Puerto Rico Flash Flood Warning | Effective 04/17/2026 10:38

Headline: 
Flash Flood Warning issued April 17 at 1:38PM AST until April 17 at 4:45PM AST by NWS San Juan PR
Event: 
Flash Flood Warning
Urgency: 
Immediate
Effective: 
April 17, 2026 - 10:38am
Expires: 
April 17, 2026 - 1:45pm
Description: 
FFWSJU The National Weather Service in San Juan has issued a * Flash Flood Warning for... Aguada in Puerto Rico... Moca in Puerto Rico... San Sebastian in Puerto Rico... * Until 445 PM AST. * At 138 PM AST, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 2 and 3 inches of rain have fallen. Additional rainfall amounts of 1 to 3 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.
Instruction: 
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Please report observed flooding to local emergency services or law enforcement and request they pass this information to the National Weather Service when you can do so safely.
Area Description: 
Aguada, PR; Moca, PR; San Sebastian, PR
Forcast Office: 
NWS San Juan PR