Alert archive / New York / Tornado Warnings in 2020
Tornado Warning 3, NWS New York, NY
NWS New York, NY issued this tornado warning at Aug 4, 2020, 2:05 PM EDT for Suffolk County, New York; Lower Connecticut River Valley Planning Region, Connecticut. It was in force for 25 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
- Aug 4, 2020, 2:05 PM EDT (18:05 UTC)
- Expired
- Aug 4, 2020, 2:30 PM EDT
- In force
- 25 min
- Issued by
- NWS New York, NY
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.0 in
Counties Lower Connecticut River Valley Planning Region, CT, Suffolk County, NY
The radar
The Brookhaven radar (KOKX), 47 km from the middle of the area, began a volume at 18:05 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 4, 7:23 AM EDT | Tornado Watch | SPC | 9 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 6.1 hours before the alert went out and 47 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
- 1593 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 570 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 150 m²/s²
- 0-3 km storm-relative helicity
- 245 m²/s²
- Significant tornado parameter
- 1.5
- Supercell composite
- 7.4
The text
As transmitted.
191
WFUS51 KOKX 041805
TOROKX
CTC007-NYC103-041830-
/O.NEW.KOKX.TO.W.0003.200804T1805Z-200804T1830Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service New York NY
205 PM EDT Tue Aug 4 2020
The National Weather Service in Upton NY has issued a
* Tornado Warning for...
Southern Middlesex County in southern Connecticut...
Eastern Suffolk County in southeastern New York...
* Until 230 PM EDT.
* At 204 PM EDT, a severe thunderstorm capable of producing a tornado
was located 10 miles south of Southhampton, moving north at 65 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* Locations impacted include...
Southold, Clinton, Old Saybrook, Southhampton, Sag Harbor,
Bridgehampton, Westbrook, Shelter Island, Greenport, Shinnecock
Hills, Peconic, Noyack, North Haven, Fenwick and Orient.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4115 7220 4110 7229 4105 7222 4090 7225
4081 7253 4092 7253 4091 7250 4095 7247
4097 7249 4097 7253 4106 7253 4115 7236
4125 7236 4125 7252 4131 7252 4130 7234
4126 7232 4117 7235 4120 7219
TIME...MOT...LOC 1804Z 184DEG 58KT 4073 7242
TORNADO...RADAR INDICATED
HAIL...0.00IN
$$
JP1 follow-up statement
148
WWUS51 KOKX 041825
SVSOKX
Severe Weather Statement
National Weather Service New York NY
225 PM EDT Tue Aug 4 2020
CTC007-NYC103-041835-
/O.EXP.KOKX.TO.W.0003.000000T0000Z-200804T1830Z/
Middlesex CT-Suffolk NY-
225 PM EDT Tue Aug 4 2020
...THE TORNADO WARNING FOR SOUTHERN MIDDLESEX AND EASTERN SUFFOLK
COUNTIES WILL EXPIRE AT 230 PM EDT...
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning will be allowed to expire.
A Tornado Watch remains in effect until 400 PM EDT for southern
Connecticut...and southeastern New York.
LAT...LON 4115 7220 4110 7229 4105 7222 4090 7225
4081 7253 4092 7253 4091 7250 4095 7247
4097 7249 4097 7253 4106 7253 4115 7236
4125 7236 4125 7252 4131 7252 4130 7234
4126 7232 4117 7235 4120 7219
TIME...MOT...LOC 1825Z 184DEG 58KT 4105 7239
$$
JPThe office that day
Everything else NWS New York, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 3, 8:14 PM EDT | Special Weather Statement | OKX | Richmond | 61 min |
| Aug 3, 8:35 PM EDT | Special Marine Warning | OKX | 40 min | |
| Aug 3, 8:51 PM EDT | Special Weather Statement | OKX | Bronx, Kings, Nassau, New York, Queens | 39 min |
| Aug 3, 8:56 PM EDT | Severe Thunderstorm Warning | OKX | Kings, Nassau, Queens, Suffolk | 49 min |
| Aug 3, 9:05 PM EDT | Special Marine Warning | OKX | 25 min | |
| Aug 3, 9:05 PM EDT | Special Weather Statement | OKX | Bronx, Kings, New York | 40 min |
| Aug 3, 9:06 PM EDT | Special Weather Statement | OKX | Nassau | 39 min |
| Aug 3, 9:08 PM EDT | Special Marine Warning | OKX | 15 min | |
| Aug 3, 9:11 PM EDT | Special Marine Warning | OKX | 64 min | |
| Aug 3, 9:17 PM EDT | Special Weather Statement | OKX | Suffolk | 43 min |
| Aug 3, 9:29 PM EDT | Special Marine Warning | OKX | 91 min | |
| Aug 3, 9:31 PM EDT | Special Weather Statement | OKX | Rockland, Westchester | 44 min |
| Aug 3, 9:33 PM EDT | Special Weather Statement | OKX | Putnam, Rockland, Westchester | 57 min |
| Aug 3, 9:45 PM EDT | Severe Thunderstorm Warning | OKX | Putnam, Westchester | 60 min |
| Aug 3, 10:05 PM EDT | Special Marine Warning | OKX | 65 min | |
| Aug 3, 10:09 PM EDT | Special Weather Statement | OKX | Suffolk | 51 min |
| Aug 3, 10:40 PM EDT | Special Weather Statement | OKX | Putnam | 65 min |
| Aug 4, 3:22 AM EDT | Special Weather Statement | OKX | Rockland | 38 min |
| Aug 4, 11:16 AM EDT | Special Marine Warning | OKX | 59 min | |
| Aug 4, 11:21 AM EDT | Special Weather Statement | OKX | Kings, New York, Queens | 39 min |
| Aug 4, 11:51 AM EDT | Areal Flood Advisory | OKX | Bronx, Kings, New York, Orange, Queens, Richmond and 1 more | 3 hr |
| Aug 4, 12:19 PM EDT | Special Marine Warning | OKX | 56 min | |
| Aug 4, 12:38 PM EDT | Special Marine Warning | OKX | 67 min | |
| Aug 4, 1:03 PM EDT | Special Marine Warning | OKX | 57 min | |
| Aug 4, 1:04 PM EDT | Special Marine Warning | OKX | 56 min | |
| Aug 4, 1:20 PM EDT | Special Marine Warning | OKX | 55 min | |
| Aug 4, 1:35 PM EDT | Special Marine Warning | OKX | 55 min | |
| Aug 4, 1:42 PM EDT | Special Marine Warning | OKX | 37 min | |
| Aug 4, 1:57 PM EDT | Special Marine Warning | OKX | 63 min | |
| Aug 4, 1:59 PM EDT | Special Marine Warning | OKX | 61 min | |
| Aug 4, 2:15 PM EDT | Special Marine Warning | OKX | 45 min | |
| Aug 4, 2:24 PM EDT | Special Marine Warning | OKX | 34 min | |
| Aug 4, 3:01 PM EDT | Special Marine Warning | OKX | 28 min | |
| Aug 4, 1:38 PM EDT | Tornado Warning | OKX | Greater Bridgeport Planning Region | 37 min |
| Aug 4, 2:49 PM EDT | Tornado Warning | OKX | Lower Connecticut River Valley Planning Region | 15 min |
Nearby
Tornado Warnings in New York, 2020Tornado Warnings in Connecticut, 2020Every tornado warning in 2020Tornadoes in 2020
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.