Hazardous Weather Outlook
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
170 FLCA42 TJSJ 130812 HWOSJU Hazardous Weather Outlook National Weather Service San Juan PR 412 AM AST Mon May 13 2024 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- 412 AM AST Mon May 13 2024 This Hazardous Weather Outlook is for portions of Puerto Rico. .DAY ONE...Today and Tonight .Lightning...Isolated thunderstorms are possible, mainly across northwestern sections this afternoon. 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 108-111 degrees across western, northern, and eastern sections of Puerto Rico, where heat exhaustion is likely and heat stroke is possible with prolonged exposure. Heat index 102-107 degrees across most remaining coastal and other urban areas, where heat exhaustion is possible with prolonged exposure. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday The excessive rainfall and lightning hazards risk are likely each day, particularly from the typical afternoon showers and isolated thunderstorm development. With plenty of moisture across the region, heat indices could surpass 102 degrees Fahrenheit each day, with localized areas experiencing 108-110 degrees. A moderate rip current risk is likely on Tuesday and Saturday. Lingering Saharan dust will persist throughout the period. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed. $$ AMZ716-726-VIZ001-002-141000- St. Thomas St. John adjacent Islands-St Croix- Nearshore Atlantic and adjacent Caribbean Coastal Waters- 412 AM AST Mon May 13 2024 This Hazardous Weather Outlook is for portions of USVI. .DAY ONE...Today and Tonight .Excessive Heat...Heat index 108-111 degrees across St Croix, where heat exhaustion is likely and heat stroke is possible with prolonged exposure. Heat index 102-107 degrees across St Thomas and St John, where heat exhaustion is possible with prolonged exposure. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday With plenty of moisture across the region, heat indices could surpass 102 degrees Fahrenheit each day, with localized areas experiencing 108-110 degrees. A moderate rip current risk is likely on Saturday. Lingering Saharan dust will persist throughout the period. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed. $$