Alert archive / New York / Flood Watches in 2023

Flood Watch 13, NWS New York, NY

December 16, 20239 counties in New York; Greater Bridgeport Planning Region, Lower Connecticut River Valley Planning Region, Naugatuck Valley Planning Region, Connecticut; 5 counties in New Jersey

NWS New York, NY issued this flood watch at Dec 16, 2023, 3:16 PM EST for 9 counties in New York; Greater Bridgeport Planning Region, Lower Connecticut River Valley Planning Region, Naugatuck Valley Planning Region, Connecticut; 5 counties in New Jersey. It took effect at Dec 17, 2023, 5:00 PM EST. It was in force for 20 hr.

The area

The counties it named.

The facts

Issued: Dec 16, 2023, 3:16 PM EST (20:16 UTC)
In effect from: Dec 17, 2023, 5:00 PM EST
Expired: Dec 18, 2023, 1:28 PM EST
In force: 20 hr
Issued by: NWS New York, NY
Flood severity: None

Counties Greater Bridgeport Planning Region, CT, Lower Connecticut River Valley Planning Region, CT, Naugatuck Valley Planning Region, CT, Bergen County, NJ, Essex County, NJ, Hudson County, NJ, Passaic County, NJ, Union County, NJ, Bronx County, NY, Kings County, NY, New York County, NY, Orange County, NY, Putnam County, NY, Queens County, NY, Richmond County, NY, Rockland County, NY, Westchester County, NY

The radar

The Brookhaven radar (KOKX), 84 km from the middle of the area, began a volume at 20:17 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, 8.3 hours before the alert went out and 188 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 889 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: -78 m²/s²
0-3 km storm-relative helicity: -73 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flood watch 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 flood watch went out at Dec 16, 1:01 PM EST, 2 hours 15 minutes earlier.

Area forecast discussion, Dec 16, 1:01 PM EST, 2 hours 15 minutes before

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Hazardous weather outlook, Dec 16, 5:01 AM EST, 10 hours 15 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
Dec 16, 3:40 AM EST	High Wind Watch	OKX	Kings, Nassau, Queens, Suffolk	24 hr
Dec 16, 3:40 AM EST	Wind Advisory	OKX	Bronx, New York, Richmond, Westchester	55 hr
Dec 16, 3:44 AM EST	Storm Watch	OKX		24 hr
Dec 16, 2:50 PM EST	Coastal Flood Watch	OKX	Bronx, Kings, Nassau, Queens, Richmond, Suffolk	24 hr
Dec 16, 2:50 PM EST	Coastal Flood Warning	OKX	Kings, Nassau, Queens, Richmond, Suffolk, Westchester	53 hr
Dec 16, 6:59 PM EST	Small Craft Advisory	OKX		20 hr

Nearby

Flood Watches in New York, 2023 Flood Watches in New Jersey, 2023 Flood Watches in Connecticut, 2023 Every flood watch in 2023

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.