Alert archive / New York / Flash Flood Watches in 2013

Flash Flood Watch 4, NWS New York, NY

July 1, 20139 counties in New York; 5 counties in New Jersey; Greater Bridgeport Planning Region, Connecticut

NWS New York, NY issued this flash flood watch at Jul 1, 2013, 4:34 AM EDT for 9 counties in New York; 5 counties in New Jersey; Greater Bridgeport Planning Region, Connecticut. It was in force for 41 hr.

The area

The counties it named.

The facts

Issued
Jul 1, 2013, 4:34 AM EDT (08:34 UTC)
Expired
Jul 2, 2013, 9:41 PM EDT
In force
41 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, 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), 95 km from the middle of the area, began a volume at 08:36 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, 8.6 hours before the alert went out and 95 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 00:00Z on 2013-07-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 358 joules per kilogram.LCLLFCEL10008507005003002001001 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 00:00Z on 2013-07-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 47 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
358 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
465 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
47 m²/s²
0-3 km storm-relative helicity
66 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash 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 flash flood watch went out at Jul 1, 1:54 AM EDT, 2 hours 40 minutes earlier.

Area forecast discussion, Jul 1, 1:54 AM EDT, 2 hours 40 minutes before
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Hazardous weather outlook, Jun 30, 3:55 PM EDT, 12 hours 39 minutes before
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      <h1 id="headline">This service is currently unavailable.</h1>
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 1, 5:30 AM EDTAreal Flood AdvisoryOKXOrange60 min
Jul 1, 5:52 AM EDTFlash Flood WarningOKXOrange4 hr
Jul 1, 6:06 AM EDTMarine Dense Fog AdvisoryOKX30 hr
Jul 1, 7:07 AM EDTAreal Flood AdvisoryOKXOrange83 min
Jul 1, 8:35 AM EDTFlash Flood WarningOKXOrange, Rockland6 hr
Jul 1, 9:47 AM EDTAreal Flood AdvisoryOKXOrange118 min
Jul 1, 10:00 AM EDTFlash Flood WarningOKXOrange, Putnam2 hr
Jul 1, 10:00 AM EDTSevere Thunderstorm WarningOKXBronx, New York, Westchester30 min
Jul 1, 10:03 AM EDTFlash Flood WarningOKXBronx, Kings, New York, Queens, Richmond, Westchester6 hr
Jul 1, 11:47 AM EDTAreal Flood AdvisoryOKXKings, Nassau, Queens118 min
Jul 1, 12:26 PM EDTAreal Flood AdvisoryOKXSuffolk2 hr
Jul 1, 12:34 PM EDTAreal Flood AdvisoryOKXWestchester116 min
Jul 1, 1:35 PM EDTAreal Flood AdvisoryOKXOrange115 min
Jul 1, 4:30 PM EDTAreal Flood AdvisoryOKXOrange2 hr
Jun 30, 8:56 PM EDTAreal Flood AdvisoryOKXPassaic94 min
Jul 1, 9:05 AM EDTSpecial Weather StatementOKXEssex, Union40 min
Jul 1, 9:14 AM EDTTornado WarningOKXEssex, Union31 min
Jul 1, 10:31 AM EDTFlash Flood WarningOKXGreater Bridgeport Planning Region119 min
Jul 1, 11:08 AM EDTTornado WarningOKXGreater Bridgeport Planning Region22 min
Jul 1, 11:18 AM EDTFlash Flood WarningOKXGreater Bridgeport Planning Region117 min

Nearby

Flash Flood Watches in New York, 2013Flash Flood Watches in New Jersey, 2013Flash Flood Watches in Connecticut, 2013Every flash flood watch in 2013

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.