NWS San Juan PRFF.W 0031September 19, 2026
Flash Flood Warning: Aguada, Las Marias, Moca and 1 more, PR
The National Weather Service office in San Juan issued a flash flood warning for Aguada, Las Marias, Moca and 1 more in Puerto Rico, which was in force until 6:30 p.m. local time on September 19. It was the 31st flash flood warning the NWS office in San Juan issued in 2026. Puerto Rico had 4 flash flood warnings in September 2026, against 12 in an average September of 2008-2025 (Puerto Rico's flash flood warnings by year).
ExpiredWarning
In force for 2.7 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
- Aguada, Las Marias, Moca and 1 more
- State
- Puerto Rico
- Level
- Warning
- Issued
- 3:50 p.m. EDT, September 19, 2026
- Expires
- 6:30 p.m. EDT, September 19, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Immediate
- VTEC event
- TJSJ FF.W 0031
- 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... Aguada County in Puerto Rico... Las Marias County in Puerto Rico... Moca County in Puerto Rico... San Sebastian County in Puerto Rico... * Until 630 PM AST. * At 350 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 2 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 indicated. IMPACT...Life threatening flash flooding of creeks and streams, urban areas, highways, streets and underpasses.
What the agency told people to do
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Flooding is occurring or is imminent. It is important to know where you are relative to streams, rivers, or creeks which can become killers in heavy rains. Campers and hikers should avoid streams or creeks.
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.