Update Dec. 10, 1 p.m.:

The National Weather Service is expecting 3 to 5 inches of rain, with local areas of 6+ inches for Long Island and Southern Connecticut. Most of this rain is expected to fall in a 12-hour period from late this afternoon into early Monday, and to be concentrated around western Suffolk and eastern Nassau counties..

The Weather Service says there’s a “slight risk” that Long Island and southern Connecticut could face flash flooding in localized areas of poor drainage and near rivers and streams.

Sustained south-southeast winds of 25 to 40 miles per hour are expected, with gusts 45 to 55 miles per hour.

“Damaging wind gusts to 60 miles per hour across Suffolk County” are expected this evening, according to the Weather Service’s Sunday morning storm briefing. “Numerous tree limbs and scattered trees and power lines could be downed.”

Coastal flooding is still expected to be minor.

Original Story Follows, Dec. 9, 10 a.m.:

The National Weather Service is urging Long Islanders and the New York metropolitan area to prepare for a large weather system that is expected to bring heavy rains and strong gusty winds to our region Sunday afternoon, Dec. 10, through early Monday, Dec. 11.

The Weather Service is expecting sustained south/southeast winds of 25 to 35 miles per hour, with gusts 45 to 55 miles per hour. Winds will be at their strongest late Sunday night, before shifting to the northwest early Monday morning. They are also expecting 2 to 3 inches of rain, most of which “will fall over a 12 hour period late Sunday afternoon into early Monday,” according to the Weather Serrvice’s 5:05 a.m. report on Saturday, Dec. 9.

“Numerous tree limbs, along with scattered trees and power lines, could be downed,” and scattered power outages are likely, according to the Weather Service. “Expect poorly secured outdoor objects to be damaged or blown away.”

“There is a potential for a narrow line of heavy downpours and embedded thunderstorms just ahead of the cold frontal passage Sunday night, early Monday a.m., which could briefly bring enhanced rainfall rates and isolated 60 mph gusts,” according to the Weather Service.

Land areas of the East End are under a high wind watch, while the Peconic Bays, Block Island Sound and the Atlantic Coast are under a storm watch. A gale watch is in effect for Long Island Sound. Western Suffolk and Nassau counties, as well as New York City and surrounding areas in New York, New Jersey and Connecticut are under a flood watch due to the expected heavy rain. No areas are currently under a coastal flood watch. The next briefing will be at 6 p.m. Saturday.

The Weather Service says there is a potential for “minor coastal flooding” of 1 foot above ground level for vulnerable communities, including the southern and eastern bays of Long Island. Ocean surf of 8 to 12 feet is expected to cause widespread ocean beach flooding and “scattered areas of dune base erosion,” though “the threat for overwashes is low.”

Below are the times of high tide for Sunday and Monday:

December 10
Plum Gut Harbor: 7:33 a.m., 7:58 p.m.
Montauk Harbor: 6:41 a.m., 7:06 p.m.
Greenport: 8:10 a.m., 8:35 p.m.
Mattituck Inlet: 8:54 a.m., 9:28 p.m.
Sag Harbor: 8:05 a.m., 8:30 p.m.
New Suffolk: 9:32 a.m., 9:57 p.m.
South Jamesport: 9:39 a.m., 10:04 p.m.
Shinn. Bay Entrance: 6:37 a.m., 6:55 p.m.
Shinn. Inlet: 4:46 a.m., 5:04 p.m.

December 11
Plum Gut Harbor: 8:10 a.m., 8:38 p.m.
Montauk Harbor: 7:18 a.m., 7:46 p.m.
Greenport: 8:47 a.m., 9:15 p.m.
Mattituck Inlet: 9:37 a.m., 10:13 p.m.
Sag Harbor: 8:42 a.m., 9:10 p.m.
New Suffolk: 10:09 a.m., 10:37 p.m.
South Jamesport: 10:16 a.m., 10:44 p.m.
Shinn. Bay Entrance: 7:19 a.m., 7:41 p.m.
Shinn. Inlet: 5:28 a.m., 5:50 p.m.

The storm is expected to bring heavy, wet snow to upstate New York, and while the winds aren’t expected to be as severe there as on Long Island, Governor Kathy Hochul is warning that the combination of wet snow and heavy winds could make travel hazardous.

“This weekend we are watching a major weather system bringing rain, snow and gusty winds that could cause some dangerous issues for New Yorkers, including flooding, dangerous travel, and power outages,”  said Governor Hochul in a media alert Friday. “I have directed state agencies to monitor this weather system throughout its duration and be ready to respond to any requests for assistance. I urge all New Yorkers to prepare now and plan for the next couple of days as the forecast comes into clearer view.”

She also urged residents to sign up for NY-Alert, which provides emergency information to the public, online here.

We will update this post as more information becomes available.

Beth Young
Beth Young is an award-winning local journalist who has been covering the East End since the 1990s. She began her career at the Sag Harbor Express and, after receiving her Masters from the Columbia University Graduate School of Journalism, has reported for the Southampton Press, the East Hampton Press and the Times/Review Media Group. She founded the East End Beacon website in 2013, and a print edition in 2017. Beth was born and raised on the North Fork. In her spare time, she tinkers with bicycles, tries not to drown in the Peconic Bay and hopes to grow the perfect tomato. You can send her a message at editor@eastendbeacon.com

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