Alert archive / New York / Mesoscale Discussions in 2014

Mesoscale Discussion 77

February 5, 20144 states

The Storm Prediction Center issued this mesoscale discussion at Feb 5, 2014, 11:35 AM EST for 4 states. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued: Feb 5, 2014, 11:35 AM EST (16:35 UTC)
Expired: Feb 5, 2014, 4:30 PM EST
In force: 5 hr
Issued by: the Storm Prediction Center

All 60 counties

Androscoggin County, ME, Oxford County, ME, Belknap County, NH, Carroll County, NH, Cheshire County, NH, Coos County, NH, Grafton County, NH, Hillsborough County, NH, Merrimack County, NH, Strafford County, NH, Sullivan County, NH, Albany County, NY, Allegany County, NY, Broome County, NY, Cayuga County, NY, Chemung County, NY, Chenango County, NY, Clinton County, NY, Cortland County, NY, Delaware County, NY, Essex County, NY, Franklin County, NY, Fulton County, NY, Greene County, NY, Hamilton County, NY, Herkimer County, NY, Lewis County, NY, Livingston County, NY, Madison County, NY, Montgomery County, NY, Oneida County, NY, Onondaga County, NY, Ontario County, NY, Otsego County, NY, Rensselaer County, NY, Saratoga County, NY, Schenectady County, NY, Schoharie County, NY, Schuyler County, NY, Seneca County, NY, St. Lawrence County, NY, Steuben County, NY, Tioga County, NY, Tompkins County, NY, Warren County, NY, Washington County, NY, Wyoming County, NY, Yates County, NY, Addison County, VT, Bennington County, VT, Caledonia County, VT, Chittenden County, VT, Essex County, VT, Grand Isle County, VT, Lamoille County, VT, Orange County, VT, Rutland County, VT, Washington County, VT, Windham County, VT, Windsor County, VT

The radar

The Albany radar (KENX), 101 km from the middle of the area, began a volume at 16:36 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

Brookhaven, NY (KOKX), launched 12:00Z, 4.6 hours before the alert went out and 315 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: 419 m above ground
0-6 km bulk shear: 96 kt
0-1 km storm-relative helicity: 260 m²/s²
0-3 km storm-relative helicity: 1648 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
Feb 5, 6:45 AM EST	Mesoscale Discussion	SPC	Androscoggin, Cumberland, Hancock, Kennebec, Knox, Lincoln and 3 more	6 hr
Feb 5, 3:23 AM EST	Mesoscale Discussion	SPC	Cheshire, Hillsborough, Rockingham	5 hr
Feb 4, 8:12 PM EST	Mesoscale Discussion	SPC	Cattaraugus, Chautauqua	6 hr
Feb 5, 12:44 AM EST	Mesoscale Discussion	SPC	Bronx, Kings, Nassau, New York, Queens, Richmond	5 hr
Feb 5, 12:57 AM EST	Mesoscale Discussion	SPC	Albany, Allegany, Broome, Chemung, Chenango, Columbia and 19 more	5 hr

Nearby

Mesoscale Discussions in New York, 2014 Mesoscale Discussions in Vermont, 2014 Mesoscale Discussions in New Hampshire, 2014 Every mesoscale discussion in 2014

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.