Alert archive / Massachusetts / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 78, NWS Albany, NY

July 6, 2021Berkshire County, Massachusetts

NWS Albany, NY issued this severe thunderstorm warning at Jul 6, 2021, 3:15 PM EDT for Berkshire County, Massachusetts. It was in force for 60 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: Jul 6, 2021, 3:15 PM EDT (19:15 UTC)
Expired: Jul 6, 2021, 4:15 PM EDT
In force: 60 min
Issued by: NWS Albany, NY
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Berkshire County, MA

The radar

The Albany radar (KENX), 81 km from the middle of the area, began a volume at 19:15 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

Time	Report	Where	Remark
Jul 6, 3:16 PM EDT	TSTM WND DMG	2 Nnw Cheshire, MA	TREE DOWNED ON WIRES ON OUTLOOK AVENUE
Jul 6, 3:50 PM EDT	TSTM WND DMG	5 Wsw Cheshire, MA	TREES DOWN. TIME ESTIMATED BY RADAR.

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.

Issued	Product	Office	Lasted
Jul 6, 1:13 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 7.3 hours before the alert went out and 64 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 326 J/kg
Mixed-layer CIN: -120 J/kg
Mixed-layer LCL: 941 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 182 m²/s²
0-3 km storm-relative helicity: 202 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

787 
WUUS51 KALY 061915
SVRALY
MAC003-062015-
/O.NEW.KALY.SV.W.0078.210706T1915Z-210706T2015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Albany NY
315 PM EDT Tue Jul 6 2021

The National Weather Service in Albany has issued a

* Severe Thunderstorm Warning for...
  Northeastern Berkshire County in western Massachusetts...

* Until 415 PM EDT.

* At 314 PM EDT, a severe thunderstorm was located near Savoy, or 10
  miles south of North Adams, moving east at 30 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Pittsfield, Adams, Cheshire, Hancock, Savoy, New Ashford,
  Berkshire, Dalton, Lanesborough, Hinsdale, Windsor, Peru, Soldiers
  Memorial Field, North Hancock, Cheshire Harbor, Arnoldville, Town
  Crest Village, Lakeview Terrace, Maple Grove and The Boulders.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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 4254 7298 4254 7297 4239 7301 4244 7338
      4264 7330 4262 7296
TIME...MOT...LOC 1914Z 280DEG 27KT 4254 7307 

HAIL...<.75IN
WIND...60MPH
 
$$

BGM

2 follow-up statements

785 
WWUS51 KALY 062000
SVSALY

Severe Weather Statement
National Weather Service Albany NY
400 PM EDT Tue Jul 6 2021

MAC003-062015-
/O.CON.KALY.SV.W.0078.000000T0000Z-210706T2015Z/
Berkshire MA-
400 PM EDT Tue Jul 6 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM EDT
FOR NORTHEASTERN BERKSHIRE COUNTY...

At 400 PM EDT, a severe thunderstorm was located near Cheshire, or
near Pittsfield, moving east at 30 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Pittsfield, Adams, Cheshire, Hancock, Savoy, New Ashford, Berkshire,
Dalton, Lanesborough, Hinsdale, Windsor, Peru, Soldiers Memorial
Field, North Hancock, Cheshire Harbor, Arnoldville, Town Crest
Village, Lakeview Terrace, Maple Grove and The Boulders.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 4254 7298 4254 7297 4239 7301 4244 7338
      4264 7330 4262 7296
TIME...MOT...LOC 2000Z 270DEG 26KT 4248 7314 

HAIL...<.75IN
WIND...60MPH
 
$$

BGM

725 
WWUS51 KALY 062011
SVSALY

Severe Weather Statement
National Weather Service Albany NY
411 PM EDT Tue Jul 6 2021

MAC003-062021-
/O.EXP.KALY.SV.W.0078.000000T0000Z-210706T2015Z/
Berkshire MA-
411 PM EDT Tue Jul 6 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN BERKSHIRE COUNTY
WILL EXPIRE AT 415 PM EDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
western Massachusetts...and east central New York.

LAT...LON 4254 7298 4254 7297 4239 7301 4244 7338
      4264 7330 4262 7296
TIME...MOT...LOC 2011Z 280DEG 27KT 4247 7304 

$$

BGM

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 6, 2:34 PM EDT	Special Weather Statement	ALY	Berkshire	56 min
Jul 6, 3:16 PM EDT	Special Weather Statement	ALY	Berkshire	44 min
Jul 6, 3:36 PM EDT	Areal Flood Advisory	ALY	Berkshire	97 min
Jul 6, 3:39 PM EDT	Special Weather Statement	ALY	Berkshire	51 min
Jul 6, 3:49 PM EDT	Severe Thunderstorm Warning	ALY	Berkshire	56 min
Jul 6, 4:13 PM EDT	Severe Thunderstorm Warning	ALY	Berkshire	49 min
Jul 6, 4:29 PM EDT	Areal Flood Advisory	ALY	Berkshire	2 hr

Nearby

Severe Thunderstorm Warnings in Massachusetts, 2021 Every 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.