Alert archive / Massachusetts / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 134, NWS Albany, NY

July 27, 2021Berkshire County, Massachusetts

NWS Albany, NY issued this severe thunderstorm warning at Jul 27, 2021, 5:19 PM EDT for Berkshire County, Massachusetts. It was in force for 41 min. 4 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 27, 2021, 5:19 PM EDT (21:19 UTC)
Expired
Jul 27, 2021, 6:00 PM EDT
In force
41 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), 85 km from the middle of the area, began a volume at 21:22 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
Jul 27, 5:24 PM EDTTSTM WND DMGPittsfield, MATREE DOWNED ON CIRCULAR AVENUE
Jul 27, 5:26 PM EDTTSTM WND DMG1 Ese Lenox, MAWIRES DOWNED AT THE CORNER OF HOUSATONIC STREET AND HIGH STREET
Jul 27, 5:27 PM EDTTSTM WND DMG2 Ne Lenox, MATREE AND WIRES DOWNED ON A HOUSE ON EAST STREET
Jul 27, 5:28 PM EDTTSTM WND DMG3 Nne Lenox, MATREES DOWNED ON A HOUSE ON NEW LENOX ROAD

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
Jul 27, 2:47 PM EDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 9.3 hours before the alert went out and 73 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 2021-07-27Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Albany, NY at 12:00Z on 2021-07-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 35 square meters per square second.19395878Sfc1 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
1464 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
35 m²/s²
0-3 km storm-relative helicity
46 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

645 
WUUS51 KALY 272119
SVRALY
MAC003-272200-
/O.NEW.KALY.SV.W.0134.210727T2119Z-210727T2200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Albany NY
519 PM EDT Tue Jul 27 2021

The National Weather Service in Albany has issued a

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

* Until 600 PM EDT.

* At 519 PM EDT, a severe thunderstorm was located near Lenox, or
  near Pittsfield, moving east at 35 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Pittsfield, Lee, Lenox, Becket, Otis, Hinsdale, Stockbridge,
  Richmond, West Stockbridge, Washington, Tyringham, Barkerville,
  Mahkeenac Heights, North Otis, Glendale, Tanglewood, New Lenox,
  Lenox Dale, The Center At Lenox and Adams Junction.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Persons in campgrounds should consider seeking sturdy shelter until
this storm passes. Remember, lightning can strike out to 15 miles
from the parent thunderstorm. If you can hear thunder, you are close
enough to be struck by lightning. Move to safe shelter now!

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 4218 7302 4231 7343 4249 7336 4242 7300
      4238 7301 4239 7306 4238 7307 4233 7306
      4231 7303 4231 7300 4225 7300
TIME...MOT...LOC 2119Z 289DEG 32KT 4239 7334 

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

BGM
2 follow-up statements
094 
WWUS51 KALY 272148
SVSALY

Severe Weather Statement
National Weather Service Albany NY
548 PM EDT Tue Jul 27 2021

MAC003-272200-
/O.CON.KALY.SV.W.0134.000000T0000Z-210727T2200Z/
Berkshire MA-
548 PM EDT Tue Jul 27 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM EDT
FOR CENTRAL BERKSHIRE COUNTY...

At 548 PM EDT, a severe thunderstorm was located over Becket, or 14
miles southeast of 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, Lee, Lenox, Becket, Otis, Stockbridge, Washington,
Tyringham, Mahkeenac Heights, North Otis, Tanglewood, New Lenox,
Lenox Dale, The Center At Lenox, Yankee Orchards, Stearnsville,
Mahkeenac Terrace, Tanglewood Performing Arts Center, Interlaken and
Wheatleigh.

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 4218 7302 4229 7336 4247 7329 4241 7300
      4238 7301 4239 7306 4238 7307 4233 7306
      4231 7303 4231 7300 4225 7300
TIME...MOT...LOC 2148Z 288DEG 27KT 4231 7305 

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

BGM
211 
WWUS51 KALY 272159
SVSALY

Severe Weather Statement
National Weather Service Albany NY
559 PM EDT Tue Jul 27 2021

MAC003-272209-
/O.EXP.KALY.SV.W.0134.000000T0000Z-210727T2200Z/
Berkshire MA-
559 PM EDT Tue Jul 27 2021

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL BERKSHIRE COUNTY WILL
EXPIRE AT 600 PM EDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.  However heavy rain
is still possible with this thunderstorm.

A Severe Thunderstorm Watch remains in effect until 1000 PM EDT for
western Massachusetts.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Albany.

LAT...LON 4218 7302 4229 7336 4247 7329 4241 7300
      4238 7301 4239 7306 4238 7307 4233 7306
      4231 7303 4231 7300 4225 7300
TIME...MOT...LOC 2159Z 289DEG 32KT 4228 7294 

$$

BGM

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 27, 4:30 PM EDTSevere Thunderstorm WarningALYBerkshire43 min
Jul 27, 5:16 PM EDTSpecial Weather StatementALYBerkshire44 min
Jul 27, 5:25 PM EDTAreal Flood AdvisoryALYBerkshire3 hr

Nearby

Severe Thunderstorm Warnings in Massachusetts, 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.