Alert archive / New York / Coastal Flood Statements in 2020

Coastal Flood Statement 40, NWS New York, NY

August 18, 2020Nassau County, Queens County, New York

NWS New York, NY issued this coastal flood statement at Aug 18, 2020, 3:57 PM EDT for Nassau County, Queens County, New York. It took effect at Aug 18, 2020, 7:00 PM EDT. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued: Aug 18, 2020, 3:57 PM EDT (19:57 UTC)
In effect from: Aug 18, 2020, 7:00 PM EDT
Expired: Aug 18, 2020, 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 19:57 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, 8.0 hours before the alert went out and 222 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: 5 J/kg
Mixed-layer CIN: -86 J/kg
Mixed-layer LCL: 987 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 43 m²/s²
0-3 km storm-relative helicity: 67 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

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 Aug 18, 2:52 PM EDT, 1 hour 5 minutes earlier.

Area forecast discussion, Aug 18, 2:52 PM EDT, 1 hour 5 minutes before

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Hazardous weather outlook, Aug 18, 3:54 PM EDT, 3 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
Aug 17, 9:44 PM EDT	Special Weather Statement	OKX	Nassau	61 min
Aug 17, 10:18 PM EDT	Special Weather Statement	OKX	Suffolk	42 min
Aug 17, 11:08 PM EDT	Special Weather Statement	OKX	Suffolk	52 min
Aug 18, 12:49 AM EDT	Special Weather Statement	OKX	Orange	41 min
Aug 18, 1:46 AM EDT	Special Weather Statement	OKX	Orange	29 min
Aug 18, 2:17 AM EDT	Special Weather Statement	OKX	Rockland, Westchester	58 min
Aug 18, 2:33 AM EDT	Special Weather Statement	OKX	Putnam	57 min
Aug 18, 3:06 AM EDT	Special Weather Statement	OKX	Suffolk	54 min
Aug 18, 4:39 AM EDT	Special Weather Statement	OKX	Suffolk	51 min
Aug 18, 5:03 AM EDT	Areal Flood Advisory	OKX	Suffolk	47 min
Aug 18, 12:22 PM EDT	Rip Current Statement	OKX	Suffolk	9 hr
Aug 18, 1:59 AM EDT	Special Weather Statement	OKX		61 min
Aug 18, 2:25 AM EDT	Special Weather Statement	OKX		65 min
Aug 18, 2:47 AM EDT	Special Weather Statement	OKX		58 min
Aug 18, 3:18 AM EDT	Special Weather Statement	OKX		57 min

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.