Two waves of rain:
There will be 2 main periods of rain for Long Island and nearby areas.
The first will be from Tuesday evening into Wednesday morning with rain possibly heavy at times with 1 to 2 inches of rain likely.
There should then be a break in the action Wednesday afternoon before another wave of low pressure develops along the front and moves through with more rain Wednesday night into Thursday morning.
Total rainfall amounts of 2 to 3 inches are likely with locally higher amounts possible.
The potential is there for wind gusts of 30 to 40 mph with each system, especially for eastern Long Island.
This video from the Euro goes from 8 PM Tuesday to 2 AM Thursday: