Alert archive / Massachusetts / Special Weather Statements in 2021

Special Weather Statement, NWS Albany, NY

August 30, 2021Berkshire County, Massachusetts

NWS Albany, NY issued this special weather statement at Aug 30, 2021, 6:21 PM EDT for Berkshire County, Massachusetts. It was in force for 24 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
Aug 30, 2021, 6:21 PM EDT (22:21 UTC)
Expired
Aug 30, 2021, 6:45 PM EDT
In force
24 min
Issued by
NWS Albany, NY
Hail
0.25 in
Wind
30

County Berkshire County, MA

The radar

The Albany radar (KENX), 71 km from the middle of the area, began a volume at 22:21 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 nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 10.4 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-pSkew-T log-p diagram, Albany, NY at 12:00Z on 2021-08-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 55 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, Albany, NY at 12:00Z on 2021-08-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 188 square meters per square second.1939Sfc1 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
55 J/kg
Mixed-layer CIN
-160 J/kg
Mixed-layer LCL
690 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
188 m²/s²
0-3 km storm-relative helicity
254 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

360 
WWUS81 KALY 302221
SPSALY

Special Weather Statement
National Weather Service Albany NY
621 PM EDT Mon Aug 30 2021
 
MAZ025-NYZ061-302245-
Southern Berkshire MA-Eastern Columbia NY-
621 PM EDT Mon Aug 30 2021

...A strong thunderstorm will impact portions of southwestern
Berkshire and east central Columbia Counties through 645 PM EDT...

At 621 PM EDT, Doppler radar was tracking a strong thunderstorm near
Austerlitz, or 7 miles northwest of Great Barrington, moving
southeast at 15 mph.

HAZARD...Winds in excess of 30 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around 
         unsecured objects. Minor damage to outdoor objects is 
         possible.

Locations impacted include...
Great Barrington, Lee, Lenox, Sheffield, Austerlitz, Housatonic,
Ashley Falls, Stockbridge, Hillsdale, Richmond, West Stockbridge,
Monterey, Alford, Tyringham, Hartsville, Glendale, North Hillsdale,
Williamsville, Harlemville and North Egremont.

People attending Tanglewood should seek safe shelter immediately!

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

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

&&

LAT...LON 4224 7308 4205 7333 4205 7342 4228 7362
      4231 7362 4239 7335
TIME...MOT...LOC 2221Z 305DEG 15KT 4226 7346 

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...30 MPH

$$

ATE

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 30, 3:14 PM EDTFlash Flood WatchALYAlbany, Columbia, Dutchess, Greene, Rensselaer, Schoharie and 1 more61 hr
Aug 30, 3:41 PM EDTSpecial Weather StatementALYRensselaer34 min
Aug 30, 5:07 PM EDTSpecial Weather StatementALYPutnam23 min
Aug 30, 6:48 PM EDTSpecial Weather StatementALYBerkshire27 min

Nearby

Special Weather Statements in Massachusetts, 2021Every special weather statement 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.