Alert archive / Connecticut / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 20, NWS Albany, NY

June 8, 2021Northwest Hills Planning Region, Connecticut

NWS Albany, NY issued this severe thunderstorm warning at Jun 8, 2021, 2:59 PM EDT for Northwest Hills Planning Region, Connecticut. It was in force for 20 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
Jun 8, 2021, 2:59 PM EDT (18:59 UTC)
Expired
Jun 8, 2021, 3:19 PM EDT
In force
20 min
Issued by
NWS Albany, NY
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

County Northwest Hills Planning Region, CT

The radar

The Albany radar (KENX), 111 km from the middle of the area, began a volume at 18:58 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 8, 3:10 PM EDTTSTM WND DMG3 Wnw Winsted, CTTREES DOWN.
Jun 8, 3:11 PM EDTTSTM WND DMG2 Nnw Winsted, CTTREE DOWN.
Jun 8, 3:11 PM EDTNON-TSTM WND DMG2 Nnw Winsted, CTTREE DOWN.

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

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 7.0 hours before the alert went out and 105 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, Albany, NY at 12:00Z on 2021-06-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 289 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Albany, NY at 12:00Z on 2021-06-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 7 square meters per square second.1939Sfc1 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
289 J/kg
Mixed-layer CIN
-113 J/kg
Mixed-layer LCL
1170 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
7 m²/s²
0-3 km storm-relative helicity
40 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

As transmitted.

000 
WUUS51 KALY 081859
SVRALY
CTC005-081930-
/O.NEW.KALY.SV.W.0020.210608T1859Z-210608T1930Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Albany NY
259 PM EDT Tue Jun 8 2021

The National Weather Service in Albany has issued a

* Severe Thunderstorm Warning for...
  Northeastern Litchfield County in northern Connecticut...

* Until 330 PM EDT.

* At 259 PM EDT, a severe thunderstorm was located over Winsted, or 8
  miles north of Torrington, moving northeast at 5 mph.

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

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Winsted, Barkhamsted, Colebrook, Pleasant Valley, Mooreville,
  Riverton, Mill Brook, Beech Rock, Grantville, Robertsville,
  Barkhampsted Center, Nelsons Corner, Goose Green and North
  Colebrook.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

Please report hail size...damaging winds and reports of trees down to
the National Weather Service by email at Alb.Stormreport@noaa.gov...
On Facebook at www.facebook.com/nwsalbany or twitter @nwsalbany

LAT...LON 4194 7290 4189 7297 4192 7315 4197 7321
      4204 7307 4204 7301 4197 7303 4197 7289
TIME...MOT...LOC 1859Z 235DEG 6KT 4196 7308 

HAIL...0.75IN
WIND...60MPH
 
$$

KSL
2 follow-up statements
608 
WWUS51 KALY 081906
SVSALY

Severe Weather Statement
National Weather Service Albany NY
306 PM EDT Tue Jun 8 2021

CTC005-081930-
/O.CON.KALY.SV.W.0020.000000T0000Z-210608T1930Z/
Litchfield CT-
306 PM EDT Tue Jun 8 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM EDT
FOR NORTHEASTERN LITCHFIELD COUNTY...

At 306 PM EDT, a severe thunderstorm was located over Winsted, or 9
miles north of Torrington, moving northeast at 5 mph.

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

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Winsted, Colebrook, Robertsville, North Colebrook, Riverton, Nelsons
Corner and Mill Brook.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4197 7292 4191 7310 4191 7311 4199 7318
      4204 7307 4204 7301 4197 7303
TIME...MOT...LOC 1906Z 235DEG 6KT 4197 7306 

HAIL...0.75IN
WIND...60MPH
 
$$

KSL
062 
WWUS51 KALY 081919
SVSALY

Severe Weather Statement
National Weather Service Albany NY
319 PM EDT Tue Jun 8 2021

CTC005-081929-
/O.CAN.KALY.SV.W.0020.000000T0000Z-210608T1930Z/
Litchfield CT-
319 PM EDT Tue Jun 8 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN LITCHFIELD COUNTY
IS CANCELLED...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.

LAT...LON 4197 7292 4191 7310 4191 7311 4199 7318
      4204 7307 4204 7301 4197 7303
TIME...MOT...LOC 1918Z 235DEG 6KT 4198 7304 

$$

KSL

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 8, 1:10 PM EDTFlash Flood WatchALYNorthwest Hills Planning Region7 hr
Jun 8, 2:21 PM EDTSpecial Weather StatementALY39 min
Jun 8, 2:25 PM EDTAreal Flood AdvisoryALYNorthwest Hills Planning Region3 hr
Jun 8, 2:51 PM EDTSpecial Weather StatementALY24 min

Nearby

Severe Thunderstorm Warnings in Connecticut, 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.