Alert archive / Massachusetts / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 88, NWS Albany, NY

July 7, 2021Berkshire County, Massachusetts

NWS Albany, NY issued this severe thunderstorm warning at Jul 7, 2021, 3:27 PM EDT for Berkshire County, Massachusetts. It was in force for 13 min. 1 report 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 7, 2021, 3:27 PM EDT (19:27 UTC)
Expired: Jul 7, 2021, 3:40 PM EDT
In force: 13 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), 82 km from the middle of the area, began a volume at 19:26 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 7, 3:32 PM EDT	TSTM WND DMG	4 Wsw Cheshire, MA	A TREE WAS DOWNED ON WIRES ON NORTH MAIN STREET IN LANESBOROUGH

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 7, 2:41 PM EDT	Severe Thunderstorm Watch	SPC	10 hr

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 7.5 hours before the alert went out and 65 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: 18 J/kg
Mixed-layer CIN: -132 J/kg
Mixed-layer LCL: 923 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 49 m²/s²
0-3 km storm-relative helicity: 64 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

003 
WUUS51 KALY 071927
SVRALY
MAC003-072015-
/O.NEW.KALY.SV.W.0088.210707T1927Z-210707T2015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Albany NY
327 PM EDT Wed Jul 7 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 327 PM EDT, a severe thunderstorm was located near New Ashford,
  or 7 miles north of Pittsfield, moving east at 25 mph.

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

  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.

&&

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 4255 7298 4254 7298 4254 7297 4238 7301
      4248 7336 4266 7330 4262 7296
TIME...MOT...LOC 1927Z 284DEG 22KT 4256 7324 

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

NAS

1 follow-up statement

546 
WWUS51 KALY 071940
SVSALY

Severe Weather Statement
National Weather Service Albany NY
340 PM EDT Wed Jul 7 2021

MAC003-071950-
/O.CAN.KALY.SV.W.0088.000000T0000Z-210707T2015Z/
Berkshire MA-
340 PM EDT Wed Jul 7 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN BERKSHIRE COUNTY
IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 1100 PM EDT for
western Massachusetts...and east central New York.

LAT...LON 4255 7298 4254 7298 4254 7297 4238 7301
      4248 7336 4266 7330 4262 7296
TIME...MOT...LOC 1937Z 284DEG 22KT 4254 7314 

$$

NAS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 7, 3:19 PM EDT	Special Weather Statement	ALY	Berkshire	26 min
Jul 7, 3:38 PM EDT	Severe Thunderstorm Warning	ALY	Berkshire	67 min
Jul 7, 4:00 PM EDT	Severe Thunderstorm Warning	ALY	Berkshire	15 min
Jul 7, 4:01 PM EDT	Areal Flood Advisory	ALY	Berkshire	119 min
Jul 7, 4:16 PM EDT	Severe Thunderstorm Warning	ALY	Berkshire	59 min
Jul 7, 5:23 PM EDT	Severe Thunderstorm Warning	ALY	Berkshire	49 min
Jul 7, 6:48 PM EDT	Severe Thunderstorm Warning	ALY	Berkshire	27 min
Jul 7, 7:53 PM EDT	Special Weather Statement	ALY	Berkshire	52 min

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.