Alert archive / New Jersey / Heat Advisories in 2015

Heat Advisory 2, NWS New York, NY

July 20, 20155 counties in New Jersey

NWS New York, NY issued this heat advisory at Jul 20, 2015, 3:29 AM EDT for 5 counties in New Jersey. It was in force for 14 hr.

The area

The counties it named.

The facts

Issued: Jul 20, 2015, 3:29 AM EDT (07:29 UTC)
Expired: Jul 20, 2015, 5:57 PM EDT
In force: 14 hr
Issued by: NWS New York, NY

Counties Bergen County, NJ, Essex County, NJ, Hudson County, NJ, Passaic County, NJ, Union County, NJ

The radar

The Philadelphia radar (KDIX), 100 km from the middle of the area, began a volume at 07:29 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 00:00Z, 7.5 hours before the alert went out and 209 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: 553 J/kg
Mixed-layer CIN: -153 J/kg
Mixed-layer LCL: 1152 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 228 m²/s²
0-3 km storm-relative helicity: 282 m²/s²
Significant tornado parameter: -0.0
Supercell composite: -0.2

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 20, 1:40 AM EDT, 1 hour 49 minutes earlier.

Area forecast discussion, Jul 20, 1:40 AM EDT, 1 hour 49 minutes before

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Hazardous weather outlook, Jul 19, 11:52 PM EDT, 3 hours 37 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 20, 4:48 PM EDT	Special Weather Statement	OKX	Nassau	27 min
Jul 20, 5:24 PM EDT	Special Weather Statement	OKX	Nassau	36 min
Jul 20, 5:32 PM EDT	Special Weather Statement	OKX	Suffolk	28 min
Jul 20, 2:54 PM EDT	Special Weather Statement	OKX		51 min
Jul 20, 3:01 PM EDT	Severe Thunderstorm Warning	OKX	Southeastern Connecticut Planning Region	59 min

Nearby

Heat Advisories in New Jersey, 2015 Every heat advisory in 2015

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.