Alert archive / New York / Mesoscale Discussions in 2019

Mesoscale Discussion 862

May 28, 2019Bergen County, Passaic County, Sussex County, New Jersey; 5 counties in New York

The Storm Prediction Center issued this mesoscale discussion at May 28, 2019, 6:08 PM EDT for Bergen County, Passaic County, Sussex County, New Jersey; 5 counties in New York. It was in force for 97 min.

The area

The outline as issued.

The facts

Issued: May 28, 2019, 6:08 PM EDT (22:08 UTC)
Expired: May 28, 2019, 7:45 PM EDT
In force: 97 min
Issued by: the Storm Prediction Center

Counties Bergen County, NJ, Passaic County, NJ, Sussex County, NJ, Bronx County, NY, Orange County, NY, Rockland County, NY, Sullivan County, NY, Westchester County, NY

The radar

The Albany radar (KENX), 125 km from the middle of the area, began a volume at 22:09 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, 10.1 hours before the alert went out and 144 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: 1087 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 117 m²/s²
0-3 km storm-relative helicity: 253 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
May 28, 1:02 PM EDT	Mesoscale Discussion	SPC	Burlington, Camden, Cumberland, Essex, Gloucester, Hunterdon and 8 more	118 min
May 28, 1:48 PM EDT	Tornado Watch	SPC	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 4 more	8 hr
May 28, 4:43 PM EDT	Mesoscale Discussion	SPC	Burlington, Camden, Gloucester, Hunterdon, Mercer, Morris and 3 more	2 hr
May 28, 5:34 PM EDT	Mesoscale Discussion	SPC	Atlantic, Cape May, Cumberland, Salem	86 min

Nearby

Mesoscale Discussions in New York, 2019 Mesoscale Discussions in New Jersey, 2019 Every mesoscale discussion in 2019

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.