Alert archive / New York / Excessive Heat Warnings in 2013

Excessive Heat Warning 2, NWS New York, NY

July 18, 201311 counties in New York; 5 counties in New Jersey; Greater Bridgeport Planning Region, Lower Connecticut River Valley Planning Region, Naugatuck Valley Planning Region, Connecticut

NWS New York, NY issued this excessive heat warning at Jul 18, 2013, 3:20 PM EDT for 11 counties in New York; 5 counties in New Jersey; Greater Bridgeport Planning Region, Lower Connecticut River Valley Planning Region, Naugatuck Valley Planning Region, Connecticut. It took effect at Jul 19, 2013, 11:00 AM EDT. It was in force for 9 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: Jul 18, 2013, 3:20 PM EDT (19:20 UTC)
In effect from: Jul 19, 2013, 11:00 AM EDT
Expired: Jul 19, 2013, 8:00 PM EDT
In force: 9 hr
Issued by: NWS New York, NY

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, Nassau County, NY, New York County, NY, Orange County, NY, Putnam County, NY, Queens County, NY, Richmond County, NY, Rockland County, NY, Suffolk County, NY, Westchester County, NY

The radar

The Brookhaven radar (KOKX), 78 km from the middle of the area, began a volume at 19:20 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, 7.3 hours before the alert went out and 190 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: 1229 J/kg
Mixed-layer CIN: -48 J/kg
Mixed-layer LCL: 1150 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 23 m²/s²
0-3 km storm-relative helicity: 74 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.9

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this excessive heat 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 excessive heat warning went out at Jul 18, 1:58 PM EDT, 1 hour 22 minutes earlier.

Area forecast discussion, Jul 18, 1:58 PM EDT, 1 hour 22 minutes before

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Hazardous weather outlook, Jul 18, 3:06 PM EDT, 14 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
Jul 18, 10:32 AM EDT	Heat Advisory	OKX	Bronx, Kings, Nassau, New York, Putnam, Queens and 3 more	33 hr
Jul 18, 3:23 PM EDT	Small Craft Advisory	OKX		67 hr

Nearby

Excessive Heat Warnings in New York, 2013 Excessive Heat Warnings in New Jersey, 2013 Excessive Heat Warnings in Connecticut, 2013 Every excessive heat warning 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.