Hazardous Weather Outlook
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
179 FLCA42 TJSJ 300916 HWOSJU Hazardous Weather Outlook National Weather Service San Juan PR 516 AM AST Sat Aug 30 2025 AMZ711>745-PRZ001>013-310930- 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- 516 AM AST Sat Aug 30 2025 This Hazardous Weather Outlook is for portions of Puerto Rico. .DAY ONE...Today and Tonight .Lightning...Isolated thunderstorms, particularly across Puerto Rico. Stay alert and be prepared to take shelter if storms develop. .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. These conditions are most likely across the low and urban areas of Puerto Rico. .DAYS TWO THROUGH SEVEN...Sunday through Friday Heat threats will remain the primary concern throughout the Labor Day Weekend, while the risk of localized flooding and lightning strikes will persist each day (particularly during the afternoons). Low marine and coastal risks are forecast through Wednesday. .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. $$ AMZ716-726-VIZ001-002-310930- St. Thomas St. John adjacent Islands-St Croix- Nearshore Atlantic and adjacent Caribbean Coastal Waters- 516 AM AST Sat Aug 30 2025 This Hazardous Weather Outlook is for portions of USVI. .DAY ONE...Today and Tonight .Excessive Heat...This level of heat affects most individuals sensitive to heat, especially those without effective cooling and/or adequate hydration. Those extremely sensitive to heat face the highest risk. Some health systems and heat-sensitive industries could be affected. These conditions are most likely across Saint Thomas, Saint John, Saint Croix. .DAYS TWO THROUGH SEVEN...Sunday through Friday Heat threats will remain the primary concern throughout the Labor Day Weekend, while the risk of localized flooding and lightning strikes will persist each day (particularly during the afternoons). Low marine and coastal risks are forecast through Wednesday. .SPOTTER INFORMATION STATEMENT... Spotter activation is encouraged. Please relay any information about flooding, winds, waves, and rip currents to the National Weather Service in San Juan. $$