Coastal flooding at Tuesday evening high tide, sun returns Wednesday, NWS says

After three days of relentless rain and generally nasty conditions, Long Island can expect some widespread moderate flooding Tuesday in the region's most vulnerable areas, the National Weather Service said.

But the sun should make a return appearance Wednesday.

Tuesday afternoon and into the evening tide, the South Shore is expected to experience up to 2 feet of inundation above ground level in flood-prone areas near the waterfront and shoreline, the NWS said.

"This will result in several road closures and cause widespread flooding of low lying property including parking lots, parks, lawns and homes/businesses with basements near the waterfront. Vehicles parked in vulnerable areas near the waterfront may become flooded," the weather service said in a Tuesday afternoon advisory.

In addition, dangerous rip currents and high waves are expected at the south-facing beaches Tuesday, forecasters say. That means some dune erosion as well, the weather service said.

The rain is expected to lighten and finally taper off Tuesday evening, with a high in the low 60s and occasional wind gusts of up to 25 mph, the NWS said. 

Wednesday promises to be a fall-like day of clearing skies, lots of sunshine and temperatures in the mid-60s, forecasters said.

The rain that began over the weekend is the result of the remnants of Ophelia, a onetime tropical storm, now a depression, that made landfall in North Carolina over the weekend and then lingered along the East Coast into Tuesday.