New York, 2020

High Wind in New York, December 16 to 17, 2020

December 16 to 17, 2020 · NWS OKX · 5 events in 3 counties and zones

Coastal low pressure passing nearby brought high winds to the area.

Where it happened

Every event with a place to put it; 5 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
5

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS OKX wrote it up.

Coastal low pressure passing nearby brought high winds to the area.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS New York, NY wrote its last area forecast discussion before the first event at Dec 16, 7:50 PM EST, 1 hour 10 minutes earlier.

Area forecast discussion, Dec 16, 7:50 PM EST, 1 hour 10 minutes before
Area Forecast Discussion
National Weather Service New York NY
750 PM EST Wed Dec 16 2020

.SYNOPSIS...
High pressure to the north will slowly retreat as low pressure
moves northward up the Mid Atlantic coast. This low will
intensify as it approaches the region, turning east and passing
south of Long Island tonight into Thursday. High pressure will
then build in from the west through the first half of the
weekend before moving offshore late in the day Saturday. A
series of weak disturbances will move across the area Sunday and
Monday, followed by a stronger cold frontal passage Monday
night into Tuesday. High pressure will briefly return for the
middle of next week.

&&

.NEAR TERM /THROUGH THURSDAY/...
Strong thermal forcing overrunning a 1037mb polar high centered
over eastern Canada, bleeding southward into southern New
England, has resulted in 2-3 inches of snow across portions of
the NYC metro, NE NJ, and Long Island, with snowfall rates of
1-2 inches an hour. This activity will overspread CT and the
Lower Hudson Valley the next couple of hours as cold, dry air
(dew points in the single digits to lower teens) saturates.

Thus far, the NAMNest, the warmer of the solutions aloft, was
handling the thermo profile best when compared to the 00Z OKX
sounding. It was around 0c at 825mb, while the GFS and HRRR were
several degrees cooler. Strong lift though will keep this area
generally isothermal and below freezing the next few hours. The
key here will be the position of the coastal front and how far
north and west the warm nose (around 750 mb) gets overnight.
There is even some evidence that the boundary layer will warm
sufficiently after midnight (due to east winds) for some rain
across eastern sections of Long Island and perhaps coastal SE
CT. The front end dump of snow may make this a moot point with
warning level snows likely achieved before this changeover even
happens later tonight.

Greatest pressure falls of 7mb in the last 3 hours just east of
the Delmarva with a 1004 mb low east Wallops Island, VA. The
low will continue to track northward and hug the coast, as a
negatively tilted shortwave trough works NE across the central
Appalachians. The low will eventually turn east running into the
blocking high over eastern Canada, passing south of Long Island
overnight into Thursday morning.

The primary question remains how far north the low will come
before making its eastward turn, which in turn dictates how
much, if any, warm air is able to work into the area at the
surface and aloft. From a big picture perspective, the models
have been very consistent with the position of the low over the
past 24 hours, with only minor changes from run to run. However,
given how close the low is forecast to come to the region, even
minor changes in the location of the low will have a
significant impact on snowfall totals, especially along the
coast.

In addition, high resolution models are indicating the
potential for a dry slot to develop across Long Island and
perhaps as far north as southern Connecticut. Model soundings
also indicate some loss of saturation in the dendritic growth
zone during this same period, all of which could at the very
least limit the intensity of precipitation, and possibly allow
precipitation to change to drizzle for a period. With that said,
global model soundings remain below freezing throughout the
event, keeping precipitation all snow.

Winds will become more northerly as the low pulls east towards
daybreak, which will allow colder air to filter back into the
region, changing precipitation back to snow everywhere. Snow
will eventually wrap up from west to east from late morning into
the early afternoon.

Snowfall accumulations will range from 12-18 inches across the
Lower Hudson Valley, interior northeast New Jersey, and interior
southwestern Connecticut, where precipitation will remain all
snow. Snow totals will range from 10-15 inches across much of
the New York City metro area and western Long Island, although
totals could be a few inches lower across coastal portions of
Brooklyn, Queens, and Nassau County. Across the rest of Long
Island and far southeastern Connecticut, snowfall totals will
range from 4-12 inches, lowest across the Twin Forks and
immediate south facing coastlines.

In addition to the snow, winds will increase this evening as
the deepening low approaches. Winds could gust to 35-45 mph
across much of the area overnight, with gusts to 45-55 mph
possible across far eastern Long Island. While these winds would
result in blizzard to near-blizzard conditions at times, they
also correspond with the greatest potential for mixing. With
that in mind, made no changes to headlines, with a Winter Storm
Warning remaining in effect for the entire area. While breezy
conditions will continue into the morning as precipitation
changes back to snow, with decreasing snowfall intensity
visibilities should remain above 1/4 mile.

&&

.SHORT TERM /THURSDAY NIGHT/...
Winds will gradually diminish Thursday night as the low
continues to move east away from the area. With a fresh
snowpack, lows will range from the lower teens across typically
cooler interior locations to the low 20s along the coast.

&&

.LONG TERM /FRIDAY THROUGH WEDNESDAY/...
Not a whole lot of change in the global models from what we saw
24 hours ago. A progressive, yet amplified upper flow will
feature ridging building in from the west Friday into Saturday
with a broad upper trough reestablishing itself across the NE
quarter of the CONUS Sunday into early next week.

At the surface, high pressure settles over the area late Friday
night into Saturday morning before moving offshore late in the
day. Late Saturday night into Monday, a disjointed upper trough
will send a series of weak shortwaves into the area with a low
chance for light precipitation to the NW of NYC late Saturday
night into the first half of Sunday. It looks cold enough for
for light snow shower activity with little or no accumulation
expected. A cold front will then move across the area Tuesday
morning with some cooler air gradually filtering in through
Wednesday morning. The cold frontal passage looks to be dry, but
a rain or snow shower across the hills well north and west of
NYC is not out of the question.

Temperatures will gradually moderate through the period, with
readings 5 to 10 degrees below normal at the start, to slightly
above normal by early next week. Following a cold frontal
passage Tuesday morning, temperatures will return to near normal
Tuesday night and Wednesday.

&&

.AVIATION /00Z THURSDAY THROUGH MONDAY/...
***HIGH IMPACT WINTER STORM IN PROGRESS***

Low pressure moving NNE along the Mid Atlantic Coast tonight will
turn E off the New Jersey coast early Thursday morning, and then
pass S of Long Island through the day on Thursday.

Bands of moderate to heavy snow with LIFR conds are spreading into
the area attm. Some sleet should mix in along the coast for a couple
of hours after 05Z-06Z (KEWR/KJFK/KLGA/KISP and briefly at KTEB),
then precip should change back to light snow after 08Z-09Z.

ENE winds will ramp up quickly this evening to 30-35G40-45kt,
highest at KBDR with its Long Island Sound exposure. Wind shear is
also expected tonight, generally starting after 02Z and ending after
05Z in the NYC metros, and 07Z-08Z farther east. This will occur at
2000 ft with a ENE direction and speed of 50 to 55 kt.

Storm total snowfall of 10-16 inches is expected, with the higher
amts at the terminals NW of NYC.

Snow should gradually taper off from W-E through the day on Thu. VFR
conds with gradually diminishing N winds forecast through the day,
with a chance that MVFR cigs could last through the day.

 ...NY Metro (KEWR/KLGA/KJFK/KTEB) TAF Uncertainty...

AMD possible to fine-tune flight cat and precip types.

.OUTLOOK FOR 00Z FRIDAY THROUGH MONDAY...
.Thursday night through Saturday...VFR.
.Sunday...Possibly MVFR at times with snow showers.
.Monday...VFR.

Detailed information, including hourly TAF wind component forecasts,
can be found at: http:/www.weather.gov/zny/n90

&&

.MARINE...
Winds will continue to increase on all waters this evening as a
strengthening area of low pressure approaches and moves across
the waters. A Storm Warning is effect on the ocean waters with
gusts 50-55 kt expected overnight. Elsewhere, Gale Warnings
remain in effect, with winds expected to gust to around 40 kt.
In addition, seas will continue to build, with 12-16 ft seas
expected on the ocean by Thursday morning and 3-7 ft on the Long
Island Sound.

Winds will gradually diminish during the day on Thursday,
falling below SCA criteria on all waters by Thursday night,
although ocean seas will continue to remain elevated.

Northerly winds will continue to diminish Friday with high
pressure building across the waters into Saturday. The high
builds offshore late Saturday with a weak return flow into early
next week. Sub SCA conditions are then forecast into early next
week.

&&

.HYDROLOGY...
A winter storm will bring liquid equivalent precipitation totals
of 1-1.5 inches through the day on Thursday, with the majority
falling through Thursday morning. Any melting should be slow as
high temperatures remain below 40 until the weekend.

&&

.TIDES/COASTAL FLOODING...
Surge is expected to build to 2 1/2 to 3 1/2 ft in most spots across
Lower NY/NJ harbor, W LIS, and south shore bays of W LI on NE winds
ramping up to solid gale/marginal storm force this evening.
Widespread moderate coastal impacts are expected along the south
shore bays of Nassau County. Along W LI Sound, combo of 3-5 ft surf
and elevated water levels will bring minor to moderate coastal
impacts for shoreline roads and properties, particularly coastal
Westchester and NW LI.

Storm surge will likely peak out at 4-5 ft in spots tonight
during time of low tide, but then is likely to settle back to 2
1/2 to 3 1/2 ft during the times of high tide Thu
morning/afternoon as winds shift to the north. These water
levels, during a higher astronomical tide Thu AM/early aft, will
bring potential for more widespread minor to moderate coastal
impacts with Thursday morning/early aft high tide. Highest
probability of widespread moderate coastal flood impacts (2 to
locally 3 ft inundation) is along vulnerable south shore bays of
LI and Queens with limited tidal drainage, with widespread
minor to locally moderate impacts (1 to locally 2ft inundation)
elsewhere. Have stayed close to deterministic surge guidance and
NYHOPS weighted mean, with expectation of wind shifting to a
less conducive N flow for surge. Will have to monitor guidance
trends.

&&

.OKX WATCHES/WARNINGS/ADVISORIES...
CT...Winter Storm Warning until 1 PM EST Thursday for CTZ005>012.
     Coastal Flood Advisory from 9 AM to 2 PM EST Thursday for
     CTZ009.
     Coastal Flood Advisory from 11 PM this evening to 2 AM EST
     Thursday for CTZ009-010.
NY...Winter Storm Warning until 1 PM EST Thursday for NYZ067>075-
     078>081-176>179.
     Coastal Flood Advisory until 3 AM EST Thursday for NYZ079>081.
     Coastal Flood Advisory from 9 AM to 2 PM EST Thursday for
     NYZ071-078-079-081-177.
     Coastal Flood Advisory until 1 AM EST Thursday for NYZ072-074-
     075-178.
     Coastal Flood Advisory from 8 AM to 11 AM EST Thursday for
     NYZ072-074-075.
     Coastal Flood Advisory from 11 PM this evening to 2 AM EST
     Thursday for NYZ073-176.
     Coastal Flood Warning until 1 AM EST Thursday for NYZ179.
     Coastal Flood Warning from 8 AM to 2 PM EST Thursday for
     NYZ080-178-179.
     Coastal Flood Warning from 11 PM this evening to 2 AM EST
     Thursday for NYZ071-078-177.
NJ...Winter Storm Warning until 1 PM EST Thursday for NJZ002-004-
     006-103>108.
     Coastal Flood Advisory until 1 AM EST Thursday for NJZ006-106-
     108.
     Coastal Flood Advisory from 8 AM to 11 AM EST Thursday for
     NJZ006-106-108.
MARINE...Gale Warning until 1 PM EST Thursday for ANZ330-335-338-340-
     345.
     Storm Warning until 7 AM EST Thursday for ANZ350-353-355.

&&

SYNOPSIS...FEB/DW
NEAR TERM...FEB/DW
SHORT TERM...FEB
LONG TERM...DW
AVIATION...BG
MARINE...FEB/DW
HYDROLOGY...FEB/DW
TIDES/COASTAL FLOODING...NV
Hazardous weather outlook, Dec 16, 7:16 PM EST, 1 hour 44 minutes before
Hazardous Weather Outlook...UPDATED
National Weather Service New York NY
716 PM EST Wed Dec 16 2020

CTZ005>008-011-012-NJZ002-004-103>105-107-NYZ067>070-180030-
Northern Fairfield-Northern New Haven-Northern Middlesex-
Northern New London-Southern Middlesex-Southern New London-
Western Passaic-Eastern Passaic-Western Bergen-Eastern Bergen-
Western Essex-Western Union-Orange-Putnam-Rockland-
Northern Westchester-
716 PM EST Wed Dec 16 2020

...WINTER STORM WARNING IN EFFECT UNTIL 1 PM EST THURSDAY...

This Hazardous Weather Outlook is for southern Connecticut,
northeast New Jersey and southeast New York.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Winter Storm Warning.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Winter Storm Warning.

.SPOTTER INFORMATION STATEMENT...

Spotter activation according to Standard Operating Procedures is
requested and appreciated. Please safely report significant weather
conditions while following local, state, and CDC guidelines.

&&

This Hazardous Weather Outlook provides a summary of potential
widespread hazardous weather events that may reach NWS warning
criteria. Most long fused NWS watches, warnings, and advisories in
effect are highlighted.

Please refer to the latest NWS forecasts for weather not meeting NWS
warning criteria.

NJZ006-106-108-NYZ072-074-075-180030-
Hudson-Eastern Essex-Eastern Union-New York (Manhattan)-
Richmond (Staten Island)-Kings (Brooklyn)-
716 PM EST Wed Dec 16 2020

...WINTER STORM WARNING IN EFFECT UNTIL 1 PM EST THURSDAY...
...COASTAL FLOOD ADVISORY IN EFFECT UNTIL 1 AM EST THURSDAY...
...COASTAL FLOOD ADVISORY IN EFFECT FROM 8 AM TO 11 AM EST
THURSDAY...

This Hazardous Weather Outlook is for northeast New Jersey and
southeast New York.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Winter Storm Warning.
   Coastal Flood Advisory.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Winter Storm Warning.
   Coastal Flood Advisory.

.SPOTTER INFORMATION STATEMENT...

Spotter activation according to Standard Operating Procedures is
requested and appreciated. Please safely report significant weather
conditions while following local, state, and CDC guidelines.

&&

This Hazardous Weather Outlook provides a summary of potential
widespread hazardous weather events that may reach NWS warning
criteria. Most long fused NWS watches, warnings, and advisories in
effect are highlighted.

Please refer to the latest NWS forecasts for weather not meeting NWS
warning criteria.

CTZ009-180030-
Southern Fairfield-
716 PM EST Wed Dec 16 2020

...WINTER STORM WARNING IN EFFECT UNTIL 1 PM EST THURSDAY...
...COASTAL FLOOD ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 2 AM
EST THURSDAY...
...COASTAL FLOOD ADVISORY IN EFFECT FROM 9 AM TO 2 PM EST THURSDAY...

This Hazardous Weather Outlook is for southern Connecticut.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Winter Storm Warning.
   Coastal Flood Advisory.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Winter Storm Warning.
   Coastal Flood Advisory.

.SPOTTER INFORMATION STATEMENT...

Spotter activation according to Standard Operating Procedures is
requested and appreciated. Please safely report significant weather
conditions while following local, state, and CDC guidelines.

&&

This Hazardous Weather Outlook provides a summary of potential
widespread hazardous weather events that may reach NWS warning
criteria. Most long fused NWS watches, warnings, and advisories in
effect are highlighted.

Please refer to the latest NWS forecasts for weather not meeting NWS
warning criteria.

NYZ071-078-177-180030-
Southern Westchester-Northwestern Suffolk-Northern Nassau-
716 PM EST Wed Dec 16 2020

...WINTER STORM WARNING IN EFFECT UNTIL 1 PM EST THURSDAY...
...COASTAL FLOOD WARNING IN EFFECT FROM 11 PM THIS EVENING TO 2 AM
EST THURSDAY...
...COASTAL FLOOD ADVISORY IN EFFECT FROM 9 AM TO 2 PM EST THURSDAY...

This Hazardous Weather Outlook is for southeast New York.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Winter Storm Warning.
   Coastal Flood Warning.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Winter Storm Warning.
   Coastal Flood Advisory.

.SPOTTER INFORMATION STATEMENT...

Spotter activation according to Standard Operating Procedures is
requested and appreciated. Please safely report significant weather
conditions while following local, state, and CDC guidelines.

&&

This Hazardous Weather Outlook provides a summary of potential
widespread hazardous weather events that may reach NWS warning
criteria. Most long fused NWS watches, warnings, and advisories in
effect are highlighted.

Please refer to the latest NWS forecasts for weather not meeting NWS
warning criteria.

CTZ010-NYZ073-176-180030-
Southern New Haven-Bronx-Northern Queens-
716 PM EST Wed Dec 16 2020

...WINTER STORM WARNING IN EFFECT UNTIL 1 PM EST THURSDAY...
...COASTAL FLOOD ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 2 AM
EST THURSDAY...

This Hazardous Weather Outlook is for southern Connecticut and
southeast New York.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Winter Storm Warning.
   Coastal Flood Advisory.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Winter Storm Warning.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

&&

This Hazardous Weather Outlook provides a summary of potential
widespread hazardous weather events that may reach NWS warning
criteria. Most long fused NWS watches, warnings, and advisories in
effect are highlighted.

Please refer to the latest NWS forecasts for weather not meeting NWS
warning criteria.

NYZ079-081-180030-
Northeastern Suffolk-Southeastern Suffolk-
716 PM EST Wed Dec 16 2020

...WINTER STORM WARNING IN EFFECT UNTIL 1 PM EST THURSDAY...
...COASTAL FLOOD ADVISORY IN EFFECT UNTIL 3 AM EST THURSDAY...
...COASTAL FLOOD ADVISORY IN EFFECT FROM 9 AM TO 2 PM EST THURSDAY...

This Hazardous Weather Outlook is for southeast New York.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Winter Storm Warning.
   Coastal Flood Advisory.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Winter Storm Warning.
   Coastal Flood Advisory.

.SPOTTER INFORMATION STATEMENT...

Spotter activation according to Standard Operating Procedures is
requested and appreciated. Please safely report significant weather
conditions while following local, state, and CDC guidelines.

&&

This Hazardous Weather Outlook provides a summary of potential
widespread hazardous weather events that may reach NWS warning
criteria. Most long fused NWS watches, warnings, and advisories in
effect are highlighted.

Please refer to the latest NWS forecasts for weather not meeting NWS
warning criteria.

NYZ178-180030-
Southern Queens-
716 PM EST Wed Dec 16 2020

...WINTER STORM WARNING IN EFFECT UNTIL 1 PM EST THURSDAY...
...COASTAL FLOOD ADVISORY IN EFFECT UNTIL 1 AM EST THURSDAY...
...COASTAL FLOOD WARNING IN EFFECT FROM 8 AM TO 2 PM EST THURSDAY...

This Hazardous Weather Outlook is for southeast New York.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Winter Storm Warning.
   Coastal Flood Advisory.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Winter Storm Warning.
   Coastal Flood Warning.

.SPOTTER INFORMATION STATEMENT...

Spotter activation according to Standard Operating Procedures is
requested and appreciated. Please safely report significant weather
conditions while following local, state, and CDC guidelines.

&&

This Hazardous Weather Outlook provides a summary of potential
widespread hazardous weather events that may reach NWS warning
criteria. Most long fused NWS watches, warnings, and advisories in
effect are highlighted.

Please refer to the latest NWS forecasts for weather not meeting NWS
warning criteria.

NYZ179-180030-
Southern Nassau-
716 PM EST Wed Dec 16 2020

...WINTER STORM WARNING IN EFFECT UNTIL 1 PM EST THURSDAY...
...COASTAL FLOOD WARNING IN EFFECT UNTIL 1 AM EST THURSDAY...
...COASTAL FLOOD WARNING IN EFFECT FROM 8 AM TO 2 PM EST THURSDAY...

This Hazardous Weather Outlook is for southeast New York.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Winter Storm Warning.
   Coastal Flood Warning.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Winter Storm Warning.
   Coastal Flood Warning.

.SPOTTER INFORMATION STATEMENT...

Spotter activation according to Standard Operating Procedures is
requested and appreciated. Please safely report significant weather
conditions while following local, state, and CDC guidelines.

&&

This Hazardous Weather Outlook provides a summary of potential
widespread hazardous weather events that may reach NWS warning
criteria. Most long fused NWS watches, warnings, and advisories in
effect are highlighted.

Please refer to the latest NWS forecasts for weather not meeting NWS
warning criteria.

NYZ080-180030-
Southwestern Suffolk-
716 PM EST Wed Dec 16 2020

...WINTER STORM WARNING IN EFFECT UNTIL 1 PM EST THURSDAY...
...COASTAL FLOOD ADVISORY IN EFFECT UNTIL 3 AM EST THURSDAY...
...COASTAL FLOOD WARNING IN EFFECT FROM 8 AM TO 2 PM EST THURSDAY...

This Hazardous Weather Outlook is for southeast New York.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Winter Storm Warning.
   Coastal Flood Advisory.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Winter Storm Warning.
   Coastal Flood Warning.

.SPOTTER INFORMATION STATEMENT...

Spotter activation according to Standard Operating Procedures is
requested and appreciated. Please safely report significant weather
conditions while following local, state, and CDC guidelines.

&&

This Hazardous Weather Outlook provides a summary of potential
widespread hazardous weather events that may reach NWS warning
criteria. Most long fused NWS watches, warnings, and advisories in
effect are highlighted.

Please refer to the latest NWS forecasts for weather not meeting NWS
warning criteria.

ANZ330-335-338-340-345-180030-
Long Island Sound East of New Haven CT/Port Jefferson NY-
Long Island Sound West of New Haven CT/Port Jefferson NY-
New York Harbor-Peconic and Gardiners Bays-
South Shore Bays from Jones Inlet through Shinnecock Bay-
716 PM EST Wed Dec 16 2020

...GALE WARNING IN EFFECT UNTIL 1 PM EST THURSDAY...

This Hazardous Weather Outlook is for Atlantic coastal waters.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Gale Warning.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Gale Warning.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

&&

This Hazardous Weather Outlook provides a summary of potential
widespread hazardous weather events that may reach NWS warning
criteria. Most long fused NWS watches, warnings, and advisories in
effect are highlighted.

Please refer to the latest NWS forecasts for weather not meeting NWS
warning criteria.

ANZ350-353-355-180030-
Moriches Inlet NY to Montauk Point NY out 20 nm-
Fire Island Inlet NY to Moriches Inlet NY out 20 nm-
Sandy Hook NJ to Fire Island Inlet NY out 20 nm-
716 PM EST Wed Dec 16 2020

...STORM WARNING IN EFFECT UNTIL 7 AM EST THURSDAY...

This Hazardous Weather Outlook is for Atlantic coastal waters.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Storm Warning.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Storm Warning.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

&&

This Hazardous Weather Outlook provides a summary of potential
widespread hazardous weather events that may reach NWS warning
criteria. Most long fused NWS watches, warnings, and advisories in
effect are highlighted.

Please refer to the latest NWS forecasts for weather not meeting NWS
warning criteria.

In the hours before

Local storm report, Dec 16, 8:35 PM EST, 25 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW YORK NY
835 PM EST WED DEC 16 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0810 PM     SNOW             EAST WILLISTON          40.76N 73.63W
12/16/2020  M4.0 INCH        NASSAU             NY   PUBLIC

&&
Local storm report, Dec 16, 8:38 PM EST, 22 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW YORK NY
838 PM EST WED DEC 16 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0800 PM     SNOW             RIVERDALE               40.90N 73.91W
12/16/2020  M3.0 INCH        BRONX              NY   EMERGENCY MNGR

&&
Local storm report, Dec 16, 8:50 PM EST, 10 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW YORK NY
850 PM EST WED DEC 16 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0811 PM     SNOW             1 ENE TODT HILL         40.62N 74.10W
12/16/2020  M3.3 INCH        RICHMOND           NY   PUBLIC

            2 INCHES PER HOUR FROM 7 TO 8 PM.

&&
Local storm report, Dec 16, 8:53 PM EST, 7 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW YORK NY
853 PM EST WED DEC 16 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0835 PM     SNOW             STAMFORD                41.02N 73.56W
12/16/2020  M4.0 INCH        FAIRFIELD          CT   PUBLIC

&&
Local storm report, Dec 16, 8:56 PM EST, 4 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW YORK NY
856 PM EST WED DEC 16 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0830 PM     SNOW             WESTON                  41.22N 73.37W
12/16/2020  M3.1 INCH        FAIRFIELD          CT   TRAINED SPOTTER

&&
Local storm report, Dec 16, 8:57 PM EST, 3 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW YORK NY
857 PM EST WED DEC 16 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0850 PM     SNOW             SAINT JAMES             40.88N 73.15W
12/16/2020  M3.8 INCH        SUFFOLK            NY   TRAINED SPOTTER

&&

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

5 high wind. Local standard time, as filed.

High Wind, Northwest Suffolk

When
December 16, 9:00 PM EST to 10:00 PM EST
Where
Northwest Suffolk forecast zone
Measured
64 kt (74 mph) measured gust
Reported by
Mesonet
Coordinates
40.941, -72.685 (the zone’s center; the record gives no point)

Measured wind gust of 74 mph at 933 PM local standard time in Eatons Neck.

High Wind, Southeast Suffolk

When
December 17, 1:00 AM EST to 3:00 AM EST
Where
Southeast Suffolk forecast zone
Measured
57 kt (66 mph) measured gust
Reported by
Mesonet
Coordinates
40.941, -72.685 (the zone’s center; the record gives no point)

Measured wind gust of 66 mph recorded at 159 AM local standard time at Shinnecock.

High Wind, Northeast Suffolk

When
December 17, 3:00 AM EST to 4:00 AM EST
Where
Northeast Suffolk forecast zone
Measured
55 kt (63 mph) measured gust
Reported by
Mesonet
Coordinates
40.941, -72.685 (the zone’s center; the record gives no point)

Measured wind gust of 63 mph recorded at 350 AM local standard time at Great Gull Island (elevation of 53 feet above ground level).

High Wind, Northwest Suffolk

When
December 17, 7:00 AM EST to 8:00 AM EST
Where
Northwest Suffolk forecast zone
Measured
63 kt (72 mph) measured gust
Reported by
Mesonet
Coordinates
40.941, -72.685 (the zone’s center; the record gives no point)

Measured wind gust of 72 mph at 731 AM local standard time at Stony Brook.

High Wind, Northeast Suffolk

When
December 17, 9:00 AM EST to 10:00 AM EST
Where
Northeast Suffolk forecast zone
Measured
50 kt (58 mph) measured gust
Reported by
Mesonet
Coordinates
40.941, -72.685 (the zone’s center; the record gives no point)

Measured wind gust of 58 mph at 909 AM local standard time in Baiting Hollow (elevation 78 feet above ground level).

What these are

High Wind
Sustained non-thunderstorm winds of 40 mph or more for an hour, or gusts of 58 mph or more.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in New York in 2020Every state in 2020This day in weather historyWarnings in New York, December 2020

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 934341, 934346, 934345, 934342, 934344.