698
FLCA42 TJSJ 100836
HWOSJU
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN JUAN PR
436 AM AST WED SEP 10 2025
AMZ711>745-PRZ001>013-110845-
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-
436 AM AST WED SEP 10 2025
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF PUERTO RICO.
DAY ONE
TODAY AND TONIGHT
LIGHTNING
ISOLATED THUNDERSTORMS, PARTICULARLY ACROSS
PORTIONS OF CENTRAL AND NORTHERN PR. STAY ALERT AND BE PREPARED
TO TAKE SHELTER IF STORMS DEVELOP.
EXCESSIVE RAINFALL
FLOODING IN URBAN AREAS, ROADS, SMALL
STREAMS, AND WASHES, PARTICULARLY ACROSS THE NORTH-CENTAL AND
NORTHWESTERN PR. 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 |THE NORTH AND EASTERN BEACHES OF
PR. ISOLATED STRONGER RIP CURRENTS MAY OCCUR ELSEWHERE, ESPECIALLY
NEAR PIERS, JETTIES, AND CHANNELS.
DAYS TWO THROUGH SEVEN
THURSDAY THROUGH TUESDAY
A DRIER AIRMASS IS EXPECTED TO REACH THE REGION ON THURSDAY
THROUGH THE WEEKEND, ALONG WITH LOW TO MODERATE CONCENTRATIONS OF
SAHARAN DUST PARTICLES. 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 WILL NOT BE NEEDED.
AMZ716-726-VIZ001-002-110845-
ST. THOMAS ST. JOHN ADJACENT ISLANDS-ST CROIX-
NEARSHORE ATLANTIC AND ADJACENT CARIBBEAN COASTAL WATERS-
436 AM AST WED SEP 10 2025
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF USVI.
DAY ONE
TODAY AND TONIGHT
EXCESSIVE RAINFALL
PONDING OF WATER IN ROADS AND POORLY
DRAINED AREAS. THERE IS A LOW CHANCE OF LOCALIZED URBAN AND SMALL
STREAMS 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 ST. CROIX. ISOLATED STRONGER RIP
CURRENTS MAY OCCUR ELSEWHERE, ESPECIALLY NEAR PIERS, JETTIES, AND
CHANNELS.
DAYS TWO THROUGH SEVEN
THURSDAY THROUGH TUESDAY
A DRIER AIRMASS IS EXPECTED TO REACH THE REGION ON THURSDAY
THROUGH THE WEEKEND, ALONG WITH LOW TO MODERATE CONCENTRATIONS OF
SAHARAN DUST PARTICLES. 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 WILL NOT BE NEEDED.
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