Alert archive / New York / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 23, NWS New York, NY

June 8, 20216 counties in New York; Hudson County, New Jersey

NWS New York, NY issued this severe thunderstorm warning at Jun 8, 2021, 4:15 PM EDT for 6 counties in New York; Hudson County, New Jersey. It was in force for 43 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, 4:15 PM EDT (20:15 UTC)
Expired: Jun 8, 2021, 4:58 PM EDT
In force: 43 min
Issued by: NWS New York, NY
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Hudson County, NJ, Bronx County, NY, Kings County, NY, Nassau County, NY, New York County, NY, Queens County, NY, Richmond County, NY

The radar

The Brookhaven radar (KOKX), 85 km from the middle of the area, began a volume at 20:18 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

Time	Report	Where	Remark
Jun 8, 4:20 PM EDT	TSTM WND DMG	East Tremont, NY	DOWNED TREES REPORTED ACROSS THE BRONX WITH TREE SERVICE REQUESTED WITH TIME ESTIMATED BY RADAR.
Jun 8, 4:43 PM EDT	TSTM WND DMG	Howard Beach, NY	TREES REPORTED DOWN ACROSS QUEENS WITH TREE SERVICE REQUESTED.
Jun 8, 4:57 PM EDT	TSTM WND DMG	1 E East Rockaway, NY	LARGE TREE LIMB FELL DOWN ONTO SUV CAUSING DAMAGE ON ATLANTIC AVE IN OCEANSIDE.

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, 8.3 hours before the alert went out and 85 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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.

927 
WUUS51 KOKX 082015
SVROKX
NJC017-NYC005-047-059-061-081-085-082115-
/O.NEW.KOKX.SV.W.0023.210608T2015Z-210608T2115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service New York NY
415 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...
  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...
  Nassau County in southeastern New York...

* Until 515 PM EDT.

* At 414 PM EDT, severe thunderstorms were located along a line
  extending from East Tremont to Sandy Hook, moving northeast at 20
  mph.

  HAZARD...65 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...
  Flushing and Mott Haven around 420 PM EDT.
  Throgs Neck Bridge and Bayside around 425 PM EDT.
  Great Neck and City Island around 430 PM EDT.
  Manhasset around 435 PM EDT.
  Port Washington and Sands Point around 440 PM EDT.
  Glen Cove and Rockaway Beach around 450 PM EDT.
  Oyster Bay and Kennedy Airport around 500 PM EDT.
  Long Beach and Woodmere around 505 PM EDT.
  Valley Stream around 510 PM EDT.
  Freeport and Garden City around 515 PM EDT.

This includes the following New York State COVID tent sites 
Bay Plaza...
New Rochelle...
Aqueduct Racetrack...
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 4081 7404 4082 7402 4080 7399 4087 7394
      4088 7379 4090 7378 4089 7376 4086 7375
      4088 7372 4086 7366 4092 7364 4092 7351
      4057 7357 4057 7376 4053 7394 4056 7395
      4056 7401 4060 7404 4053 7410 4051 7420
TIME...MOT...LOC 2014Z 240DEG 19KT 4084 7388 4047 7399 

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

JM

1 follow-up statement

866 
WWUS51 KOKX 082058
SVSOKX

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

NJC017-NYC005-047-059-061-081-085-082108-
/O.CAN.KOKX.SV.W.0023.000000T0000Z-210608T2115Z/
Hudson NJ-Queens NY-Richmond NY-Bronx NY-Kings NY-
New York (Manhattan) NY-Nassau NY-
458 PM EDT Tue Jun 8 2021

...THE SEVERE THUNDERSTORM WARNING FOR HUDSON...QUEENS...RICHMOND...
BRONX...KINGS...NEW YORK (MANHATTAN) AND NASSAU COUNTIES IS
CANCELLED...
            
The storms which prompted the warning have weakened below severe
limits. Therefore the warning has been cancelled. 

LAT...LON 4081 7404 4082 7402 4080 7399 4087 7394
      4088 7379 4090 7378 4089 7376 4086 7375
      4088 7372 4086 7366 4092 7364 4092 7351
      4057 7357 4057 7376 4053 7394 4056 7395
      4056 7401 4060 7404 4053 7410 4051 7420
TIME...MOT...LOC 2057Z 240DEG 19KT 4095 7362 4058 7373 

$$

Goodman

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 8, 12:04 AM EDT	Marine Dense Fog Advisory	OKX		9 hr
Jun 8, 12:24 PM EDT	Areal Flood Advisory	OKX	Orange	3 hr
Jun 8, 12:49 PM EDT	Special Weather Statement	OKX	Orange	41 min
Jun 8, 1:07 PM EDT	Flash Flood Warning	OKX	Orange	3 hr
Jun 8, 1:28 PM EDT	Severe Thunderstorm Warning	OKX	Orange	62 min
Jun 8, 2:02 PM EDT	Areal Flood Advisory	OKX	Orange	118 min
Jun 8, 2:07 PM EDT	Severe Thunderstorm Warning	OKX	Putnam, Westchester	38 min
Jun 8, 2:26 PM EDT	Special Weather Statement	OKX	Putnam, Rockland, Westchester	49 min
Jun 8, 2:40 PM EDT	Severe Thunderstorm Warning	OKX	Rockland, Westchester	35 min
Jun 8, 3:06 PM EDT	Areal Flood Advisory	OKX	Rockland, Westchester	114 min
Jun 8, 3:10 PM EDT	Severe Thunderstorm Warning	OKX	Bronx, Rockland, Westchester	50 min
Jun 8, 3:28 PM EDT	Special Marine Warning	OKX		62 min
Jun 8, 3:29 PM EDT	Severe Thunderstorm Warning	OKX	Bronx, Kings, New York, Queens, Richmond	46 min
Jun 8, 3:30 PM EDT	Flash Flood Warning	OKX	Rockland, Westchester	3 hr
Jun 8, 3:49 PM EDT	Flash Flood Warning	OKX	Bronx, Kings, New York, Queens, Richmond	2 hr
Jun 8, 4:10 PM EDT	Special Marine Warning	OKX		43 min
Jun 8, 4:30 PM EDT	Special Marine Warning	OKX		45 min
Jun 8, 4:31 PM EDT	Flash Flood Warning	OKX	Nassau, Queens	56 min
Jun 8, 2:58 PM EDT	Severe Thunderstorm Warning	OKX	Bergen	47 min
Jun 8, 3:14 PM EDT	Special Weather Statement	OKX	Essex, Union	46 min
Jun 8, 3:15 PM EDT	Flash Flood Warning	OKX	Bergen, Essex, Hudson, Passaic, Union	3 hr

Nearby

Severe Thunderstorm Warnings in New York, 2021 Severe Thunderstorm Warnings in New Jersey, 2021 Every 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.