Alert archive / Massachusetts / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 13, NWS Albany, NY

May 4, 2018Berkshire County, Massachusetts; Columbia County, New York

NWS Albany, NY issued this severe thunderstorm warning at May 4, 2018, 9:14 PM EDT for Berkshire County, Massachusetts; Columbia County, New York. It was in force for 61 min. 2 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: May 4, 2018, 9:14 PM EDT (01:14 UTC)
Expired: May 4, 2018, 10:15 PM EDT
In force: 61 min
Issued by: NWS Albany, NY
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Berkshire County, MA, Columbia County, NY

The radar

The Albany radar (KENX), 87 km from the middle of the area, began a volume at 01:17 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
May 4, 9:20 PM EDT	TSTM WND DMG	2 Nne Hillsdale, NY	TREE DOWN.
May 4, 9:20 PM EDT	TSTM WND DMG	3 Nw Philmont, NY	TREE AND WIRES DOWN.

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
May 4, 6:20 PM EDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Albany, NY (KALY), launched 00:00Z, 1.2 hours before the alert went out and 77 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: 360 J/kg
Mixed-layer CIN: -29 J/kg
Mixed-layer LCL: 1408 m above ground
0-6 km bulk shear: 85 kt
0-1 km storm-relative helicity: 441 m²/s²
0-3 km storm-relative helicity: 455 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 6.3

Open this sounding in Storm Lab

The text

As transmitted.

143 
WUUS51 KALY 050114
SVRALY
MAC003-NYC021-050215-
/O.NEW.KALY.SV.W.0013.180505T0114Z-180505T0215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Albany NY
914 PM EDT FRI MAY 4 2018

The National Weather Service in Albany has issued a

* Severe Thunderstorm Warning for...
  Southern Berkshire County in western Massachusetts...
  Central Columbia County in east central New York...

* Until 1015 PM EDT.

* At 913 PM EDT, severe thunderstorms were located along a line
  extending from New Lebanon to Claverack-Red Mills, moving east at
  55 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Severe thunderstorms will be near...
  Lenox around 920 PM EDT.
  Great Barrington, Becket and Housatonic around 935 PM EDT.
  Sheffield around 940 PM EDT.
  Sandisfield around 950 PM EDT.

Other locations impacted by these severe thunderstorms include
Hartsville, Konkapot, Alford, Churchtown, Montville, Glendale, North
Hillsdale, Williamsville, Brick Tavern and Lenox Dale.

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 4215 7303 4215 7307 4212 7306 4211 7307
      4209 7307 4204 7305 4204 7314 4220 7385
      4241 7351 4240 7301 4238 7301 4239 7306
      4238 7307 4233 7306 4231 7303 4231 7300
      4225 7300
TIME...MOT...LOC 0113Z 287DEG 46KT 4249 7336 4223 7375 

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

MSE

2 follow-up statements

396 
WWUS51 KALY 050143
SVSALY

Severe Weather Statement
National Weather Service Albany NY
943 PM EDT FRI MAY 4 2018

NYC021-050152-
/O.CAN.KALY.SV.W.0013.000000T0000Z-180505T0215Z/
Columbia NY-
943 PM EDT FRI MAY 4 2018

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL COLUMBIA COUNTY IS
CANCELLED...

The storms which prompted the warning have moved out of the warned 
area.  Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 200 AM EDT for
northern Connecticut...western Massachusetts...and east central New
York.

LAT...LON 4216 7303 4215 7303 4215 7307 4212 7306
      4211 7307 4209 7307 4204 7305 4204 7315
      4212 7350 4241 7339 4240 7301 4238 7301
      4240 7305 4238 7307 4233 7306 4231 7303
      4231 7300 4225 7300
TIME...MOT...LOC 0142Z 296DEG 27KT 4239 7305 4213 7344 

$$

MAC003-050215-
/O.CON.KALY.SV.W.0013.000000T0000Z-180505T0215Z/
Berkshire MA-
943 PM EDT FRI MAY 4 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 PM EDT
FOR SOUTHERN BERKSHIRE COUNTY...

At 942 PM EDT, severe thunderstorms were located along a line
extending from near Middlefield to near Sheffield, moving southeast
at 50 mph.

These storms have a history of producing wind damage. 

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

These severe storms will be near...
  Becket around 950 PM EDT.
  Sandisfield around 1010 PM EDT.

Other locations impacted by these severe thunderstorms include
Hartsville, Konkapot, Alford, Montville, Glendale, Williamsville,
Lenox Dale, Southfield, The Center At Lenox and East Otis.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4216 7303 4215 7303 4215 7307 4212 7306
      4211 7307 4209 7307 4204 7305 4204 7315
      4212 7350 4241 7339 4240 7301 4238 7301
      4240 7305 4238 7307 4233 7306 4231 7303
      4231 7300 4225 7300
TIME...MOT...LOC 0142Z 296DEG 27KT 4239 7305 4213 7344 

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

MSE

045 
WWUS51 KALY 050212
SVSALY

Severe Weather Statement
National Weather Service Albany NY
1012 PM EDT FRI MAY 4 2018

MAC003-050222-
/O.EXP.KALY.SV.W.0013.000000T0000Z-180505T0215Z/
Berkshire MA-
1012 PM EDT FRI MAY 4 2018

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN BERKSHIRE COUNTY WILL
EXPIRE AT 1015 PM EDT...
    
The storms which prompted the warning have weakened below severe
limits, and have exited the warned area. Therefore, the warning will
be allowed to expire.

LAT...LON 4216 7303 4215 7303 4215 7307 4212 7306
      4211 7307 4209 7307 4204 7305 4204 7315
      4212 7350 4241 7339 4240 7301 4238 7301
      4240 7305 4238 7307 4233 7306 4231 7303
      4231 7300 4225 7300
TIME...MOT...LOC 0212Z 287DEG 46KT 4228 7256 4202 7295 

$$

Frugis

The office that day

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

Issued	Product	Office	Counties	Lasted
May 4, 8:56 PM EDT	Severe Thunderstorm Warning	ALY	Berkshire	44 min
May 4, 8:00 PM EDT	Severe Thunderstorm Warning	ALY	Albany, Montgomery, Rensselaer, Saratoga, Schenectady, Schoharie and 1 more	60 min
May 4, 8:19 PM EDT	Severe Thunderstorm Warning	ALY	Albany, Columbia, Greene, Rensselaer, Schoharie	56 min
May 4, 8:28 PM EDT	Severe Thunderstorm Warning	ALY	Rensselaer, Washington	62 min
May 4, 8:34 PM EDT	Severe Thunderstorm Warning	ALY	Columbia, Dutchess, Greene, Ulster	56 min

Nearby

Severe Thunderstorm Warnings in Massachusetts, 2018 Severe Thunderstorm Warnings in New York, 2018 Every severe thunderstorm warning in 2018

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.