Regional Weather Summary
Issued by NWS
AWCA82 TJSJ 292143
Weather Summary for Puerto Rico
National Weather Service San Juan PR
543 PM AST FRI JUL 29 2016
An upper level low passed to the north of Puerto Rico this morning
bringing partly cloudy skies and scattered showers...mainly to the
west and central portions of the island north of the Cordillera
Central. The best rainfall amounts were in the northwest corner
of Puerto Rico followed by a stretch along the Cordillera Central
in Ponce and a streamer from El Yunque that passed over Dorado.
High temperatures reached the low to mid 90s in the lower
elevations and it was even 91 degrees at the Luis Munoz Marin
airport this afternoon. Temperatures likely reached the upper 70s
in the coolest higher elevations. Winds on the north coast were
easterly 15 to 20 mph with gusts as high as 28 mph. Winds
elsewhere were dominated by sea breezes and were generally 10 to
The atmosphere will slowly dry through Saturday afternoon as a
significant tropical wave advances toward the area from about 1200
miles east southeast of the area. Nevertheless, some
thunderstorms are again expected to form in western and
southwestern Puerto Rico during the afternoon with some heavy
rainfall in localized areas possible. The wave will begin to
spread moisture and increasing winds over the area Saturday night
with the mostly intense winds, rainfall and thunderstorms becoming
likely during the day on Sunday. Although it is still too early to
determine how much rain will fall in any given area during the
wave passage, a preliminary estimate is that at a minimum some
local urban and small stream flooding is expected-- mainly in
eastern Puerto Rico and winds could easily gust to over 30 mph.
Some showers may continue overnight Sunday and into Monday.
Another round of warm temperatures are expected on Saturday, but
for most areas of Puerto Rico temperatures will be moderated by
rain on Sunday. Lows tonight will range from the mid 60s in the
higher mountain valleys to around 80 on the windward coasts.
Across the regional waters tonight...seas up to 6 feet and east
winds up to 20 knots are expected. There is a moderate risk of
rip currents along most of Puerto Rico`s coasts. Winds and seas
will increase over the weekend and small craft advisories will go
into effect for some Atlantic and outer Caribbean waters Saturday
afternoon and night.
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.