Alert archive / New Jersey / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 8, NWS New York, NY
NWS New York, NY issued this severe thunderstorm warning at Apr 28, 2021, 8:45 PM EDT for Bergen County, Passaic County, New Jersey; Orange County, Rockland County, New York. It was in force for 30 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Apr 28, 2021, 8:45 PM EDT (00:45 UTC)
- Expired
- Apr 28, 2021, 9:15 PM EDT
- In force
- 30 min
- Issued by
- NWS New York, NY
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Bergen County, NJ, Passaic County, NJ, Orange County, NY, Rockland County, NY
The radar
The Brookhaven radar (KOKX), 120 km from the middle of the area, began a volume at 00:49 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.
The nearest sounding before it
Brookhaven, NY (KOKX), launched 00:00Z, 0.8 hours before the alert went out and 120 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1815 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 311 m²/s²
- 0-3 km storm-relative helicity
- 286 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
288
WUUS51 KOKX 290045
SVROKX
NJC003-031-NYC071-087-290115-
/O.NEW.KOKX.SV.W.0008.210429T0045Z-210429T0115Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service New York NY
845 PM EDT Wed Apr 28 2021
The National Weather Service in Upton NY has issued a
* Severe Thunderstorm Warning for...
Passaic County in northeastern New Jersey...
Bergen County in northeastern New Jersey...
South central Orange County in southeastern New York...
Rockland County in southeastern New York...
* Until 915 PM EDT.
* At 844 PM EDT, a severe thunderstorm was located over Highland
Lake, or near West Milford, moving east at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to trees and power lines.
* This severe thunderstorm will be near...
Ringwood and Pompton Lakes around 855 PM EDT.
Sloatsburg around 900 PM EDT.
Ramsey and Suffern around 905 PM EDT.
New City and Paramus around 910 PM EDT.
Bergenfield and Nyack around 915 PM EDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Wind damage with this storm will occur before any rain or lightning.
Do not wait for the sound of thunder before taking cover. SEEK
SHELTER IMMEDIATELY inside a sturdy structure and stay away from
windows.
&&
LAT...LON 4120 7437 4122 7440 4118 7391 4114 7389
4103 7389 4094 7391 4087 7394 4098 7430
4100 7430 4101 7439 4103 7442 4102 7443
4104 7443 4105 7445 4104 7450 4107 7449
4109 7450
TIME...MOT...LOC 0044Z 284DEG 44KT 4113 7445
HAIL...<.75IN
WIND...60MPH
$$
JEThe office that day
Everything else NWS New York, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 28, 8:39 PM EDT | Special Weather Statement | OKX | Bergen, Passaic | 51 min |
| Apr 28, 9:13 PM EDT | Special Weather Statement | OKX | Bergen | 32 min |
| Apr 29, 3:47 AM EDT | Coastal Flood Statement | OKX | Essex, Hudson, Union | 23 hr |
| Apr 29, 3:30 PM EDT | Wind Advisory | OKX | Bergen, Essex, Hudson, Passaic, Union | 36 hr |
| Apr 28, 8:23 PM EDT | Special Weather Statement | OKX | Rockland, Westchester | 52 min |
| Apr 28, 8:59 PM EDT | Special Weather Statement | OKX | Suffolk | 31 min |
| Apr 28, 9:17 PM EDT | Special Weather Statement | OKX | Suffolk | 43 min |
| Apr 28, 9:26 PM EDT | Special Marine Warning | OKX | 64 min | |
| Apr 29, 3:47 AM EDT | Coastal Flood Advisory | OKX | Nassau, Queens, Westchester | 23 hr |
| Apr 29, 4:26 AM EDT | Gale Watch | OKX | 11 hr | |
| Apr 29, 4:26 AM EDT | Small Craft Advisory | OKX | 26 hr | |
| Apr 29, 3:33 PM EDT | Gale Warning | OKX | 38 hr |
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.