Alert archive / New York / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 33, NWS New York, NY
NWS New York, NY issued this severe thunderstorm warning at Jul 2, 2021, 5:34 PM EDT for Orange County, Rockland County, New York. It was in force for 56 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
- Jul 2, 2021, 5:34 PM EDT (21:34 UTC)
- Expired
- Jul 2, 2021, 6:30 PM EDT
- In force
- 56 min
- Issued by
- NWS New York, NY
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Orange County, NY, Rockland County, NY
The radar
The Brookhaven radar (KOKX), 114 km from the middle of the area, began a volume at 21:34 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 2, 5:34 PM EDT | TSTM WND DMG | Chester, NY | TREES REPORTED DOWN AROUND TOWN. |
| Jul 2, 5:42 PM EDT | HAIL 1.25 | Monroe, NY | HALF DOLLAR SIZE HAIL REPORTED. |
| Jul 2, 5:45 PM EDT | TSTM WND DMG | Monroe, NY | NUMEROUS TREES REPORTED DOWN. |
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, 9.6 hours before the alert went out and 113 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
- 51 J/kg
- Mixed-layer CIN
- -35 J/kg
- Mixed-layer LCL
- 836 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 11 m²/s²
- 0-3 km storm-relative helicity
- 28 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
The text
As transmitted.
228
WUUS51 KOKX 022134
SVROKX
NYC071-087-022230-
/O.NEW.KOKX.SV.W.0033.210702T2134Z-210702T2230Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service New York NY
534 PM EDT Fri Jul 2 2021
The National Weather Service in Upton NY has issued a
* Severe Thunderstorm Warning for...
Southeastern Orange County in southeastern New York...
Rockland County in southeastern New York...
* Until 630 PM EDT.
* At 533 PM EDT, a severe thunderstorm was located near Warwick,
moving east at 20 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to trees and power lines.
* This severe thunderstorm will be near...
Chester around 540 PM EDT.
Monroe around 555 PM EDT.
Harriman around 605 PM EDT.
Pomona around 615 PM EDT.
West Point around 625 PM EDT.
This includes the following New York State COVID tent site
Anthony Wayne Rec Center.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4143 7398 4133 7397 4132 7398 4131 7397
4124 7397 4118 7396 4118 7432 4120 7436
4139 7440
TIME...MOT...LOC 2133Z 267DEG 16KT 4129 7431
HAIL...0.75IN
WIND...60MPH
$$
DS3 follow-up statements
948
WWUS51 KOKX 022136
SVSOKX
Severe Weather Statement
National Weather Service New York NY
536 PM EDT Fri Jul 2 2021
NYC071-087-022230-
/O.CON.KOKX.SV.W.0033.000000T0000Z-210702T2230Z/
Orange NY-Rockland NY-
536 PM EDT Fri Jul 2 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT
FOR SOUTHEASTERN ORANGE AND ROCKLAND COUNTIES...
At 536 PM EDT, a severe thunderstorm was located near Warwick, moving
east at 20 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor hail damage to vehicles is possible. Expect wind
damage to trees and power lines.
This severe storm will be near...
Monroe around 555 PM EDT.
Harriman around 600 PM EDT.
Pomona around 615 PM EDT.
West Point around 620 PM EDT.
This includes the following New York State COVID tent site
Anthony Wayne Rec Center.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4143 7398 4133 7397 4132 7398 4131 7397
4124 7397 4118 7396 4118 7432 4120 7436
4139 7440
TIME...MOT...LOC 2136Z 267DEG 16KT 4129 7429
HAIL...1.00IN
WIND...60MPH
$$
DS009
WWUS51 KOKX 022158
SVSOKX
Severe Weather Statement
National Weather Service New York NY
558 PM EDT Fri Jul 2 2021
NYC071-087-022230-
/O.CON.KOKX.SV.W.0033.000000T0000Z-210702T2230Z/
Orange NY-Rockland NY-
558 PM EDT Fri Jul 2 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT
FOR SOUTHEASTERN ORANGE AND ROCKLAND COUNTIES...
At 558 PM EDT, a severe thunderstorm was located over Harriman, or
over Monroe, moving east at 20 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 storm will be near...
Pomona around 615 PM EDT.
West Point around 620 PM EDT.
This includes the following New York State COVID tent site
Anthony Wayne Rec Center.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4143 7398 4133 7397 4132 7398 4131 7397
4118 7397 4118 7429 4140 7428
TIME...MOT...LOC 2158Z 267DEG 16KT 4130 7416
HAIL...1.00IN
WIND...60MPH
$$
DS148
WWUS51 KOKX 022220
SVSOKX
Severe Weather Statement
National Weather Service New York NY
620 PM EDT Fri Jul 2 2021
NYC071-087-022230-
/O.EXP.KOKX.SV.W.0033.000000T0000Z-210702T2230Z/
Orange NY-Rockland NY-
620 PM EDT Fri Jul 2 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN ORANGE AND
ROCKLAND COUNTIES WILL EXPIRE AT 630 PM EDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.
LAT...LON 4143 7398 4133 7397 4132 7398 4131 7397
4118 7397 4118 7429 4140 7428
TIME...MOT...LOC 2220Z 267DEG 16KT 4130 7404
$$
DSThe office that day
Everything else NWS New York, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 1, 8:16 PM EDT | Special Marine Warning | OKX | 30 min | |
| Jul 1, 11:43 PM EDT | Areal Flood Advisory | OKX | Westchester | 78 min |
| Jul 2, 4:14 AM EDT | Small Craft Advisory | OKX | 50 hr | |
| Jul 2, 5:00 AM EDT | Rip Current Statement | OKX | Kings, Nassau, Queens, Suffolk | 64 hr |
| Jul 2, 1:52 PM EDT | Areal Flood Advisory | OKX | Bronx, New York | 47 min |
| Jul 2, 3:18 PM EDT | Areal Flood Advisory | OKX | Nassau, Queens | 87 min |
| Jul 2, 3:30 PM EDT | Flash Flood Warning | OKX | Queens | 90 min |
| Jul 2, 3:52 PM EDT | Special Weather Statement | OKX | Orange | 53 min |
| Jul 2, 4:32 PM EDT | Areal Flood Advisory | OKX | Suffolk | 88 min |
| Jul 2, 4:44 PM EDT | Special Weather Statement | OKX | Orange | 61 min |
| Jul 2, 4:57 PM EDT | Areal Flood Advisory | OKX | Kings, Queens | 63 min |
| Jul 2, 5:56 PM EDT | Areal Flood Advisory | OKX | Nassau, Suffolk | 43 min |
| Jul 2, 6:16 PM EDT | Areal Flood Advisory | OKX | Orange, Putnam, Rockland, Westchester | 119 min |
| Jul 2, 6:28 PM EDT | Special Weather Statement | OKX | Rockland, Westchester | 47 min |
| Jul 2, 7:15 PM EDT | Special Weather Statement | OKX | Putnam | 45 min |
Nearby
Severe 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.