Alert archive / Connecticut / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 9, NWS New York, NY

June 6, 2026Lower Connecticut River Valley Planning Region, Naugatuck Valley Planning Region, Southeastern Connecticut Planning Region, Connecticut

NWS New York, NY issued this severe thunderstorm warning at Jun 6, 2026, 7:16 PM EDT for Lower Connecticut River Valley Planning Region, Naugatuck Valley Planning Region, Southeastern Connecticut Planning Region, Connecticut. It was in force for 44 min. 2 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
Jun 6, 2026, 7:16 PM EDT (23:16 UTC)
Expired
Jun 6, 2026, 8:00 PM EDT
In force
44 min
Issued by
NWS New York, NY
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Lower Connecticut River Valley Planning Region, CT, Naugatuck Valley Planning Region, CT, Southeastern Connecticut Planning Region, CT

The radar

The Brookhaven radar (KOKX), 85 km from the middle of the area, began a volume at 23:19 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

TimeReportWhereRemark
Jun 6, 7:40 PM EDTTSTM WND DMG1 Wnw Middletown, CTTree limb down on roadway on Washington Street in Middletown CT.
Jun 6, 7:40 PM EDTTSTM WND DMG2 W Cromwell, CTPower outages due to downed tree limbs. Time estimated by radar.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched 2 storm reports to this severe thunderstorm warning; the first came 24 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 6, 4:45 PM EDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 11.3 hours before the alert went out and 85 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.

Skew-T log-pSkew-T log-p diagram, Brookhaven, NY at 12:00Z on 2026-06-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2026-06-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 70 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1811 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
70 m²/s²
0-3 km storm-relative helicity
124 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

821 
WUUS51 KOKX 062316
SVROKX
CTC007-009-011-070000-
/O.NEW.KOKX.SV.W.0009.260606T2316Z-260607T0000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service New York NY
716 PM EDT Sat Jun 6 2026

The National Weather Service in Upton NY has issued a

* Severe Thunderstorm Warning for...
  Northwestern New London County in southern Connecticut...
  Northern Middlesex County in southern Connecticut...
  North central New Haven County in southern Connecticut...

* Until 800 PM EDT.

* At 716 PM EDT, severe thunderstorms were located along a line
  extending from near Avon to near Plainville to Cheshire, moving
  east at 40 mph.

  HAZARD...60 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to trees and power lines.

* Severe thunderstorms will be near...
  Meriden and Middletown around 720 PM EDT.
  Durham and Portland around 725 PM EDT.
  Lake Pocotopaug--East Hampton around 730 PM EDT.
  East Hampton and Haddam around 735 PM EDT.
  Colchester around 740 PM EDT.
  East Haddam around 745 PM EDT.
  Lebanon around 750 PM EDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4171 7224 4170 7222 4144 7240 4146 7303
      4160 7294 4156 7295 4156 7288 4154 7285
      4157 7284 4155 7282 4158 7275 4161 7272
      4163 7271 4165 7253 4164 7250 4158 7247
      4159 7239 4160 7233 4164 7233 4167 7227
TIME...MOT...LOC 2316Z 270DEG 34KT 4179 7281 4164 7284 4150 7293 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

JT
2 follow-up statements
011 
WWUS51 KOKX 062334
SVSOKX

Severe Weather Statement
National Weather Service New York NY
734 PM EDT Sat Jun 6 2026

CTC009-062344-
/O.CAN.KOKX.SV.W.0009.000000T0000Z-260607T0000Z/
New Haven CT-
734 PM EDT Sat Jun 6 2026

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL NEW HAVEN COUNTY
IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 1000 PM EDT for
southern Connecticut.

&&

LAT...LON 4171 7224 4170 7222 4149 7241 4153 7275
      4158 7275 4161 7272 4163 7271 4165 7252
      4164 7250 4158 7247 4160 7233 4164 7233
      4167 7227
TIME...MOT...LOC 2334Z 270DEG 34KT 4179 7260 4164 7263 4150 7272 

$$

CTC007-011-070000-
/O.CON.KOKX.SV.W.0009.000000T0000Z-260607T0000Z/
New London CT-Middlesex CT-
734 PM EDT Sat Jun 6 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM EDT
FOR NORTHWESTERN NEW LONDON AND NORTHERN MIDDLESEX COUNTIES...

At 734 PM EDT, severe thunderstorms were located along a line
extending from near East Hartford to near Rocky Hill to Middlefield,
moving east at 40 mph.

HAZARD...60 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

IMPACT...Expect damage to trees and power lines.

These severe storms will be near...
  Middletown and East Hampton around 740 PM EDT.
  Colchester and East Haddam around 745 PM EDT.
  Lebanon around 750 PM EDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4171 7224 4170 7222 4149 7241 4153 7275
      4158 7275 4161 7272 4163 7271 4165 7252
      4164 7250 4158 7247 4160 7233 4164 7233
      4167 7227
TIME...MOT...LOC 2334Z 270DEG 34KT 4179 7260 4164 7263 4150 7272 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

JT
903 
WWUS51 KOKX 062355
SVSOKX

Severe Weather Statement
National Weather Service New York NY
755 PM EDT Sat Jun 6 2026

CTC007-011-070005-
/O.EXP.KOKX.SV.W.0009.000000T0000Z-260607T0000Z/
New London CT-Middlesex CT-
755 PM EDT Sat Jun 6 2026

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN NEW LONDON AND
NORTHERN MIDDLESEX COUNTIES WILL EXPIRE AT 800 PM EDT...

The storms which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire.

A Severe Thunderstorm Watch remains in effect until 1000 PM EDT for
southern Connecticut.

&&

LAT...LON 4171 7224 4170 7222 4149 7241 4153 7275
      4158 7275 4161 7272 4163 7271 4165 7252
      4164 7250 4158 7247 4160 7233 4164 7233
      4167 7227
TIME...MOT...LOC 2355Z 270DEG 34KT 4179 7234 4164 7237 4150 7246 

$$

JT

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS New York, NY wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 6, 5:41 PM EDT, 1 hour 35 minutes earlier. Its key messages:

  • 1) Severe thunderstorms are possible into this evening. 2) High rip current risk at the ocean beaches today. 3) Heat and humidity build again mid to late week, with a return of unsettled weather.
Area forecast discussion, Jun 6, 5:41 PM EDT, 1 hour 35 minutes before
Area Forecast Discussion
National Weather Service New York NY
541 PM EDT Sat Jun 6 2026

.WHAT HAS CHANGED...
Severe Thunderstorm Watch 281 in effect for most of the area
until 10 PM.

&&

.KEY MESSAGES...
1) Severe thunderstorms are possible into this evening.

2) High rip current risk at the ocean beaches today.

3) Heat and humidity build again mid to late week, with a return
of unsettled weather.

&&

.DISCUSSION...

.KEY MESSAGE 1...

...Severe Thunderstorm Watch 281 in effect for most of the area
until 10 PM...

A passing shortwave trough will help drag a cold front through
late today into this evening. A fast-moving line of severe
thunderstorms with a pre-frontal trough over eastern PA as of
530 PM will move into NW NJ and Orange County from 6-7 PM, then
cross the greater NYC metro area and the rest of the lower
Hudson Valley from 7-9 PM, and exit east later this evening.
MLCAPE per SPC mesoanalysis is increasing to 1000 J/kg while
unidirectional effective 0-6 km bulk shear increases to 30-40
kt. DCAPE is also increasing close to 1000 J/kg. Given these
parameters, potential exists for strongest storms to produce
wind gusts in excess of 70 mph mainly from NYC west. Given due
E-W trajectory severe storms (or at least a gust front with
damaging winds) may make it farther into S CT and Long Island
than is usually the case for this time of year.

PW increases to over 1.5 inch per latest HRRR, so it is possible
that heaviest storms could produce 0.75 to 1.5 inch of rain in
45 minutes to an hour as has been the case in central PA.
That could lead to significant localized flooding where it
occurs. Most places will see lesser amounts of 0.25 to 0.5
inch, with minor urban and poor drainage flooding.

Convection should clear ern CT/Long Island before midnight, with
drier conditions overnight into Sunday morning.

Another shortwave trough passing through Sunday afternoon could
still produce isolated to scattered showers and possibly a
tstm, with the better chances across SE CT.

.KEY MESSAGE 2...
There is a high rip current risk today at the ocean beaches.
Increasing SW flow 15 to 20 kt and 3-to-4 ft swells at 8 sec
drive this threat. Additional detail in Marine section.

.KEY MESSAGE 3...
The pattern could become a bit more unsettled mid to late week
as high pressure shifts offshore, and a warm, moist flow
develops around the ridge. With this, expect increasing humidity
with hot afternoons, and heat indices approaching 100F in some
areas by Friday. Additionally, with multiple disturbances
rounding the base of the upper level ridge, there will be
several periods with chances of showers and thunderstorms.
Details will become clearer on how strong these thunderstorms
can get as we head into the week, but it is worth noting that
the CSU-MLP Day 6-8 outlooks show a marginal risk of severe
weather.

&&

.AVIATION /21Z SATURDAY THROUGH THURSDAY/...
A pre-frontal trough moves across the area this evening followed
by a cold front passage on Sunday.

Mainly VFR through the TAF period. Showers and thunderstorms
remain possible this evening. Arrival time appears to be
22z-00z for NYC terminals on N and W, 00z-02z, western Long
Island and southwest Connecticut terminals, and 02-04z for
eastern Long Island and southeast Connecticut. Strong, gusty
winds may accompany the showers/storms with a wind shift to the
W-NW and potential for brief gusts up to 50 kt. The
showers/storms should weaken as they move east of the NYC metro,
but gusty winds 35-45 kt possible.

Outside of showers/storms, SW winds 10-15 kt with gusts 20-25
kt this afternoon and early afternoon. Winds will veer to the
WSW-W tonight as wind speeds weaken to under 10 kt. W-NW flow
increases Sunday morning, becoming 10-15 kt with gusts 20-25 kt
late morning into the afternoon.

 ...NY Metro (KEWR/KLGA/KJFK/KTEB) TAF Uncertainty...

End times of frequent wind gusts may be off by 1-2 hours this
evening.

Amendments for timing of showers/thunderstorms this evening
likely. PROB30 could become TEMPO.

Gusts to 50 kt possible if any storms become severe.

.OUTLOOK FOR 18Z SUNDAY THROUGH THURSDAY...

Sunday Afternoon-Night: VFR. Isolated shower/storm possible
eastern CT in the afternoon and evening. WNW-NW wind gusts 20-25
kt in the afternoon/early evening.

Monday-Tuesday: VFR.

Wednesday-Thursday: Mainly VFR. Chance of afternoon/evening
showers and isolated thunderstorms. SW wind gusts 20 kt possible
Wednesday.

Detailed information, including hourly TAF wind component
forecasts, can be found at: https:/www.weather.gov/zny/n90

&&

.MARINE...
SCA issued for the Long Island south shore bays as SW winds
increase late this afternoon and gust up to 25 kt til close to
sunset. SCA also continues on the ocean waters into tonight,
with gusts up to 25 kt and seas build to 5 ft, peaking this
evening. That said, the bigger threat will be tstms this
evening, which could produce wind gusts over 35 kt.

Flow becomes W-NW on Sunday behind a departing cold front. Winds
and seas should both remain below SCA levels, with ocean seas
3-4 ft.

Rip Currents: There is a high rip current risk through this
evening for the ocean beaches. Increasing SW flow 15-20 kt and
3-4 ft swells at 8 sec drive this threat.

The threat lowers to moderate on Sunday given little wind
component and a 4-ft 7-sec S swell.

By Monday, the rip current risk will be low with the lingering S
swell falling to 2 ft at 6s.

&&

.OKX WATCHES/WARNINGS/ADVISORIES...
CT...Air Quality Alert until 11 PM EDT this evening for CTZ005>012.
NY...Air Quality Alert until 11 PM EDT this evening for NYZ069>075-
     078>081-176>179.
     High Risk for Rip Currents until 9 PM EDT this evening for NYZ075-
     080-081-178-179.
NJ...Air Quality Alert until 11 PM EDT this evening for NJZ004-006-
     103>108.
MARINE...Small Craft Advisory until 8 PM EDT this evening for ANZ345.
     Small Craft Advisory until 6 AM EDT Sunday for ANZ350-353-355.

&&

DISCUSSION...BG/JT
AVIATION...DS
MARINE...BG
Hazardous weather outlook, Jun 6, 5:08 PM EDT, 2 hours 8 minutes before
Hazardous Weather Outlook
National Weather Service New York NY
508 PM EDT Sat Jun 6 2026

ANZ331-335-338-340-345-353-355-CTZ005-006-009-010-NJZ002-004-006-
103>108-NYZ067>074-078-079-176-177-072115-
Long Island Sound East of New Haven CT/Port Jefferson NY to the
Mouth of the Connecticut River-
Long Island Sound West of New Haven CT/Port Jefferson NY-
New York Harbor-Peconic and Gardiners Bays-
South Shore Bays from Jones Inlet through Shinnecock Bay-
Fire Island Inlet NY to Moriches Inlet NY out 20 NM-
Sandy Hook NJ to Fire Island Inlet NY out 20 NM-Northern Fairfield-
Northern New Haven-Southern Fairfield-Southern New Haven-
Western Passaic-Eastern Passaic-Hudson-Western Bergen-Eastern Bergen-
Western Essex-Eastern Essex-Western Union-Eastern Union-Orange-
Putnam-Rockland-Northern Westchester-Southern Westchester-
New York (Manhattan)-Bronx-Richmond (Staten Island)-
Northwest Suffolk-Northeast Suffolk-Northern Queens-Northern Nassau-
508 PM EDT Sat Jun 6 2026

...SEVERE THUNDERSTORM WATCH 281 IN EFFECT UNTIL 10 PM EDT THIS
EVENING...

This Hazardous Weather Outlook is for Atlantic coastal waters,
southern Connecticut, northeast New Jersey and southeast New York.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Severe Thunderstorm Watch.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Hazardous weather is not expected at this time that would meet NWS
warning criteria.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.

&&

This Hazardous Weather Outlook provides a summary of potential
widespread hazardous weather events that may reach NWS warning
criteria. Most long fused NWS watches, warnings, and advisories in
effect are highlighted.

Please refer to the latest NWS forecasts for weather not meeting NWS
warning criteria.

ANZ332-350-380-383-385-CTZ007-008-011-012-072115-
Long Island Sound East of the Mouth of the Connecticut River-
Moriches Inlet NY to Montauk Point NY out 20 NM-
Waters from Moriches Inlet NY to Montauk Point NY from 20 to 60 nm-
Waters from Fire Island Inlet NY to Moriches Inlet NY from 20 to
60 nm-
Waters from Sandy Hook NJ to Fire Island Inlet NY from 20 to 60 nm-
Northern Middlesex-Northern New London-Southern Middlesex-
Southern New London-
508 PM EDT Sat Jun 6 2026

This Hazardous Weather Outlook is for Atlantic coastal waters and
southern Connecticut.

.DAY ONE...Tonight.

There is a marginal risk of damaging wind gusts as thunderstorms
weaken and move east into the area this evening.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Hazardous weather is not expected at this time that would meet NWS
warning criteria.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely be needed.

&&

This Hazardous Weather Outlook provides a summary of potential
widespread hazardous weather events that may reach NWS warning
criteria. Most long fused NWS watches, warnings, and advisories in
effect are highlighted.

Please refer to the latest NWS forecasts for weather not meeting NWS
warning criteria.

NYZ075-080-081-178-179-072115-
Kings (Brooklyn)-Southwest Suffolk-Southeast Suffolk-Southern Queens-
Southern Nassau-
508 PM EDT Sat Jun 6 2026

...SEVERE THUNDERSTORM WATCH 281 IN EFFECT UNTIL 10 PM EDT THIS
EVENING...
...HIGH RIP CURRENT RISK IN EFFECT UNTIL 9 PM EDT THIS EVENING...

This Hazardous Weather Outlook is for southeast New York.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Severe Thunderstorm Watch.
   High Rip Current Risk.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Hazardous weather is not expected at this time that would meet NWS
warning criteria.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.

&&

This Hazardous Weather Outlook provides a summary of potential
widespread hazardous weather events that may reach NWS warning
criteria. Most long fused NWS watches, warnings, and advisories in
effect are highlighted.

Please refer to the latest NWS forecasts for weather not meeting NWS
warning criteria.

In the hours before

Special weather statement, Jun 6, 7:13 PM EDT, 3 minutes before
Special Weather Statement
National Weather Service New York NY
713 PM EDT Sat Jun 6 2026

NYZ067>070-070000-
Putnam NY-Rockland NY-Northern Westchester NY-Orange NY-
713 PM EDT Sat Jun 6 2026

...STRONG THUNDERSTORMS WILL IMPACT NORTHERN WESTCHESTER...ORANGE...
PUTNAM AND ROCKLAND COUNTIES THROUGH 800 PM EDT...

At 712 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Walden to near Sloatsburg to Millington.
Movement was east at 35 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
New City, Newburgh, Middletown, Ossining, Peekskill, Haverstraw,
Mahopac, Monroe, Walden, West Point, Warwick, Goshen, Sloatsburg,
Cold Spring, and Howells.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Severe Thunderstorm Watch remains in effect until 1000 PM EDT for
southeastern New York.

&&

LAT...LON 4163 7425 4160 7425 4158 7413 4161 7413
      4160 7409 4161 7407 4158 7405 4159 7395
      4153 7400 4146 7400 4144 7398 4149 7393
      4151 7369 4123 7371 4111 7385 4117 7429
      4133 7464 4150 7458 4150 7448 4157 7442
TIME...MOT...LOC 2312Z 256DEG 31KT 4160 7429 4114 7423 4069 7452

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

JT

The office that day

Everything else NWS New York, NY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 6, 6:01 PM EDTSevere Thunderstorm WarningOKXGreater Bridgeport Planning Region59 min
Jun 6, 7:27 PM EDTSevere Thunderstorm WarningOKXGreater Bridgeport Planning Region63 min
Jun 6, 7:53 PM EDTSevere Thunderstorm WarningOKXGreater Bridgeport Planning Region, Naugatuck Valley Planning Region52 min

Nearby

Severe Thunderstorm Warnings in Connecticut, 2026Every severe thunderstorm warning in 2026

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.