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Flash Flood Warning

Status

New Event Active alert

Start Time

Wed 12/24/2025 09:00 PM EST

End Time

Thu 12/25/2025 12:00 AM EST

Significance

Warning

Impacts

High impact

Flash floodradar indicated

Locations Affected

San Juan, PR ∙ Saint Just, PR ∙ Rio Piedras, PR ∙ Carolina, PR ∙ Fernando Luis Ribas Dominicci Airport, PR ∙ Trujillo Alto, PR ∙ San Juan L M Marin Intl Airport, PR

Full Alert Message

BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service San Juan PR 1000 PM AST Wed Dec 24 2025 The National Weather Service in San Juan has issued a * Flash Flood Warning for... Carolina County in Puerto Rico... Loiza County in Puerto Rico... San Juan County in Puerto Rico... Trujillo Alto County in Puerto Rico... * Until 100 AM AST. * At 1000 PM AST, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 2 inches of rain have fallen. Additional rainfall amounts up to 1 inch are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... San Juan, Trujillo Alto, Carolina, Guaynabo and Lomas. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. && LAT...LON 1846 6599 1844 6588 1840 6593 1827 6591 1831 6597 1830 6608 1843 6611 1844 6608 1842 6609 1843 6605 1847 6613 FLASH FLOOD...RADAR INDICATED