Alert archive / Puerto Rico / Special Weather Statements in 2020

Special Weather Statement, NWS JSJ

July 21, 2020

NWS JSJ issued this special weather statement at Jul 21, 2020, 12:44 PM CDT. It was in force for 46 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 21, 2020, 12:44 PM CDT (17:44 UTC)
Expired: Jul 21, 2020, 1:30 PM CDT
In force: 46 min
Issued by: NWS JSJ

The radar

The San Juan radar (TJUA), 91 km from the middle of the area, began a volume at 17:44 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS JSJ wrote its last area forecast discussion before this special weather statement went out at Jul 21, 9:46 AM CDT, 2 hours 58 minutes earlier.

Area forecast discussion, Jul 21, 9:46 AM CDT, 2 hours 58 minutes before

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Hazardous weather outlook, Jul 21, 4:38 AM CDT, 8 hours 6 minutes before

Perspectivas sobre Condiciones Peligrosas del Tiempo
Servicio Nacional de Meteorologia San Juan PR
534 AM AST martes 21 de julio de 2020

AMZ710>745-PRZ001>013-220945-
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 mar afuera del Atlantico y Caribe-
534 AM AST martes 21 de julio de 2020

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

.Dia Uno...Hoy y esta noche

.Tronadas...Existe el potencial de tronadas con lluvia fuertes y
vientos en rafagas breves esta tarde a traves de sectores del
interior, oeste y noroeste de Puerto Rico. Ademas, tronadas aisladas
son posibles a traves de sectores del area metropolitana de San Juan.

.Inundaciones...Lluvias moderadas pudieran resultar en acumulacion
de agua en carreteras y areas de pobre drenaje, mientras que lluvias
fuertes pudieran resultar en inundaciones urbanas y de riachuelos.

.Vientos...Vientos sostenidos de 20 MPH (17 nudos) son anticipados a
traves de las aguas costeras del Atlantico de Puerto Rico.

.Oleaje...Oleaje picado de hasta 5 pies es anticipado a traves de
las aguas del Atlantico.

.Corrientes Marinas...Existe un riesgo moderado de corrientes
marinas para las playas del norte de Puerto Rico, al igual que las
playas del norte y el este de Culebra y este de Vieques.

.Dias dos hasta el siete...miercoles hasta lunes

Riesgo moderado de corrientes marinas continuara para playas del
norte de Puerto Rico esta semana. Una vaguada en los niveles altos
aumentara el potencial de tronadas y lluvias el martes y
potencialmente el miercoles, especialmente durante las horas de la
tarde. Se pronostica que una onda tropical se acercara al area local
el viernes y el sabado, trayendo humedad amplia y posible aumento
significativo en la actividad de aguaceros.

.Comunicado sobre informacion reportada por observadores...

No se anticipa activacion de observadores, sin embargo, se
recomienda a los observadores individuales que reporten vientos,
oleaje y corrientes marinas al Servicio Nacional de Meteorologia en
San Juan mientras siguen las indicaciones de las autoridades locales
y estatales.

AMZ715-725-VIZ001-002-220945-
San Tomas, San John y Islas Adyacentes-Santa Cruz-
Aguas cercanas del Atlantico y aguas costeras adyacentes del Caribe-
534 AM AST martes 21 de julio de 2020

Esta perspectiva sobre las condiciones peligrosas del tiempo es para
Islas Virgenes Estadounidenses y las aguas costeras adyacentes.

.Dia Uno...Hoy y esta noche

.Inundaciones...Lluvias de moderadas a fuertes pudieran resultar en
acumulacion de agua en carreteras y areas de poco drenaje.

.Oleaje...Oleaje picado de hasta 5 pies es anticipado a traves de
las aguas alrededor de las Islas Virgenes Estadounidenses.

.Corrientes Marinas...Existe un riesgo moderado de corrientes
marinas para el norte y este de Santa Cruz.

.Dias dos hasta el siete...miercoles a lunes

Se espera riesgo moderado de corrientes marinas para las playas del
norte y este de Santa Cruz esta semana. Una vaguada en los niveles
altos aumentara el potencial de aguaceros y tronadas el martes. La
actividad de aguaceros pudiera causar acumulacion de agua en
carreteras y areas de pobre drenaje. Se pronostica que una onda
tropical se acercara al area local el viernes y sabado, resultando
en humedad abundante y posible aumento significativo en la actividad
de aguaceros.

.Comunicado sobre informacion reportada por observadores...

No se anticipa activacion de observadores, sin embargo, se
recomienda a los observadores individuales que reporten vientos,
oleaje y corrientes marinas al Servicio Nacional de Meteorologia en
San Juan mientras siguen las indicaciones de las autoridades locales
y estatales.

In the hours before

Special weather statement, Jul 21, 10:00 AM CDT, 2 hours 44 minutes before

Special Weather Statement
National Weather Service San Juan PR
Issued by National Weather Service Miami FL
1100 AM AST Tue Jul 21 2020

PRZ001-004>006-211530-
San Juan and Vicinity-North Central-Central Interior-Eastern
Interior-
1100 AM AST Tue Jul 21 2020

...A STRONG THUNDERSTORM WILL AFFECT AGUAS BUENAS...CENTRAL
CAROLINA...NORTHERN CAGUAS...NARANJITO...BAYAMON...TOA BAJA...
TRUJILLO ALTO...NORTHEASTERN COMERIO...SAN JUAN...NORTHWESTERN
GURABO...GUAYNABO...SOUTHEASTERN DORADO...NORTHERN CIDRA...EAST
CENTRAL COROZAL...CATANO AND TOA ALTA MUNICIPALITIES...

At 1100 AM AST, a strong thunderstorm was located near Bairoa, or
near Aguas Buenas, moving northwest at 15 mph.

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

Locations impacted include...
San Juan, Aguas Buenas, Caguas, Trujillo Alto, Guaynabo, Toa Alta,
Sabana Seca, Catano, Bayamon, Naranjito, Corozal, Carolina,
Campanilla, Ingenio, H. Rivera Colon, San Jose, Galateo, Pajaros,
Bairoa and Candelaria.

If outdoors, consider seeking shelter inside a building.

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

LAT...LON 1849 6618 1847 6616 1848 6614 1836 6595
      1820 6605 1828 6633 1849 6621
TIME...MOT...LOC 1500Z 116DEG 13KT 1832 6608

RAG

Special weather statement, Jul 21, 10:26 AM CDT, 2 hours 18 minutes before

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Special weather statement, Jul 21, 10:34 AM CDT, 2 hours 10 minutes before

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Special weather statement, Jul 21, 10:40 AM CDT, 2 hours 4 minutes before

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Special weather statement, Jul 21, 10:41 AM CDT, 2 hours 3 minutes before

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Special weather statement, Jul 21, 12:44 PM CDT, 0 minutes before

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The office that day

Everything else NWS JSJ issued on the same UTC day.

Issued	Product	Office	Lasted
Jul 21, 10:00 AM CDT	Special Weather Statement	JSJ	30 min
Jul 21, 10:07 AM CDT	Severe Thunderstorm Warning	JSJ	38 min
Jul 21, 10:34 AM CDT	Special Weather Statement	JSJ	41 min
Jul 21, 1:49 PM CDT	Special Marine Warning	JSJ	41 min
Jul 21, 4:51 PM CDT	Areal Flood Advisory	JSJ	3 hr

Nearby

Special Weather Statements in Puerto Rico, 2020 Every special weather statement in 2020

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.