Alert archive / New York / Mesoscale Discussions in 2016

Mesoscale Discussion 1546

August 16, 201619 counties in New York; Bennington County, Vermont

The Storm Prediction Center issued this mesoscale discussion at Aug 16, 2016, 5:54 PM EDT for 19 counties in New York; Bennington County, Vermont. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: Aug 16, 2016, 5:54 PM EDT (21:54 UTC)
Expired: Aug 16, 2016, 8:00 PM EDT
In force: 2 hr
Issued by: the Storm Prediction Center

Counties Albany County, NY, Cayuga County, NY, Fulton County, NY, Hamilton County, NY, Herkimer County, NY, Jefferson County, NY, Lewis County, NY, Madison County, NY, Montgomery County, NY, Oneida County, NY, Onondaga County, NY, Oswego County, NY, Otsego County, NY, Rensselaer County, NY, Saratoga County, NY, Schenectady County, NY, Schoharie County, NY, Warren County, NY, Washington County, NY, Bennington County, VT

The radar

The Ft Drum radar (KTYX), 64 km from the middle of the area, began a volume at 21:58 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, 9.9 hours before the alert went out and 128 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: 1098 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 134 m²/s²
0-3 km storm-relative helicity: 174 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 16, 3:57 PM EDT	Mesoscale Discussion	SPC	Cayuga, Fulton, Herkimer, Livingston, Madison, Monroe and 8 more	93 min
Aug 16, 5:15 PM EDT	Severe Thunderstorm Watch	SPC	Albany, Cayuga, Fulton, Hamilton, Herkimer, Jefferson and 14 more	5 hr

Nearby

Mesoscale Discussions in New York, 2016 Mesoscale Discussions in Vermont, 2016 Every mesoscale discussion in 2016

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.