Low pressure moving across the deep South on Thursday January 21st and Friday January 22nd intensifed and moved off the Mid Atlantic coast on Saturday January 23rd, bringing heavy snow and strong winds to southeast New York, and blizzard conditions to Long Island, New York City, and nearby southern Westchester County.
NY Gov. Cuomo declared a state of emergency early Saturday January 23rd. Metro North and Long Island Railroad service halted at 4 PM Saturday.
In New York City, the blizzard contributed to more than 400 car crashes, and streets were closed to all but emergency vehicles from mid-afternoon Saturday January 23nd until 7 AM Sunday January 24th. Much of the city's mass transit was shut down, along with bridges and tunnels across the city and to/from New Jersey. The Port Authority Bus Terminal, the busy Midtown NYC transportation hub, closed its doors at 4 PM Saturday. Broadway shows announced all Saturday performances were canceled.
Travel in and out of New York City airports lagged through Monday January 25th as airlines pre-emptively cut hundreds of flights. All arrivals and departures were eventually canceled due to severe winter weather conditions at LaGuardia airport, with Kennedy at a virtual standstill as well. More than 1,000 flights out of New York City-area airports were cancelled, including 90% of flights from LaGuardia.

Blizzard in SOUTHERN QUEENS, NEW YORK
From 23-JAN-16 07:00:00 to 23-JAN-16 19:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

JFK Airport ASOS observations showed blizzard conditions, with visibility less than one quarter mile in heavy snow and frequent wind gusts over 35 mph through the day and into the early evening on Saturday January 23rd.

Winter Storm in SOUTHEAST SUFFOLK, NEW YORK
From 23-JAN-16 02:15:00 to 23-JAN-16 22:45:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

NWS cooperative observers in Westhampton and Riverhead, trained spotters, an NWS employee, and the public reported snowfall of 15 to 22 inches. ASOS and numerous mesonet stations also reported strong northeast winds, highest at Shinnecock Light, with sustained winds of 43 mph and gusts to 58 mph at 12:20 PM Saturday January 23rd.

Winter Storm in SOUTHERN QUEENS, NEW YORK
From 22-JAN-16 23:30:00 to 23-JAN-16 22:30:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

JFK Airport reported an all time record storm total snowfall of 30.6 inches. Also, winds gusted to 48 mph at 9:00 AM at JFK, and to 43 mph at 5:02 PM at Breezy Point, on Saturday January 23rd.

Winter Storm in BRONX, NEW YORK
From 23-JAN-16 00:00:00 to 23-JAN-16 22:30:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter at the Bronx Zoo measured 27.6 inches of snow. A cooperative observer in Parkchester also measured 26.8 inches of snow.

Winter Storm in KINGS (BROOKLYN), NEW YORK
From 22-JAN-16 23:15:00 to 23-JAN-16 23:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

The public, trained spotters, and a CoCoRaHS observer reported snowfall of 20 to 29 inches.

Winter Storm in NEW YORK (MANHATTAN), NEW YORK
From 22-JAN-16 23:00:00 to 23-JAN-16 23:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Central Park reported an all-time storm total snowfall of 27.5 inches.

Blizzard in SOUTHERN WESTCHESTER, NEW YORK
From 23-JAN-16 09:00:00 to 23-JAN-16 15:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Southern Westchester likely experienced blizzard conditions during the late morning and early afternoon on Saturday January 23rd, as nearby LaGuardia and Bridgeport ASOS observations showed visibility less than one quarter mile in heavy snow and frequent wind gusts over 35 mph during that time.

Winter Storm in NORTHERN WESTCHESTER, NEW YORK
From 23-JAN-16 05:15:00 to 23-JAN-16 21:30:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

The public and trained spotters reported snowfall ranging from 11 to 21 inches.

Blizzard in SOUTHWEST SUFFOLK, NEW YORK
From 23-JAN-16 06:00:00 to 23-JAN-16 18:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

MacArthur Airport and nearby Republic Airport ASOS observations showed blizzard conditions, with visibility less than one quarter mile in heavy snow and frequent wind gusts over 35 mph through the day and into the early evening on Saturday January 23rd.

Winter Storm in ROCKLAND, NEW YORK
From 22-JAN-16 22:30:00 to 23-JAN-16 21:30:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotters and the public reported snowfall of 16 to 17 inches.

Winter Storm in ORANGE, NEW YORK
From 23-JAN-16 10:45:00 to 24-JAN-16 20:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Orange County was on the sharp northern edge of the storm, with marked differences in snowfall from south to north. Most of the county received over 6 inches of snow, with a trained spotter reporting as much as 19 inches in Warwick, while far northern sections received much less, with little to no accumulation along the border with Ulster County.

Winter Storm in PUTNAM, NEW YORK
From 23-JAN-16 08:30:00 to 24-JAN-16 20:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotters and an NWS cooperative weather observer in Carmel reported snowfall ranging from 8 to 14 inches.

Winter Storm in SOUTHERN NASSAU, NEW YORK
From 23-JAN-16 00:15:00 to 23-JAN-16 22:30:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The public and trained spotters reported snowfall ranging from 20 to 30 inches. Also, the Jones Beach Coast Guard station reported sustained northeast winds of 37 mph at 10:50 AM Saturday January 23rd.

Winter Storm in RICHMOND (STATEN IS.), NEW YORK
From 22-JAN-16 22:30:00 to 23-JAN-16 23:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The public and trained spotters reported snowfall ranging from 20 to 31 inches.

Winter Storm in NORTHERN NASSAU, NEW YORK
From 23-JAN-16 00:30:00 to 23-JAN-16 22:30:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotters and the public reported snowfall of 16 to 18 inches. Also, northeast winds at Bayville and Great Gull Island were sustained at 48 mph at 8:25 AM, with a gust to 52 mph at 6:39 AM.

Winter Storm in SOUTHWEST SUFFOLK, NEW YORK
From 23-JAN-16 00:45:00 to 24-JAN-16 03:15:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

An NWS employee, the public, and trained spotters reported snowfall of 19 to 26 inches. MacArthur Airport reported snowfall of 23.7 inches. Numerous ASOS and mesonet stations also reported sustained winds of 35 to 45 mph, with gusts as high as 58 mph at Islip Airport and nearby Blue Point.

Winter Storm in NORTHWEST SUFFOLK, NEW YORK
From 23-JAN-16 01:00:00 to 24-JAN-16 03:15:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

The public, trained spotters, and NWS cooperative weather observers reported snowfall ranging from 15 to 27 inches. At Eaton's Neck, northeast winds were sustained at 49 mph at noon on Saturday the 23rd, and gusted to 59 mph at 9:55 AM on Saturday the 23rd. At Mount Sinai Harbor, north winds gusted to 42 mph at 7:46 PM on Saturday the 23rd.

Winter Storm in NORTHEAST SUFFOLK, NEW YORK
From 23-JAN-16 02:45:00 to 23-JAN-16 22:45:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

The NWS office in Upton reported snowfall of 18.2 inches. Elsewhere, the public and a trained spotter reported snowfall of 9 to 16 inches. Also, northeast winds at Great Gull Island were sustained at 43 mph at 10:03 AM, with a gust to 54 mph at 11:38 AM.

Winter Storm in NORTHERN QUEENS, NEW YORK
From 22-JAN-16 23:30:00 to 23-JAN-16 22:30:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

LaGuardia Airport reported an all time record storm total snowfall of 28.2 inches. Elsewhere, the public and trained spotters reported snowfall of 20 to 27 inches. Also, winds gusted to 48 mph at 9:00 AM at LaGuardia on Saturday January 23rd.

Winter Storm in SOUTHERN WESTCHESTER, NEW YORK
From 23-JAN-16 02:00:00 to 23-JAN-16 22:30:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The public and trained spotters reported snowfall of 13 to 25 inches. Also, north winds at Larchmont Harbor were sustained at 38 mph with gusts up to 49 mph between 9 AM and 10 AM on Saturday January 23rd.

Blizzard in KINGS (BROOKLYN), NEW YORK
From 23-JAN-16 07:00:00 to 23-JAN-16 19:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Nearby LaGuardia, JFK Airport and Central Park ASOS observations showed blizzard conditions, with visibility less than one quarter mile in heavy snow and frequent wind gusts over 35 mph through the day and into the early evening on Saturday January 23rd.

Blizzard in NEW YORK (MANHATTAN), NEW YORK
From 23-JAN-16 07:00:00 to 23-JAN-16 18:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Central Park ASOS observations showed blizzard conditions, with visibility less than one quarter mile in heavy snow and frequent wind gusts over 35 mph through the day and into the early evening on Saturday January 23rd.

Blizzard in NORTHEAST SUFFOLK, NEW YORK
From 23-JAN-16 08:00:00 to 23-JAN-16 17:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Nearby Gabreski Airport (Westhampton Beach) ASOS and East Hampton Airport AWOS
observations showed blizzard conditions, with visibility less than one quarter mile in heavy snow and frequent wind gusts over 35 mph through the day on Saturday January 23rd.

Blizzard in BRONX, NEW YORK
From 23-JAN-16 07:00:00 to 23-JAN-16 18:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Nearby LaGuardia and Central Park ASOS observations showed blizzard conditions, with visibility less than one quarter mile in heavy snow and frequent wind gusts over 35 mph through the day and into the early evening on Saturday January 23rd.

Blizzard in NORTHERN NASSAU, NEW YORK
From 23-JAN-16 07:00:00 to 23-JAN-16 19:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Nearby LaGuardia, JFK, and Republic Airport ASOS observations showed blizzard conditions, with visibility less than one quarter mile in heavy snow and frequent wind gusts over 35 mph through the day and into the early evening on Saturday January 23rd.

Blizzard in NORTHERN QUEENS, NEW YORK
From 23-JAN-16 07:00:00 to 23-JAN-16 19:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

LaGuardia Airport ASOS observations showed blizzard conditions, with visibility less than one quarter mile in heavy snow and frequent wind gusts over 35 mph through the day and into the early evening on Saturday January 23rd.

Blizzard in NORTHWEST SUFFOLK, NEW YORK
From 23-JAN-16 06:00:00 to 23-JAN-16 19:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Nearby Republic and MacArthur Airport ASOS observations showed blizzard conditions, with visibility less than one quarter mile in heavy snow and frequent wind gusts over 35 mph through the day and into the early evening on Saturday January 23rd.

Blizzard in RICHMOND (STATEN IS.), NEW YORK
From 23-JAN-16 07:00:00 to 23-JAN-16 20:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Nearby Newark and JFK Airport ASOS observations showed blizzard conditions, with visibility less than one quarter mile in heavy snow and frequent wind gusts over 35 mph through the day and into the evening on Saturday January 23rd.

Blizzard in SOUTHEAST SUFFOLK, NEW YORK
From 23-JAN-16 08:00:00 to 23-JAN-16 17:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Gabreski Airport (Westhampton Beach) ASOS and East Hampton Airport AWOS
observations showed blizzard conditions, with visibility less than one quarter mile in heavy snow and frequent wind gusts over 35 mph through the day on Saturday January 23rd.

Blizzard in SOUTHERN NASSAU, NEW YORK
From 23-JAN-16 07:00:00 to 23-JAN-16 19:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Nearby JFK and Republic Airport ASOS observations showed blizzard conditions, with visibility less than one quarter mile in heavy snow and frequent wind gusts over 35 mph through the day and into the early evening on Saturday January 23rd.