Alert archive / New York / Coastal Flood Statements in 2020

Coastal Flood Statement 62, NWS New York, NY

November 30, 2020Nassau County, Queens County, New York

NWS New York, NY issued this coastal flood statement at Nov 30, 2020, 8:36 PM EST for Nassau County, Queens County, New York. It took effect at Dec 1, 2020, 7:00 AM EST. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued: Nov 30, 2020, 8:36 PM EST (01:36 UTC)
In effect from: Dec 1, 2020, 7:00 AM EST
Expired: Dec 1, 2020, 9:00 AM EST
In force: 2 hr
Issued by: NWS New York, NY

Counties Nassau County, NY, Queens County, NY

The radar

The Brookhaven radar (KOKX), 74 km from the middle of the area, began a volume at 01:35 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, 1.6 hours before the alert went out and 74 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: 314 J/kg
Mixed-layer CIN: -19 J/kg
Mixed-layer LCL: 511 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 491 m²/s²
0-3 km storm-relative helicity: 501 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 4.8

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this coastal flood statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS New York, NY wrote its last area forecast discussion before this coastal flood statement went out at Nov 30, 6:54 PM EST, 1 hour 42 minutes earlier.

Area forecast discussion, Nov 30, 6:54 PM EST, 1 hour 42 minutes before

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Hazardous weather outlook, Nov 30, 4:56 PM EST, 3 hours 40 minutes before

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In the hours before

Local storm report, Nov 30, 5:58 PM EST, 2 hours 38 minutes before

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Local storm report, Nov 30, 6:00 PM EST, 2 hours 36 minutes before

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Local storm report, Nov 30, 6:01 PM EST, 2 hours 35 minutes before

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Local storm report, Nov 30, 6:04 PM EST, 2 hours 32 minutes before

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Local storm report, Nov 30, 6:07 PM EST, 2 hours 29 minutes before

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Special weather statement, Nov 30, 6:48 PM EST, 1 hour 48 minutes before

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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
Nov 30, 8:03 PM EST	Small Craft Advisory	OKX		4 days
Dec 1, 11:57 AM EST	Coastal Flood Advisory	OKX	Suffolk	2 hr

Nearby

Coastal Flood Statements in New York, 2020 Every coastal flood statement in 2020

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.