Headline:
Flash Flood Warning issued September 19 at 3:50PM AST until September 19 at 6:30PM AST by NWS San Juan PR
Event:
Flash Flood Warning
Urgency:
Immediate
Effective:
September 19, 2026 - 12:50pm
Expires:
September 19, 2026 - 3:30pm
Description:
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.
Instruction:
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.
Area Description:
Aguada, PR; Las Marias, PR; Moca, PR; San Sebastian, PR
Forcast Office:
NWS San Juan PR
Sender:
w-nws.webmaster@noaa.gov