New Jersey, 2011

Excessive Heat in New Jersey, July 21 to 23, 2011

July 21 to 23, 2011 · NWS OKX · 8 events in 8 counties and zones

An oppressive hot humid air mass produced excessive heat that resulted in day time temperatures 100 to 105 degrees with night time lows in the 80s. Heat indices peaked between 115 and 120 degrees during record heat on Friday afternoon, July 22.

Where it happened

Every event with a place to put it; 8 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
8

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS OKX wrote it up.

An oppressive hot humid air mass produced excessive heat that resulted in day time temperatures 100 to 105 degrees with night time lows in the 80s.

Heat indices peaked between 115 and 120 degrees during record heat on Friday afternoon, July 22.

What forecasters said that day

The local office's own words before the first event, 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 the first event at Jul 21, 11:38 AM EST, 22 minutes earlier.

Area forecast discussion, Jul 21, 11:38 AM EST, 22 minutes before
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The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

8 excessive heat. Local standard time, as filed.

Excessive Heat, Eastern Union

When
July 21, 12:00 PM EST to July 23, 11:00 PM EST
Where
Eastern Union forecast zone
Reported by
Official NWS Observations
Coordinates
40.660, -74.309 (the zone’s center; the record gives no point)

Excessive heat between 100 and 105 degrees, along with heat indices in excess of 105 degrees occurred for a couple of days. The heat index was as high as 116 degrees at 3 PM and 5 PM at Newark International Airport (KEWR) on July 22nd.

Excessive Heat, Eastern Essex

When
July 21, 12:00 PM EST to July 23, 11:00 PM EST
Where
Eastern Essex forecast zone
Reported by
Official NWS Observations
Coordinates
40.787, -74.247 (the zone’s center; the record gives no point)

Excessive heat between 100 and 105 degrees, along with heat indices in excess of 105 degrees occurred for a couple of days. The heat index was as high as 116 degrees at 3 PM and 5 PM at Newark International Airport (KEWR) on July 22nd.

Excessive Heat, Western Essex

When
July 21, 1:00 PM EST to July 23, 10:00 PM EST
Where
Western Essex forecast zone
Reported by
Official NWS Observations
Coordinates
40.787, -74.247 (the zone’s center; the record gives no point)

Excessive heat between 100 and 105 degrees, along with heat indices in excess of 105 degrees occurred for a couple of days. The heat index was as high as 116 degrees at 3 PM and 5 PM at Newark International Airport (KEWR), and 113 degrees at 2 PM at Caldwell Airport (KCDW) on July 22nd.

Excessive Heat, Western Union

When
July 21, 1:00 PM EST to July 23, 10:00 PM EST
Where
Western Union forecast zone
Reported by
Official NWS Observations
Coordinates
40.660, -74.309 (the zone’s center; the record gives no point)

Excessive heat between 100 and 105 degrees, along with heat indices in excess of 105 degrees occurred for a couple of days. The heat index was as high as 116 degrees at 3 PM and 5 PM at Newark International Airport (KEWR), and 113 degrees at 2 PM at Caldwell Airport (KCDW) on July 22nd.

Excessive Heat, Eastern Passaic

When
July 21, 1:00 PM EST to July 23, 10:00 PM EST
Where
Eastern Passaic forecast zone
Reported by
Official NWS Observations
Coordinates
41.034, -74.300 (the zone’s center; the record gives no point)

Excessive heat between 100 and 105 degrees, along with heat indices in excess of 105 degrees occurred for a couple of days. The heat index was as high as 113 degrees at 2 PM at Caldwell Airport (KCDW) on July 22nd.

Excessive Heat, Eastern Bergen

When
July 22, 8:00 AM EST to July 23, 11:00 PM EST
Where
Eastern Bergen forecast zone
Reported by
Official NWS Observations
Coordinates
40.960, -74.074 (the zone’s center; the record gives no point)

Excessive heat between 100 and 105 degrees, along with heat indices in excess of 105 degrees occurred for a couple of days. The heat index was as high as 111 degrees at 3 PM at Teterboro Airport (KTEB) on July 22nd.

Excessive Heat, Western Passaic

When
July 22, 8:00 AM EST to July 23, 10:00 PM EST
Where
Western Passaic forecast zone
Reported by
Official NWS Observations
Coordinates
41.034, -74.300 (the zone’s center; the record gives no point)

Excessive heat between 100 and 105 degrees, along with heat indices in excess of 105 degrees occurred for a couple of days. The heat index was as high as 116 degrees at 3 PM and 5 PM at Newark International Airport (KEWR), and 113 degrees at 2 PM at Caldwell Airport (KCDW) on July 22nd.

Excessive Heat, Western Bergen

When
July 22, 8:00 AM EST to July 23, 10:00 PM EST
Where
Western Bergen forecast zone
Reported by
Official NWS Observations
Coordinates
40.960, -74.074 (the zone’s center; the record gives no point)

Excessive heat between 100 and 105 degrees, along with heat indices in excess of 105 degrees occurred for a couple of days. The heat index was as high as 111 degrees at 3 PM at Teterboro Airport (KTEB) on July 22nd.

What these are

Excessive Heat
Heat at or above the local excessive heat warning criteria, or heat that caused deaths.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in New Jersey in 2011Every state in 2011This day in weather historyWarnings in New Jersey, July 2011

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-30. Each event’s entry at NCEI: 315160, 315191, 315197, 315198, 315200, 315193, 315195, 315196.