Alert archive / New York / Mesoscale Discussions in 2015

Mesoscale Discussion 948

June 8, 2015Berkshire County, Massachusetts; 7 counties in New York; 4 counties in Pennsylvania

The Storm Prediction Center issued this mesoscale discussion at Jun 8, 2015, 7:12 PM EDT for Berkshire County, Massachusetts; 7 counties in New York; 4 counties in Pennsylvania. It was in force for 93 min.

The area

The outline as issued.

The facts

Issued: Jun 8, 2015, 7:12 PM EDT (23:12 UTC)
Expired: Jun 8, 2015, 8:45 PM EDT
In force: 93 min
Issued by: the Storm Prediction Center

Counties Berkshire County, MA, Columbia County, NY, Delaware County, NY, Dutchess County, NY, Greene County, NY, Orange County, NY, Sullivan County, NY, Ulster County, NY, Lackawanna County, PA, Luzerne County, PA, Pike County, PA, Wayne County, PA

The radar

The Albany radar (KENX), 76 km from the middle of the area, began a volume at 23:14 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, 11.2 hours before the alert went out and 93 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1333 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 405 m²/s²
0-3 km storm-relative helicity: 446 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 8, 1:39 PM EDT	Tornado Watch	SPC	Berkshire	6 hr
Jun 8, 11:41 AM EDT	Mesoscale Discussion	SPC	Allegany, Cayuga, Chemung, Chenango, Cortland, Livingston and 12 more	2 hr
Jun 8, 2:58 PM EDT	Mesoscale Discussion	SPC	Albany, Broome, Chemung, Chenango, Delaware, Fulton and 13 more	92 min
Jun 8, 1:31 PM EDT	Mesoscale Discussion	SPC	Adams, Bedford, Berks, Blair, Cambria, Cameron and 31 more	119 min
Jun 8, 2:34 PM EDT	Tornado Watch	SPC	Adams, Bedford, Blair, Centre, Clinton, Columbia and 19 more	5 hr
Jun 8, 3:20 PM EDT	Mesoscale Discussion	SPC	Adams, Berks, Bucks, Carbon, Centre, Chester and 25 more	85 min
Jun 8, 4:13 PM EDT	Tornado Watch	SPC	Berks, Bucks, Carbon, Chester, Lehigh, Monroe and 2 more	4 hr
Jun 8, 4:46 PM EDT	Mesoscale Discussion	SPC	Adams, Berks, Chester, Cumberland, Dauphin, Franklin and 6 more	59 min

Nearby

Mesoscale Discussions in New York, 2015 Mesoscale Discussions in Pennsylvania, 2015 Mesoscale Discussions in Massachusetts, 2015 Every mesoscale discussion in 2015

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.