Alert archive / Massachusetts / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 99, NWS Albany, NY

July 7, 2021Berkshire County, Massachusetts; Rensselaer County, New York

NWS Albany, NY issued this severe thunderstorm warning at Jul 7, 2021, 6:48 PM EDT for Berkshire County, Massachusetts; Rensselaer County, New York. It was in force for 27 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, 6:48 PM EDT (22:48 UTC)
Expired
Jul 7, 2021, 7:15 PM EDT
In force
27 min
Issued by
NWS Albany, NY
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Berkshire County, MA, Rensselaer County, NY

The radar

The Albany radar (KENX), 81 km from the middle of the area, began a volume at 22:51 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.

IssuedProductOfficeLasted
Jul 7, 2:41 PM EDTSevere Thunderstorm WatchSPC10 hr

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 10.8 hours before the alert went out and 62 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 2021-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 18 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 2021-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 49 square meters per square second.193958Sfc1 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
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.

040 
WUUS51 KALY 072248
SVRALY
MAC003-NYC083-072345-
/O.NEW.KALY.SV.W.0099.210707T2248Z-210707T2345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Albany NY
648 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...
  Southeastern Rensselaer County in east central New York...

* Until 745 PM EDT.

* At 647 PM EDT, a severe thunderstorm was located over Averill Park,
  or 10 miles northeast of Nassau, moving east at 30 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...
  North Adams, Adams, Williamstown, Cheshire, Stephentown, Berlin,
  Florida, Hancock, Savoy, New Ashford, West Sand Lake, Averill Park,
  Brunswick, Sand Lake, Poestenkill, East Nassau, Hairpin Turn,
  Greylock, Soldiers Memorial Field and West Stephentown.

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 4256 7297 4252 7367 4274 7362 4274 7302
      4270 7302 4270 7295 4269 7295 4269 7298
      4268 7298 4267 7300 4266 7298 4267 7296
      4264 7295
TIME...MOT...LOC 2247Z 262DEG 25KT 4264 7350 

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

NAS
2 follow-up statements
064 
WWUS51 KALY 072307
SVSALY

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

MAC003-NYC083-072345-
/O.CON.KALY.SV.W.0099.000000T0000Z-210707T2345Z/
Berkshire MA-Rensselaer NY-
707 PM EDT Wed Jul 7 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM EDT
FOR NORTHEASTERN BERKSHIRE AND SOUTHEASTERN RENSSELAER COUNTIES...

At 707 PM EDT, a severe thunderstorm was located near Berlin, or 10
miles west of North Adams, moving east at 30 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...
North Adams, Adams, Williamstown, Cheshire, Stephentown, Berlin,
Florida, Hancock, Savoy, New Ashford, Hairpin Turn, Greylock,
Soldiers Memorial Field, North Hancock, Cheshire Harbor, Arnoldville,
Center Berlin, Braytonville, Zylonite and Bowens Corners.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4253 7347 4274 7341 4274 7302 4270 7302
      4270 7295 4269 7295 4269 7298 4268 7298
      4267 7300 4266 7298 4267 7296 4264 7295
      4256 7297
TIME...MOT...LOC 2307Z 262DEG 25KT 4266 7331 

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

NAS
703 
WWUS51 KALY 072315
SVSALY

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

MAC003-NYC083-072325-
/O.CAN.KALY.SV.W.0099.000000T0000Z-210707T2345Z/
Berkshire MA-Rensselaer NY-
715 PM EDT Wed Jul 7 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN BERKSHIRE AND
SOUTHEASTERN RENSSELAER COUNTIES IS CANCELLED...
    
The severe thunderstorm which prompted the warning has weakened.
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 4253 7347 4274 7341 4274 7302 4270 7302
      4270 7295 4269 7295 4269 7298 4268 7298
      4267 7300 4266 7298 4267 7296 4264 7295
      4256 7297
TIME...MOT...LOC 2312Z 262DEG 25KT 4267 7323 

$$

NAS

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 7, 3:19 PM EDTSpecial Weather StatementALYBerkshire26 min
Jul 7, 3:27 PM EDTSevere Thunderstorm WarningALYBerkshire13 min
Jul 7, 3:38 PM EDTSevere Thunderstorm WarningALYBerkshire67 min
Jul 7, 4:00 PM EDTSevere Thunderstorm WarningALYBerkshire15 min
Jul 7, 4:01 PM EDTAreal Flood AdvisoryALYBerkshire119 min
Jul 7, 4:16 PM EDTSevere Thunderstorm WarningALYBerkshire59 min
Jul 7, 5:23 PM EDTSevere Thunderstorm WarningALYBerkshire49 min
Jul 7, 7:53 PM EDTSpecial Weather StatementALYBerkshire52 min
Jul 7, 1:22 PM EDTSpecial Weather StatementALYSchoharie53 min
Jul 7, 2:14 PM EDTSpecial Weather StatementALYAlbany31 min
Jul 7, 2:25 PM EDTSevere Thunderstorm WarningALYAlbany, Greene, Schoharie35 min
Jul 7, 2:58 PM EDTSevere Thunderstorm WarningALYAlbany, Columbia, Greene, Rensselaer32 min
Jul 7, 3:07 PM EDTSpecial Weather StatementALYGreene23 min
Jul 7, 3:23 PM EDTSpecial Weather StatementALYColumbia37 min
Jul 7, 3:29 PM EDTSpecial Weather StatementALYRensselaer31 min
Jul 7, 3:29 PM EDTSevere Thunderstorm WarningALYColumbia, Greene31 min
Jul 7, 3:46 PM EDTSpecial Weather StatementALYGreene29 min
Jul 7, 4:41 PM EDTSpecial Weather StatementALYColumbia34 min
Jul 7, 4:44 PM EDTSevere Thunderstorm WarningALYColumbia, Dutchess31 min
Jul 7, 4:59 PM EDTSpecial Weather StatementALYColumbia16 min
Jul 7, 5:03 PM EDTSpecial Weather StatementALYGreene27 min
Jul 7, 5:19 PM EDTSpecial Weather StatementALYColumbia26 min
Jul 7, 5:42 PM EDTSevere Thunderstorm WarningALYSchoharie48 min
Jul 7, 6:03 PM EDTSpecial Weather StatementALYAlbany27 min
Jul 7, 6:06 PM EDTSevere Thunderstorm WarningALYAlbany, Rensselaer39 min
Jul 7, 6:15 PM EDTSpecial Weather StatementALYSchoharie30 min
Jul 7, 6:25 PM EDTSevere Thunderstorm WarningALYAlbany, Schoharie54 min
Jul 7, 6:35 PM EDTSevere Thunderstorm WarningALYAlbany, Schoharie70 min
Jul 7, 6:46 PM EDTSpecial Weather StatementALYRensselaer59 min
Jul 7, 7:06 PM EDTSpecial Weather StatementALYAlbany24 min
Jul 7, 7:22 PM EDTSpecial Weather StatementALYUlster38 min
Jul 7, 7:34 PM EDTSpecial Weather StatementALYColumbia41 min
Jul 7, 7:59 PM EDTSpecial Weather StatementALYDutchess46 min

Nearby

Severe Thunderstorm Warnings in Massachusetts, 2021Severe Thunderstorm Warnings in New York, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.