Alert archive / New York / Coastal Flood Statements in 2018

Coastal Flood Statement 16, NWS New York, NY

May 27, 2018Nassau County, Queens County, New York

NWS New York, NY issued this coastal flood statement at May 27, 2018, 3:20 AM EDT for Nassau County, Queens County, New York. It took effect at May 27, 2018, 7:00 PM EDT. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued: May 27, 2018, 3:20 AM EDT (07:20 UTC)
In effect from: May 27, 2018, 7:00 PM EDT
Expired: May 27, 2018, 10:00 PM EDT
In force: 3 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 07:22 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, 7.3 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: 861 J/kg
Mixed-layer CIN: -92 J/kg
Mixed-layer LCL: 1209 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 83 m²/s²
0-3 km storm-relative helicity: 84 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.2

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 May 26, 11:54 PM EDT, 3 hours 26 minutes earlier.

Area forecast discussion, May 26, 11:54 PM EDT, 3 hours 26 minutes before

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Hazardous weather outlook, May 26, 11:55 PM EDT, 3 hours 25 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
May 26, 11:45 PM EDT	Flash Flood Watch	OKX	Bronx, Kings, Nassau, New York, Queens, Richmond	10 hr
May 27, 4:14 AM EDT	Areal Flood Advisory	OKX	Bronx, Kings, New York, Queens, Richmond	2 hr
May 27, 6:49 AM EDT	Areal Flood Advisory	OKX	Union	56 min

Nearby

Coastal Flood Statements in New York, 2018 Every coastal flood 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.