Alert archive / New York / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 72, NWS Albany, NY

June 30, 2021Dutchess County, New York; Northwest Hills Planning Region, Connecticut

NWS Albany, NY issued this severe thunderstorm warning at Jun 30, 2021, 7:08 PM EDT for Dutchess County, New York; Northwest Hills Planning Region, Connecticut. It was in force for 67 min. 5 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 30, 2021, 7:08 PM EDT (23:08 UTC)
Expired
Jun 30, 2021, 8:15 PM EDT
In force
67 min
Issued by
NWS Albany, NY
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Northwest Hills Planning Region, CT, Dutchess County, NY

The radar

The Brookhaven radar (KOKX), 101 km from the middle of the area, began a volume at 23:08 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 30, 7:09 PM EDTTSTM WND DMGWarren, CTTRANSFORMER EXPLOSION, TREES AND WIRES DOWN ON KENT ROAD AND CORNWALL ROAD
Jun 30, 7:32 PM EDTTSTM WND DMG1 Nne Harwinton, CTLOCAL LAW ENFORCEMENT RECEIVED MULTIPLE REPORTS OF TREES AND WIRES DOWN
Jun 30, 7:37 PM EDTTSTM WND DMG2 S Kent, CTTREES AND WIRES DOWN ON SOUTH KENT ROAD
Jun 30, 7:37 PM EDTTSTM WND DMG3 Nne New Milford, CTLOCAL LAW ENFORCEMENT RECEIVED SEVERAL REPORTS OF TREES DOWN
Jun 30, 8:05 PM EDTTSTM WND DMG2 Nne Thomaston, CTTREES AND WIRES DOWN ON MINOR AND HILL ROAD RESULTING IN ROAD CLOSURES.

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

The watch it was issued in

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

IssuedProductOfficeLasted
Jun 30, 3:21 PM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 11.1 hours before the alert went out and 101 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 2021-06-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 658 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, Brookhaven, NY at 12:00Z on 2021-06-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 48 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
658 J/kg
Mixed-layer CIN
-190 J/kg
Mixed-layer LCL
1595 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
48 m²/s²
0-3 km storm-relative helicity
67 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

325 
WUUS51 KALY 302308
SVRALY
CTC005-NYC027-010015-
/O.NEW.KALY.SV.W.0072.210630T2308Z-210701T0015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Albany NY
708 PM EDT Wed Jun 30 2021

The National Weather Service in Albany has issued a

* Severe Thunderstorm Warning for...
  Central Litchfield County in northern Connecticut...
  Southern Dutchess County in east central New York...

* Until 815 PM EDT.

* At 708 PM EDT, a severe thunderstorm was located over Red Oaks
  Mill, or near Poughkeepsie, moving east at 25 mph.

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

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Torrington, Poughkeepsie, New Milford, Pawling, Pleasant Valley,
  Thomaston, New Hartford, Wappingers Falls, Kent, Fishkill,
  Litchfield, Northwest Harwinton, Terryville, New Hartford Center,
  Fairview, Hopewell Junction, Red Oaks Mill, Myers Corner, New
  Preston and Cornwall Bridge.

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 4149 7394 4173 7394 4190 7291 4189 7294
      4181 7295 4180 7302 4165 7299 4159 7347
      4166 7349 4167 7352 4156 7354
TIME...MOT...LOC 2308Z 262DEG 22KT 4164 7385 

HAIL...1.00IN
WIND...60MPH
 
$$

KSL
1 follow-up statement
478 
WWUS51 KALY 302344
SVSALY

Severe Weather Statement
National Weather Service Albany NY
744 PM EDT Wed Jun 30 2021

NYC027-302354-
/O.CAN.KALY.SV.W.0072.000000T0000Z-210701T0015Z/
Dutchess NY-
744 PM EDT Wed Jun 30 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN DUTCHESS COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

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

LAT...LON 4190 7291 4189 7294 4181 7295 4180 7302
      4165 7299 4159 7347 4167 7344 4170 7343
      4183 7335
TIME...MOT...LOC 2344Z 266DEG 29KT 4168 7328 

$$

CTC005-010015-
/O.CON.KALY.SV.W.0072.000000T0000Z-210701T0015Z/
Litchfield CT-
744 PM EDT Wed Jun 30 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM EDT
FOR CENTRAL LITCHFIELD COUNTY...

At 744 PM EDT, a severe thunderstorm was located near New Preston, or
9 miles northeast of New Milford, moving east at 35 mph.

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

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Torrington, New Milford, Thomaston, New Hartford, Litchfield,
Northwest Harwinton, New Preston, Terryville, New Hartford Center,
Plymouth, Harwinton, Bethlehem, Washington, Goshen, Morris, Warren,
Bantam, West Torrington, Torringford and Haight Vineyard.

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 4190 7291 4189 7294 4181 7295 4180 7302
      4165 7299 4159 7347 4167 7344 4170 7343
      4183 7335
TIME...MOT...LOC 2344Z 266DEG 29KT 4168 7328 

HAIL...1.00IN
WIND...60MPH
 
$$

KSL

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 29, 8:33 PM EDTSpecial Weather StatementALYColumbia27 min
Jun 29, 8:53 PM EDTSpecial Weather StatementALYColumbia37 min
Jun 29, 9:29 PM EDTSpecial Weather StatementALYColumbia46 min
Jun 29, 10:53 PM EDTAreal Flood AdvisoryALYColumbia, Greene, Ulster3 hr
Jun 29, 11:05 PM EDTSevere Thunderstorm WarningALYColumbia, Greene, Ulster32 min
Jun 30, 11:14 AM EDTSpecial Weather StatementALYHamilton46 min
Jun 30, 11:59 AM EDTSpecial Weather StatementALYHamilton31 min
Jun 30, 12:50 PM EDTSpecial Weather StatementALYHerkimer25 min
Jun 30, 1:13 PM EDTSpecial Weather StatementALYWarren32 min
Jun 30, 1:16 PM EDTSpecial Weather StatementALYHamilton29 min
Jun 30, 1:22 PM EDTSevere Thunderstorm WarningALYHerkimer38 min
Jun 30, 1:41 PM EDTSevere Thunderstorm WarningALYFulton, Herkimer49 min
Jun 30, 1:45 PM EDTSpecial Weather StatementALYFulton45 min
Jun 30, 2:18 PM EDTSevere Thunderstorm WarningALYFulton, Montgomery, Saratoga, Schenectady, Warren42 min
Jun 30, 2:21 PM EDTSpecial Weather StatementALYSchenectady39 min
Jun 30, 2:41 PM EDTSpecial Weather StatementALYSchoharie34 min
Jun 30, 2:53 PM EDTSpecial Weather StatementALYColumbia37 min
Jun 30, 2:54 PM EDTSevere Thunderstorm WarningALYRensselaer, Saratoga, Schenectady, Washington36 min
Jun 30, 2:59 PM EDTSpecial Weather StatementALYMontgomery31 min
Jun 30, 3:00 PM EDTSpecial Weather StatementALYRensselaer30 min
Jun 30, 3:24 PM EDTSevere Thunderstorm WarningALYRensselaer, Washington30 min
Jun 30, 3:25 PM EDTAreal Flood AdvisoryALYRensselaer44 min
Jun 30, 3:31 PM EDTSpecial Weather StatementALYRensselaer29 min
Jun 30, 3:35 PM EDTAreal Flood AdvisoryALYRensselaer55 min
Jun 30, 3:35 PM EDTSevere Thunderstorm WarningALYColumbia40 min
Jun 30, 4:01 PM EDTSevere Thunderstorm WarningALYRensselaer27 min
Jun 30, 4:36 PM EDTSpecial Weather StatementALYSchoharie24 min
Jun 30, 4:47 PM EDTSevere Thunderstorm WarningALYAlbany, Schoharie43 min
Jun 30, 5:31 PM EDTSpecial Weather StatementALYColumbia44 min
Jun 30, 5:34 PM EDTSevere Thunderstorm WarningALYColumbia56 min
Jun 30, 5:43 PM EDTSpecial Weather StatementALYUlster47 min
Jun 30, 5:45 PM EDTSpecial Weather StatementALYColumbia30 min
Jun 30, 5:49 PM EDTAreal Flood AdvisoryALYColumbia80 min
Jun 30, 5:58 PM EDTFlash Flood WarningALYColumbia3 hr
Jun 30, 6:12 PM EDTSevere Thunderstorm WarningALYDutchess48 min
Jun 30, 6:32 PM EDTSevere Thunderstorm WarningALYUlster28 min
Jun 30, 6:34 PM EDTSevere Thunderstorm WarningALYDutchess, Ulster41 min
Jun 30, 6:58 PM EDTAreal Flood AdvisoryALYDutchess, Ulster107 min
Jun 29, 9:58 PM EDTSpecial Weather StatementALY47 min
Jun 30, 6:38 PM EDTSpecial Weather StatementALY37 min
Jun 30, 6:49 PM EDTSevere Thunderstorm WarningALYNorthwest Hills Planning Region56 min
Jun 30, 7:35 PM EDTSevere Thunderstorm WarningALYNorthwest Hills Planning Region40 min

Nearby

Severe Thunderstorm Warnings in New York, 2021Severe 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.