Alert archive / Connecticut / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 81, NWS New York, NY
NWS New York, NY issued this severe thunderstorm warning at Oct 16, 2021, 5:54 PM EDT for Greater Bridgeport Planning Region, Naugatuck Valley Planning Region, Connecticut; Putnam County, Westchester County, New York. It was in force for 38 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
- Oct 16, 2021, 5:54 PM EDT (21:54 UTC)
- Expired
- Oct 16, 2021, 6:32 PM EDT
- In force
- 38 min
- Issued by
- NWS New York, NY
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Greater Bridgeport Planning Region, CT, Naugatuck Valley Planning Region, CT, Putnam County, NY, Westchester County, NY
The radar
The Brookhaven radar (KOKX), 84 km from the middle of the area, began a volume at 21:56 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 12:00Z, 9.9 hours before the alert went out and 84 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
- 1068 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 140 m²/s²
- 0-3 km storm-relative helicity
- 174 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
161
WUUS51 KOKX 162154
SVROKX
CTC001-009-NYC079-119-162245-
/O.NEW.KOKX.SV.W.0081.211016T2154Z-211016T2245Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service New York NY
554 PM EDT Sat Oct 16 2021
The National Weather Service in Upton NY has issued a
* Severe Thunderstorm Warning for...
Fairfield County in southern Connecticut...
Western New Haven County in southern Connecticut...
Northern Westchester County in southeastern New York...
Eastern Putnam County in southeastern New York...
* Until 645 PM EDT.
* At 553 PM EDT, severe thunderstorms were located along a line
extending from near Lake Carmel to Harrison, moving northeast at 40
mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to trees and power lines.
* Severe thunderstorms will be near...
Lake Carmel around 600 PM EDT.
New Fairfield and Bedford around 605 PM EDT.
Stamford and Darien around 610 PM EDT.
Sherman around 615 PM EDT.
Norwalk and New Canaan around 620 PM EDT.
Wilton and Georgetown around 625 PM EDT.
Westport and Weston around 630 PM EDT.
Fairfield around 635 PM EDT.
Trumbull and Monroe around 645 PM EDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4166 7349 4165 7349 4164 7350 4153 7345
4149 7344 4151 7339 4149 7337 4147 7331
4149 7333 4151 7332 4151 7318 4126 7320
4102 7368 4108 7376 4111 7378 4151 7375
4153 7360 4153 7353 4167 7352
TIME...MOT...LOC 2153Z 239DEG 34KT 4153 7370 4105 7372
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
122 follow-up statements
051
WWUS51 KOKX 162221
SVSOKX
Severe Weather Statement
National Weather Service New York NY
621 PM EDT Sat Oct 16 2021
NYC079-162231-
/O.CAN.KOKX.SV.W.0081.000000T0000Z-211016T2245Z/
Putnam NY-
621 PM EDT Sat Oct 16 2021
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN PUTNAM COUNTY IS
CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
LAT...LON 4166 7349 4165 7349 4164 7350 4149 7344
4151 7339 4149 7337 4147 7331 4149 7333
4151 7332 4151 7318 4131 7321 4118 7356
4135 7357 4137 7356 4137 7355 4138 7354
4167 7352
TIME...MOT...LOC 2221Z 240DEG 32KT 4157 7341 4125 7347
$$
CTC001-009-NYC119-162245-
/O.CON.KOKX.SV.W.0081.000000T0000Z-211016T2245Z/
Fairfield CT-New Haven CT-Westchester NY-
621 PM EDT Sat Oct 16 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM EDT
FOR CENTRAL FAIRFIELD...WESTERN NEW HAVEN AND NORTHERN WESTCHESTER
COUNTIES...
At 621 PM EDT, severe thunderstorms were located along a line
extending from New Milford to near Georgetown, moving northeast at 35
mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to trees and power lines.
These severe storms will be near...
Brookfield around 625 PM EDT.
Trumbull around 645 PM EDT.
Monroe around 650 PM EDT.
Southbury around 700 PM EDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4166 7349 4165 7349 4164 7350 4149 7344
4151 7339 4149 7337 4147 7331 4149 7333
4151 7332 4151 7318 4131 7321 4118 7356
4135 7357 4137 7356 4137 7355 4138 7354
4167 7352
TIME...MOT...LOC 2221Z 240DEG 32KT 4157 7341 4125 7347
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
12079
WWUS51 KOKX 162232
SVSOKX
Severe Weather Statement
National Weather Service New York NY
632 PM EDT Sat Oct 16 2021
CTC001-009-NYC119-162242-
/O.CAN.KOKX.SV.W.0081.000000T0000Z-211016T2245Z/
Fairfield CT-New Haven CT-Westchester NY-
632 PM EDT Sat Oct 16 2021
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL FAIRFIELD...WESTERN
NEW HAVEN AND NORTHERN WESTCHESTER COUNTIES IS CANCELLED...
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning has been cancelled. However gusty winds are
still possible with these thunderstorms.
LAT...LON 4166 7349 4165 7349 4164 7350 4149 7344
4151 7339 4149 7337 4147 7331 4149 7333
4151 7332 4151 7318 4131 7321 4118 7356
4135 7357 4137 7356 4137 7355 4138 7354
4167 7352
TIME...MOT...LOC 2231Z 239DEG 34KT 4162 7329 4130 7335
$$
12The office that day
Everything else NWS New York, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 16, 3:03 PM EDT | Special Weather Statement | OKX | Orange | 42 min |
| Oct 16, 4:07 PM EDT | Special Weather Statement | OKX | Orange | 38 min |
| Oct 16, 4:23 PM EDT | Special Weather Statement | OKX | Richmond, Rockland | 52 min |
| Oct 16, 4:53 PM EDT | Severe Thunderstorm Warning | OKX | Orange, Putnam, Rockland, Westchester | 67 min |
| Oct 16, 5:05 PM EDT | Special Marine Warning | OKX | 85 min | |
| Oct 16, 5:06 PM EDT | Special Marine Warning | OKX | 87 min | |
| Oct 16, 5:20 PM EDT | Severe Thunderstorm Warning | OKX | Bronx, Kings, Nassau, New York, Queens, Richmond and 1 more | 40 min |
| Oct 16, 5:31 PM EDT | Special Weather Statement | OKX | Nassau, Queens | 44 min |
Nearby
Severe Thunderstorm Warnings in Connecticut, 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.