


Hazardous Weather Outlook
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
078 FLCA42 TJSJ 090916 HWOSJU Hazardous Weather Outlook National Weather Service San Juan PR 516 AM AST Thu Oct 9 2025 AMZ711>745-PRZ001>013-100930- 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 Thu Oct 9 2025 This Hazardous Weather Outlook is for portions of Puerto Rico. .DAY ONE...Today and Tonight .Lightning...Isolated thunderstorms, particularly across the northern, interior and western sectors. Stay alert and be prepared to take shelter if storms develop. .Excessive Rainfall...Flooding in urban areas, roads, small streams, and washes, particularly across northern, interior and western sectors. 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. These conditions are most likely across urban and coastal areas. .Marine Conditions...Hazardous conditions for small craft in areas with seas of 7 feet or higher, particularly across the eastern offshore Atlantic waters and Anegada Passage. .Rip Currents...Life-threatening rip currents are possible in the surf zone, particularly across northern, eastern, and southeastern beaches, also Vieques and Culebra. Isolated stronger rip currents may occur elsewhere, especially near piers, jetties, and channels. .DAYS TWO THROUGH SEVEN...Friday through Wednesday Limited to elevated flooding risk is forecast during the next few days. The National Hurricane Center (NHC) continues monitoring Tropical Storm Jerry. This system is expected to move northeast of our area by Friday as a Hurricane. Hazardous marine and coastal conditions are forecast to return tonight through Saturday. Heat risks will also possibly continue as Jerry promotes southerly flow through at least early Sunday. Residents and visitors should remain informed and monitor official updates from the National Hurricane Center and our local office. .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. $$ AMZ716-726-VIZ001-002-100930- St. Thomas St. John adjacent Islands-St Croix- Nearshore Atlantic and adjacent Caribbean Coastal Waters- 516 AM AST Thu Oct 9 2025 This Hazardous Weather Outlook is for portions of USVI. .DAY ONE...Today and Tonight .Lightning...Isolated thunderstorms. Stay alert and be prepared to take shelter if storms develop. .Excessive Heat...This level of heat affects most individuals sensitive to heat, especially those without effective cooling and/or adequate hydration. Those extremely sensitive to heat face the highest risk. Some health systems and heat-sensitive industries could be affected. .Marine Conditions...Hazardous conditions for small craft in areas with seas of 7 feet or higher, particularly across the eastern offshore Atlantic waters and Anegada Passage. .Rip Currents...Life-threatening rip currents are possible in the surf zone. Isolated stronger rip currents may occur elsewhere, especially near piers, jetties, and channels. .DAYS TWO THROUGH SEVEN...Friday through Wednesday Limited to elevated flooding risk is forecast during the next few days. The National Hurricane Center (NHC) continues monitoring Tropical Storm Jerry. This system is expected to move northeast of our area by Friday as a Hurricane. Hazardous marine and coastal conditions are forecast to return tonight through Saturday. Heat risks will also possibly continue as Jerry promotes southerly flow through at least early Sunday. Residents and visitors should remain informed and monitor official updates from the National Hurricane Center and our local office. .SPOTTER INFORMATION STATEMENT... Spotter activation is encouraged. Please relay any information about flooding, winds, waves, and rip currents to the National Weather Service in San Juan. $$