Long Island Weather Forecast: High Wind Warning Canceled, Flooding Concerns Remain For Tuesday Morning

UPDATE 11:20 p.m.: The high wind warning has been canceled as wind gusts have so far been lower than predicted. A wind advisory has replaced the warning and will be in effect until 6 a.m. Wind gusts of up to 55 mph are still possible overnight. The highest reported wind gust on Long Island Monday was 62 mph in Montauk. The rest of the island saw top gusts in the upper-40s and lower-50s. Find wind gust reports here.

Coastal flood warnings are still slated to be in effect from 4 a.m. until 11 a.m. Tuesday for the entire South Shore as well as the North Fork. Widespread flooding of vulnerable waterfront and shoreline roads is likely Tuesday morning, the National Weather Service says. High surf of 9-14 feet is also expected to cause widespread dune erosion at South Shore beaches.

There was some minor flooding reported across the island Monday night, but nowhere near the worse-case scenario that had been forecast.

Rain is likely to continue into Tuesday afternoon, but maximum wind gusts will fall to about 30 mph by 10 a.m.

Fire Island Ferries shared the below video of the wind churning up the Great South Bay Monday afternoon. The video also captures a seal hanging out in the bay apparently enjoying the waves.

Photo by Vickie Vandenberg: Flooding on Venetian Boulevard in Lindenhurst Monday night.

Original story: Thousands of Long Islanders are without power Monday night as a nor'easter lashes the region with strong winds and heavy rain.

As of 8 p.m, PSEG Long Island is reporting that 4,415 of its customers have lost power. See the PSEG outage map here.

A high wind warning for the island has been extended until 6 a.m. Tuesday, according to the latest storm briefing from the National Weather Service (watch it below or read it here). Wind gusts of up 60 mph are likely. Gusts of 65-70 mph are possible on the Twin Forks.

The storm has already toppled power lines and trees across the island, but no injuries have been reported. Find wind gust reports here.

Coastal flood warnings are in effect across the island until 11 p.m. Monday. The threat of additional flooding Tuesday morning has increased and coastal flood warnings will be in effect once again from 4-11 a.m. for the entire South Shore as well as the North Fork.

• Have photos of flooding or storm damage? Email them to ryan@patch.com

Coastal residents in the warned area should be alert for rising water and take appropriate action to protect life and property.

There is the potential for widespread flooding of vulnerable shore roads and adjacent properties due to the height of storm tide and wave action, the NWS says.

Numerous road closures may be needed, and isolated structural damage is possible along the immediate shoreline. Find high-tide times and the extent of expected flooding for various parts of the island in the NWS storm briefing here.

Elevated water levels and high surf are also expected to cause widespread dune erosion and localized wash-overs along the Atlantic Ocean beachfront into Tuesday.

The full forecast:

Monday Night: Rain. The rain could be heavy at times. Temperature rising to around 45 by 3am. Wind chill values between 30 and 35. Windy, with a northeast wind 31 to 38 mph, with gusts as high as 65 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

Tuesday: Rain likely, mainly before 3pm. Cloudy, with a high near 46. Breezy, with a northeast wind 17 to 22 mph decreasing to 9 to 14 mph in the afternoon. Winds could gust as high as 48 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

Tuesday Night: A 50 percent chance of rain, mainly before 3am. Cloudy, then gradually becoming partly cloudy, with a low around 35. Wind chill values between 30 and 35. Northwest wind around 16 mph.

Wednesday: Mostly sunny, with a high near 47. Wind chill values between 30 and 40 early. Northwest wind around 14 mph.

Wednesday Night: A 30 percent chance of showers after midnight. Partly cloudy, with a steady temperature around 44. Southwest wind 9 to 11 mph.

Thursday: Partly sunny, with a high near 47.