Alert archive / New Jersey / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 9, NWS New York, NY

May 26, 2021Richmond County, New York; 5 counties in New Jersey

NWS New York, NY issued this severe thunderstorm warning at May 26, 2021, 6:12 PM EDT for Richmond County, New York; 5 counties in New Jersey. It was in force for 46 min. 4 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
May 26, 2021, 6:12 PM EDT (22:12 UTC)
Expired
May 26, 2021, 6:58 PM EDT
In force
46 min
Issued by
NWS New York, NY
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Bergen County, NJ, Essex County, NJ, Hudson County, NJ, Passaic County, NJ, Union County, NJ, Richmond County, NY

The radar

The Philadelphia radar (KDIX), 84 km from the middle of the area, began a volume at 22:14 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
May 26, 6:33 PM EDTTSTM WND DMGChatham, NJMULTIPLE TREE LIMBS DOWN IN THE AREA. TIME REPORTED FROM THE OBSERVER.
May 26, 6:35 PM EDTTSTM WND DMG1 Ene Mountainside, NJLARGE TREE WAS UPROOTED ON CHARLES STREET AND IS LEANING ON POWER LINES.
May 26, 6:51 PM EDTTSTM WND DMGFair Lawn, NJLARGE TREE LIMB DOWN. TIME ESTIMATED BY RADAR.
May 26, 7:03 PM EDTMARINE TSTM WIND 552 Ese Jersey City, NJMESONET STATION FW2280 JERSEY CITY.

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
May 26, 2:48 PM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 10.2 hours before the alert went out and 118 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 2021-05-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 5 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 2021-05-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 164 square meters per square second.193958Sfc1 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
5 J/kg
Mixed-layer CIN
-233 J/kg
Mixed-layer LCL
554 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
164 m²/s²
0-3 km storm-relative helicity
159 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

997 
WUUS51 KOKX 262212
SVROKX
NJC003-013-017-031-039-NYC085-262315-
/O.NEW.KOKX.SV.W.0009.210526T2212Z-210526T2315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service New York NY
612 PM EDT Wed May 26 2021

The National Weather Service in Upton NY has issued a

* Severe Thunderstorm Warning for...
  Hudson County in northeastern New Jersey...
  Eastern Passaic County in northeastern New Jersey...
  Union County in northeastern New Jersey...
  Southeastern Bergen County in northeastern New Jersey...
  Essex County in northeastern New Jersey...
  Richmond County in southeastern New York...

* Until 715 PM EDT.

* At 611 PM EDT, severe thunderstorms were located along a line
  extending from Succasunna-Kenvil to Lawrenceville, moving east at
  40 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to trees and power lines.

* Severe thunderstorms will be near...
  Fairfield around 640 PM EDT.
  Caldwell around 645 PM EDT.
  Bloomfield around 650 PM EDT.
  Paterson and Passaic around 655 PM EDT.
  Paramus and Teterboro around 700 PM EDT.
  Hackensack and Ridgefield around 705 PM EDT.
  Bergenfield and Fort Lee around 710 PM EDT.

This includes the following New York State COVID tent site 
Staten Island OMH.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4051 7424 4050 7428 4051 7426 4060 7422
      4060 7446 4066 7440 4065 7445 4067 7446
      4076 7436 4076 7438 4086 7432 4091 7433
      4089 7428 4092 7428 4097 7390 4076 7401
      4070 7402 4068 7406 4060 7403 4053 7410
TIME...MOT...LOC 2211Z 262DEG 33KT 4087 7467 4031 7471 

HAIL...<.75IN
WIND...60MPH
 
$$
2 follow-up statements
632 
WWUS51 KOKX 262241
SVSOKX

Severe Weather Statement
National Weather Service New York NY
641 PM EDT Wed May 26 2021

NJC003-013-017-031-039-NYC085-262315-
/O.CON.KOKX.SV.W.0009.000000T0000Z-210526T2315Z/
Hudson NJ-Passaic NJ-Union NJ-Bergen NJ-Essex NJ-Richmond NY-
641 PM EDT Wed May 26 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM EDT
FOR HUDSON...EASTERN PASSAIC...UNION...SOUTHEASTERN BERGEN...ESSEX
AND RICHMOND COUNTIES...

At 641 PM EDT, severe thunderstorms were located along a line
extending from Fairfield to near Tottenville, moving northeast at 55
mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to trees and power lines.

These severe storms will be near...
  Caldwell and Fairfield around 645 PM EDT.
  Paterson and Passaic around 650 PM EDT.
  Hackensack and Paramus around 655 PM EDT.
  Bergenfield around 700 PM EDT.

This includes the following New York State COVID tent site 
Staten Island OMH.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4051 7424 4050 7428 4051 7426 4060 7422
      4060 7446 4066 7440 4065 7445 4067 7446
      4076 7436 4076 7438 4086 7432 4091 7433
      4089 7428 4092 7428 4097 7390 4076 7401
      4070 7402 4068 7406 4060 7403 4053 7410
TIME...MOT...LOC 2241Z 244DEG 47KT 4091 7432 4049 7424 

HAIL...<.75IN
WIND...60MPH
 
$$
331 
WWUS51 KOKX 262258
SVSOKX

Severe Weather Statement
National Weather Service New York NY
658 PM EDT Wed May 26 2021

NJC003-013-017-031-039-NYC085-262308-
/O.CAN.KOKX.SV.W.0009.000000T0000Z-210526T2315Z/
Hudson NJ-Passaic NJ-Union NJ-Bergen NJ-Essex NJ-Richmond NY-
658 PM EDT Wed May 26 2021

...THE SEVERE THUNDERSTORM WARNING FOR HUDSON...EASTERN PASSAIC...
UNION...SOUTHEASTERN BERGEN...ESSEX AND RICHMOND COUNTIES IS
CANCELLED...
    
The storms which prompted the warning have weakened below severe
limits, and have exited the warned area. Therefore, the warning has 
been cancelled.  However gusty winds up to 50 mph are still possible 
with these thunderstorms.

LAT...LON 4051 7424 4050 7428 4051 7426 4060 7422
      4060 7446 4066 7440 4065 7445 4067 7446
      4076 7436 4076 7438 4086 7432 4091 7433
      4089 7428 4092 7428 4097 7390 4076 7401
      4070 7402 4068 7406 4060 7403 4053 7410
TIME...MOT...LOC 2256Z 262DEG 33KT 4093 7413 4051 7405 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 26, 4:44 PM EDTSpecial Weather StatementOKXOrange46 min
May 26, 6:15 PM EDTSpecial Marine WarningOKX90 min
May 26, 6:45 PM EDTSpecial Weather StatementOKXBronx, Kings, Nassau, New York, Putnam, Queens and 2 more60 min
May 26, 6:54 PM EDTSevere Thunderstorm WarningOKXOrange, Rockland, Westchester24 min
May 26, 6:56 PM EDTSpecial Marine WarningOKX94 min
May 26, 7:34 PM EDTSpecial Weather StatementOKXNassau41 min
May 26, 7:44 PM EDTSevere Thunderstorm WarningOKXNassau, Suffolk25 min

Nearby

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