Flood, Naguabo
- When
- May 1, 4:27 PM AST to 5:45 PM AST
- Where
- Naguabo County, Naguabo to 0.52 mi ESE of Naguabo
- Cause
- Heavy Rain
- Reported by
- Emergency Manager
- Coordinates
- 18.220, -65.730
Flooding was reported at sector Pitina at Road PR-31.
Flood in Puerto Rico, May 1, 2016
Upper level trough combined with daytime heating and a moist southeasterly wind flow to produce scattered showers with thunderstorms over eastern portions of Puerto Rico.
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
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 1
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.
Upper level trough combined with daytime heating and a moist southeasterly wind flow to produce scattered showers with thunderstorms over eastern portions of Puerto Rico.
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 May 1, 2:06 PM AST, 2 hours 21 minutes earlier.
Area forecast discussion, May 1, 2:06 PM AST, 2 hours 21 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SAN JUAN PR 206 PM AST SUN MAY 1 2016 .SYNOPSIS...UPPER LEVEL TROUGH LOCATED OVER PUERTO RICO HAS BEEN ENHANCING THE INSTABILITY AND MOISTURE TRANSPORT OVER PUERTO RICO AND THE U.S. VIRGIN ISLANDS DURING THE WEEKEND. THE TROUGH ALOFT WILL WEAKEN THROUGH MIDWEEK. ALTHOUGH...A RELATIVELY UNSTABLE PATTERN WILL PERSIST MOST OF THE WEEK...DRIER AIR AT MID LEVELS WILL LIMIT THE COVERAGE OF THE SHOWER AND THUNDERSTORM ACTIVITY. && .DISCUSSION...HIGH CONVECTIVE INSTABILITY ASSOCIATED WITH AN UPPER TROUGH OVER PUERTO RICO HAS RESULTED IN THE DEVELOPMENT SHOWERS AND ISOLATED STRONG THUNDERSTORMS OVER MOST OF THE FORECAST AREA. INTENSE RAINFALL WAS OBSERVED THIS MORNING OVER PORTIONS OF THE WEST AND EAST THIRD OF PR. RAINFALL ACCUMULATIONS OF 1-3 INCHES WERE ESTIMATED BY THE DOPPLER RADAR ACROSS THE WEST...WESTERN INTERIOR AND NORTHEAST PR. OPERATIONAL MODELS NOW SUGGEST THAT THE WEATHER CONDITIONS WILL IMPROVE GRADUALLY THROUGH THURSDAY. AS UPPER TROUGH WEAKENS AND DRIER AIR WILL FILTER IN AT MID LEVELS...THE CONVECTIVE INSTABILITY WILL LIKELY DECREASE OVER THE LOCAL AREA. ALTHOUGH...SHOWERS AND THUNDERSTORMS ARE STILL EXPECTED OVER PORTIONS OF THE INTERIOR...NORTH AND NORTHWEST PR EACH AFTERNOON...THE SHOWER AND THUNDERSTORM COVERAGE WILL DECREASE THROUGH AT LEAST MIDWEEK. MAX TEMPERATURES WILL INCREASE SOMEWHAT ACROSS THE LOCAL ISLANDS AS SOUTHEASTERLY FLOW AND LESS CLOUDINESS ARE EXPECTED OVER THE NEXT COUPLE OF DAYS. MAX TEMPS WILL RANGE FROM THE UPPER 80S TO LOW 90S...ESPECIALLY ALONG THE NORTH COASTAL PLAINS. && .AVIATION...PERIODS OF MVFR CONDS OR EVEN IFR CONDS WILL REMAIN POSSIBLE AT THE USVI TERMINALS AS WELL AS JBQ/JMZ/JSJ IN SHRA/TSRA DEVELOPMENT THROUGH ABOUT 01/22Z. ELSEWHERE...MAINLY VFR CONDS. AFTER 01/22Z...VCSH IN AND AROUND THE LEEWARD...USVI AND JSJ TERMINALS. SOUTHEAST WINDS AT 5 TO 10 KT...BECOMING LIGHT AND VARIABLE OVERNIGHT. && .MARINE...WINDS OF 5 TO 15 KNOTS AND SEAS OF 3 TO 5 FEET RESPECTIVELY. MAIN HAZARD FOR MARINERS TODAY IS THE THUNDERSTORMS OVER THE REGIONAL WATERS...ESPECIALLY NEAR USVI...AND NORTHEAST PUERTO RICO. NO SMALL CRAFT ADVISORIES ARE ANTICIPATED OVER THE NEXT 5-7 DAYS. && .PRELIMINARY POINT TEMPS/POPS... SJU 77 88 76 88 / 30 30 40 30 STT 78 87 76 87 / 50 50 50 30 && .SJU WATCHES/WARNINGS/ADVISORIES... PR...NONE. VI...NONE. AM...NONE. && 23/11
Hazardous weather outlook, May 1, 6:37 AM AST, 9 hours 50 minutes before
PERSPECTIVAS SOBRE CONDICIONES PELIGROSAS DEL TIEMPO SERVICIO NACIONAL DE METEOROLOGIA SAN JUAN PR 620 AM AST DOMINGO 1 DE MAYO DE 2016 AMZ710>745-PRZ001>013-021030- 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- 620 AM AST DOMINGO 1 DE MAYO DE 2016 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 .TRONADAS...EXISTE UNA POSIBILIDAD DE TRONADAS CON LLUVIAS FUERTES Y BREVES VIENTOS EN RAFAGAS A TRAVES DE PORCIONES DE PUERTO RICO. SE ESPERAN TRONADAS INTENSAS A TRAVES DE SECTORES DEL INTERIOR Y OESTE DURANTE ESTA TARDE. .INUNDACIONES...FUERTES LLUVIAS CAUSARAN INUNDACIONES URBANAS Y PEQUENOS RIACHUELOS. LOS SUELOS PERMANECEN SATURADOS...POR TAL RAZON...LLUVIAS ADICIONALES PODRAN PRODUCIR INUNDACIONES Y DESLIZAMIENTOS CERCA DE TERRENO EMPINADO. .OLAS...OLEAJE DE HASTA 5 PIES SE ESPERA A TRAVES DE LAS AGUAS MAR AFUERA. .CORRIENTES SUBMARINAS...EXISTE UN RIESGO MODERADO DE CORRIENTES SUBMARINAS PARA ALGUNAS DE LAS PLAYAS DEL NORTE...SUR...ESTE... VIEQUES Y CULEBRA. .DIAS DOS HASTA SIETE...LUNES A SABADO CONDICIONES HUMEDAS E INESTABLES CONTINUAN HASTA POR LO MENOS MEDIADOS DE SEMANA. COMO RESULTADO...EL POTENCIAL DE AGUACEROS Y TRONADAS CON PERIODOS DE FUERTES LLUVIAS PERMANECE ALTO. .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-VIZ001-002-021030- SAN TOMAS SAN JOHN E ISLAS ADYACENTES- SANTA CRUZ-AGUAS CERCA DE LA COSTA DEL ATLANTICO Y AGUAS COSTERAS ADYACENTES DEL CARIBE- 620 AM AST DOMINGO 1 DE MAYO 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 POSIBILIDAD DE TRONADAS CON LLUVIAS FUERTES Y BREVES VIENTOS EN RAFAGAS A TRAVES DE PORCIONES DE LAS ISLAS DURANTE EL DIA DE HOY. .INUNDACIONES...FUERTES LLUVIAS PODRIAN DAR PASO A INUNDACIONES URBANAS Y PEQUENOS RIACHUELOS. .OLAS...OLEAJE DE HASTA 5 PIES SE ESPERA A TRAVES DE LAS AGUAS MARAFUERA. .CORRIENTES SUBMARINAS...EXISTE UN RIESGO MODERADO DE CORRIENTES SUBMARINAS PARA ALGUNAS DE LAS PLAYAS DE SANTA CRUZ. .DIAS DOS HASTA SIETE...LUNES A SABADO CONDICIONES HUMEDAS E INESTABLES CONTINUAN HASTA POR LO MENOS MEDIADOS DE SEMANA. COMO RESULTADO...EL POTENCIAL DE AGUACEROS Y TRONADAS CON PERIODOS DE FUERTES LLUVIAS PERMANECE ALTO. .COMUNICADO SOBRE INFORMACION REPORTADA POR OBSERVADORES... NO SE ANTICIPA ACTIVACION AMPLIA DE OBSERVADORES...SIN EMBARGO...SELES EXHORTA A LOS OBSERVADORES INDIVIDUALES A REPORTAR CORRIENTESSUBMARINAS AL SERVICIO NACIONAL DE METEOROLOGIA EN SAN JUAN. CAM/COLON-PAGAN
The radar
The national radar mosaic for the moment the first event began.
Event by event
1 flood. Local standard time, as filed.
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
- High Wind in Utah, May 1, 2016
- Flash Flood and Hail in Kentucky, May 1, 2016
- Flash Flooding and Hail in West Virginia, May 1 to 2, 2016
- Hail and Damaging Winds in North Carolina, May 1, 2016
- Drought in Guam, May 1 to 31, 2016
- Flash Flood and Hail in Kentucky, May 1, 2016
- Flooding in Iowa, May 1 to 9, 2016
- Flash Flooding and Hail in Louisiana, May 1, 2016
- Hail and Damaging Winds in Kentucky, May 1, 2016
- Hail and Damaging Winds in Illinois, May 1, 2016
- Flash Flooding and Flooding in Kentucky, May 1, 2016
- Damaging Winds in Mississippi, May 1, 2016
More
Every storm in Puerto Rico in 2016Every state in 2016This day in weather historyWarnings in Puerto Rico, May 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: 640304.