across the interior and western PR, and possibly
over the San Juan metropolitan area within the San Juan streamer
this afternoon. Urban and small stream flooding may occur with the
strongest activity. Afternoon high temperatures will range between
the upper 80s to low 90s with heat indices possibly reaching the
102 to 107 degrees along coastal areas of southern, western, and
northern PR. Drier and hazy conditions are expected on Monday and
Tuesday as the drier mass accompanied by Saharan Dust continues to
filter into the forecast area.

Across the regional waters...seas up to 5 feet and easterly winds
up to 15 knots are expected for the next several days. A moderate
risk of rip currents continues across the north and southeast
coast of Puerto Rico and Vieques.


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.