Alert archive / New York / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 59, NWS New York, NY
NWS New York, NY issued this severe thunderstorm warning at Jul 25, 2021, 10:58 PM EDT for 5 counties in New York; Bergen County, New Jersey. It was in force for 38 min. 1 report 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
- Jul 25, 2021, 10:58 PM EDT (02:58 UTC)
- Expired
- Jul 25, 2021, 11:36 PM EDT
- In force
- 38 min
- Issued by
- NWS New York, NY
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Bergen County, NJ, Bronx County, NY, Nassau County, NY, Rockland County, NY, Suffolk County, NY, Westchester County, NY
The radar
The Brookhaven radar (KOKX), 69 km from the middle of the area, began a volume at 03:02 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 |
|---|---|---|---|
| Jul 25, 11:25 PM EDT | TSTM WND DMG | 1 N Ardsley, NY | TREE DOWN ON I-87 SOUTHBOUND BETWEEN EXIT 7A AND 7. TREE BLOCKING RIGHT LANE. TIME ESTIMATED FROM RADAR. |
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 00:00Z, 3.0 hours before the alert went out and 69 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
- 1198 J/kg
- Mixed-layer CIN
- -40 J/kg
- Mixed-layer LCL
- 685 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 85 m²/s²
- 0-3 km storm-relative helicity
- 111 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 3.5
The text
As transmitted.
299
WUUS51 KOKX 260258
SVROKX
NJC003-NYC005-059-087-103-119-260400-
/O.NEW.KOKX.SV.W.0059.210726T0258Z-210726T0400Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service New York NY
1058 PM EDT Sun Jul 25 2021
The National Weather Service in Upton NY has issued a
* Severe Thunderstorm Warning for...
Northeastern Bergen County in northeastern New Jersey...
Southern Westchester County in southeastern New York...
Bronx County in southeastern New York...
West central Suffolk County in southeastern New York...
Rockland County in southeastern New York...
Northern Nassau County in southeastern New York...
* Until midnight EDT.
* At 1058 PM EDT, a severe thunderstorm was located over Orangeburg,
or over Tappan, moving southeast at 30 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.
* This severe thunderstorm will be near...
Hawthorne around 1105 PM EDT.
Dobbs Ferry around 1110 PM EDT.
Yonkers and White Plains around 1115 PM EDT.
New Rochelle and Harrison around 1120 PM EDT.
Port Chester and Rye around 1125 PM EDT.
Throgs Neck Bridge and Sands Point around 1130 PM EDT.
Glen Cove and Great Neck around 1135 PM EDT.
Manhasset and Bayville around 1140 PM EDT.
Mineola and Oyster Bay around 1145 PM EDT.
Garden City and Syosset around 1150 PM EDT.
Huntington Station and Plainview around 1155 PM EDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4073 7371 4075 7370 4081 7381 4103 7409
4117 7393 4106 7369 4101 7364 4087 7374
4088 7371 4086 7366 4091 7364 4093 7352
4096 7349 4086 7328 4068 7366
TIME...MOT...LOC 0258Z 311DEG 28KT 4106 7394
HAIL...1.00IN
WIND...60MPH
$$
JP1 follow-up statement
400
WWUS51 KOKX 260336
SVSOKX
Severe Weather Statement
National Weather Service New York NY
1136 PM EDT Sun Jul 25 2021
NJC003-NYC005-059-087-103-119-260345-
/O.CAN.KOKX.SV.W.0059.000000T0000Z-210726T0400Z/
Bergen NJ-Westchester NY-Bronx NY-Suffolk NY-Rockland NY-Nassau NY-
1136 PM EDT Sun Jul 25 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN BERGEN...SOUTHERN
WESTCHESTER...BRONX...WEST CENTRAL SUFFOLK...ROCKLAND AND NORTHERN
NASSAU COUNTIES IS CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled. However small hail is
still possible with this thunderstorm.
LAT...LON 4073 7371 4075 7370 4081 7381 4103 7409
4117 7393 4106 7369 4101 7364 4087 7374
4088 7371 4086 7366 4091 7364 4093 7352
4096 7349 4086 7328 4068 7366
TIME...MOT...LOC 0333Z 311DEG 28KT 4087 7365
$$
JPThe office that day
Everything else NWS New York, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 25, 9:57 PM EDT | Special Weather Statement | OKX | Rockland | 48 min |
| Jul 25, 10:07 PM EDT | Special Weather Statement | OKX | Westchester | 38 min |
| Jul 25, 10:13 PM EDT | Areal Flood Advisory | OKX | Orange, Rockland, Westchester | 82 min |
| Jul 25, 11:38 PM EDT | Special Weather Statement | OKX | Bronx | 67 min |
| Jul 25, 11:43 PM EDT | Areal Flood Advisory | OKX | Bronx, Rockland, Westchester | 100 min |
| Jul 26, 1:08 AM EDT | Special Weather Statement | OKX | Nassau | 67 min |
| Jul 26, 1:13 AM EDT | Areal Flood Advisory | OKX | Nassau, Queens, Suffolk | 113 min |
| Jul 26, 2:15 AM EDT | Special Weather Statement | OKX | Bronx, Nassau, Queens | 60 min |
| Jul 26, 11:23 AM EDT | Rip Current Statement | OKX | Kings, Nassau, Queens, Suffolk | 10 hr |
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.