2 products issued by NWS for: San Juan PR
Heat Advisory
URGENT - WEATHER MESSAGE National Weather Service San Juan PR 1144 AM AST Tue Jul 15 2025 PRZ001>005-007-008-010-011-152000- /O.CON.TJSJ.HT.Y.0016.000000T0000Z-250715T2000Z/ San Juan and Vicinity-Northeast-Southeast-Eastern Interior-North Central-Ponce and Vicinity-Northwest-Mayaguez and Vicinity- Southwest- Including the cities of Luquillo, Isabela, Cayey, San Lorenzo, Cidra, Toa Baja, Rio Grande, Ponce, Hatillo, Guaynabo, Yauco, Rincon, Gurabo, Fajardo, San German, Naguabo, Caguas, Moca, Manati, Guayama, Guanica, Comerio, Barceloneta, Loiza, Las Piedras, Trujillo Alto, Lajas, Dorado, Camuy, Salinas, Catano, Arroyo, Juncos, Quebradillas, Cabo Rojo, San Juan, Mayaguez, Bayamon, Vega Alta, Ceiba, Penuelas, Yabucoa, Aguas Buenas, Santa Isabel, Carolina, Anasco, Humacao, Patillas, Canovanas, Florida, Maunabo, Vega Baja, Hormigueros, Arecibo, Guayanilla, Aguadilla, Aguada, Juana Diaz, and Toa Alta 1144 AM AST Tue Jul 15 2025 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 4 PM AST THIS AFTERNOON... * WHAT...This level of heat affect most individuals sensitive to heat, especially those without effective cooling and/or adequate hydration. Impacts possible in some health system and in heat-sensitive industries. * WHERE...Eastern Interior, Mayaguez and Vicinity, North Central, Northeast, Northwest, Ponce and Vicinity, San Juan and Vicinity, Southeast, and Southwest Counties. * WHEN...Until 4 PM AST this afternoon. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. && $$ MRR
Hazardous Weather Outlook
Hazardous Weather Outlook National Weather Service San Juan PR 436 AM AST Tue Jul 15 2025 AMZ711>745-PRZ001>013-160845- 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- 436 AM AST Tue Jul 15 2025 This Hazardous Weather Outlook is for portions of Puerto Rico. .DAY ONE...Today and Tonight .Lightning...Isolated thunderstorms, particularly across north, east and west Puerto Rico. Stay alert and be prepared to take shelter if storms develop. .Excessive Rainfall...Flooding in urban areas, roads, small streams, and washes, particularly across western Puerto Rico. 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 all coastal and urban areas of Puerto Rico. .Wind...Breezy conditions (18-22 kts | 21-25 mph), particularly across northern and southwestern Puerto Rico. Unsecured items could blow around. .Marine Conditions...Small craft should exercise caution, particularly across the Atlantic waters. .Rip Currents...Life-threatening rip currents are possible in the surf zone, particularly across beaches of north, east, southeast Puerto Rico, Culebra and Vieques. Isolated stronger rip currents may occur elsewhere, especially near piers, jetties, and channels. .DAYS TWO THROUGH SEVEN...Wednesday through Monday An elevated excessive heat threat will continue through Friday across most lower elevations of PR. Isolated thunderstorms are expected each afternoon over portions of the interior and western PR. Breezy conditions and a moderate risk of rip currents will prevail through the workweek. A tropical wave is expected to increase shower and thunderstorm activity by midweek. A dense Saharan Air Layer will return on Thursday, promoting hazy skies and reduced visibilities through the weekend. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed. $$