AleruaFlood Advisory for Isabela, Moca and San Sebastian Counties, Puerto Rico
In effect until 4:45 PM AST.
Issued by the National Weather Service in San Juan at 2:39 PM AST, Monday, November 2, 2026.
Open the TJUA radarThe Weather Service's text
WHAT...Urban area and small stream flooding caused by excessive rainfall is expected.
WHERE...Isabela, Moca, and San Sebastian...
WHEN...Until 445 PM AST.
IMPACTS...Minor flooding in low-lying and poor drainage areas. Rises in small streams and normally dry arroyos.
ADDITIONAL DETAILS... - At 239 PM AST, Doppler radar indicated heavy rain due to thunderstorms. This will cause urban and small stream flooding. Up to 1.5 inches of rain have fallen. - Additional rainfall amounts of 1 to 2 inches are expected over the area. This additional rain will result in minor flooding. - http://www.weather.gov/safety/flood
What to do
Be aware of your surroundings and do not drive on flooded roads.
In hilly terrain there are hundreds of low water crossings which are potentially dangerous in heavy rain. Do not attempt to cross flooded roads. Find an alternate route.