Portland is asking residents to help keep catch basins clear of leaves to avoid flooding.Tap here to track the rain hour-by-hourA fall nor'easter is expected to bring heavy rain and wind to Portland, and the city said Public Services crews are working to keep the catch basins clear.Tap here to watch the report"We have some areas of the city that we will monitor closely if we have to close off areas with barricades and things like that," said Public Services Director Mike Bobinsky.Officials said with 6,000 catch basins to cover, worker will need help and are asking residents to clear any clogged catch basins they find."We do encourage residents and property owners if they can, if their catch basin is full of debris or leaves, if they can open those up, that's great," said Bobinsky.The city said its fall curbside leaf pickup program will begin Monday and will continue through Nov. 21.9234718