


Hazardous Weather Outlook
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
123 FLCA42 TJSJ 130922 HWOSJU Hazardous Weather Outlook National Weather Service San Juan PR 522 AM AST Mon Oct 13 2025 AMZ711>745-PRZ001>013-141000- 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- 522 AM AST Mon Oct 13 2025 This Hazardous Weather Outlook is for portions of Puerto Rico. .DAY ONE...Today and Tonight .Lightning...Isolated to scattered thunderstorms, particularly across the San Juan metropolitan area and western sections. Be prepared to stop all outdoor activities and seek shelter if storms develop. .Excessive Rainfall...Flooding in urban areas, roads, small streams, and washes, particularly across western sections. 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 primarily those individuals extremely sensitive to heat, especially when outdoors without effective cooling and/or adequate hydration. These conditions are most likely across all coastal and urban areas. .Wind...Breezy conditions (18-22 kts | 21-25 mph), particularly across southwestern sections. Unsecured items could blow around. .Rip Currents...Life-threatening rip currents are possible in the surf zone, particularly across northern and eastern Puerto Rico and Culebra. Isolated stronger rip currents may occur elsewhere, especially near piers, jetties, and channels. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday Daily afternoon thunderstorms will bring a limited to elevated risk of flooding and lightning, mainly but not limited to western and northern Puerto Rico. In addition, the proximity and arrival of a frontal boundary and an associated pre-frontal trough mid-to- later in the week will support more widespread and longer-lasting shower and thunderstorm activity, further increasing the flood and lightning threat. An elevated heat threat will persist through the workweek, while a moderate rip current risk continues along northern and eastern beaches. However, long-period northerly swells arriving this weekend will significantly worsen marine and coastal conditions, leading to hazardous to potentially life- threatening surf and rip currents. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed. $$ AMZ716-726-VIZ001-002-141000- St. Thomas St. John adjacent Islands-St Croix- Nearshore Atlantic and adjacent Caribbean Coastal Waters- 522 AM AST Mon Oct 13 2025 This Hazardous Weather Outlook is for portions of USVI. .DAY ONE...Today and Tonight .Excessive Heat...This level of heat affects primarily those individuals extremely sensitive to heat, especially when outdoors without effective cooling and/or adequate hydration. .Rip Currents...Life-threatening rip currents are possible in the surf zone. Isolated stronger rip currents may occur elsewhere, especially near piers, jetties, and channels. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday The proximity and arrival of a frontal boundary and an associated pre- frontal trough mid-to-later in the week will support more widespread and longer-lasting shower and thunderstorm activity, further increasing the flood and lightning threat. An elevated heat threat will persist through the workweek, while a moderate rip current risk continues along northern and eastern beaches. However, long- period northerly swells arriving this weekend will significantly worsen marine and coastal conditions, leading to hazardous to potentially life- threatening surf and rip currents. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed. $$