Puerto Rico Flash Flood Warning | Effective 04/17/2026 10:40

Headline: 
Flash Flood Warning issued April 17 at 1:40PM AST until April 17 at 4:45PM AST by NWS San Juan PR
Event: 
Flash Flood Warning
Urgency: 
Immediate
Effective: 
April 17, 2026 - 10:40am
Expires: 
April 17, 2026 - 1:45pm
Description: 
FFWSJU The National Weather Service in San Juan has issued a * Flash Flood Warning for... Northern Cabo Rojo County in Puerto Rico... Hormigueros County in Puerto Rico... Eastern Mayaguez County in Puerto Rico... San German County in Puerto Rico... * Until 445 PM AST. * At 140 PM AST, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 2.5 inches of rain have fallen. Additional rainfall amounts of 1 to 2 inches 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... Hormigueros, San German, Cabo Rojo, Mayaguez, Sabana Grande, Monte Grande, Puerto Real and Sabana Eneas.
Instruction: 
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
Area Description: 
Cabo Rojo, PR; Hormigueros, PR; Mayaguez, PR; San German, PR
Forcast Office: 
NWS San Juan PR