Puerto Rico, 2016

Flooding in Puerto Rico, July 13, 2016

July 13, 2016 · NWS SJU · 7 events in 2 counties and zones

A weak surface trough affected the islands, resulting in scattered showers and a few thunderstorms.

Where it happened

Every event with a place to put it. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

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The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
7

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS SJU wrote it up.

A weak surface trough affected the islands, resulting in scattered showers and a few thunderstorms.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS San Juan, PR wrote its last area forecast discussion before the first event at Jul 13, 11:45 AM AST, 1 hour 20 minutes earlier.

Area forecast discussion, Jul 13, 11:45 AM AST, 1 hour 20 minutes before
Area Forecast Discussion
National Weather Service San Juan PR
1145 AM AST WED JUL 13 2016

.UPDATE...Showers started moving into the local area today,
affecting eastern PR and the USVI in the morning but gradually
developing showers across western PR. Shower and thunderstorm
development is expected to continue into the afternoon hours with
western PR having the highest chance of thunderstorms.

No changes were made to the inherited forecast as the latest
guidance is in agreement with the inherited forecast and
observations.

&&

.AVIATION...VCSH expected across most of the local terminals as
brief SHRA moves over the area. SHRA/TSRA possible in and around
TJMZ since convection is expected across W-PR. Winds from the E to
ESE expected to continue today at 10-15KT and gusty with sea
breeze variations. Decreasing winds after 13/23Z.

&&

.MARINE...No changes from previous discussion. The seas will be
generally 2-5 feet and winds at around 15 knots.

&&

.PREV DISCUSSION... /issued 546 AM AST WED JUL 13 2016/

SYNOPSIS... Weak surface trough will move across
the islands today...bringing scattered showers and a few
thunderstorms to the forecast area. The next tropical wave is
forecast to move over the region on Saturday.

DISCUSSION...Increasing cloudiness with scattered showers were
observed across the local islands overnight. Most showers were
over the local coastal waters...with some affecting mainly Saint
Thomas and Saint John in the U.S. Virgin Islands and the southeast
and north sections of Puerto Rico. This activity is associated
with a weak surface trough which will be moving across the area
today. As a result...showers and thunderstorms are expected to
affect the region. For this afternoon...showers and thunderstorms
will develop mainly across the Cordillera Central of Puerto Rico.

For the remainder of the work week...passing showers embedded in
the trade winds will affect the local islands from time to
time...but mainly during the morning hours. Next tropical wave is
expected to affect region Saturday.

AVIATION...Mostly VFR conditions expected across most of the
local flying area. However...brief and light SHRA will continue
during the morning, causing VCSH across most of the terminals.
SHRA/TSRA pos across western interior, with MVFR cond and mnt
obscurations across TJMZ/TJBQ and pos TJSJ. Winds from the E to E-NE
at 10 to 15 KTS with higher gusts.

MARINE...Seas up to 5 feet and winds up to 15 knots are expected
over the coastal waters.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU  89  78  89  78 /  50  40  40  20
STT  88  78  88  78 /  40  40  40  30

&&

.SJU Watches/Warnings/Advisories...
PR...None.
VI...None.
AM...None.
&&

25/09
Hazardous weather outlook, Jul 13, 12:11 PM AST, 54 minutes before
PERSPECTIVAS SOBRE CONDICIONES PELIGROSAS DEL TIEMPO
SERVICIO NACIONAL DE METEOROLOGIA SAN JUAN PR
1207 PM AST MIERCOLES 13 DE JULIO DE 2016

AMZ710>745-PRZ001>013-141615-
SAN JUAN Y VECINDAD-NORESTE-SURESTE-INTERIOR ESTE-
CENTRAL NORTE-INTERIOR CENTRAL-PONCE Y VECINDAD-NOROESTE-
INTERIOR OESTE-MAYAGUEZ Y VECINDAD-SUROESTE-CULEBRA-VIEQUES-
AGUAS COSTERAS Y MAR AFUERA DEL ATLANTICO Y DEL CARIBE-
1207 PM AST MIERCOLES 13 DE JULIO DE 2016

ESTA PERSPECTIVA SOBRE LAS CONDICIONES PELIGROSAS DEL TIEMPO ES
PARA PUERTO RICO Y LAS AGUAS COSTERAS ADYACENTES DEL ATLANTICO.

.DIA UNO...ESTA TARDE Y NOCHE

.TRONADAS...EXISTE UNA PROBABILIDAD BAJA DE TRONADAS CON LLUVIA
FUERTES Y RAFAGAS DE VIENTOS ESTA TARDE A TRAVES DE VARIAS PARTES DE
PUERTO RICO.

.VIENTOS...SE ESPERAN VIENTOS SOSTENIDOS EN EXCESO DE 20 MPH CON
RAFAGAS MAS FUERTES A TRAVES DE LAS AGUAS LOCALES CERCANAS A LA
COSTA A LO LARGO DE LA COSTA NORTE Y SUR DE PUERTO RICO Y BREVEMENTE
A LO LARGO DE LAS COSTAS CONTIGUAS.

.OLAS...SE ESPERA OLEAJE PICADO DE HASTA 5 PIES A TRAVES DE LAS AGUAS
MAR AFUERA DEL ATLANTICO Y CARIBE.

.CORRIENTES SUBMARINAS...EXISTE UN RIESGO MODERADO DE CORRIENTES
SUBMARINAS A LO LARGO DE LA COSTA NORTE DE PUERTO RICO...AL IGUAL
QUE LA COSTA ESTE DE CULEBRA Y VIEQUES.

.DIAS DOS HASTA SIETE...JUEVES A MARTES

EL RIESGO MODERADO DE CORRIENTES SUBMARINAS CONTINUARAN SURANTE LOS
PROXIMOS DIAS. SE ESPERA OTRA RONDA DE ACTIVIDAD DE AGUACEROS Y
TRONADAS DURANTE LA SEMANA PROXIMA Y UN LIGERO AUMENTO EN EL OLEAJE
EL VIERNES.

.COMUNICADO SOBRE INFORMACION REPORTADA POR OBSERVADORES...

NO SE ANTICIPA ACTIVACION AMPLIA DE OBSERVADORES...SIN EMBARGO...SE
LES EXHORTA A LOS OBSERVADORES INDIVIDUALES A REPORTAR CORRIENTES
SUBMARINAS AL SERVICIO NACIONAL DE METEOROLOGIA EN SAN JUAN.

AMZ715-725-VIZ001-002-141615-
SAN TOMAS SAN JOHN E ISLAS ADYACENTES-
SANTA CRUZ-AGUAS CERCA DE LA COSTA DEL ATLANTICO Y AGUAS COSTERAS
ADYACENTES DEL CARIBE-
1207 PM AST MIERCOLES 13 DE JULIO DE 2016

ESTA PERSPECTIVA SOBRE LAS CONDICIONES PELIGROSAS DEL TIEMPO ES
PARA LAS ISLAS VIRGENES AMERICANAS Y LAS AGUAS COSTERAS ADYACENTES.

.DIA UNO...HOY Y ESTA NOCHE

.OLAS...SE ESPERA OLEAJE PICADO HASTA 5 PIES A TRAVES DE LAS
AGUAS MAR AFUERA DEL ATLANTICO Y CARIBE.

.CORRIENTES SUBMARINAS...EXISTE UN RIESGO MODERADO DE CORRIENTES
SUBMARINAS PARA LA COSTA ESTE DE SANTA CRUZ.

.DIAS DOS A SIETE...JUEVES A MARTES

EL RIESGO MODERADO DE CORRIENTES SUBMARINAS CONTINUARAN SURANTE
LOSPROXIMOS DIAS. SE ESPERA OTRA RONDA DE ACTIVIDAD DE AGUACEROS Y
TRONADAS DURANTE LA SEMANA PROXIMA Y UN LIGERO AUMENTO EN EL
OLEAJE EL VIERNES.

.COMUNICADO SOBRE INFORMACION REPORTADA POR OBSERVADORES...

NO SE ANTICIPA ACTIVACION AMPLIA DE OBSERVADORES...SIN EMBARGO...SE
LES EXHORTA A LOS OBSERVADORES INDIVIDUALES A REPORTAR TROMBAS
MARINAS Y CORRIENTES SUBMARINAS AL SERVICIO NACIONAL DE METEOROLOGIA
EN SAN JUAN.

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

7 flood. Local standard time, as filed.

Flood, San Juan

When
July 13, 1:05 PM AST to 4:45 PM AST
Where
San Juan County, 1.87 mi NW of San Juan to 1.85 mi NW of San Juan
Cause
Heavy Rain
Reported by
Emergency Manager
Coordinates
18.401, -66.068

Flooding reported at 1044 street 5 in the urbanization Villa Nevares.

Flood, Guaynabo

When
July 13, 1:10 PM AST to 4:45 PM AST
Where
Guaynabo County, 7.52 mi NW of Guaynabo to 7.36 mi NW of Guaynabo
Cause
Heavy Rain
Reported by
Emergency Manager
Coordinates
18.410, -66.108

Urban flooding. 911 director, Rivera reported a woman trapped in a car at a flooded road near Martinez Nadal and San Patricio Plaza.

Flood, Guaynabo

When
July 13, 1:11 PM AST to 4:45 PM AST
Where
Guaynabo County, 7.44 mi NW of Guaynabo to 6.21 mi WNW of Guaynabo
Cause
Heavy Rain
Reported by
Emergency Manager
Coordinates
18.390, -66.124

Flooding reported in route 2 in direction towards Bayamon before Martinez Nadal Ave.

Flood, San Juan

When
July 13, 1:14 PM AST to 4:45 PM AST
Where
San Juan County, 2.31 mi NW of San Juan to 2.03 mi NW of San Juan
Cause
Heavy Rain
Reported by
Emergency Manager
Coordinates
18.400, -66.078

Flooding reported in front of the medical science building in Urbanization of Reparto Universitario.

Flood, San Juan

When
July 13, 1:18 PM AST to 4:45 PM AST
Where
San Juan County, 1.8 mi SW of San Juan to 1.72 mi SW of San Juan
Cause
Heavy Rain
Reported by
Emergency Manager
Coordinates
18.362, -66.069

Flooding reported at street 16 next to the park in Puerto Nuevo in Las Lomas.

Flood, San Juan

When
July 13, 2:11 PM AST to 4:45 PM AST
Where
San Juan County, 2 mi NW of San Juan to 1.76 mi NW of San Juan
Cause
Heavy Rain
Reported by
Emergency Manager
Coordinates
18.400, -66.072

Flooding reported in Expreso Las Americas in direction towards Caguas passing Centro Medico exit.

Flood, San Juan

When
July 13, 4:06 PM AST to 4:45 PM AST
Where
San Juan County, 0.17 mi SW of San Juan to 0.25 mi WSW of San Juan
Cause
Heavy Rain
Reported by
Emergency Manager
Coordinates
18.378, -66.052

Flooding reported at 389 San Genaro street in Rio Piedras.

What these are

Flood
Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Puerto Rico in 2016Every state in 2016This day in weather historyWarnings in Puerto Rico, July 2016

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 652785, 652786, 652787, 652788, 652790, 652793, 652791.