Alert archive / Massachusetts / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 91, NWS Albany, NY

July 7, 2021Berkshire County, Massachusetts

NWS Albany, NY issued this severe thunderstorm warning at Jul 7, 2021, 4:00 PM EDT for Berkshire County, Massachusetts. It was in force for 15 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 7, 2021, 4:00 PM EDT (20:00 UTC)
Expired: Jul 7, 2021, 4:15 PM EDT
In force: 15 min
Issued by: NWS Albany, NY
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Berkshire County, MA

The radar

The Albany radar (KENX), 86 km from the middle of the area, began a volume at 20:02 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.

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, 8.0 hours before the alert went out and 69 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.

109 
WUUS51 KALY 072000
SVRALY
MAC003-072015-
/O.NEW.KALY.SV.W.0091.210707T2000Z-210707T2015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Albany NY
400 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 359 PM EDT, a severe thunderstorm was located over East Windsor,
  or 12 miles east of Pittsfield, 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...
  Savoy, Hinsdale, Windsor, Peru and Brier. 

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 4255 7298 4254 7298 4254 7297 4240 7301
      4242 7314 4260 7311 4259 7297
TIME...MOT...LOC 1959Z 277DEG 24KT 4250 7302 

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

ATE

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, 3:27 PM EDT	Severe Thunderstorm Warning	ALY	Berkshire	13 min
Jul 7, 3:38 PM EDT	Severe Thunderstorm Warning	ALY	Berkshire	67 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.