Puerto Rico Flash Flood Warning Severe | Effective 04-16-2026 12:39

Headline: 
Flash Flood Warning issued April 16 at 3:39PM AST until April 16 at 5:00PM AST by NWS San Juan PR
Event: 
Flash Flood Warning
Urgency: 
Immediate
Effective: 
April 16, 2026 - 12:39pm
Expires: 
April 16, 2026 - 2:00pm
Description: 
At 339 PM AST, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 3 and 7 inches of rain have fallen. Additional rainfall amounts of 1 to 2.5 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding. SOURCE...Radar. IMPACT...Life threatening flash flooding of creeks and streams, urban areas, highways, streets and underpasses. Some locations that will experience flash flooding include... San Lorenzo, Juncos, Las Piedras, La Fermina, Jagual, El Mango and Pueblito Del Rio. PR-936 in Las Piedras was closed due to flooding. Flooding was reported along several areas of PR-936 including low water crossings (Quebrada HOnda) and near Urb. Villa Las Piedras
Instruction: 
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads. 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.
SNM: AVISO DE INUNDACIONES REPENTINAS hasta 5:00 PM AST. Evite areas inundadas.
Servicio Nacional de Meteorologia: AVISO DE INUNDACIONES REPENTINAS en efecto para esta area hasta las 5:00 PM AST. Esta es una situacion peligrosa y amenaza la vida. No intente viajar a menos que sea para abandonar un area propensa a inundaciones o bajo una orden de desalojo.
Area Description: 
Juncos, PR; Las Piedras, PR; San Lorenzo, PR
Forcast Office: 
NWS San Juan PR
Sender: 
w-nws.webmaster@noaa.gov