Alert archive / New York / Mesoscale Discussions in 2014

Mesoscale Discussion 179

March 12, 20144 states

The Storm Prediction Center issued this mesoscale discussion at Mar 12, 2014, 12:52 PM EDT for 4 states. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued: Mar 12, 2014, 12:52 PM EDT (16:52 UTC)
Expired: Mar 12, 2014, 5:45 PM EDT
In force: 5 hr
Issued by: the Storm Prediction Center

All 40 counties

Androscoggin County, ME, Franklin County, ME, Kennebec County, ME, Oxford County, ME, Somerset County, ME, Carroll County, NH, Coos County, NH, Grafton County, NH, Sullivan County, NH, Cayuga County, NY, Clinton County, NY, Cortland County, NY, Essex County, NY, Franklin County, NY, Fulton County, NY, Hamilton County, NY, Herkimer County, NY, Lewis County, NY, Madison County, NY, Oneida County, NY, Onondaga County, NY, Oswego County, NY, Saratoga County, NY, Seneca County, NY, St. Lawrence County, NY, Tompkins County, NY, Warren County, NY, Washington County, NY, Yates County, NY, Addison County, VT, Caledonia County, VT, Chittenden County, VT, Essex County, VT, Grand Isle County, VT, Lamoille County, VT, Orange County, VT, Orleans County, VT, Rutland County, VT, Washington County, VT, Windsor County, VT

The radar

The Burlington radar (KCXX), 52 km from the middle of the area, began a volume at 16:52 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, 4.9 hours before the alert went out and 357 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: 1464 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 211 m²/s²
0-3 km storm-relative helicity: 278 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
Mar 12, 6:01 PM EDT	Mesoscale Discussion	SPC	Androscoggin, Aroostook, Franklin, Kennebec, Oxford, Penobscot and 2 more	6 hr
Mar 12, 8:31 AM EDT	Mesoscale Discussion	SPC	Cattaraugus, Cayuga, Chautauqua, Erie, Genesee, Livingston and 10 more	4 hr

Nearby

Mesoscale Discussions in New York, 2014 Mesoscale Discussions in Vermont, 2014 Mesoscale Discussions in Maine, 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.