Alert archive / New York / Mesoscale Discussions in 2015

Mesoscale Discussion 967

June 10, 201512 counties in New York

The Storm Prediction Center issued this mesoscale discussion at Jun 10, 2015, 10:53 PM EDT for 12 counties in New York. It was in force for 67 min.

The area

The outline as issued.

The facts

Issued: Jun 10, 2015, 10:53 PM EDT (02:53 UTC)
Expired: Jun 11, 2015, 12:00 AM EDT
In force: 67 min
Issued by: the Storm Prediction Center

Counties Cayuga County, NY, Hamilton County, NY, Herkimer County, NY, Jefferson County, NY, Lewis County, NY, Oneida County, NY, Onondaga County, NY, Ontario County, NY, Oswego County, NY, Seneca County, NY, Wayne County, NY, Yates County, NY

The radar

The Ft Drum radar (KTYX), 67 km from the middle of the area, began a volume at 02:56 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

Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 2.9 hours before the alert went out and 202 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: 466 J/kg
Mixed-layer CIN: -71 J/kg
Mixed-layer LCL: 1597 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 141 m²/s²
0-3 km storm-relative helicity: 125 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 2.2

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 10, 9:02 PM EDT	Severe Thunderstorm Watch	SPC	Cayuga, Chenango, Cortland, Hamilton, Herkimer, Jefferson and 10 more	4 hr
Jun 11, 2:47 PM EDT	Mesoscale Discussion	SPC	New York, Richmond, Rockland, Westchester	118 min

Nearby

Mesoscale Discussions in New York, 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.