Alert archive / New York / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 22, NWS New York, NY

June 8, 20214 counties in New Jersey; 5 counties in New York

NWS New York, NY issued this severe thunderstorm warning at Jun 8, 2021, 3:29 PM EDT for 4 counties in New Jersey; 5 counties in New York. It was in force for 46 min. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jun 8, 2021, 3:29 PM EDT (19:29 UTC)
Expired
Jun 8, 2021, 4:15 PM EDT
In force
46 min
Issued by
NWS New York, NY
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Bergen County, NJ, Essex County, NJ, Hudson County, NJ, Union County, NJ, Bronx County, NY, Kings County, NY, New York County, NY, Queens County, NY, Richmond County, NY

The radar

The Philadelphia radar (KDIX), 81 km from the middle of the area, began a volume at 19:28 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Jun 8, 3:53 PM EDTMARINE TSTM WIND 521 Ese Jersey City, NJA MARINE THUNDERSTORM WIND GUST OF 45 KNOTS WAS MEASURED AT WILLIAM WALL STATION.
Jun 8, 3:53 PM EDTMARINE TSTM WIND 52William Wall, NJCORRECTS PREVIOUS MARINE TSTM WIND REPORT FROM 1 ESE JERSEY CITY FOR REPORT SOURCE. A MARINE THUNDERSTORM WIND GUST OF 45 KNOTS WAS MEASURED AT WILLIAM WALL STATION.
Jun 8, 4:14 PM EDTTSTM WND DMGAstoria, NYA TREE SNAPPED AND FELL ON A CAR, TAKING DOWN WIRES ON 31ST DRIVE.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 7.5 hours before the alert went out and 114 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Brookhaven, NY at 12:00Z on 2021-06-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 740 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2021-06-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 14 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
740 J/kg
Mixed-layer CIN
-106 J/kg
Mixed-layer LCL
1004 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
14 m²/s²
0-3 km storm-relative helicity
9 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

668 
WUUS51 KOKX 081929
SVROKX
NJC003-013-017-039-NYC005-047-061-081-085-082015-
/O.NEW.KOKX.SV.W.0022.210608T1929Z-210608T2015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service New York NY
329 PM EDT Tue Jun 8 2021

The National Weather Service in Upton NY has issued a

* Severe Thunderstorm Warning for...
  Hudson County in northeastern New Jersey...
  Union County in northeastern New Jersey...
  Southeastern Bergen County in northeastern New Jersey...
  Essex County in northeastern New Jersey...
  Queens County in southeastern New York...
  Richmond County in southeastern New York...
  Bronx County in southeastern New York...
  Kings County in southeastern New York...
  New York (Manhattan) County in southeastern New York...

* Until 415 PM EDT.

* At 327 PM EDT, severe thunderstorms were located along a line
  extending from Teterboro to Edison, moving east at 25 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Minor hail damage to vehicles is possible. Expect wind 
           damage to trees and power lines.

* Severe thunderstorms will be near...
  Hoboken and Lyndhurst around 335 PM EDT.
  Midtown Manhattan and Upper West Side around 340 PM EDT.
  Harlem and Long Island City around 345 PM EDT.
  Mott Haven and RFK Bridge around 350 PM EDT.
  Huguenot and Laguardia Airport around 355 PM EDT.
  Flushing and Throgs Neck Bridge around 400 PM EDT.
  Bayside around 405 PM EDT.
  Coney Island around 415 PM EDT.

This includes the following New York State COVID tent sites 
Staten Island OMH...
and Beverly Road in Brooklyn.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Large hail and damaging winds and continuous cloud to ground
lightning is occurring with these storms. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4050 7428 4056 7421 4060 7422 4060 7446
      4066 7440 4067 7446 4073 7438 4076 7437
      4076 7438 4088 7426 4082 7413 4086 7410
      4082 7378 4078 7374 4056 7397 4056 7401
      4060 7403 4053 7410 4051 7420 4050 7422
TIME...MOT...LOC 1927Z 277DEG 22KT 4086 7407 4052 7439 

HAIL...1.00IN
WIND...60MPH
 
$$

JM
1 follow-up statement
305 
WWUS51 KOKX 082002
SVSOKX

Severe Weather Statement
National Weather Service New York NY
402 PM EDT Tue Jun 8 2021

NJC003-013-017-039-NYC005-047-061-081-085-082015-
/O.CON.KOKX.SV.W.0022.000000T0000Z-210608T2015Z/
Hudson NJ-Union NJ-Bergen NJ-Essex NJ-Queens NY-Richmond NY-Bronx NY-
Kings NY-New York (Manhattan) NY-
402 PM EDT Tue Jun 8 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM EDT
FOR HUDSON...EASTERN UNION...SOUTHEASTERN BERGEN...SOUTHEASTERN
ESSEX...QUEENS...RICHMOND...BRONX...KINGS AND NEW YORK (MANHATTAN)
COUNTIES...

At 402 PM EDT, severe thunderstorms were located along a line
extending from Co-op City to near Huguenot, moving east at 25 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Minor hail damage to vehicles is possible. Expect wind 
         damage to trees and power lines.

These severe storms will be near...
  Flushing and Mott Haven around 405 PM EDT.
  Bayside around 410 PM EDT.
  Bay Ridge around 420 PM EDT.
  Coney Island and Bensonhurst around 425 PM EDT.
  Sheepshead Bay around 430 PM EDT.

This includes the following New York State COVID tent sites 
Staten Island OMH...
and Beverly Road in Brooklyn.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Continuous cloud to ground lightning is occurring with these storms.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4053 7425 4056 7421 4059 7421 4060 7422
      4060 7430 4063 7429 4066 7430 4069 7429
      4074 7421 4082 7412 4086 7410 4082 7378
      4078 7374 4056 7397 4056 7401 4060 7403
      4053 7410 4050 7422 4050 7426
TIME...MOT...LOC 2002Z 271DEG 20KT 4085 7384 4051 7416 

HAIL...1.00IN
WIND...60MPH
 
$$

JM

The office that day

Everything else NWS New York, NY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 8, 2:02 PM EDTAreal Flood AdvisoryOKXPassaic118 min
Jun 8, 2:26 PM EDTSpecial Weather StatementOKXBergen, Passaic49 min
Jun 8, 2:40 PM EDTSevere Thunderstorm WarningOKXBergen35 min
Jun 8, 2:58 PM EDTSevere Thunderstorm WarningOKXBergen47 min
Jun 8, 3:06 PM EDTAreal Flood AdvisoryOKXBergen114 min
Jun 8, 3:10 PM EDTSevere Thunderstorm WarningOKXBergen50 min
Jun 8, 3:14 PM EDTSpecial Weather StatementOKXEssex, Union46 min
Jun 8, 3:15 PM EDTFlash Flood WarningOKXBergen, Essex, Hudson, Passaic, Union3 hr
Jun 8, 3:30 PM EDTFlash Flood WarningOKXBergen3 hr
Jun 8, 3:49 PM EDTFlash Flood WarningOKXHudson2 hr
Jun 8, 4:15 PM EDTSevere Thunderstorm WarningOKXHudson43 min
Jun 8, 12:04 AM EDTMarine Dense Fog AdvisoryOKX9 hr
Jun 8, 12:24 PM EDTAreal Flood AdvisoryOKXOrange3 hr
Jun 8, 12:49 PM EDTSpecial Weather StatementOKXOrange41 min
Jun 8, 1:07 PM EDTFlash Flood WarningOKXOrange3 hr
Jun 8, 1:28 PM EDTSevere Thunderstorm WarningOKXOrange62 min
Jun 8, 2:07 PM EDTSevere Thunderstorm WarningOKXPutnam, Westchester38 min
Jun 8, 3:28 PM EDTSpecial Marine WarningOKX62 min
Jun 8, 4:10 PM EDTSpecial Marine WarningOKX43 min
Jun 8, 4:30 PM EDTSpecial Marine WarningOKX45 min
Jun 8, 4:31 PM EDTFlash Flood WarningOKXNassau, Queens56 min

Nearby

Severe Thunderstorm Warnings in New York, 2021Severe Thunderstorm Warnings in New Jersey, 2021Every severe thunderstorm warning in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.