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FLCA42 TJSJ 090809
HWOSJU
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN JUAN PR
409 AM AST TUE SEP 9 2025
AMZ711>745-PRZ001>013-100815-
SAN JUAN AND VICINITY-NORTHEAST-SOUTHEAST-EASTERN INTERIOR-
NORTH CENTRAL-CENTRAL INTERIOR-PONCE AND VICINITY-NORTHWEST-
WESTERN INTERIOR-MAYAGUEZ AND VICINITY-SOUTHWEST-CULEBRA-VIEQUES-
THE NEARSHORE AND OFF SHORE ATLANTIC AND CARIBBEAN COASTAL WATERS-
409 AM AST TUE SEP 9 2025
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF PUERTO RICO.
DAY ONE
TODAY AND TONIGHT
LIGHTNING
ISOLATED THUNDERSTORMS, PARTICULARLY ACROSS
NORTHWEST PUERTO RICO. STAY ALERT AND BE PREPARED TO TAKE SHELTER
IF STORMS DEVELOP.
EXCESSIVE RAINFALL
FLOODING IN URBAN AREAS, ROADS, SMALL
STREAMS, AND WASHES. THERE IS A LOW CHANCE OF ISOLATED FLASH
FLOODS. ELSEWHERE, PLAN FOR WATER PONDING ON ROADS AND IN POORLY
DRAINED AREAS.
EXCESSIVE HEAT
THIS LEVEL OF HEAT AFFECTS MOST INDIVIDUALS
SENSITIVE TO HEAT, ESPECIALLY THOSE WITHOUT EFFECTIVE COOLING
AND/OR ADEQUATE HYDRATION. THOSE EXTREMELY SENSITIVE TO HEAT FACE
THE HIGHEST RISK. SOME HEALTH SYSTEMS AND HEAT-SENSITIVE
INDUSTRIES COULD BE AFFECTED.
RIP CURRENTS
LIFE-THREATENING RIP CURRENTS ARE POSSIBLE IN THE
SURF ZONE, PARTICULARLY ACROSS NORTH FACING BEACHES. ISOLATED
STRONGER RIP CURRENTS MAY OCCUR ELSEWHERE, ESPECIALLY NEAR PIERS,
JETTIES, AND CHANNELS.
DAYS TWO THROUGH SEVEN
WEDNESDAY THROUGH MONDAY
THUNDERSTORMS ARE EXPECTED TO DEVELOP EACH AFTERNOON OVER PORTIONS
OF THE INTERIOR AND WESTERN PUERTO RICO, WHICH CAN PRODUCE URBAN
AND SMALL STREAM FLOODING, LIGHTNING STRIKES, AND STRONG GUSTY
WINDS. THE EXCESSIVE HEAT THREAT WILL CONTINUE THROUGHOUT MUCH OF
THE FORECAST PERIOD ACROSS MOST COASTAL AND URBAN AREAS. A
MODERATE RISK OF RIP CURRENTS TO CONTINUE ACROSS NORTH FACING
BEACHES.
SPOTTER INFORMATION STATEMENT
SPOTTER ACTIVATION IS ENCOURAGED. PLEASE RELAY ANY INFORMATION
ABOUT FLOODING, WINDS, WAVES, AND RIP CURRENTS TO THE NATIONAL
WEATHER SERVICE IN SAN JUAN.
AMZ716-726-VIZ001-002-100815-
ST. THOMAS ST. JOHN ADJACENT ISLANDS-ST CROIX-
NEARSHORE ATLANTIC AND ADJACENT CARIBBEAN COASTAL WATERS-
409 AM AST TUE SEP 9 2025
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF USVI.
DAY ONE
TODAY AND TONIGHT
LIGHTNING
ISOLATED THUNDERSTORMS. STAY ALERT AND BE PREPARED
TO TAKE SHELTER IF STORMS DEVELOP.
EXCESSIVE RAINFALL
PONDING OF WATER IN ROADS AND POORLY
DRAINED AREAS. THERE IS A LOW CHANCE OF LOCALIZED URBAN FLOODING.
EXCESSIVE HEAT
THIS LEVEL OF HEAT AFFECTS MOST INDIVIDUALS
SENSITIVE TO HEAT, ESPECIALLY THOSE WITHOUT EFFECTIVE COOLING
AND/OR ADEQUATE HYDRATION. THOSE EXTREMELY SENSITIVE TO HEAT FACE
THE HIGHEST RISK. SOME HEALTH SYSTEMS AND HEAT-SENSITIVE
INDUSTRIES COULD BE AFFECTED.
RIP CURRENTS
LIFE-THREATENING RIP CURRENTS ARE POSSIBLE IN THE
SURF ZONE, PARTICULARLY ACROSS SAINT CROIX. ISOLATED STRONGER RIP
CURRENTS MAY OCCUR ELSEWHERE, ESPECIALLY NEAR PIERS, JETTIES, AND
CHANNELS.
DAYS TWO THROUGH SEVEN
WEDNESDAY THROUGH MONDAY
THE EXCESSIVE HEAT THREAT WILL CONTINUE THROUGHOUT MUCH OF THE
FORECAST PERIOD ACROSS MOST COASTAL AND URBAN AREAS. A MODERATE
RISK OF RIP CURRENTS TO CONTINUE ACROSS SAINT CROIX.
SPOTTER INFORMATION STATEMENT
SPOTTER ACTIVATION IS ENCOURAGED. PLEASE RELAY ANY INFORMATION
ABOUT FLOODING, WINDS, WAVES, AND RIP CURRENTS TO THE NATIONAL
WEATHER SERVICE IN SAN JUAN.
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