Alert archive / New York / Areal Flood Warnings in 2011

Areal Flood Warning 4, NWS New York, NY

March 7, 2011Orange County, Rockland County, New York; Bergen County, Passaic County, New Jersey

NWS New York, NY issued this areal flood warning at Mar 7, 2011, 1:32 PM EST for Orange County, Rockland County, New York; Bergen County, Passaic County, New Jersey. It was in force for 24 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Mar 7, 2011, 1:32 PM EST (18:32 UTC)
Expired: Mar 8, 2011, 1:30 PM EST
In force: 24 hr
Issued by: NWS New York, NY
Area: Storm-based polygon
Flood severity: None

Counties Bergen County, NJ, Passaic County, NJ, Orange County, NY, Rockland County, NY

The radar

The Brookhaven radar (KOKX), 114 km from the middle of the area, began a volume at 18:33 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 12:00Z, 6.5 hours before the alert went out and 114 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: 473 m above ground
0-6 km bulk shear: 79 kt
0-1 km storm-relative helicity: -45 m²/s²
0-3 km storm-relative helicity: 77 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 areal flood warning 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 areal flood warning went out at Mar 7, 12:46 PM EST, 46 minutes earlier.

Area forecast discussion, Mar 7, 12:46 PM EST, 46 minutes before

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Hazardous weather outlook, Mar 7, 10:57 AM EST, 2 hours 35 minutes before

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In the hours before

Local storm report, Mar 7, 11:23 AM EST, 2 hours 9 minutes before

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Local storm report, Mar 7, 11:30 AM EST, 2 hours 2 minutes before

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Local storm report, Mar 7, 11:32 AM EST, 2 hours before

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Local storm report, Mar 7, 11:47 AM EST, 1 hour 45 minutes before

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Local storm report, Mar 7, 11:51 AM EST, 1 hour 41 minutes before

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Local storm report, Mar 7, 11:58 AM EST, 1 hour 34 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
Mar 6, 7:57 PM EST	Wind Advisory	OKX	Bronx, Kings, Nassau, New York, Queens, Suffolk	7 hr
Mar 6, 8:20 PM EST	Areal Flood Advisory	OKX	Kings, New York, Queens, Richmond	4 hr
Mar 6, 8:51 PM EST	Areal Flood Advisory	OKX	Bronx, New York	4 hr
Mar 6, 9:12 PM EST	Areal Flood Warning	OKX	Orange, Putnam, Rockland, Westchester	16 hr
Mar 6, 9:57 PM EST	Areal Flood Advisory	OKX	Nassau, Suffolk	4 hr
Mar 6, 10:59 PM EST	River Flood Warning	OKX	Orange, Ulster	16 hr
Mar 6, 9:01 PM EST	River Flood Warning	OKX	Bergen, Passaic	65 hr
Mar 6, 11:26 PM EST	River Flood Warning	OKX	Bergen	16 hr
Mar 6, 7:56 PM EST	Areal Flood Warning	OKX	Greater Bridgeport Planning Region, Naugatuck Valley Planning Region	39 hr
Mar 6, 10:11 PM EST	Areal Flood Advisory	OKX	Lower Connecticut River Valley Planning Region	4 hr
Mar 7, 2:18 AM EST	Areal Flood Advisory	OKX	Lower Connecticut River Valley Planning Region, Southeastern Connecticut Planning Region	3 hr
Mar 7, 2:49 AM EST	River Flood Warning	OKX	Naugatuck Valley Planning Region	8 hr
Mar 7, 7:34 AM EST	River Flood Warning	OKX	Southeastern Connecticut Planning Region	5 hr

Nearby

Areal Flood Warnings in New York, 2011 Areal Flood Warnings in New Jersey, 2011 Every areal flood warning 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.