Alert archive / New York / Flood Watches in 2011

Flood Watch 6, NWS New York, NY

April 16, 20119 counties in New York; 5 counties in New Jersey; 4 counties in Connecticut

NWS New York, NY issued this flood watch at Apr 16, 2011, 3:37 AM EDT for 9 counties in New York; 5 counties in New Jersey; 4 counties in Connecticut. It took effect at Apr 16, 2011, 6:00 PM EDT. It was in force for 10 hr.

The area

The counties it named.

The facts

Issued: Apr 16, 2011, 3:37 AM EDT (07:37 UTC)
In effect from: Apr 16, 2011, 6:00 PM EDT
Expired: Apr 17, 2011, 3:32 AM EDT
In force: 10 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, Southeastern Connecticut 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), 77 km from the middle of the area, began a volume at 07:42 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, 7.6 hours before the alert went out and 77 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: 1081 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: -97 m²/s²
0-3 km storm-relative helicity: -44 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 Apr 16, 2:23 AM EDT, 1 hour 14 minutes earlier.

Area forecast discussion, Apr 16, 2:23 AM EDT, 1 hour 14 minutes before

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Hazardous weather outlook, Apr 15, 9:42 PM EDT, 5 hours 55 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
Apr 16, 3:34 AM EDT	Wind Advisory	OKX	Bronx, Kings, Nassau, New York, Queens, Richmond and 2 more	24 hr
Apr 16, 4:09 AM EDT	Coastal Flood Warning	OKX	Bronx, Kings, Nassau, New York, Queens, Richmond and 2 more	20 hr
Apr 16, 5:24 PM EDT	Coastal Flood Advisory	OKX	Suffolk	7 hr
Apr 16, 5:24 PM EDT	High Surf Advisory	OKX	Kings, Nassau, Queens, Suffolk	19 hr
Apr 16, 7:27 PM EDT	Areal Flood Advisory	OKX	Bronx, Kings, Nassau, New York, Queens, Richmond and 2 more	78 min

Nearby

Flood Watches in New York, 2011 Flood Watches in New Jersey, 2011 Flood Watches in Connecticut, 2011 Every flood watch in 2011

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.