Persistent Monday rain will become more of a scattered thunderstorm threat Monday night. Periods of rain may lead to ponding on the roads and localized flooding through Tuesday, and possibly Wednesday.

All of South Florida is under a flood watch until Tuesday morning amid heavy rains. Cities on the east coast of Miami-Dade and Broward are at moderate risk of excessive rainfall, according to the National Weather Service in Miami. Forecasters expect anywhere from 3 to 6 inches of rain in the region due to Monday’s downpour.