Special Weather Statement, NWS JSJ

Area Forecast Discussion
National Weather Service San Juan PR
Issued by National Weather Service Miami FL
144 PM AST Sat Oct 7 2017

.AVIATION...
A cluster of thunderstorms has developed across western Puerto
Rico and will continue to slowly push westward throughout the
afternoon and evening. Gusty winds near 30 knots, frequent
lightning, and reduced visibilities/ceilings are possible with
these storms. Another round of showers/thunderstorms are likely
across the main island of Puerto Rico tomorrow, primarily after
15Z. Outside of the convection, VFR conditions are expected
throughout the period.

&&

PREV DISCUSSION... /issued Issued by National Weather Service Miami FL/

SHORT TERM...Saturday through Monday

Partly to variably cloudy skies prevailed across Puerto Rico and
the US Virgin Islands during the overnight and early morning
hours. Overnight temperatures ranged from the upper 60s to mid 70s
across higher elevations with upper 70s to low 80s across lower
elevations. Winds were light and variable.

Although low level moisture is expected to erode somewhat during the
weekend under a weak mid to upper level ridge, still expect induced
showers and thunderstorms across  portions of Puerto Rico each
afternoon. The aforementioned activity is expected over central and
northwest Puerto Rico as well as portions of the San Juan Metro
Area. In addition, overnight passing showers across windward areas
cannot be ruled out. Soils are already saturated, therefore,. any
prolonged period of heavy rainfall may result in urban and stream
flooding.

LONG TERM...Tuesday through Sunday.

A broad mid to upper level trough is expected to prevail across the
central Atlantic and into the eastern Caribbean Monday through
Wednesday. This feature will allow deep tropical moisture to pool
across the forecast area.  As the trough aloft moves westward, a mid
to upper level ridge is then expected to build from the east.
Therefore, Monday through at least Wednesday under trofiness aloft
and plenty of tropical moisture, expect unsettled weather conditions
across the forecast area with periods of heavy rainfall. Soils are
already saturated and many of the rivers and small streams are
running above normal levels. Therefore, there is a high risk of
river and small stream flooding as well as mudslides in areas of
steep terrain early next week.

A more seasonal weather pattern is then expected by the end of the
workweek and into the weekend as a ridge pattern builds aloft.

MARINE...Light to gentle E/SE breeze will prevail on the south side
of the subtropical ridge located across the northern Atlantic.
Showers and thunderstorms will occur each day as deep tropical
moisture remains in place. North to northeast swells will continue
to enhance local seas on the Atlantic side of the islands through
Saturday night.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU  81  89  81  88 /  30  40  30  70
STT  82  85  82  84 /  30  30  30  50

&&

.SJU WATCHES/WARNINGS/ADVISORIES...
PR...None.
VI...None.
AM...None.
&&

SHORT TERM...99
LONG TERM....99

Perspectivas sobre condiciones peligrosas del tiempo
Servicio Nacional de Meteorologia San Juan PR
Emitido por Servicio Nacional de Meteorologia Miami FL
816 AM AST sabado 7 de octubre de 2017

AMZ710>745-PRZ001>013-081230-
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 cercanas y lejanas a la costa del Atlantico y Caribe-
816 AM AST sabado 7 de octubre 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

Aguaceros y tronadas con lluvias fuertes y vientos en rafagas breves
son posibles principalmente a traves del centro y oeste interior de
Puerto Rico esta tarde. Cualquier lluvia fuerte adicional podria
causar impactos adicionales de inundaciones repentinas.

Existe un riesgo moderado de corrientes marinas a lo largo de
la costa norte de Puerto Rico.

Oleaje de hasta 6 pies es posible sobre las aguas lejanas a la costa
del Atlantico al norte de PuertoRico. Operadores de embarcaciones
pequenas deben ejercer precaucion.

.Dias Dos a Siete...domingo a viernes

Aguaceros y tronadas son posibles cada dia con lluvias fuertes
localmente temprano la semana proxima, lo cual podria causar
impactos adicionales de inundaciones repentinas.

Es probable que un riesgo elevado de corrientes marinas continue
temprano la semana proxima a lo largo de la costa norte.

.Comunicado sobre informacion reportada por observadores...

No se anticipa activacion amplia de observadores, sin embargo, se
les exhorta a los observadores individuales a reportar inundaciones
o corrientes marinas al Servicio Nacional de Meteorologia en San
Juan.

AMZ715-725-VIZ001-002-081230-
San Tomas, San John e Islas Adyacentes-Santa Cruz-Aguas cercanas del
Atlantico y aguas costeras adyacentes del Caribe-
816 AM AST sabado 7 de octubre 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

Existe un riesgo moderado de corrientes marinas para la mayoria
de las playas de Santa Cruz hoy.

.Dias Dos a Siete...domingo a viernes

Es probable que un riesgo elevado de corrientes marinas continue
hasta el domingo para Santa Cruz.

.Comunicado sobre informacion reportada por observadores...

Activacion de observadores no sera necesaria.

Comunicado Especial sobre las Condiciones del Tiempo
Servicio Nacional de Meteorologia San Juan PR
110 PM AST sabado 7 de octubre de 2017

PRZ006-007-009-071800-
Central Interior-Oeste Interior-Ponce y Vecindad-
110 PM AST sabado 7 de octubre de 2017

...UNA TRONADA FUERTE AFECTARA LOS SIGUIENTES MUNICIPIOS DE PUERTO
RICO...LARES...COAMO...PONCE...MOROVIS... OROCOVIS...ADJUNTAS...
YAUCO...VILLALBA...GUAYANILLA...JAYUYA...CIALES...
UTUADO...JUANA DIAZ Y PENUELAS...

A la 1:09 PM AST, imagen de satelite indico tronadas fuertes
localizada a lo largo de una linea extendiendose cerca de Catano
hasta Santa Clara, moviendose hacia el oeste a 15 mph.

Vientos en rafagas de 40 mph son posibles con esta tronada.

Lugares que seran afectados incluyen...
Jayuya, Adjuntas, Utuado, Villalba, Santo Domingo y Cayuco.

Lluvias torrenciales tambien estan ocurriendo con estas tormentas, y
podrian causar inundaciones localizdas. No intente conducir su
vehiculo a traves de carreteras inundadas.

Rayos frecuentes de nube a suelo estan ocurriendo con esta tormenta.
Los rayos pueden afectar a 10 millas de distancia de la tronada.
Busque refugio seguro dentro de un vehiculo o edificio.

Special Weather Statement
National Weather Service San Juan PR
Issued by National Weather Service Miami FL
132 PM AST SAT OCT 7 2017

PRZ007-009>011-071800-
Mayaguez and Vicinity-Western Interior-Southwest-Ponce and Vicinity-
132 PM AST SAT OCT 7 2017

...A STRONG THUNDERSTORM WILL AFFECT SABANA GRANDE...LAS MARIAS...
LARES...SOUTHERN SAN SEBASTIAN...WEST CENTRAL ADJUNTAS...
HORMIGUEROS...SOUTH CENTRAL MOCA...YAUCO...ANASCO...NORTHERN LAJAS...
NORTHERN CABO ROJO...MARICAO...MAYAGUEZ...SOUTHEASTERN RINCON...SAN
GERMAN...WESTERN UTUADO AND SOUTH CENTRAL AGUADA MUNICIPALITIES...

At 131 PM AST, a strong thunderstorm was located near Hormigueros,
moving west at 15 mph.

Winds in excess of 30 mph are possible with this storm.

Locations impacted include...
Las Marias, Cabo Rojo, Mayaguez, Anasco, Sabana Grande, Hormigueros,
San German, Lares, Lajas, Puerto Real, La Playa, Monte Grande,
Maricao, Palmarejo, Sabana Eneas, Betances, Espino, Juncal and
Stella.

Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

LAT...LON 1831 6683 1806 6682 1802 6720 1804 6723
      1817 6720 1821 6717 1832 6725
TIME...MOT...LOC 1731Z 089DEG 14KT 1816 6707

Comunicado Especial sobre las Condiciones del Tiempo
Servicio Nacional de Meteorologia San Juan PR
132 PM AST sabado 7 de octubre de 2017

PRZ007-009>011-071800-
Mayaguez y Vecindad-Oeste Interior-Suroeste-Ponce y Vecindad-
132 PM AST sabado 7 de octubre de 2017

...UNA TRONADA FUERTE AFECTARA LOS SIGUIENTES MUNICIPIOS DE PUERTO
RICO...SABANA GRANDE...LAS MARIAS...LARES...SAN SEBASTIAN...
ADJUNTAS...HORMIGUEROS...MOCA...YAUCO...ANASCO...LAJAS...CABO
ROJO...MARICAO...MAYAGUEZ...RINCON...SAN GERMAN...UTUADO Y AGUADA...

A las 1:3 PM AST, una fuerte tronada estaba localizada cerca de
Hormigueros, moviendose hacia el oeste a 15 mph.

Vientos en rafagas de 30 mph son posibles con esta tronada.

Lugares que seran afectados incluyen...
Las Marias, Cabo Rojo, Mayaguez, Anasco, Sabana Grande, Hormigueros,
San German, Lares, Lajas, Puerto Real, La Playa, Monte Grande,
Maricao, Palmarejo, Sabana Eneas, Betances, Espino, Juncal y
Stella.

Lluvias torrenciales tambien estan ocurriendo con estas tormentas, y
podrian causar inundaciones localizdas. No intente conducir su
vehiculo a traves de carreteras inundadas.

Rayos frecuentes de nube a suelo estan ocurriendo con esta tormenta.
Los rayos pueden afectar a 10 millas de distancia de la tronada.
Busque refugio seguro dentro de un vehiculo o edificio.

Special Weather Statement
National Weather Service San Juan PR
Issued by National Weather Service Miami FL
155 PM AST SAT OCT 7 2017

PRZ005-006-009-071845-
North Central-Central Interior-Western Interior-
155 PM AST SAT OCT 7 2017

...A STRONG THUNDERSTORM WILL AFFECT FLORIDA...MOROVIS...VEGA ALTA...
EASTERN ARECIBO...CENTRAL OROCOVIS...VEGA BAJA...BARCELONETA...
NORTHWESTERN BARRANQUITAS...NORTHERN JAYUYA...CIALES...WESTERN
COROZAL...EASTERN UTUADO AND MANATI MUNICIPALITIES...

At 155 PM AST, a strong thunderstorm was located over Ciales, moving
west at 25 mph.

Winds in excess of 40 mph are possible with this storm.

Locations impacted include...
Jayuya, Vega Alta, Ciales, Morovis, Florida, Manati, Vega Baja,
Barceloneta, Orocovis, Corozal, Miranda, Pajonal, La Alianza,
Barahona, Monserrate, Coto Norte, Franquez, Bajadero, Imbery and La
Luisa.

Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

LAT...LON 1844 6632 1822 6633 1819 6667 1847 6669
TIME...MOT...LOC 1755Z 089DEG 23KT 1832 6649

Special Weather Statement
National Weather Service San Juan PR
Issued by National Weather Service Miami FL
157 PM AST SAT OCT 7 2017

PRZ005-007>010-071845-
Northwest-North Central-Mayaguez and Vicinity-Western Interior-Ponce
and Vicinity-
157 PM AST SAT OCT 7 2017

...A STRONG THUNDERSTORM WILL AFFECT NORTH CENTRAL SABANA GRANDE...
LAS MARIAS...LARES...SAN SEBASTIAN...WESTERN ARECIBO...SOUTHEASTERN
ISABELA...ADJUNTAS...NORTHWESTERN YAUCO...QUEBRADILLAS...CAMUY...
MARICAO...NORTHEASTERN SAN GERMAN...HATILLO AND UTUADO
MUNICIPALITIES...

At 156 PM AST, a strong thunderstorm was located near Lares, moving
west at 15 mph.

Winds in excess of 40 mph are possible with this storm.

Locations impacted include...
Arecibo, Adjuntas, Quebradillas, Utuado, Lares, San Sebastian, Camuy,
Hatillo, Rafael Capo, Rafael Gonzalez, Bajadero, Maricao, Juncal,
Quebrada, Cayuco, Piedra Gorda, Cacao, Corcovado and Mora.

Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

LAT...LON 1847 6668 1816 6666 1813 6701 1848 6703
TIME...MOT...LOC 1756Z 099DEG 12KT 1830 6683

Special Weather Statement
National Weather Service San Juan PR
Issued by National Weather Service Miami FL
245 PM AST SAT OCT 7 2017

PRZ008>010-071930-
Northwest-Mayaguez and Vicinity-Western Interior-
245 PM AST SAT OCT 7 2017

...A STRONG THUNDERSTORM WILL AFFECT LAS MARIAS...LARES...SAN
SEBASTIAN...SOUTHEASTERN ISABELA...NORTHWESTERN ADJUNTAS...MOCA...
QUEBRADILLAS...EASTERN ANASCO...CAMUY...NORTH CENTRAL MARICAO...
NORTHEASTERN MAYAGUEZ...WESTERN HATILLO...WEST CENTRAL UTUADO AND
EASTERN AGUADA MUNICIPALITIES...

At 245 PM AST, a strong thunderstorm was located over San Sebastian,
moving east at 5 mph.

Winds in excess of 40 mph are possible with this storm.

Locations impacted include...
Lares, Hatillo, San Sebastian, Camuy, Moca, Quebradillas, Hato
Arriba, Juncal, Quebrada, Piedra Gorda, Cacao and Espino.

Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

LAT...LON 1850 6680 1820 6680 1819 6712 1839 6713
      1850 6683
TIME...MOT...LOC 1845Z 256DEG 6KT 1834 6695