A low pressure developed along a frontal boundary along the southeast coast on the evening of Saturday, February 17, 2018. This low gradually became better organized as it moved up the coast towards the 40��N/70��W benchmark early Sunday, February 18, 2018. This system brought heavy snow to portions of the Lower Hudson Valley and light to moderate snow across the New York City Metropolitan and western Long Island.

Winter Weather in NORTHWEST SUFFOLK, NEW YORK
From 17-FEB-18 19:00:00 to 18-FEB-18 01:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

A COOP Observer in Centerport reported 3.3 inches of snow. An NWS Employee reported 3.2 inches of snow in North Babylon with public reports of around 3 inches in Commack and Smithtown.

Winter Weather in KINGS (BROOKLYN), NEW YORK
From 17-FEB-18 18:00:00 to 18-FEB-18 01:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Social media reported 3.5 inches of snow in Williamsburg.

Winter Weather in BRONX, NEW YORK
From 17-FEB-18 17:00:00 to 18-FEB-18 00:30:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

A CoCoRaHS observer 1 NE of Riverdale 5.0 inches of snow and the public reported 4.8 inches of snow in Morris Park.

Winter Weather in NORTHERN NASSAU, NEW YORK
From 17-FEB-18 17:00:00 to 18-FEB-18 01:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Social media reported 3.8 inches of snow in Thomaston. A COOP observer in Syosset reported 3.2 inches of snow.

Winter Weather in SOUTHERN NASSAU, NEW YORK
From 17-FEB-18 17:00:00 to 18-FEB-18 01:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Social media reported 3.8 inches of snow in North Massapequa.

Winter Weather in NORTHERN QUEENS, NEW YORK
From 17-FEB-18 17:00:00 to 18-FEB-18 00:30:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

The FAA Contract Observer at LaGuardia Airport reported 4.3 inches of snowfall. Trained spotters, social media, and the public reported 3 to 5 inches of snowfall.

Heavy Snow in ROCKLAND, NEW YORK
From 17-FEB-18 17:30:00 to 18-FEB-18 01:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotters, fire department/rescue, social media, and the public reported 6 to 8 inches of snowfall.

Winter Weather in NEW YORK (MANHATTAN), NEW YORK
From 17-FEB-18 17:00:00 to 18-FEB-18 00:30:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

The Official NWS Observation at Central Park, NY was 4.4 inches of snow.  The public also reported 5 inches in Yorkville.

Winter Weather in ORANGE, NEW YORK
From 17-FEB-18 17:00:00 to 18-FEB-18 03:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotters and CoCoRaHS observers reported 3 to 5 inches of snowfall. A trained spotter 1 W of Silver Maples reported 6 inches of snowfall.

Heavy Snow in PUTNAM, NEW YORK
From 17-FEB-18 18:00:00 to 18-FEB-18 04:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

A COOP Observer and trained spotters reported 6 to 7 inches of snowfall.

Heavy Snow in NORTHERN WESTCHESTER, NEW YORK
From 17-FEB-18 17:00:00 to 18-FEB-18 02:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

CoCoRaHS observers, Trained Spotters, and the public reported 6 to 8 inches of snowfall.

Heavy Snow in SOUTHERN WESTCHESTER, NEW YORK
From 17-FEB-18 17:00:00 to 18-FEB-18 02:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotters, social media, and the public reported 6 to 8 inches of snowfall.