Alert archive / New York / Heat Advisories in 2017

Heat Advisory 2, NWS New York, NY

July 12, 20175 counties in New York; 4 counties in New Jersey

NWS New York, NY issued this heat advisory at Jul 12, 2017, 12:35 PM EDT for 5 counties in New York; 4 counties in New Jersey. It was in force for 29 hr.

The area

The counties it named.

The facts

Issued: Jul 12, 2017, 12:35 PM EDT (16:35 UTC)
Expired: Jul 13, 2017, 6:00 PM EDT
In force: 29 hr
Issued by: NWS New York, NY

Counties Bergen County, NJ, Essex County, NJ, Hudson County, NJ, Union County, NJ, Bronx County, NY, Kings County, NY, New York County, NY, Queens County, NY, Richmond County, NY

The radar

The Philadelphia radar (KDIX), 93 km from the middle of the area, began a volume at 16:41 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, 4.6 hours before the alert went out and 102 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: 529 J/kg
Mixed-layer CIN: -143 J/kg
Mixed-layer LCL: 1143 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 112 m²/s²
0-3 km storm-relative helicity: 145 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.1

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this heat advisory 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 heat advisory went out at Jul 12, 10:51 AM EDT, 1 hour 44 minutes earlier.

Area forecast discussion, Jul 12, 10:51 AM EDT, 1 hour 44 minutes before

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Hazardous weather outlook, Jul 12, 4:14 AM EDT, 8 hours 21 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 12, 3:39 PM EDT	Special Weather Statement	OKX		36 min
Jul 12, 4:26 PM EDT	Special Weather Statement	OKX		34 min
Jul 12, 5:38 PM EDT	Special Weather Statement	OKX		52 min
Jul 12, 6:14 PM EDT	Special Weather Statement	OKX		61 min
Jul 12, 6:29 PM EDT	Areal Flood Advisory	OKX	Southeastern Connecticut Planning Region	2 hr
Jul 12, 7:28 PM EDT	Special Weather Statement	OKX		62 min
Jul 12, 7:46 PM EDT	Areal Flood Advisory	OKX	Lower Connecticut River Valley Planning Region, Southeastern Connecticut Planning Region	119 min

Nearby

Heat Advisories in New York, 2017 Heat Advisories in New Jersey, 2017 Every heat advisory 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.