One product issued by NWS for: 51NM N San Juan PR
Hazardous Weather Outlook
Hazardous Weather Outlook National Weather Service San Juan PR 500 AM AST Sun Jul 20 2025 AMZ711>745-PRZ001>013-210900- 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- 500 AM AST Sun Jul 20 2025 This Hazardous Weather Outlook is for portions of Puerto Rico. .DAY ONE...Today and Tonight .Lightning...Isolated thunderstorms, particularly across interior into western and northwestern sections. 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 western and northwestern section. 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 lower elevation areas. .Rip Currents...Life-threatening rip currents are possible in the surf zone, particularly across Culebra. Isolated stronger rip currents may occur elsewhere, especially near piers, jetties, and channels. .DAYS TWO THROUGH SEVEN...Monday through Saturday A limited to elevated risk of heat will persist for the next few days. Showers and isolated thunderstorms are likely almost every day, mainly over western/northwestern sectors. A robust tropical wave could bring a wet and unstable weather around Friday. Increasing winds will elevate rip current risk and spread across northern and eastern beaches including Vieques and Culebra. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed. $$