Tornadoes and Hail in New York, November 13, 2021

Name: Tornadoes and Hail in New York, November 13, 2021
Start: 2021-11-13T14:01
End: 2021-11-13T16:31
Location: New York

November 13, 2021 · NWS OKX · 24 events in 7 counties and zones

A strong and slow moving frontal boundary, along with a potent mid level disturbance triggered strong to severe thunderstorms which impacted Southeastern New York. Six tornadoes also touched down across Long Island with one in Nassau County and five across Suffolk County.

Where it happened

Every event with a place to put it. 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: $2.5 million
Crop damage: None recorded
Events: 24

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.

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 Nov 13, 1:00 PM EST, 1 hour 1 minute earlier.

Area forecast discussion, Nov 13, 1:00 PM EST, 1 hour 1 minute before

Area Forecast Discussion
National Weather Service New York NY
100 PM EST Sat Nov 13 2021

.SYNOPSIS...
A cold front will sweep across this afternoon, followed by high
pressure building from the southwest tonight into Sunday. The
high will move offshore Sunday into Sunday night with a frontal
system moving in from the west. This system will have an area
of low pressure develop along it towards the Canadian Maritimes
Monday into Monday night. High pressure then builds in Monday
night and remains through mid week. A cold front moves through
late next week.

&&

.NEAR TERM /UNTIL 6 PM THIS EVENING/...
Forecast continues on track, except for the NYC area where bkn
mid and high level clouds ahead of the approaching front were
already starting to move in, skies were mostly sunny. Temps had
reached 60 in/around NYC, but dewpoints were still mostly on
the low side, still in the 40s, while lower 50s dewpoints were
draped across Long Island and southern NJ. This higher dewpoint
air should advect northward into this afternoon and help provide
instability for shower/tstms this afternoon. Disorganized line
already forming across the NW NJ/E PA border where there was a
lightning strike earlier. CAM's insistent on development of a
convective line along the approaching cold front over Orange
County southward into NJ between 17Z-18Z and sweeping E this
afternoon, with only minor differences in timing, moving across
NYC and the rest of the Hudson Valley between 18Z-20Z, SW CT
and western Long Island 19Z-21Z, and SE CT/eastern Long Island
20Z-22Z. Fcst soundings show a low CAPE, high shear environment,
with steep lapse rates due to sfc temps in the 50s to lower 60s
and H5 temps as cold as -25C, also strong low level winds
veering from SE to S over the lowest 1 km, with 1 km AGL winds
35-40 kt, and a push of boundary layer winds 40-45 kt right
behind the line. Latest HRRR/NAM-3km have shifted the focus of
potential severe wx a little farther south, so not only agree
with SPC slight risk for most of CT, but think this risk will
also encompass most of the CWA, except perhaps Orange and W
Passaic. So all modes of svr wx are on the table, primarily
wind, but marginally svr hail is also a risk given very cold H5
temps, and cannot totally rule out an isolated tornado given
veering wind profiles with height, but think this risk is lowest
of the three modes since 0-3km CAPE may be limited. Storms will
be fast movers, so the heaviest rain producers will only have
time to drop 1/4 to 1/2 inch at most.

&&

.SHORT TERM /6 PM THIS EVENING THROUGH MONDAY/...
For tonight by mid to late evening, the area will be behind the cold
front as it moves east of New England into the Atlantic. The low
pressure along the front further deepens, increasing the pressure
gradient between itself and high pressure over the South Central US.
Dry conditions along with gusty westerly winds will be in place
across the region. Clouds decrease late tonight with increase in
negative vorticity advection behind the mid level trough. Winds
will decrease as well and for outlying rural areas, they will have
more potential for frost formation with forecast lows in those
locations getting into the lower 30s while the rest of the
region has forecast lows mostly in the mid to upper 30s.

For Sunday, the pressure gradient partially weakens as the center of
high pressure moves along the Southeast US coast and then out into
the Atlantic. Westerly winds will decrease and then become more
southwest and increase towards evening as another frontal system
approaches from the west. Temperatures at 850mb will be about 6 to 7
degrees C colder than the previous afternoon. Would expect some more
sunshine in the morning with an increase in clouds in the afternoon
as the next mid level trough approaches. Cooler day is expected
with highs forecast mainly in the lower 50s.

For Sunday night, the SW winds increase further and will be gusty
with another area of rain and snow showers with the passage of the
next frontal system. In the mid levels, the positive vorticity
advection will increase as the trough axis approaches closer. The
more dynamic lifting ahead of the trough will be coming into place
across the region. Hardly any surface based CAPE so no thunderstorms
are expected with this system. However, the ambient airmass will be
colder so interior areas will have potential for snow showers while
areas of rain showers will be more probable closer to the coast.

For Monday, system with associated low pressure will be moving into
the Canadian Maritimes. The local region will once again have a
pressure gradient between low pressure to the northeast and high
pressure to the southwest. Another day with gusty W to NW winds is
expected. Midlevel trough will be large and linger across the
northeast Monday. Clouds will remain abundant with cyclonic flow
aloft. There will be a slight chance of showers. An even cooler
day is expected with highs forecast to reach mainly the upper
40s to near 50.

&&

.LONG TERM /MONDAY NIGHT THROUGH SATURDAY/...
High pressure builds in Monday night into Tuesday morning, and will
remain close by into Wednesday providing dry weather and seasonable
temperatures through Tuesday.  Dry weather continues into Wednesday,
but a return flow develops on the back side of the high, providing a
return to above normal temperatures Wednesday and Thursday, with
highs in the upper 50s to lower 60s both days. A frontal system is
then expected to approach on Thursday into Thursday night. This will
bring the next chance of rain showers to the area, although at this
time it appears that much of the precipitation could stay north of
the area. Though, this far out, there are uncertainties in track and
timing. High pressure ensues quickly behind the front to close out
the week.

&&

.AVIATION /18Z SATURDAY THROUGH THURSDAY/...
A secondary cold front moves through the terminals this afternoon.
High pressure then builds to the southwest.

VFR through much of the TAF period. Conditions may lower to
MVFR or less with any showers and thunderstorms, with better
chances of lowering categories for more northern terminals such
as KSWF and KHPN. Included tempo for the expected line of
thunderstorms between 18-20Z for the metro terminals and 20-23Z
for eastern terminals. Some thunderstorms may also be marginally
severe with hail and gusty winds possible. Thunderstorms
moving through may produce isolated wind gusts up to 60mph.

Winds SE to S late this morning ahead of the line of showers and
storms. Behind the secondary frontal passage, west winds
increase with gusts 30 to 35 kt. An isolated gust to 40 kt is
not out of the question. Winds and gusts diminish this evening,
with gusts likely ending by late this evening.

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

Amendments likely for showers and thunderstorms this afternoon.
Timing of the passage of a cold front this afternoon may be off
+/- an hour.

.OUTLOOK FOR 18Z SUNDAY THROUGH THURSDAY...
.Sunday...VFR.
.Monday...Chance of MVFR and showers.
.Tuesday...VFR. NW gusts 20-25 kt possible.
.Wednesday...VFR.
.Thursday... Mainly VFR. MVFR possible in showers.

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

&&

.MARINE...
SCA level ocean seas will remain through much of the weekend and
into Monday as well. Seas on the non-ocean waters expected to
remain below SCA criteria except for Eastern Long Island Sound
which is forecast to reach 3 to 5 ft. Winds will be increasing
today and will reach gale force across all waters by mid to late
this afternoon after cold fropa. This will continue across all
waters through early this evening and then by 10PM EST just
the ocean and eastern non-ocean waters will have gales
remaining. Most of the gales expected to end by 12 AM EST
Sunday but for eastern ocean will linger slightly longer, until
2 AM EST Sunday. For the remainder of the overnight tonight,
SCA level winds are expected for all waters. SCA level winds
linger into Sunday morning but then briefly lower below SCA
level thresholds. SCA level winds return for the ocean Sunday
night and then for all waters on Monday. Gales will be possible
on the ocean Monday also.

Wind gusts of 25-30 kt expected early Monday night, possibly
across all waters, as the pressure gradient increases between
the departing low and incoming high. However, winds will
diminish as the high continues to build into the waters. By
sunrise Tuesday, only the ocean waters and eastern sound may
still be at SCA criteria for wind, which could last through
Tuesday morning. Thereafter, winds will remain below 25 kt
across all waters.

Ocean seas will range from 5-8 ft Monday night, diminishing
late, falling below 5 ft from west to east Tuesday. Ocean seas
up to 5 ft are once again possible late day Wednesday into
Wednesday night.

&&

.HYDROLOGY...
No hydrologic concerns are anticipated through next week.

&&

.OKX WATCHES/WARNINGS/ADVISORIES...
CT...None.
NY...None.
NJ...None.
MARINE...Gale Warning until 10 PM EST this evening for ANZ335-338-345.
     Gale Warning until midnight EST tonight for ANZ331-332-340.
     Gale Warning until 2 AM EST Sunday for ANZ350-353.
     Gale Warning until midnight EST tonight for ANZ355.

&&

SYNOPSIS...JM/JP
NEAR TERM...BG/JM
SHORT TERM...JM
LONG TERM...JP
AVIATION...MW
MARINE...BG/JM/JP
HYDROLOGY...JM/JP

Hazardous weather outlook, Nov 13, 4:36 AM EST, 9 hours 25 minutes before

Hazardous Weather Outlook
National Weather Service New York NY
436 AM EST Sat Nov 13 2021

CTZ005>012-NJZ002-004-006-103>108-NYZ067>075-078>081-176>179-140945-
Northern Fairfield-Northern New Haven-Northern Middlesex-
Northern New London-Southern Fairfield-Southern New Haven-
Southern Middlesex-Southern New London-Western Passaic-
Eastern Passaic-Hudson-Western Bergen-Eastern Bergen-Western Essex-
Eastern Essex-Western Union-Eastern Union-Orange-Putnam-Rockland-
Northern Westchester-Southern Westchester-New York (Manhattan)-Bronx-
Richmond (Staten Island)-Kings (Brooklyn)-Northwest Suffolk-
Northeast Suffolk-Southwest Suffolk-Southeast Suffolk-
Northern Queens-Northern Nassau-Southern Queens-Southern Nassau-
436 AM EST Sat Nov 13 2021

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

.DAY ONE...Today and tonight.

A line of showers with embedded thunderstorms this afternoon has a
marginal risk of producing damaging winds.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Hazardous weather is not expected at this time that would meet NWS
warning criteria.

.SPOTTER INFORMATION STATEMENT...

Spotter activation according to Standard Operating Procedures is
requested and appreciated.

&&

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.

ANZ335-338-345-140945-
Long Island Sound West of New Haven CT/Port Jefferson NY-
New York Harbor-
South Shore Bays from Jones Inlet through Shinnecock Bay-
436 AM EST Sat Nov 13 2021

...GALE WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 10 PM EST THIS
EVENING...

This Hazardous Weather Outlook is for Atlantic coastal waters.

.DAY ONE...Today and tonight.

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

   Gale Warning.

In addition, a line of showers with embedded thunderstorms this
afternoon has a marginal risk of producing damaging winds.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Hazardous weather is not expected at this time that would meet NWS
warning criteria.

.SPOTTER INFORMATION STATEMENT...

Spotter activation according to Standard Operating Procedures is
requested and appreciated.

&&

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.

ANZ331-332-340-140945-
Long Island Sound East of New Haven CT/Port Jefferson NY to the
Mouth of the Connecticut River-
Long Island Sound East of the Mouth of the Connecticut River-
Peconic and Gardiners Bays-
436 AM EST Sat Nov 13 2021

...GALE WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO MIDNIGHT EST
TONIGHT...

This Hazardous Weather Outlook is for Atlantic coastal waters.

.DAY ONE...Today and tonight.

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

   Gale Warning.

In addition, a line of showers with embedded thunderstorms this
afternoon has a marginal risk of producing damaging winds.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Hazardous weather is not expected at this time that would meet NWS
warning criteria.

.SPOTTER INFORMATION STATEMENT...

Spotter activation according to Standard Operating Procedures is
requested and appreciated.

&&

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.

ANZ355-140945-
Sandy Hook NJ to Fire Island Inlet NY out 20 nm-
436 AM EST Sat Nov 13 2021

...GALE WARNING IN EFFECT UNTIL MIDNIGHT EST TONIGHT...

This Hazardous Weather Outlook is for Atlantic coastal waters.

.DAY ONE...Today and tonight.

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

   Gale Warning.

In addition, a line of showers with embedded thunderstorms this
afternoon has a marginal risk of producing damaging winds.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Gales will be possible on Monday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation according to Standard Operating Procedures is
requested and appreciated.

&&

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.

ANZ350-353-140945-
Moriches Inlet NY to Montauk Point NY out 20 nm-
Fire Island Inlet NY to Moriches Inlet NY out 20 nm-
436 AM EST Sat Nov 13 2021

...GALE WARNING IN EFFECT UNTIL 2 AM EST SUNDAY...

This Hazardous Weather Outlook is for Atlantic coastal waters.

.DAY ONE...Today and tonight.

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

   Gale Warning.

In addition, a line of showers with embedded thunderstorms this
afternoon has a marginal risk of producing damaging winds.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Gales will be possible on Monday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation according to Standard Operating Procedures is
requested and appreciated.

&&

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

Special weather statement, Nov 13, 11:26 AM EST, 2 hours 35 minutes before

Special Weather Statement
National Weather Service New York NY
1126 AM EST Sat Nov 13 2021

CTZ005>012-NJZ002-004-006-103>108-NYZ067>075-078>081-176>179-
132200-
Northern Fairfield-Northern New Haven-Northern Middlesex-
Northern New London-Southern Fairfield-Southern New Haven-
Southern Middlesex-Southern New London-Western Passaic-
Eastern Passaic-Hudson-Western Bergen-Eastern Bergen-
Western Essex-Eastern Essex-Western Union-Eastern Union-Orange-
Putnam-Rockland-Northern Westchester-Southern Westchester-
New York (Manhattan)-Bronx-Richmond (Staten Island)-
Kings (Brooklyn)-Northwest Suffolk-Northeast Suffolk-
Southwest Suffolk-Southeast Suffolk-Northern Queens-
Northern Nassau-Southern Queens-Southern Nassau-
1126 AM EST Sat Nov 13 2021

...LINE OF SHOWERS AND THUNDERSTORMS WITH GUSTY WINDS AND HAIL
EXPECTED THIS AFTERNOON...

* A cold front moving across this afternoon will be accompanied
  by a line of showers and thunderstorms. This line should develop
  over western portions of New Jersey and the lower Hudson Valley
  after midday and sweep across the rest of the area this
  afternoon, moving across northeastern New Jersey and the rest of
  the lower Hudson Valley before 2 PM. New York City and vicinity
  between 1 to 3 PM. Southwestern Connecticut and Western Long
  Island from 2 to 4 PM. Southeastern Connecticut and eastern Long
  Island from 3 to 5 PM.

* Wind gusts of 40 to 50 mph, brief heavy rain of one quarter to
  one half inch, and small hail are possible as this line moves
  through. The strongest thunderstorms could produce damaging wind
  gusts over 60 mph and hail close to 1 inch in diameter. Some
  downed trees, limbs, and power lines may occur.

* Severe thunderstorm watches and warnings may be a possibility
  for this afternoon as the situation unfolds. Keep an eye to the
  sky and listen to NOAA All Hazards Weather Radio and broadcast
  media for further details.

Goodman

Special weather statement, Nov 13, 12:47 PM EST, 1 hour 14 minutes before

Special Weather Statement
National Weather Service New York NY
1247 PM EST Sat Nov 13 2021

NJZ002-004-103-105-107-NYZ067-069-131915-
Western Bergen NJ-Western Passaic NJ-Western Union NJ-
Western Essex NJ-Eastern Passaic NJ-Rockland NY-Orange NY-
1247 PM EST Sat Nov 13 2021

...An area of strong thunderstorms will impact portions of Passaic,
western Union, northwestern Bergen, western Essex, Orange and
Rockland Counties through 215 PM EST...

At 1246 PM EST, Doppler radar was tracking an area of strong
thunderstorms centered over Long Valley, or 14 miles west of
Morristown, moving northeast at 40 mph.

HAZARD...Wind gusts of 50 to 55 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Wayne, Plainfield, Newburgh, Middletown, West Milford, Summit,
Millburn, Ramsey, Ringwood, Pompton Lakes, Suffern, Port Jervis,
Monroe, Caldwell and Walden.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

A Severe Thunderstorm Watch remains in effect until 700 PM EST for
northeastern New Jersey...and southeastern New York.

&&

LAT...LON 4149 7476 4150 7448 4163 7426 4158 7413
      4161 7413 4159 7395 4146 7400 4140 7396
      4060 7436 4059 7446 4067 7440 4067 7446
      4076 7436 4090 7434 4090 7427 4097 7428
      4105 7445 4104 7450 4120 7437 4136 7470
TIME...MOT...LOC 1746Z 205DEG 34KT 4076 7476

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...55 MPH

JC

Local storm report, Nov 13, 1:24 PM EST, 37 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW YORK NY
124 PM EST SAT NOV 13 2021

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

0115 PM     HAIL             BLOOMINGDALE            41.03N 74.33W
11/13/2021  E1.00 INCH       PASSAIC            NJ   TRAINED SPOTTER

&&

The radar

The Brookhaven radar (KOKX), 95 km away, was scanning. The volume nearest the first event began at 19:03 UTC.

Open the radar archive at this moment

Event by event

10 thunderstorm wind, 8 hail, 6 tornado. Local standard time, as filed.

Hail, Westchester

When: November 13, 2:01 PM EST
Where: Westchester County, 1.25 mi ESE of Crompond
Measured: 0.75 in hail
Reported by: Public
Coordinates: 41.270, -73.860

Hail of 3/4 inch in diameter was reported.

Hail, Putnam

When: November 13, 2:15 PM EST
Where: Putnam County, 1.48 mi NNE of Lake Mahopac
Measured: 1 in hail
Reported by: Public
Coordinates: 41.390, -73.740

Hail of 1 inch in diameter was reported.

Hail, New York

When: November 13, 2:15 PM EST
Where: New York County, 0.5 mi N of New York
Measured: 1.25 in hail
Reported by: CoCoRaHS
Coordinates: 40.737, -74.001

Hail of 1.25 inches in diameter was measured in Greenwich Village.

Hail, Kings

When: November 13, 2:16 PM EST
Where: Kings County, 3.45 mi S of New York
Measured: 0.75 in hail
Reported by: Public
Coordinates: 40.680, -74.000

Hail of 3/4 inch was reported.

Hail, New York

When: November 13, 2:17 PM EST
Where: New York County, 0.42 mi NE of New York
Measured: 0.75 in hail
Reported by: Public
Coordinates: 40.734, -73.994

Hail of 3/4 inch diameter was measured.

Thunderstorm Wind, New York

When: November 13, 2:18 PM EST
Where: New York County, 2.2 mi WSW of Central Park
Measured: 52 kt (60 mph) estimated gust
Property damage: $10,000
Reported by: Emergency Manager
Coordinates: 40.770, -73.990

NYPD reported a light pole blown down onto an MTA bus. No injuries.

Hail, Westchester

When: November 13, 2:30 PM EST
Where: Westchester County, 0.69 mi S of Mt Vernon
Measured: 0.75 in hail
Reported by: Trained Spotter
Coordinates: 40.910, -73.850

Hail of 3/4 inch in diameter was reported.

Tornado, Nassau

When: November 13, 2:37 PM EST to 2:55 PM EST
Where: Nassau County, 0.35 mi S of Hewlett to 0.82 mi WNW of Levittown
Rating: EF0
Path length: 13.14 mi
Path width: 50 yd
Property damage: $300,000
Reported by: NWS Storm Survey
Coordinates: 40.625, -73.720

A tornado briefly touched down in a few locations. The first report of a touchdown was in Woodmere where several trees and powerlines were down. From there, the tornado lifted and skipped in a few locations as it traveled nearly 50 mph to the northeast towards Hempstead, Uniondale, and Levittown. Here, damage reports were sporadic, but in Uniondale NY, the tornado touched down again and tore a roof off a two-story colonial building on Liberty Street, which landed on a nearby house. Scattered debris, including shingles, insulation and twisted siding was thrown into the next block up, including the intersection of Emerson and Goodrich Street. Significant damage was also noted near Clover Lane in Levittown, where a large tree was felled onto a house before the tornado lifted.

Hail, Queens

When: November 13, 2:40 PM EST
Where: Queens County, 1.72 mi ENE of Queens Vlg
Measured: 0.75 in hail
Reported by: Public
Coordinates: 40.730, -73.720

Hail of 3/4 inch was reported.

Hail, Nassau

When: November 13, 2:50 PM EST
Where: Nassau County, 0.69 mi S of Mitchell Afb
Measured: 1.5 in hail
Reported by: Trained Spotter
Coordinates: 40.710, -73.600

Hail of 1.5 inches in diameter was reported.

Thunderstorm Wind, Nassau

When: November 13, 2:50 PM EST
Where: Nassau County, 0.52 mi E of North Wantagh
Measured: 61 kt (70 mph) estimated gust
Property damage: $13,000
Reported by: Public
Coordinates: 40.720, -73.510

Large tree reported down on house in Levittown.

Thunderstorm Wind, Nassau

When: November 13, 3:00 PM EST
Where: Nassau County, 0.87 mi SW of Old Bethpage
Measured: 52 kt (60 mph) estimated gust
Property damage: $1,000
Reported by: Public
Coordinates: 40.760, -73.460

Large tree branches reported down.

Tornado, Suffolk

When: November 13, 3:20 PM EST to 3:22 PM EST
Where: Suffolk County, 1.24 mi SW of East Islip to 0.71 mi SW of East Islip
Rating: EF0
Path length: 0.52 mi
Path width: 50 yd
Property damage: $500,000
Reported by: NWS Storm Survey
Coordinates: 40.718, -73.197

Survey team confirmed an EF0 tornado in East Islip, NY, a narrow tornado of 50 yard width likely touched down at the southwestern end of Hollins Lane, and then continued northeast over Brushwood Court, Bayview Avenue, and Josephine Lane, and then finally over Kay Court, before lifting over the John F. Kennedy Elementary School sport fields. A few dozen large oak, maple, and pine trees were uprooted and laying in east or northeast direction. Several trees were also snapped at the trunk or had large branches sheared off along this path. In addition, minor roof and siding damage was observed for several houses, as well as leaf splater on south and east sides of several houses. This tornadic circulation was likely on the northwest side of a 400 yd. swath of 65 to 75 mph west to southwest straight line winds causing isolated large trees to be uprooted and several large limbs broken.

As mentioned, the tornado likely lifted over the John F. Kennedy Elementary School sport fields, becoming a funnel cloud. This funnel cloud may have briefly touched down as a weak tornado in the Frog Lane and Jade Street area of Oakdale, resulting in a very large, but partially rotted oak tree to topple onto and destroy a home. The funnel cloud was videotaped by the public, looking southwest from the Old Navy Department store on Johnson Avenue (just north of Sunrise Highway), but no further damage was noted with this storm.

Based on radar velocity signatures and damage orientation in relation to the general northeast motion of the parent storm, this was determined to be tornado damage, with degree of damage indicating EF0 damage.

Thunderstorm Wind, Suffolk

When: November 13, 3:30 PM EST
Where: Suffolk County, 0.69 mi S of East Islip
Measured: 61 kt (70 mph) estimated gust
Property damage: $20,000
Reported by: Trained Spotter
Coordinates: 40.720, -73.180

Large branches, trees, and power lines reported down.

Tornado, Suffolk

When: November 13, 3:40 PM EST to 3:42 PM EST
Where: Suffolk County, 1.23 mi NNE of Hagerman to 2.02 mi N of North Bellport
Rating: EF0
Path length: 1.28 mi
Path width: 35 yd
Property damage: $100,000
Reported by: NWS Storm Survey
Coordinates: 40.787, -72.942

A National Weather Service Storm Survey team in coordination with|Suffolk County Fire and Rescue and Emergency Services confirmed an EF0 |Tornado in North Bellport, NY. A narrow tornado likely touched down in a forest |of pine trees to the south of Sunrise Highway, between Bellport Avenue and Martha Avenue Ballpark leaving a 35 yard northward tracking path of sheared tree limbs and snapped tree trunks towards Sunrise Highway.

Thereafter the tornado likely tracked northeast across Sunrise Highway heading towards The Brookhaven Landfill. In this process it flattened the Sunrise Highway Exit 56 sign, on the westbound side of Sunrise Highway just to the east of the station road off ramp. This approximate location corresponds to a public video showing a condensation funnel and considerable tree debris moving northeast across Sunrise Highway.

The tornado likely tracked or skipped northeast across the landfill, before causing extensive roof damage and blowing out the north facing garage doors of the Brookhaven Recycling Center. The south side of the recycling center is always wide open, likely allowing for south to southwest winds around the tornadic circulation to|enter the building and cause the extensive roof and garage damage. This Recycling Center is located on the Northeast side of the landfill, which was the end of the visible tornadic path.

Based on radar velocity signatures and damage orientation in relation to the general northeast motion of the parent storm, the damage survey above is determined to be EF0 tornadic damage with winds of 70 to 85 mph.

Tornado, Suffolk

When: November 13, 3:42 PM EST to 3:50 PM EST
Where: Suffolk County, 0.48 mi ESE of South Haven to 0.58 mi WNW of South Manor
Rating: EF1
Path length: 5.3 mi
Path width: 50 yd
Property damage: $900,000
Reported by: NWS Storm Survey
Coordinates: 40.798, -72.871

A National Weather Service Storm Survey Team confirmed an EF1 tornado in Shirely, NY. A tornado likely touched down just southwest of Francine Place and Mastic Blvd, travelling east northeast along the Long Island Railroad tracks and adjacent backyards. |Numerous oak, maple, and pine trees were uprooted and laying in a northerly direction. Several trees were also snapped at the trunk or had large branches sheared off along this path. In addition, minor roof and siding damage was observed for several houses, as well as leaf splatter on south and east sides. The damage swath at this point was only about 25 yards wind. The tornado then hooked northeast over the Lidl Supermarket (Southwestern corner of the Shopping Center Complex), |flipping over a 5 Ton air handler unit on the roof, before tearing off the parapet and collapsing the covered walkway of the Chiptole Mexican Grill on the northeast corner of the Shopping Center. The damage path remained about 25 yards, but damage was consistent with EF1 winds of 95 to 105 mph.

Public video showed the apparent tornadic circulation lifting northeast across the intersection of William Floyd Parkway and Montauk Highway towards the Applebee's Shopping Center, with debris being thrown in one direction then another. Siding and Shingles from the Chiptole were thrown northeast about 250 yards across this |intersection and into The Applebee's Shopping Center. Other than the debris, some small trees were uprooted in the parking lot and laying to the northeast and flashing was ripped off the south side of the Applebee's and unoccupied adjacent retail store. The tornadic circulation may have briefly lifted at this point, with about a 50 yd. swath of 65 to 75 mph straight line winds across this shopping center.

The tornadic circulation then touched down once again to the northeast of the Applebee's Shopping Center lifting the entire roof off a 2 story multi family residence on the corner of Grand Avenue and McGraw Street. The roof was tossed as far as 150 yards to the north, into the backyard of neighboring houses to the north on Grand Avenue. One section of this roof, actually impaled itself into the side of the neighboring house to the north, and made such a strong impact that it skewed the vertical structure of that house. Based on the extent of structural damage to these houses, and adjacent 50 yd. swath of uprooted, snapped or sheared large trees, this damage was consistent |with EF1 winds of around 100 mph. The tornado strength likely peaked at this point. The entirety of the EF1 Tornadic damage path to the southwest and northeast of Montauk High was around 1/4 mile.

The tornado would then make its way north across Sunrise Highway, skipping its way northeast for the next 4 1/2 miles, with areas of damage consistent with an EF0. On its path it continued northeast through Brookhaven Calabro Airport, flipping over or shift a few small single engine planes, thereafter it moved northeast through Pancho Drive, Titmus Drive, Abbott Avenue, and Burney Blvd just to the east northeast of the airport. Several large trees were uprooted, trunks snapped or branches sheared in an approximately 50 yd. path, with accompanying minor roof, siding and fencing damage in this area. The tornado likely skipped north to the intersection of Barnes Roads and Moriches-Middle Island Road with a small area of additional tree damage, before making a final nearly mile long and 50 yd. wide tornado damage path northeast across Pine Hills Golf Course, and then through the neighborhoods of Foreston Circle, Eagle Lane, Nestledown Avenue, Wading River Road, Tupelo Street and then across to the intersection of Silas Woods Road and South Street before finally lifting. Several dozens of large hard and soft wood trees were uprooted and laying in a Northerly or Northeast |direction, as compared to the east northeast direction of storm movement. In addition, numerous tree tops were completely sheared to stubs and tree trunks snapped. Minor roof and siding damage was observed for numerous houses along this path, with several fences and chimneys destroyed. A large north / south facing camper on Tupelo Drive as rolled westward on its side. The described one mile long, 50 yd. wide convergent tornadic damage pattern was consistent with an EF1 tornado with 85 to 95 |mph winds and was flanked to the southeast by a 500 yd. path of scattered tree and powerline damage and minor structural damage consistent with 65 to 75 mph southwesterly straight line winds.

Tornado, Suffolk

When: November 13, 3:53 PM EST to 4:00 PM EST
Where: Suffolk County, 0.65 mi NNE of Remsenburg to 0.23 mi NW of Quiogue
Rating: EF0
Path length: 3.5 mi
Path width: 35 yd
Property damage: $300,000
Reported by: NWS Storm Survey
Coordinates: 40.809, -72.695

A National Weather Service Storm Survey Team in coordination with Suffolk County Fire Rescue and Emergency Services confirmed an EF0 Tornado in Remsenburg, NY to Westhampton, NY area. A narrow tornado of 35 yd. width likely touched down at the corner of Ring Neck Road and South Country Road and then continued northeast across Riverview and Crestview Drive, then continuing northeast over Brushy Neck Lane and Jagger Lane Court, up to the bend in Montauk Highway near East Ridge Court.|Several large hardwood trees were uprooted and laying in northeast direction along this path, snapped at the trunk or had large branches sheared, with collateral power line and power pole damage. Several smaller shrubs and young trees were also flattened to the ground. In addition, minor roof and siding damage was observed for several houses along this path. Thereafter the tornado likely skipped along continuing northeast across the cemetery at Station Road to the union of Hazelwood and Rodgers Avenue and South Perimeter Road, with the above describes damage being more intermittent.

The most extensive structural damage occurred at the end of the visible tornadic path at the Department of Public Works Salt Barn on South Perimeter Road on the south side|of Westhampton Gabreski Airport. The north facing reinforced cinder wall of the Salt Barn was blown out. Indications are the roof may have briefly lifted as south to southwest winds with the tornadic circulation blasted into the south facing opening, culminating in the north wall being blown out.

Thunderstorm Wind, Suffolk

When: November 13, 3:55 PM EST
Where: Suffolk County, 1.85 mi ESE of Center Moriches
Measured: 69 kt (79 mph) measured gust
Reported by: Mesonet
Coordinates: 40.788, -72.749

A thunderstorm wind gust of 79 mph was measured at East Moriches CG station.

Thunderstorm Wind, Suffolk

When: November 13, 4:00 PM EST
Where: Suffolk County, 1.25 mi ESE of Speonk
Measured: 61 kt (70 mph) estimated gust
Property damage: $2,000
Reported by: NWS Employee
Coordinates: 40.810, -72.680

Large tree reported down on road.

Thunderstorm Wind, Suffolk

When: November 13, 4:00 PM EST
Where: Suffolk County, 2.34 mi NE of Calverton
Measured: 61 kt (70 mph) estimated gust
Property damage: $8,000
Reported by: Fire Department/Rescue
Coordinates: 40.925, -72.699

Trees reported down on wires on Old Country Road.

Tornado, Suffolk

When: November 13, 4:08 PM EST to 4:14 PM EST
Where: Suffolk County, 0.23 mi WNW of West Tiana to 0.74 mi ESE of North Sea
Rating: EF0
Path length: 8.2 mi
Path width: 35 yd
Property damage: $300,000
Reported by: NWS Storm Survey
Coordinates: 40.851, -72.534

A National Weather Service Storm Survey Team in coordination with Suffolk County Fire Rescue and Emergency Services confirmed an EF0 Tornado in the Hampton Bays to North Sea area of Suffolk County. A narrow tornado likely touched down near Tiana Circle, perhaps coming in as a waterspout off of Shinnecock Bay and downing several small pines in a northeasterly direction.

The tornadic circulation likely moved northeast across Smith Creek, with the magnitude of tree damage increasing as it touched down near Mill Race Road. From that point, a 35 yd. wide path of hardwood trees was observed to be either uprooted and laying in a |northeast direction, snapped at the trunk, or having large branches sheared off, continuing northeast through Columbia Street and Washington Avenue, to Hudson Street and Sherman Avenue, and then up to Lynncliff Road and Palo Alto Drive. In addition, minor roof and siding damage was observed for a few houses along this path. This included a homeowner on Hudson Street reporting that a screen door was pulled off the rear of their home and tossed 50 yards northeast of their home as well as a heavy wrought iron table and large gas grill picked up and pinned against their fence.|In addition, a homeowner on Lynncliff Road reported their roof shingles standing on edge as the tornadic circulation came through.

Thereafter, the tornadic circulation likely crossed the Eastern half of Shinnecock Bay, with an intermittent 35 yd. width path of mainly hardwood tree damage skipping along|Peconic Road and Montauk Highway, before likely crossing Shinnecock Hills Golf Course|and a heavily wooded area to the northeast. The tornadic circulation likely dissipated after producing tree damage on Marys Lane, east of North Sea Rd. in North Sea. No visible damage was noted or reported to the northeast of this location, including the Southampton Youth Sports Center.

Based on radar velocity signatures and damage orientation in relation to the general northeast motion of the parent storm, the damage survey above is determined to be EF0 Tornadic damage with winds of 70 to 85 mph.

Thunderstorm Wind, Suffolk

When: November 13, 4:24 PM EST
Where: Suffolk County, 1.47 mi SSW of Shelter Is
Measured: 61 kt (70 mph) estimated gust
Property damage: $6,000
Reported by: Law Enforcement
Coordinates: 41.050, -72.360

Two poles reported down on Petticoat Lane.

Thunderstorm Wind, Suffolk

When: November 13, 4:26 PM EST
Where: Suffolk County, 1.54 mi ENE of Shelter Is
Measured: 61 kt (70 mph) estimated gust
Property damage: $3,000
Reported by: Law Enforcement
Coordinates: 41.080, -72.323

Large tree reported down on Willow Lane.

Thunderstorm Wind, Suffolk

When: November 13, 4:31 PM EST
Where: Suffolk County, 0.87 mi SW of East Hampton
Measured: 61 kt (70 mph) estimated gust
Property damage: $20,000
Reported by: Law Enforcement
Coordinates: 40.960, -72.190

Numerous trees and power lines reported down.

What these are

Hail: Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
Thunderstorm Wind: Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.
Tornado: A violently rotating column of air in contact with the ground and extending from a thunderstorm, filed with its path, width and Fujita or Enhanced Fujita rating from the damage survey.

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

The same day elsewhere

Every storm in New York in 2021 Every state in 2021 This day in weather history The tornado archive for New York, 2021 Warnings in New York, November 2021

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: 988677, 988678, 988679, 988680, 988681, 988682, 988683, 988688, 988687, 988684, 990610, 990611, 988689, 990620, 990029, 990037, 990092, 990624, 990630, 990773, 990113, 990785, 990788, 990789.