Hazardous Weather Outlook
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
790 FLCA42 TJSJ 170919 HWOSJU Hazardous Weather Outlook National Weather Service San Juan PR 519 AM AST Thu Apr 17 2025 AMZ711>745-PRZ001>013-180930- 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- 519 AM AST Thu Apr 17 2025 This Hazardous Weather Outlook is for portions of Puerto Rico. .DAY ONE...Today and Tonight .Lightning...Isolated thunderstorms, particularly across the islands. Stay alert and be prepared to take shelter if storms develop. .Excessive Rainfall...Flooding in urban areas, roads, small streams, and washes, particularly across northwestern and northern 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 the western and northern sections. .Rip Currents...Life-threatening rip currents are possible in the surf zone, particularly across northern PR and Culebra. Isolated stronger rip currents may occur elsewhere, especially near piers, jetties, and channels. .DAYS TWO THROUGH SEVEN...Friday through Wednesday The flood and lightning threat will remain through Saturday due to the presence of moisture and an approaching trough. Marine and coastal conditions will deteriorate as a weak northerly swell combines with windy conditions. .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. $$ AMZ716-726-VIZ001-002-180930- St. Thomas St. John adjacent Islands-St Croix- Nearshore Atlantic and adjacent Caribbean Coastal Waters- 519 AM AST Thu Apr 17 2025 This Hazardous Weather Outlook is for portions of USVI. .DAY ONE...Today and Tonight .Lightning...Isolated thunderstorms, particularly across the islands. Stay alert and be prepared to take shelter if storms develop. .Excessive Rainfall...Ponding of water in roads and poorly drained areas, particularly over St. Thomas and St. John. There is a low chance of localized urban and small streams flooding. .Rip Currents...Life-threatening rip currents are possible in the surf zone, particularly across St. Thomas and St. John. Isolated stronger rip currents may occur elsewhere, especially near piers, jetties, and channels. .DAYS TWO THROUGH SEVEN...Friday through Wednesday The flood and lightning threat will remain through Saturday due to the presence of moisture and an approaching trough. Marine and coastal conditions will deteriorate as a weak northerly swell combines with windy conditions. .SPOTTER INFORMATION STATEMENT... Spotter activation is encouraged. Please relay any information about flooding, winds, waves, and rip currents to the National Weather Service in San Juan. $$