Alert archive / New York / Special Weather Statements in 2018

Special Weather Statement, NWS New York, NY

May 4, 2018Orange County, New York; Passaic County, New Jersey

NWS New York, NY issued this special weather statement at May 4, 2018, 8:13 PM EDT for Orange County, New York; Passaic County, New Jersey. It was in force for 92 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 4, 2018, 8:13 PM EDT (00:13 UTC)
Expired: May 4, 2018, 9:45 PM EDT
In force: 92 min
Issued by: NWS New York, NY

Counties Passaic County, NJ, Orange County, NY

The radar

The Brookhaven radar (KOKX), 133 km from the middle of the area, began a volume at 00:13 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 00:00Z, 0.2 hours before the alert went out and 155 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: 360 J/kg
Mixed-layer CIN: -29 J/kg
Mixed-layer LCL: 1408 m above ground
0-6 km bulk shear: 85 kt
0-1 km storm-relative helicity: 441 m²/s²
0-3 km storm-relative helicity: 455 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 6.3

Open this sounding in Storm Lab

The text

As transmitted.

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The office that day

Everything else NWS New York, NY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 4, 11:15 PM EDT	Special Marine Warning	OKX		30 min
May 4, 11:43 PM EDT	Special Weather Statement	OKX	Kings, Nassau, Queens	47 min
May 4, 11:54 PM EDT	Special Marine Warning	OKX		66 min

Nearby

Special Weather Statements in New York, 2018 Special Weather Statements in New Jersey, 2018 Every special weather statement in 2018

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.