Alert archive / New Jersey / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 65, NWS New York, NY
NWS New York, NY issued this severe thunderstorm warning at Aug 11, 2021, 7:46 PM EDT for 4 counties in New Jersey. It was in force for 44 min. 2 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
- Aug 11, 2021, 7:46 PM EDT (23:46 UTC)
- Expired
- Aug 11, 2021, 8:30 PM EDT
- In force
- 44 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
The radar
The Philadelphia radar (KDIX), 94 km from the middle of the area, began a volume at 23:49 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 |
|---|---|---|---|
| Aug 11, 8:02 PM EDT | TSTM WND DMG | 1 Ne West Paterson, NJ | CORRECTS PREVIOUS NON-TSTM WND DMG REPORT FROM 1 NE WEST PATERSON. SHERIFF REPORTS DAMAGE TO COUNTY FAIR TENTS IN GARRETT MOUNTAIN. |
| Aug 11, 8:02 PM EDT | NON-TSTM WND DMG | 1 Ne West Paterson, NJ | SHERIFF REPORTS DAMAGE TO COUNTY FAIR TENTS IN GARRETT MOUNTAIN. |
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, 11.8 hours before the alert went out and 121 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.
- Mixed-layer CAPE
- 977 J/kg
- Mixed-layer CIN
- -44 J/kg
- Mixed-layer LCL
- 711 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- 18 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
692
WUUS51 KOKX 112346
SVROKX
NJC003-013-017-031-120030-
/O.NEW.KOKX.SV.W.0065.210811T2346Z-210812T0030Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service New York NY
746 PM EDT Wed Aug 11 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...
South central Bergen County in northeastern New Jersey...
Essex County in northeastern New Jersey...
* Until 830 PM EDT.
* At 745 PM EDT, a severe thunderstorm was located over Florham Park,
or near Morristown, moving east at 30 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to trees and power lines.
* This severe thunderstorm will be near...
Millburn and Fairfield around 755 PM EDT.
Caldwell around 800 PM EDT.
Orange around 805 PM EDT.
Newark and Bloomfield around 810 PM EDT.
Passaic and Lyndhurst around 815 PM EDT.
Secaucus and Teterboro around 820 PM EDT.
Hoboken and Hackensack around 825 PM EDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4072 7428 4071 7430 4072 7433 4074 7436
4076 7436 4076 7438 4077 7437 4079 7437
4082 7433 4085 7433 4086 7432 4087 7434
4089 7434 4092 7404 4073 7402 4071 7425
TIME...MOT...LOC 2345Z 266DEG 28KT 4079 7442
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
FEB1 follow-up statement
010
WWUS51 KOKX 120027
SVSOKX
Severe Weather Statement
National Weather Service New York NY
827 PM EDT Wed Aug 11 2021
NJC003-013-017-031-120036-
/O.EXP.KOKX.SV.W.0065.000000T0000Z-210812T0030Z/
Hudson NJ-Passaic NJ-Bergen NJ-Essex NJ-
827 PM EDT Wed Aug 11 2021
...THE SEVERE THUNDERSTORM WARNING FOR HUDSON...EASTERN PASSAIC...
SOUTH CENTRAL BERGEN AND ESSEX COUNTIES WILL EXPIRE AT 830 PM EDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However gusty
winds are still possible with this thunderstorm.
LAT...LON 4072 7428 4071 7430 4072 7433 4074 7436
4076 7436 4076 7438 4077 7437 4079 7437
4082 7433 4085 7433 4086 7432 4087 7434
4089 7434 4092 7404 4073 7402 4071 7425
TIME...MOT...LOC 0026Z 266DEG 28KT 4081 7402
$$
FEBThe office that day
Everything else NWS New York, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 11, 4:45 PM EDT | Excessive Heat Watch | OKX | Bergen, Essex, Hudson, Passaic, Union | 23 hr |
| Aug 11, 7:21 PM EDT | Special Weather Statement | OKX | Bergen, Essex, Passaic | 39 min |
| Aug 11, 7:28 PM EDT | Areal Flood Advisory | OKX | Bergen, Essex, Hudson, Passaic | 2 hr |
| Aug 11, 7:58 PM EDT | Special Weather Statement | OKX | Bergen | 32 min |
Nearby
Severe 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.