The Doppler radar detected showers with periods of moderate to heavy rainfall mainly across the interior, West and Southwest Puerto Rico.
Every event with a place to put it. Tap one for its entry below.
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.
The episode as NWS SJU wrote it up.
The Doppler radar detected showers with periods of moderate to heavy rainfall mainly across the interior, West and Southwest Puerto Rico.
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 Sep 13, 2:00 PM AST, 1 hour 39 minutes earlier.
Area Forecast Discussion National Weather Service San Juan PR 200 PM AST TUE SEP 13 2016 .SYNOPSIS... Trofiness aloft will continues to weakens as a Subequatorial ridge continue to build and spread across the region from the Northeast during the rest of the week. A surface high pressure, across the West and North Central Atlantic, and Tropical Storm Ian, well North of the Forecast area, will help to maintain a light to moderate East Northeast wind flow across the region. Occasional patches of surface moisture will move across the islands. && .DISCUSSION... Clouds and showers increased across the islands late this morning and into the afternoon hours. The Doppler Radar detected showers with periods of moderate to heavy rainfall mainly across the Interior, West and Southwest Puerto Rico. Also, moderate to heavy showers developed and moved downwind from St Thomas and St Croix. Relative unstable conditions will continue, and the potential for showers and thunderstorms development remains possible across the islands at least until the evening hours. For wednesday, a ridge aloft is expected to build from the Northeast over the region. This feature is expected to erode the available moisture and limit afternoon convection. Afternoon showers and thunderstorms will be focus mainly across the West and Interior sections of PR each day. Also, keep in mind that trade wind showers remains possible across the U.S. Virgin Islands and the windward sections of PR during the overnight and early morning hours. && .AVIATION... SHRA/TSRA expected to develop after 13/16Z across central, western and southwestern PR which will likely cause VCTS and possible MVFR conds across TJMZ and TJPS between 13/16Z-21Z. Winds will continue to be from the East to ENE at 10KT or less through 13/13Z, increasing to about 10-15KT with sea breeze variations after 13/13Z. && .MARINE... A small northeast swell from Tropical Storm Ian is spreading across the local Atlantic waters and Caribbean Passages. Elsewhere expect seas below 6 feet and winds below 18 knots. && .PRELIMINARY POINT TEMPS/POPS... SJU 79 90 79 90 / 40 40 20 20 STT 79 89 78 90 / 40 40 20 20 && .SJU Watches/Warnings/Advisories... PR...None. VI...None. AM...None. && 71/27
PERSPECTIVAS SOBRE CONDICIONES PELIGROSAS DEL TIEMPO SERVICIO NACIONAL DE METEOROLOGIA SAN JUAN PR 442 AM AST MARTES 13 DE SEPTIEMBRE DE 2016 AMZ710>745-PRZ001>013-140845- 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- 442 AM AST MARTES 13 DE SEPTIEMBRE DE 2016 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 .TRONADAS...EXISTE UNA PROBABILIDAD DE TRONADAS DISPERSAS CON LLUVIAS FUERTES Y VIENTOS EN RAFAGAS BREVES ESTA TARDE A TRAVES DE PORCIONES DEL INTERIOR Y OESTE DE PUERTO RICO. .INUNDACIONES...LLUVIAS FUERTES PODRIAN RESULTAR EN INUNDACIONES URBANAS Y DE RIACHUELOS A TRAVES DE SECTORES DEL INTERIOR Y OESTE DE PUERTO RICO. .CORRIENTES SUBMARINAS...EXISTE UN RIESGO MODERADO DE CORRIENTES SUBMARINAS PARA LA MAYORIA DE LAS PLAYAS DEL NORTE Y PARA ALGUNAS PLAYAS DEL SURESTE DE PUERTO RICO...ASI COMO PARA LAS PLAYAS DEL SUR DE VIEQUES. .DIAS DOS HASTA SIETE...MIERCOLES A LUNES CONDICIONES HUMEDAS E INESTABLES CONTINUARAN HASTA POR LO MENOS EL MIERCOLES. ESTO RESULTARA EN LLUVIAS FUERTES E INUNDACIONES URBANAS EN PORCIONES DEL INTERIOR Y OESTE DE PUERTO RICO DURANTE LAS HORAS DE LA TARDE. .COMUNICADO SOBRE INFORMACION REPORTADA POR OBSERVADORES... NO SE ANTICIPA ACTIVACION AMPLIA DE OBSERVADORES...SIN EMBARGO...SE LES EXHORTA A LOS OBSERVADORES INDIVIDUALES A REPORTAR VIENTOS FUERTES E INUNDACIONES AL SERVICIO NACIONAL DE METEOROLOGIA EN SAN JUAN. AMZ715-725-VIZ001-002-140845- SAN TOMAS SAN JOHN E ISLAS ADYACENTES-SANTA CRUZ- AGUAS CERCA DE LA COSTA DEL ATLANTICO Y AGUAS COSTERAS ADYACENTES DEL CARIBE- 442 AM AST MARTES 13 DE SEPTIEMBRE 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 .CORRIENTES SUBMARINAS...EXISTE UN RIESGO MODERADO DE CORRIENTES SUBMARINAS PARA LAS PLAYAS DEL NORTE Y ESTE DE SANTA CRUZ. .DIAS DOS HASTA SIETE...MIERCOLES A LUNES RIESGO MODERADO DE CORRIENTES SUBMARINAS SON POSIBLES PARA ALGUNAS PLAYAS DE LAS ISLAS LOCALES EL MIERCOLES. .COMUNICADO SOBRE INFORMACION REPORTADA POR OBSERVADORES... NO SE ANTICIPA ACTIVACION AMPLIA DE OBSERVADORES...SIN EMBARGO...SE LES EXHORTA A LOS OBSERVADORES INDIVIDUALES A REPORTAR VIENTOS FUERTES E INUNDACIONES AL SERVICIO NACIONAL DE METEOROLOGIA EN SAN JUAN.
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN JUAN PR
126 PM AST TUE SEP 13 2016
PRZ010-011-131845-
SOUTHWEST-MAYAGUEZ AND VICINITY-
126 PM AST TUE SEP 13 2016
...A STRONG THUNDERSTORM WILL AFFECT SOUTHWESTERN SAN GERMAN...LAJAS
AND CABO ROJO MUNICIPALITIES...
AT 124 PM AST...A STRONG THUNDERSTORM WAS LOCATED OVER LAJAS. THE
STORM IS MOVING SLOWLY WEST TOWARDS CABO ROJO AND WILL BE PRODUCING
INTENSE LIGHTNING...HEAVY RAIN...AND STRONG GUSTY WINDS.
WINDS IN EXCESS OF 30 MPH ARE POSSIBLE WITH THIS STORM.
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 1797 6721 1799 6721 1800 6720 1801 6717
1803 6718 1803 6720 1812 6701 1796 6698
1797 6699 1797 6700 1796 6700 1797 6701
1798 6706 1795 6710 1795 6714 1797 6718
1794 6719 1795 6719
TIME...MOT...LOC 1724Z 240DEG 0KT 1803 6709
FCCOMUNICADO ESPECIAL SOBRE LAS CONDICIONES DEL TIEMPO SERVICIO NACIONAL DE METEOROLOGIA SAN JUAN PR 126 PM AST MARTES 13 DE SEPTIEMBRE DE 2016 PRZ010-011-131845- SUROESTE-MAYAGUEZ Y VECINDAD- 126 PM AST MARTES 13 DE SEPTIEMBRE DE 2016 ...UNA FUERTE TRONADA AFECTARA LOS MUNICIPIOS DE SAN GERMAN...LAJAS Y CABO ROJO... A LAS 1:24 PM AST...UNA FUERTE TRONADA ESTABA LOCALIZADA SOBRE LAJAS. ESTA TORMENTA SE ESTABA MOVIENDO HACIA EL OESTE SOBRE CABO ROJO Y ESTARA PRODUCIENDO RAYOS INTENSOS...LLUVIAS FUERTES Y VIENTOS EN RAFAGA FUERTES. VIENTOS EN EXCESO DE 30 MPH SON POSIBLES COMO PARTE DE ESTA ACTIVIDAD. LLUVIAS TORRENCIALES ESTAN OCURRIENDO CON ESTA TORMENTA Y PODRIAN CAUSAR INUNDACIONES LOCALIZADAS. NO INTENTE CONDUCIR SU VEHICULO A TRAVES DE CARRETERAS INUNDADAS. RAYOS FREQUENTES DE NUBE A TIERRA ESTAN OCURRIENDO CON ESTA TRONADA. LOS RAYOS PUEDEN CAER A 10 MILLAS DE DISTANCIA DE UNA TRONADA. BUSQUE REFUGIO SEGURO DENTRO DE UN EDIFICIO O VEHICULO. FC/ICOLONPAGAN
The national radar mosaic for the moment the first event began.
2 flood. Local standard time, as filed.
Highway 153 and road 541 flooded near k.m 0.2 to just above curb level.
Bypass in Ponce in front of Wendy's closed due to flooding.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Puerto Rico in 2016Every state in 2016This day in weather historyWarnings in Puerto Rico, September 2016
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: 661216, 661215.