Flash flood watch in effect for Cortland County through Tuesday morning

Flooding on Tompkins Street in 2015 (Cortland Voice file photo)

A slow moving storm system over western Pennsylvania will bring "tropical moisture" into the Cortland area today, triggering heavy rain and thunderstorms, according to the National Weather Service.

A flash flood watch is in effect for Chenango, Cortland, and Tompkins counties until 6 a.m. Tuesday.

More rain combined with already wet conditions may cause flash flooding of small streams and overflow of ditches and culverts through Monday afternoon and evening, forecasters said.

The NWS recommends monitoring the latest forecasts in case a flash flood warning should be issued.