Heavy rains may cause flash floods throughout the borough.
The National Weather Service (NWS) has issued a flash flood warning for Queens lasting until 2 p.m.
More than an inch of rain has already fallen in parts of Queens and one to two more inches is possible.
Some flooding is already occurring and is imminent other places, the NWS said.
The southbound Van Wyck Expressway at exit 6, the eastbound Grand Central Parkway between the Long Island Expressway and Jewel Avenue and the eastbound Long Island Expressway at Francis Lewis Boulevard are closed.
Highways, underpasses and other low-lying spots are most vulnerable to flooding.
The NWS warned that just one foot of flood water is enough to sweep a vehicle off the road.