Alert archive / New York / Special Weather Statements in 2015

Special Weather Statement, NWS New York, NY

August 21, 2015Putnam County, New York

NWS New York, NY issued this special weather statement at Aug 21, 2015, 4:33 AM EDT for Putnam County, New York. It was in force for 27 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: Aug 21, 2015, 4:33 AM EDT (08:33 UTC)
Expired: Aug 21, 2015, 5:00 AM EDT
In force: 27 min
Issued by: NWS New York, NY

County Putnam County, NY

The radar

The Brookhaven radar (KOKX), 114 km from the middle of the area, began a volume at 08:33 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, 8.6 hours before the alert went out and 114 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: 178 J/kg
Mixed-layer CIN: -11 J/kg
Mixed-layer LCL: 657 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: 72 m²/s²
0-3 km storm-relative helicity: 121 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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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 21, 3:00 AM EDT	Areal Flood Advisory	OKX	Orange, Putnam, Rockland, Westchester	2 hr
Aug 21, 4:58 AM EDT	Areal Flood Advisory	OKX	Bronx, Kings, Nassau, New York, Queens, Suffolk	3 hr
Aug 21, 5:16 AM EDT	Flash Flood Warning	OKX	Bronx, Kings, Nassau, Queens, Suffolk	119 min

Nearby

Special Weather Statements in New York, 2015 Every special weather statement in 2015

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.