The National Weather Service in Albany has issued a flood watch for all of Eastern New York and adjacent New England from 3 p.m. today through Thursday afternoon.
The weather service says a strong storm system will bring heavy rainfall to the Albany area from late today through tonight. One to two inches of rain will fall, with localized amounts of up to three inches.
The rain will be accompanied by above-freezing temperatures and some snow melt.
With the ground frozen across most of the area, forecasters are concerned the rain could lead to localized flash flood threat in areas with heavy rain.
Heavy rain and snow melt will also likely cause some small streams to flood. Rural road washouts are possible if road culverts become clogged with ice.
Mud slides in steep terrain and basement flooding is also possible, the weather service said.
River ice jams are possible, although the ice is not yet thick enough for protracted jams that would cause serious flooding.
Flooding is most likely to happen tonight into Thursday.
A flood watch means there is a potential for flooding based on current forecasts.