Weather

Coastal Flood Advisory In Effect Friday Across LI: NWS

After Thursday's heavy rain, coastal flooding is expected Friday.

See what Mother Nature has in store for Friday across Long Island.
See what Mother Nature has in store for Friday across Long Island. (Lisa Finn / Patch)

LONG ISLAND, NY — After Thursday's rain, a coastal flood advisory will remain in effect from 9 a.m. until 3 p.m. Friday, according to the National Weather Service.

The advisory is in effect for southern parts of Suffolk and Nassau Counties, the NWS said.

Up to one half foot of inundation above ground level is expected in vulnerable areas near the waterfront and shoreline, the NWS said.

Find out what's happening in East Hamptonfor free with the latest updates from Patch.

Minor flooding is expected in the more vulnerable locations near the waterfront and shoreline of the western reaches of the Great South Bay in areas such as Lindenhurst, also along the South Fork of Long Island in areas with a northerly exposure such as Montauk and along Napeague Bay, the NWS said.

In southern Nassau, minor flooding is expected in the more vulnerable locations near the waterfront and shoreline, the NWS said.

Find out what's happening in East Hamptonfor free with the latest updates from Patch.

Across southern Long Island, some roads and low-lying properties including parking lots, parks, lawns, and homes and businesses with basements near the waterfront will experience minor flooding, the NWS said.

If travel is required, allow extra time as some roads may be closed, the NWS said. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property, the NWS said.

Showers are expected before midnight Thursday night, then rain after midnight, with a low around 42 and a northeast wind of 14 to 18 mph, with gusts as high as 29 mph. The chance of precipitation is 100 percent, with new precipitation amounts between a quarter and half of an inch possible, the NWS said.

On Friday, the rain is expected to continue, with a high near 50 degrees, the NWS said. A north wind of 13 to 18 mph is possible, with gusts as high as 29 mph, the NWS said. The chance of precipitation is 100 percent, with new precipitation amounts between a quarter and half of an inch possible, the NWS said.

Friday night will bring a 40 percent chance of rain, mainly before 10 p.m., the NWS said. Conditions will be cloudy, with a low around 37 degrees, and a north wind around 8 mph, with gusts as high as 20 mph, the NWS said.

Get more local news delivered straight to your inbox. Sign up for free Patch newsletters and alerts.