Special Weather Statement, NWS JSJ

Area Forecast Discussion
National Weather Service San Juan PR
452 AM AST Tue Mar 7 2017

.SYNOPSIS...Pre-frontal trough and frontal boundary will continue
to bring cloudiness and showery conditions to the forecast region
through at least Wednesday as the frontal boundary is expected to
sink southwards across the region while dissipating. This will
result in continued breezy to windy conditions with periods of
moderate to heavy rainfall from time to time. A very dry air mass
will encompass the region behind the front Wednesday night.

&&

.SHORT TERM...Moisture from the prefrontal trough is making its way
through the local area today and this moisture is expected to stay
with us through the rest of the day into tonight. That said, mostly
cloudy skies with scattered to numerous showers are expected across
the local area today, especially across the local waters, USVI, and
northern and eastern PR. These rain showers are not producing high
amounts of rain and most of the showers are not expected to cause
significant flooding, but the showers may be persistent. The
weakening front should be over the local islands by early Wednesday,
which will bring drier air and therefore the shower activity and the
cloudiness is expected to diminish.

The SFC high pressure to our north will keep the local pressure
gradient relatively tight, so the winds will continue to be breezy
today, likely in the 15-25 mph with occasional higher gusts across
the windward areas of PR and across the USVI, Vieques, and Culebra.

This cloudiness and rain should keep the daytime temperatures
relatively cool and the lower elevations of PR may observe daytime
max temps in the upper 70s to lower 80s while the higher elevations
should observe daytime temps in the upper 60s to low 70s. The USVI
should observe temps in the lower 80s.

.LONG TERM...Seasonable weather conditions are expected from
this Friday through next Wednesday. High pressure system is
expected to dominate the northeast Caribbean with only some
patches of low level moisture affecting the local area from time
to time. Otherwise, tranquil weather conditions are forecast to
occur.

&&

.AVIATION...Mostly VFR conds expected through the forecast period.
However there will be rain and clouds across the local flying area
which will cause CIGS at about FL040 and brief moments of MVFR conds
at different points during the day due to lower CIGS and possible
lower VIS due to SHRA. The local winds will remain relatively strong
from the ENE to NE at 15 to 25KT with occasional gusts.

&&

.MARINE...Latest buoy observations were showing seas up to 16 feet
with periods of 14 seconds at buoy 41043 located around 170 nm north
northeast of San Juan. In addition, buoy 41053 in San Juan was
showing seas near 13 feet at 10 seconds. As a result, decided to
issue a High Surf Warning and a Coastal Flood Warning for this
morning as dangerous surf conditions and minor coastal flooding
are expected through this afternoon. Model data has been underestimating
this event for almost 3 to 4 feet at buoy 41043. Refer to latest
CFWSJU product for latest information.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU  78  72  81  72 /  70  30  30  20
STT  82  72  82  72 /  60  30  30  30

&&

.SJU WATCHES/WARNINGS/ADVISORIES...
PR...Coastal Flood Warning from 8 AM this morning to 6 PM AST this
     evening for Culebra-Mayaguez and Vicinity-North Central-
     Northeast-Northwest-San Juan and Vicinity-Southeast-Western
     Interior.

     High Rip Current Risk through this afternoon for Central
     Interior-Culebra-Mayaguez and Vicinity-North Central-
     Northeast-Northwest-San Juan and Vicinity-Southeast-
     Southwest-Vieques-Western Interior.

     High Surf Advisory until 8 AM AST this morning for Culebra-
     Mayaguez and Vicinity-North Central-Northeast-Northwest-San
     Juan and Vicinity-Southeast-Western Interior.

     Coastal Flood Advisory until 8 AM AST this morning for Culebra-
     Mayaguez and Vicinity-North Central-Northeast-Northwest-San
     Juan and Vicinity-Southeast-Western Interior.

     High Surf Warning from 8 AM this morning to 6 PM AST this
     evening for Culebra-Mayaguez and Vicinity-North Central-
     Northeast-Northwest-San Juan and Vicinity-Southeast-Western
     Interior.

     Small Craft Advisory until 6 AM AST Thursday for Southeast.

     High Surf Advisory from 8 AM this morning to 6 PM AST this
     evening for Vieques.

     Coastal Flood Advisory until 6 PM AST this evening for Vieques.

VI...Coastal Flood Warning from 8 AM this morning to 6 PM AST this
     evening for St.Thomas...St. John...and Adjacent Islands.

     High Rip Current Risk through this afternoon for St Croix-
     St.Thomas...St. John...and Adjacent Islands.

     High Surf Advisory until 8 AM AST this morning for
     St.Thomas...St. John...and Adjacent Islands.

     Coastal Flood Advisory until 8 AM AST this morning for
     St.Thomas...St. John...and Adjacent Islands.

     High Surf Warning from 8 AM this morning to 6 PM AST this
     evening for St.Thomas...St. John...and Adjacent Islands.

     Small Craft Advisory until 6 AM AST Thursday for St.Thomas...St.
     John...and Adjacent Islands.

     High Surf Advisory from 8 AM this morning to 6 PM AST this
     evening for St Croix.

     Coastal Flood Advisory until 6 PM AST this evening for St Croix.

AM...Coastal Flood Warning from 8 AM this morning to 6 PM AST this
     evening for Coastal Waters of Southern USVI Vieques and
     Eastern Puerto Rico out 10 NM.

     High Rip Current Risk through this afternoon for Coastal Waters
     OF Southwestern Puerto Rico out 10 NM-Coastal Waters of
     Southern Puerto Rico out 10 NM.

     Coastal Flood Advisory until 8 AM AST this morning for Coastal
     Waters of Southern USVI Vieques and Eastern Puerto Rico out
     10 NM.

     High Surf Warning from 8 AM this morning to 6 PM AST this
     evening for Coastal Waters of Southern USVI Vieques and
     Eastern Puerto Rico out 10 NM.

     Small Craft Advisory until 6 AM AST Thursday for Anegada Passage
     Southward to 17N-Atlantic Waters of Puerto Rico and USVI
     from 10 NM to 19.5N-Caribbean Waters of Puerto Rico from 10
     NM to 17N-Coastal Waters OF Northwestern Puerto Rico out 10
     NM-Coastal Waters OF Southwestern Puerto Rico out 10 NM-
     Coastal Waters of Northern Puerto Rico out 10 NM-Coastal
     Waters of Northern USVI and Culebra out 10 NM-Coastal
     Waters of Southern Puerto Rico out 10 NM-Coastal Waters of
     Southern USVI Vieques and Eastern Puerto Rico out 10 NM-
     Mona Passage Southward to 17N.

&&

SHORT TERM...JA
LONG TERM....FC

Perspectivas sobre condiciones peligrosas del tiempo
Servicio Nacional de Meteorologia San Juan PR
448 AM AST martes 7 de marzo de 2017

AMZ710>745-PRZ001>013-081000-
San Juan y vecindad-noreste-sureste-este interior-
norte central-interior central- Ponce y vecindad-Noroeste-
oeste interior-Mayaguez y vecindad-suroeste-Culebra-Vieques-
Aguas costeras y lejos de la costa del Atlantico y aguas
costeras del Caribe-
448 AM AST martes 7 de marzo de 2017

Esta perspectiva sobre las condiciones peligrosas del tiempo es para
Puerto Rico y las aguas costeras adyacentes del Atlantico.

.Dia uno...Hoy y esta noche

.Inundaciones...Lluvias persistentes pudieran resultar en
acumulacion de agua en carreteras y en areas de pobre drenaje.
Ademas, las inundaciones costeras seran una situacion peligrosa hoy
debido a la marejada del norte que estara afectando las aguas
locales.

.Viento...Vientos sostenidos alrededor de 25 mph son posibles a
traves de las areas costeras y alrededor de 20 a 25 nudos sobre las
aguas locales.

.Olas...Se espera oleaje picado y peligroso de hasta 14 pies son
posibles a traves de las aguas mar afuera del Atlantico y los
pasajes locales. Una zona de resacas es tan peligrosa como olas
rompientes que pudieran sobrepasar 18 pies a lo largo de las playas
del norte de Puerto Rico y Culebra. Existe una advertencia y un
aviso de resacas fuertes en efecto para hoy.

.Corrientes submarinas...Existe un riesgo alto de corrientes
submarinas para la mayor parte de las playas locales.

.Dias dos a siete...miercoles a lunes

Las condiciones maritimas continuaran peligrosas durante la mayor
parte de la semana, riesgo alto de corrientes marinas continuaran
durante la semana.

.Comunicado sobre informacion reportada por observadores...

Reportes de inundaciones costeras son apreciados.

AMZ715-725-VIZ001-002-081000-
San Tomas, San John e islas adyacentes-
Santa Cruz-Aguas cerca de la costa del Atlantico y aguas costeras
adyacentes del Caribe-
448 AM AST martes 7 de marzo de 2017

Esta perspectiva sobre las condiciones del tiempo peligrosas es
para Puerto Rico y las aguas costeras adyacentes del Atlantico.

.Dia uno...Hoy y esta noche

.Inundaciones...Lluvias persistentes pudieran resultar en
acumulacion de agua en carreteras y en areas de pobre drenaje.
Ademas, las inundaciones costeras seran una situacion peligrosa hoy
debido a la marejada del norte que estara afectando las aguas
locales.

.Viento...Vientos sostenidos alrededor de 25 mph son posibles a
traves de las areas costeras y alrededor de 20 a 25 nudos sobre las
aguas locales.

.Olas...Se espera oleaje picado y peligroso de hasta 14 pies son
posibles a traves de las aguas mar afuera del Atlantico y los
pasajes locales. Una zona de resacas es tan peligrosa como olas
rompientes que pudieran sobrepasar 18 pies a lo largo de las playas
del norte de Puerto Rico y Culebra. Existe una advertencia y un
aviso de resacas fuertes en efecto para hoy.

.Corrientes submarinas...Existe un riesgo alto de corrientes
submarinas para la mayor parte de las playas.

.Dias dos a siete...miercoles a lunes

Las condiciones maritimas continuaran peligrosas durante la mayor
parte de la semana, riesgo alto de corrientes marinas continuaran
durante la semana.

.Comunicado sobre informacion reportada por observadores...

Reportes de inundaciones costeras son apreciados.

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