NWS San Juan PRFF.W 0022April 18, 2026
Flash Flood Warning: Juana Diaz and Ponce, PR
The National Weather Service office in San Juan issued a flash flood warning for Juana Diaz and Ponce in Puerto Rico, which was in force until 7:45 p.m. local time on April 18. It was the 22nd flash flood warning the NWS office in San Juan issued in 2026. Puerto Rico had 10 flash flood warnings in April 2026, against 7 in an average April of 2008-2025 (Puerto Rico's flash flood warnings by year).
ExpiredWarning
In force for 3.1 hours; it has expired. The agency may have replaced it with a new notice.
The notice
- Issued by
- National Weather Service, San Juan PR
- Area
- Juana Diaz and Ponce
- State
- Puerto Rico
- Level
- Warning
- Issued
- 4:41 p.m. EDT, April 18, 2026
- Expires
- 7:45 p.m. EDT, April 18, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Immediate
- VTEC event
- TJSJ FF.W 0022
- Official source
- National Weather Service: the notice at its source
Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.
The notice as issued
FFWSJU The National Weather Service in San Juan has issued a * Flash Flood Warning for... Juana Diaz in Puerto Rico... Ponce in Puerto Rico... * Until 745 PM AST. * At 441 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.
What the agency told people to do
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.
Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.