New Jersey, 2023

Dense Fog in New Jersey, February 17, 2023

February 17, 2023 · NWS PHI · 3 events in 3 counties and zones

A slow moving warm front advected warm moist air across the region late on February 16th and early on February 17th. This resulted in areas dense fog across portions of central New Jersey.

Where it happened

Every event with a place to put it; 3 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

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The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
3

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 PHI wrote it up.

A slow moving warm front advected warm moist air across the region late on February 16th and early on February 17th. This resulted in areas dense fog across portions of central New Jersey.

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 Philadelphia/Mount Holly wrote its last area forecast discussion before the first event at Feb 16, 6:59 PM EST, 5 hours 1 minute earlier.

Area forecast discussion, Feb 16, 6:59 PM EST, 5 hours 1 minute before
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Hazardous weather outlook, Feb 16, 5:01 PM EST, 6 hours 59 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

3 dense fog. Local standard time, as filed.

Dense Fog, Mercer

When
February 17, 12:00 AM EST to 9:00 AM EST
Where
Mercer forecast zone
Reported by
ASOS
Coordinates
40.283, -74.702 (the zone’s center; the record gives no point)

Several hours of dense fog was observed at Trenton Mercer Airport.

Dense Fog, Somerset

When
February 17, 12:00 AM EST to 9:00 AM EST
Where
Somerset forecast zone
Reported by
ASOS
Coordinates
40.564, -74.616 (the zone’s center; the record gives no point)

Several hours of dense fog was observed at Somerset Airport.

Dense Fog, Hunterdon

When
February 17, 12:00 AM EST to 9:00 AM EST
Where
Hunterdon forecast zone
Reported by
ASOS
Coordinates
40.567, -74.912 (the zone’s center; the record gives no point)

Several hours of dense fog was observed at Trenton Mercer Airport, Lehigh Valley International Airport and Somerset Airport.

What these are

Dense Fog
Fog reducing visibility to a quarter mile or less, filed where it caused accidents or disruption.

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

The same day elsewhere

More

Every storm in New Jersey in 2023Every state in 2023This day in weather historyWarnings in New Jersey, February 2023

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 2026-10-01. Each event’s entry at NCEI: 1079507, 1079508, 1079509.