Strong thunderstorms developed over the western interior section of Puerto Rico as an upper level trough combined with strong daytime heating and local effects.
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.
Strong thunderstorms developed over the western interior section of Puerto Rico as an upper level trough combined with strong daytime heating and local effects.
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 28, 2:11 PM AST, 1 hour 30 minutes earlier.
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</html>PERSPECTIVAS SOBRE CONDICIONES PELIGROSAS DEL TIEMPO SERVICIO NACIONAL DE METEOROLOGIA SAN JUAN PR 149 PM AST JUEVES 28 DE JULIO DE 2016 AMZ710>745-PRZ001>013-291800- 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- 149 PM AST JUEVES 28 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 DE TRONADAS CON LLUVIA FUERTE Y RAFAGAS DE VIENTOS ESTA TARDE A TRAVES DE PORCIONES DEL OESTE E INTERIOR DE PUERTO RICO. TRONADAS INTENSAS SOBRE EL OESTE DE PUERTO RICO PUDIERAN PRODUCIR GRANIZO PEQUENO Y RAFAGAS DE VIENTOS FUERTES. .INUNDACIONES...LLUVIAS FUERTES PUDIERAN RESULTAR EN INUNDACIONES URBANAS Y RIACHUELOS EN EL OESTE E INTERIOR DE PUERTO RICO. .CORRIENTES SUBMARINAS...EXISTE UN RIESGO MODERADO DE CORRIENTES SUBMARINAS A TRAVES DE ALGUNAS DE LAS PLAYAS DEL NORTE DE PUERTO RICO. .CALOR...INDICE DE CALOR DE 102 GRADOS O MAS ES POSIBLE MAYORMENTE A TRAVES DE LAS AREAS COSTERAS DEL OESTE Y NORTE DE PUERTO RICO. .DIAS DOS HASTA SIETE...VIERNES A MIERCOLES CONDICIONES INESTABLES CONTINUARAN A TRAVES DE LAS ISLAS TARDE EL VIERNES A MEDIDA QUE UNA VAGUADA EN LOS NIVELES ALTOS SE RELOCALIZE SOBRE LA REGION. UNA ONDA TROPICAL SE PRONOSTICA QUE ALCANCE LA REGION LOCAL EL DOMINGO EN LA TARDE Y LUNES. ESTO PROMOVERA SIGNIFICANTEMENTE EL DESARROLLO DE AGUACEROS Y TRONADAS A TRAVES DE LAS ISLAS. .COMUNICADO SOBRE INFORMACION REPORTADA POR OBSERVADORES... NO SE ANTICIPA ACTIVACION AMPLIA DE OBSERVADORES...SIN EMBARGO...SE LES EXHORTA A LOS OBSERVADORES INDIVIDUALES A REPORTAR INUNDACIONES Y CORRIENTES SUBMARINAS AL SERVICIO NACIONAL DE METEOROLOGIA EN SAN JUAN. AMZ715-725-VIZ001-002-291800- SAN TOMAS SAN JOHN E ISLAS ADYACENTES- SANTA CRUZ-AGUAS CERCA DE LA COSTA DEL ATLANTICO Y AGUAS COSTERAS ADYACENTES DEL CARIBE- 149 PM AST JUEVES 28 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...ESTA TARDE Y NOCHE .CALOR...INDICES DE CALOR DE 102 GRADOS SON POSIBLES EN LAS AREAS COSTERAS DEL SUR DE SANTA CRUZ. .DIAS DOS A SIETE...VIERNES A MIERCOLES CONDICIONES INESTABLES CONTINUARAN A TRAVES DE LAS ISLAS TARDE EL VIERNES A MEDIDA QUE UNA VAGUADA EN LOS NIVELES ALTOS SE RELOCALIZE SOBRE LA REGION. UNA ONDA TROPICAL SE PRONOSTICA QUE ALCANCE LA REGION LOCAL EL DOMINGO EN LA TARDE Y LUNES. ESTO PROMOVERA SIGNIFICANTEMENTE EL DESARROLLO DE AGUACEROS Y TRONADAS A TRAVES DE LAS ISLAS. .COMUNICADO SOBRE INFORMACION REPORTADA POR OBSERVADORES... NO SE ANTICIPA ACTIVACION AMPLIA DE OBSERVADORES...SIN EMBARGO...SE LES EXHORTA A LOS OBSERVADORES INDIVIDUALES A REPORTAR INUNDACIONES Y CORRIENTES SUBMARINAS AL SERVICIO NACIONAL DE METEOROLOGIA EN SAN JUAN.
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</html>The San Juan radar (TJUA), 71 km away, was scanning. The volume nearest the first event began at 19:42 UTC.
1 hail. Local standard time, as filed.
Marble size hail was reported in the municipality of Adjuntas.
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, July 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: 654378.