Alert archive / New Jersey / Mesoscale Discussions in 2005

Mesoscale Discussion 99

January 14, 200513 counties in New Jersey; 9 counties in New York

The Storm Prediction Center issued this mesoscale discussion at Jan 14, 2005, 6:34 AM EST for 13 counties in New Jersey; 9 counties in New York. It was in force for 86 min.

The area

The outline as issued.

The facts

Issued: Jan 14, 2005, 6:34 AM EST (11:34 UTC)
Expired: Jan 14, 2005, 8:00 AM EST
In force: 86 min
Issued by: the Storm Prediction Center

All 22 counties

Atlantic County, NJ, Bergen County, NJ, Burlington County, NJ, Camden County, NJ, Cumberland County, NJ, Essex County, NJ, Gloucester County, NJ, Hudson County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Ocean County, NJ, Union County, NJ, Bronx County, NY, Kings County, NY, Nassau County, NY, New York County, NY, Putnam County, NY, Queens County, NY, Richmond County, NY, Rockland County, NY, Westchester County, NY

The radar

The Philadelphia radar (KDIX), 34 km from the middle of the area, began a volume at 11:35 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 00:00Z, 11.6 hours before the alert went out and 154 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: 587 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 248 m²/s²
0-3 km storm-relative helicity: 202 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
Jan 14, 4:40 AM EST	Severe Thunderstorm Watch	SPC		4 hr
Jan 14, 2:36 AM EST	Mesoscale Discussion	SPC	Atlantic, Bergen, Burlington, Camden, Cape May, Cumberland and 15 more	114 min
Jan 14, 2:09 AM EST	Mesoscale Discussion	SPC	Allegany, Broome, Cattaraugus, Cayuga, Chautauqua, Chemung and 33 more	6 hr

Nearby

Mesoscale Discussions in New Jersey, 2005 Mesoscale Discussions in New York, 2005 Mesoscale Discussions in Connecticut, 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.