One product issued by NWS for: 25NM WNW San Juan PR
Hazardous Weather Outlook
Hazardous Weather Outlook National Weather Service San Juan PR 432 AM AST Tue May 21 2024 AMZ711>745-PRZ001>013-220845- 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- 432 AM AST Tue May 21 2024 This Hazardous Weather Outlook is for portions of Puerto Rico. .DAY ONE...Today and Tonight .Lightning...Isolated thunderstorms possible mainly across northwestern Puerto Rico during the afternoon hours. Be aware of thunderstorms in your area and be prepared to take shelter. .Excessive Rainfall...Flooding of urban areas, roads, small streams, and washes. Isolated flash floods possible. .Excessive Heat...Heat index 112-114 degrees across coastal areas of southwestern to northwestern to San Juan metro area. Hot conditions are expected for the rest of the coastal zones as well. Heat exhaustion or heat stroke likely with prolonged exposure. .Rip Currents...Life-threatening rip currents are possible in the surf zone particularly southwestern PR. .DAYS TWO THROUGH SEVEN...Wednesday through Monday A deep layered trough moving across the Caribbean Basin will cause conditions to deteriorate with heavy showers and thunderstorms across most of the area through into the weekend. Flooding remains the greatest threat throughout this time. On Wednesday night through Thursday winds will strengthen, bringing hazardous marine conditions for the southwestern regional waters and a moderate risk of rip currents for most beaches. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed. $$