


Flash Flood Watch
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
177 WGCA62 TJSJ 180902 FFASJU URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service San Juan PR 502 AM AST Mon Aug 18 2025 .As Hurricane Erin continues to move away from the islands, remnants moisture will continue to bring showers and thunderstorms across the islands. We are expecting 1 to 2 additional inches, with isolated amounts up to 4 inches possible. Conditions will gradually improve by tonight. PRZ001>013-VIZ001-002-182000- /O.CON.TJSJ.FA.A.0002.000000T0000Z-250819T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ San Juan and Vicinity-Northeast-Southeast-Eastern Interior-North Central-Central Interior-Ponce and Vicinity-Northwest-Western Interior-Mayaguez and Vicinity-Southwest-Culebra-Vieques- St.Thomas...St. John...and Adjacent Islands-St Croix- Including the cities of Bayamon, Naranjito, Salinas, Adjuntas, Ponce, Maunabo, Las Piedras, Gurabo, Toa Alta, Charlotte Amalie East, Fajardo, Guayanilla, Rincon, Arroyo, Barranquitas, Hormigueros, Isabela, Naguabo, Aguas Buenas, Culebra, Ceiba, Frederiksted Southeast, Guanica, Trujillo Alto, Patillas, Quebradillas, Rio Grande, Hatillo, Mayaguez, San Lorenzo, Morovis, San German, Vieques, Cabo Rojo, Anna`s Retreat, Grove Place, Manati, Humacao, Lares, Vega Baja, Cidra, San Juan, Aguadilla, Las Marias, Juana Diaz, Christiansted, Guaynabo, Vega Alta, Toa Baja, Dorado, Guayama, Jayuya, Cayey, Sabana Grande, Aguada, Yabucoa, Lajas, Luquillo, Arecibo, Penuelas, San Sebastian, Cruz Bay, Juncos, Charlotte Amalie, Yauco, Canovanas, Barceloneta, Loiza, Catano, Coamo, Charlotte Amalie West, Frederiksted, Carolina, Anasco, Camuy, Ciales, Aibonito, Caguas, Utuado, Maricao, Florida, Villalba, Orocovis, Moca, Corozal, Santa Isabel, and Comerio 502 AM AST Mon Aug 18 2025 ...FLOOD WATCH REMAINS IN EFFECT THROUGH THIS EVENING... * WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...All of Puerto Rico and the Virgin Islands. * WHEN...Through this evening. * IMPACTS...Flooding may occur in poor drainage and urban areas. Low-water crossings may be flooded. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. && $$ ERG