As a trough and lingering moisture affected the local area, showers and thunderstorms developed. Due to saturated soils, urban and small stream flooding affected the area.
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.
As a trough and lingering moisture affected the local area, showers and thunderstorms developed. Due to saturated soils, urban and small stream flooding affected the area.
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 Nov 22, 2:15 PM AST, 35 minutes earlier.
Area Forecast Discussion
National Weather Service San Juan PR
215 PM AST Tue Nov 22 2016
.SYNOPSIS...
Trough aloft will continue to weak over the region today. At low
level, a frontal boundary/shear-line and above normal moisture
will continue to enhance showers and possibly one or two
thunderstorms across the region this afternoon. Weather conditions
are expected to slowly improve during the rest of the week and
into the upcoming weekend, as a ridge aloft builds over the region
and a relative dry air mass encompass the region. However, the
lingering moisture combined with the diurnal heating and local
effects will be enough to result in the typical trade wind showers
during the overnight and early morning showers, followed by
showers and thunderstorms along and to the west of the Cordillera
Central each afternoon.
&&
.DISCUSSION...
Cloudy skies prevailed over the region today, as a mid to upper
level cloud layer moved across the islands. For the rest of this
afternoon, showers with isolated thunderstorms are likely to
continue across Mainland Puerto Rico, but the strongest activity
is expected along the interior and western sections of Puerto
Rico, as well as across the San Juan Metro-Area. Due to already
saturated soils, potential for urban and small stream flooding as
well as sharp rises along rivers continues. Mudslides in areas of
steep terrain is likely.
Although, weather conditions will continue to slowly improve during
the rest of the work week and into the upcoming weekend, above
normal surface moisture will result in locally induced showers and
isolated thunderstorms each day across the region. Particularly,
along the east half portion of Puerto Rico and the U.S. Virgin
Islands during the overnight and early morning hours. Followed by
afternoon convection along and to the west of the Cordillera, but
decreasing each day.
&&
.AVIATION...
MVFR conds in SHRA/ isolated TSRA as well as mountain
obscurations will remain possible at all PR sites through the
forecast period as a weakening trof moves away. Across the Leeward
and USVI terminals mostly VFR conds with VCSH. ESE winds 10 knots
or less becoming light and variable overnight.
&&
.MARINE...Marine Conditions will continue to slowly diminish over
the Atlantic Waters tonight, but winds are to gradually increase
across the offshore shore Atlantic waters through Friday as the
local pressure gradient tightens. This will lead to choppy seas.
&&
.PRELIMINARY POINT TEMPS/POPS...
SJU 76 85 76 85 / 50 50 20 20
STT 76 87 78 87 / 50 50 20 20
&&
.SJU WATCHES/WARNINGS/ADVISORIES...
PR...High Rip Current Risk until midnight AST tonight for Culebra-
Mayaguez and Vicinity-North Central-Northeast-Northwest-San
Juan and Vicinity-Southeast-Western Interior.
VI...High Rip Current Risk until midnight AST tonight for
St.Thomas...St. John.. and Adjacent Islands.
AM...High Rip Current Risk until midnight AST tonight for Coastal
Waters of Northern USVI and Culebra out 10 NM-Coastal
Waters of Southern USVI Vieques and Eastern Puerto Rico out
10 NM.
Small Craft Advisory until 6 AM AST Saturday for Atlantic Waters
of Puerto Rico and USVI from 10 NM to 19.5N.
&&
23/27PERSPECTIVAS SOBRE CONDICIONES PELIGROSAS DEL TIEMPO...CORRECCION SERVICIO NACIONAL DE METEOROLOGIA SAN JUAN PR 752 AM AST LUNES 21 DE NOVIEMBRE DE 2016 AMZ710>745-PRZ001>013-231000- SAN JUAN Y VECINDAD-NORESTE-SURESTE- ESTE INTERIOR-NORTE CENTRAL-CENTRAL INTERIOR-PONCE Y VECINDAD- NOROESTE-OESTE INTERIOR-MAYAGUEZ Y VECINDAD-SUROESTE-CULEBRA-VIEQUES- AGUAS COSTERAS Y MAR AFUERA DEL ATLANTICO Y DEL CARIBE- 752 AM AST LUNES 21 DE NOVIEMBRE 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 LEVE DE TRONADAS AISLADAS CON LLUVIAS FUERTES Y VIENTOS EN RAFAGAS BREVES A TRAVES DE PUERTO RICO, VIEQUES Y CULEBRA HOY. .INUNDACIONES...DEBIDO A SUELOS YA SATURADOS, LLUVIAS FUERTES PODRIAN RESULTAR EN INUNDACIONES DE RIACHUELOS ASI COMO AUMENTOS SUBITOS A LO LARGO DE LOS RIOS, PARTICULARMENTE SOBRE EL CENTRO DE PUERTO RICO. DESLIZAMIENTO DE LODO SON PROBABLES EN AREAS DE TERRENO EMPINADO. INUNDACIONES URBANAS SE ANTICIPAN. .OLAS...OLEAJE PICADO DE HASTA 6 PIES SE ESPERA A TRAVES DE LAS AGUAS DEL ATLANTICO Y LOS PASAJES LOCALES. .CORRIENTES SUBMARINAS...EXISTE UN RIESGO ALTO DE CORRIENTES SUBMARINAS PARA LAS COSTAS DEL NORTE DE PUERTO RICO Y CULEBRA. .DIAS DOS HASTA SIETE...MARTES A DOMINGO UN PATRON RELATIVAMENTE INESTABLE SE PRONOSTICA QUE PERSISTA SOBRE LA REGION HASTA POR LO MENOS EL MIERCOLES. DEBIDO A SUELOS YA SATURADOS, CUALQUIER LLUVIA FUERTE ADICIONAL PROBABLEMENTE RESULTARA INUNDACIONES URBANAS Y DE RIACHUELOS. .COMUNICADO SOBRE INFORMACION REPORTADA POR OBSERVADORES... NO SE ANTICIPA ACTIVACION AMPLIA DE OBSERVADORES, SIN EMBARGO, SE LES EXHORTA A LOS OBSERVADORES A REPORTAR INUNDACIONES Y CORRIENTES SUBMARINAS AL SERVICIO NACIONAL DE METEOROLOGIA EN SAN JUAN. AMZ715-725-VIZ001-002-231000- SAN TOMAS SAN JOHN E ISLAS ADYACENTES-SANTA CRUZ- AGUAS CERCA DE LA COSTA DEL ATLANTICO Y AGUAS COSTERAS ADYACENTES DEL CARIBE- 752 AM AST LUNES 21 DE NOVIEMBRE 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 .TRONADAS...EXISTE UNA PROBABILIDAD LEVE DE TRONADAS AISLADAS CON LLUVIAS FUERTES Y VIENTOS EN RAFAGAS BREVES HOY. .INUNDACIONES...EXISTE UNA LEVE PROBABILIDAD DE INUNDACIONES CON LAS LLUVIAS FUERTES QUE PODRIAN RESULTAR INUNDACIONES URBANAS Y DE RIACHUELOS. .OLAS...OLEAJE PICADO DE HASTA 6 PIES SE ESPERA A TRAVES DE LAS AGUAS DEL ATLANTICO Y LOS PASAJES LOCALES. .CORRIENTES SUBMARINAS...EXISTE UN RIESGO ALTO DE CORRIENTES SUBMARINAS PARA LAS COSTAS DEL NORTE DE SAN THOMAS. EXISTE UN RIESGO MODERADO DE CORRIENTES SUBMARINAS A TRAVES DE SANTA CRUZ. .DIAS DOS HASTA SIETE...MARTES A DOMINGO UN PATRON RELATIVAMENTE INESTABLE SE PRONOSTICA QUE PERSISTA SOBRE LA REGION HASTA POR LO MENOS EL MIERCOLES. DEBIDO A SUELOS YA SATURADOS, CUALQUIER LLUVIA FUERTE ADICIONAL PROBABLEMENTE RESULTARA INUNDACIONES URBANAS Y DE RIACHUELOS. .COMUNICADO SOBRE INFORMACION REPORTADA POR OBSERVADORES... NO SE ANTICIPA ACTIVACION AMPLIA DE OBSERVADORES, SIN EMBARGO, SE LES EXHORTA A LOS OBSERVADORES A REPORTAR INUNDACIONES Y CORRIENTES SUBMARINAS AL SERVICIO NACIONAL DE METEOROLOGIA EN SAN JUAN.
The national radar mosaic for the moment the first event began.
7 flood. Local standard time, as filed.
Urban flooding was reported at street 2, number 30 in Rio Grande Estates.
Urb. Santa Barbara was reported flooded at the end of street 3, at Selectos Supermarket entrance.
Urban flooding was reported at Valle Tolima street 7.
Urban flooding was reported at Barrio Canaboncito at road PR-172.
Villa Palmeras sector was reported flooded at Intersection with Ismael Rivera and Baldorioty de Castro.
Urban flooding was reported at road PR-857 km. 6.5 near Antiguo Parador at Barrio Canovanillas.
Three boys were swept away by Charco El Cantil at road 765, km 5.3. They were rescued.
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, November 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: 667059, 667063, 667064, 667065, 667085, 667090, 667113.