Alert archive / New York / Flood Watches in 2017

Flood Watch 1, NWS New York, NY

January 22, 20178 counties in New York; 5 counties in New Jersey; Greater Bridgeport Planning Region, Connecticut

NWS New York, NY issued this flood watch at Jan 22, 2017, 3:49 PM EST for 8 counties in New York; 5 counties in New Jersey; Greater Bridgeport Planning Region, Connecticut. It took effect at Jan 23, 2017, 1:00 PM EST. It was in force for 11 hr.

The area

The counties it named.

The facts

Issued
Jan 22, 2017, 3:49 PM EST (20:49 UTC)
In effect from
Jan 23, 2017, 1:00 PM EST
Expired
Jan 24, 2017, 12:05 AM EST
In force
11 hr
Issued by
NWS New York, NY
Flood severity
None

Counties Greater Bridgeport Planning Region, CT, Bergen County, NJ, Essex County, NJ, Hudson County, NJ, Passaic County, NJ, Union County, NJ, Bronx County, NY, Kings County, NY, Nassau County, NY, New York County, NY, Queens County, NY, Richmond County, NY, Rockland County, NY, Westchester County, NY

The radar

The Brookhaven radar (KOKX), 92 km from the middle of the area, began a volume at 20:52 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, 8.8 hours before the alert went out and 92 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-pSkew-T log-p diagram, Brookhaven, NY at 12:00Z on 2017-01-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2017-01-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 13 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
1055 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
13 m²/s²
0-3 km storm-relative helicity
27 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 Jan 22, 1:04 PM EST, 2 hours 45 minutes earlier.

Area forecast discussion, Jan 22, 1:04 PM EST, 2 hours 45 minutes before
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Hazardous weather outlook, Jan 22, 11:34 AM EST, 4 hours 15 minutes before
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The office that day

Everything else NWS New York, NY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 22, 4:47 AM ESTHurricane Force Wind WarningOKX40 hr
Jan 22, 4:55 AM ESTHigh Wind WarningOKXBronx, Kings, Nassau, New York, Queens, Richmond and 2 more42 hr
Jan 22, 5:24 AM ESTCoastal Flood AdvisoryOKXBronx, Kings, Nassau, Queens, Richmond, Suffolk and 1 more27 hr
Jan 22, 11:23 AM ESTWind AdvisoryOKXBronx, Kings, Nassau, New York, Queens, Richmond and 3 more43 hr
Jan 22, 3:36 PM ESTWinter Weather AdvisoryOKXOrange, Putnam, Rockland, Westchester51 hr
Jan 22, 4:35 PM ESTCoastal Flood WarningOKXNassau, Richmond, Suffolk, Westchester30 hr
Jan 22, 4:35 PM ESTCoastal Flood AdvisoryOKXBronx, Kings, New York, Queens30 hr

Nearby

Flood Watches in New York, 2017Flood Watches in New Jersey, 2017Flood Watches in Connecticut, 2017Every flood watch in 2017

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.