Alert archive / New York / Mesoscale Discussions in 2005

Mesoscale Discussion 2296

September 29, 20054 states

The Storm Prediction Center issued this mesoscale discussion at Sep 29, 2005, 8:23 AM EDT for 4 states. It was in force for 97 min.

The area

The outline as issued.

The facts

Issued: Sep 29, 2005, 8:23 AM EDT (12:23 UTC)
Expired: Sep 29, 2005, 10:00 AM EDT
In force: 97 min
Issued by: the Storm Prediction Center

All 38 counties

Sussex County, NJ, Warren County, NJ, Albany County, NY, Broome County, NY, Chenango County, NY, Clinton County, NY, Delaware County, NY, Essex County, NY, Franklin County, NY, Fulton County, NY, Greene County, NY, Hamilton County, NY, Herkimer County, NY, Madison County, NY, Montgomery County, NY, Oneida County, NY, Orange County, NY, Otsego County, NY, Saratoga County, NY, Schenectady County, NY, Schoharie County, NY, Sullivan County, NY, Ulster County, NY, Warren County, NY, Washington County, NY, Berks County, PA, Carbon County, PA, Lackawanna County, PA, Lehigh County, PA, Luzerne County, PA, Monroe County, PA, Northampton County, PA, Pike County, PA, Schuylkill County, PA, Susquehanna County, PA, Wayne County, PA, Wyoming County, PA, Grand Isle County, VT

The radar

The Albany radar (KENX), 58 km from the middle of the area, began a volume at 12:25 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, 0.4 hours before the alert went out and 78 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: 737 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 411 m²/s²
0-3 km storm-relative helicity: 431 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
Sep 29, 6:09 AM EDT	Mesoscale Discussion	SPC	Bergen, Essex, Hudson, Hunterdon, Mercer, Middlesex and 6 more	66 min
Sep 29, 6:45 AM EDT	Severe Thunderstorm Watch	SPC	Hunterdon, Morris, Passaic, Somerset, Sussex, Warren	6 hr
Sep 29, 10:58 AM EDT	Mesoscale Discussion	SPC	Sussex, Warren	2 hr
Sep 29, 12:09 PM EDT	Mesoscale Discussion	SPC	Passaic, Sussex, Warren	96 min
Sep 29, 3:40 AM EDT	Mesoscale Discussion	SPC	Allegany, Cattaraugus, Chautauqua, Erie, Genesee, Livingston and 4 more	2 hr
Sep 29, 4:15 AM EDT	Severe Thunderstorm Watch	SPC	Allegany, Cattaraugus, Cayuga, Chautauqua, Chemung, Erie and 13 more	5 hr

Nearby

Mesoscale Discussions in New York, 2005 Mesoscale Discussions in Pennsylvania, 2005 Mesoscale Discussions in New Jersey, 2005 Every mesoscale discussion in 2005

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.