Heat in New Jersey, July 25 to 27, 2005

Name: Heat in New Jersey, July 25 to 27, 2005
Start: 2005-07-25T09:00
End: 2005-07-27T18:00
Location: New Jersey

July 25 to 27, 2005 · NWS PHI · 15 events in 15 counties and zones

Where it happened

Every event with a place to put it; 15 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: 15

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.

The most hottest and humid air mass of the summer so far occupied New Jersey from the 25th through the 27th. This air mass had as its origin the desert southwest in the United States and a ridge of high pressure aloft brought this air mass east with it through the rest of the country. The hottest and most humid day was the 27th. This was the hottest day of the year so far for most places and the highest temperatures seen in many areas since August of 2002. The combination of high temperatures and humidity levels pushed afternoon heat indices to between 105 and 110 degrees in central and southern New Jersey on the 27th. Hospitals saw an increase in the number of patients complaining about dizziness, allergies and breathing difficulties. Elevated ozone levels exacerbated the symptoms. This time it affected more than just the elderly. The PJM Interconnection recorded a world record for electricity usage on the 26th: 135,000 megawatts. The PJM coordinates the movement of electricity in New Jersey and twelve other states from North Carolina to Illinois. On the 27th, PJM lowered voltage to certain customers by five percent due to the stress on the high voltage lines. Locally Public Service Electric and Gas (PSE&G) (10,780 megawatts), Atlantic City Electric (2,740 megawatts), Jersey Central Power and Light (JCP&L) and the Vineland Municipal Electric Utility (Cumberland County) all set new usage records. The extra demand for electricity did cause a strain on the system and about 3,000 JCP&L customers to lose power over the 26th and 27th in Monmouth County.Hospitals saw even bakers and construction workers suffering from heat related symptoms. The New Jersey Farm Bureau encouraged farm owners and field workers to change their schedules and avoid being outdoors or doing strenuous work during the hottest part of the day, wear hats and stay hydrated. The Hunterdon County Office of the Aging made sure all their clients had air conditioning. In Mercer County, the elderly were encouraged to go to air-conditioned libraries. In Burlington County, the elderly were encouraged to go to the air-conditioned malls. A cold front abruptly ended the hot weather as it moved through the state late in the afternoon and early in the evening on the 27th. The highest temperatures included 101 degrees at the Newark International Airport (Essex County), 99 degrees at the Atlantic City International Airport, Hamilton (Mercer County) and Chatham (Morris County), 98 degrees at the Philadelphia International Airport, Sandy Hook (Monmouth County), Millville (Cumberland County), Somerville (Somerset County) and Somerdale (Camden County), 97 degrees in Atsion (Burlington County), Trenton (Mercer County) and New Brunswick (Middlesex County), 96 degrees in Flemington (Hunterdon County) and Boonton (Morris County) and 95 degrees in Cape May (Cape May County) and Wertsville (Hunterdon County).

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 Jul 25, 2:55 AM EST, 6 hours 5 minutes earlier.

Area forecast discussion, Jul 25, 2:55 AM EST, 6 hours 5 minutes before

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Hazardous weather outlook, Jul 25, 3:33 AM EST, 5 hours 27 minutes before

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In the hours before

Special weather statement, Jul 25, 3:58 AM EST, 5 hours 2 minutes before

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Special weather statement, Jul 25, 6:30 AM EST, 2 hours 30 minutes before

PAZ054-251215-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
730 AM EDT MON JUL 25 2005

...STRONG THUNDERSTORM MOVING INTO THE AREA...

AT 730 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM IN LUZERNE COUNTY MOVING SOUTHEAST AT 30 MPH.
BREIF GUSTY WINDS...SMALL HAIL AND HEAVY RAIN CAN BE EXPECTED AS
THIS STORM MOVES THROUGH CARBON COUNTY.

WN

Special weather statement, Jul 25, 8:20 AM EST, 40 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
920 AM EDT MON JUL 25 2005

NJZ001-007>010-012-015-PAZ054-055-060>062-067>071-251600-
BERKS PA-BUCKS PA-CARBON PA-CHESTER PA-DELAWARE PA-HUNTERDON NJ-
LEHIGH PA-MERCER NJ-MIDDLESEX NJ-MONROE PA-MONTGOMERY PA-MORRIS NJ-
NORTHAMPTON PA-PHILADELPHIA PA-SOMERSET NJ-SUSSEX NJ-WARREN NJ-
INCLUDING THE CITIES OF...ALLENTOWN...BETHLEHEM...NEW BRUNSWICK...
PERTH AMBOY...PHILADELPHIA...READING AND TRENTON
920 AM EDT MON JUL 25 2005

AN AREA OF SHOWERS AND STRONG THUNDERSTORMS IS MOVING SOUTHEAST
ACROSS THE REGION THIS MORNING. THESE STORMS ARE PRODUCING VERY HEAVY
DOWNPOURS AND INTENSE CLOUD TO GROUND LIGHTNING.  TWO PEOPLE WERE
STRUCK BY LIGHTNING EARLIER THIS MORNING IN HICKORY RUN STATE PARK IN
CARBON COUNTY.

IF THUNDERSTORMS APPROACH YOUR AREA...SEEK SHELTER INSIDE A STURDY
BUILDING. STAY TUNED TO NOAA WEATHER RADIO, OR YOUR LOCAL MEDIA
OUTLET FOR FURTHER UPDATES.

FOR ADDITIONAL WEATHER INFORMATION, VISIT US ON THE INTERNET AT
HTTP://WEATHER.GOV/ER/PHI (ALL LOWERCASE).

AMC

Special weather statement, Jul 25, 8:51 AM EST, 9 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

15 heat. Local standard time, as filed.

Heat, Camden

When: July 25, 9:00 AM EST to July 27, 6:00 PM EST
Where: Camden forecast zone
Reported by: AWOS,ASOS,MESONET,ETC
Coordinates: 39.804, -74.960 (the zone’s center; the record gives no point)

Heat, Cumberland

When: July 25, 9:00 AM EST to July 27, 6:00 PM EST
Where: Cumberland forecast zone
Reported by: AWOS,ASOS,MESONET,ETC
Coordinates: 39.328, -75.129 (the zone’s center; the record gives no point)

Heat, Gloucester

When: July 25, 9:00 AM EST to July 27, 6:00 PM EST
Where: Gloucester forecast zone
Reported by: AWOS,ASOS,MESONET,ETC
Coordinates: 39.717, -75.142 (the zone’s center; the record gives no point)

Heat, Hunterdon

When: July 25, 9:00 AM EST to July 27, 6:00 PM EST
Where: Hunterdon forecast zone
Reported by: AWOS,ASOS,MESONET,ETC
Coordinates: 40.567, -74.912 (the zone’s center; the record gives no point)

Heat, Mercer

When: July 25, 9:00 AM EST to July 27, 6:00 PM EST
Where: Mercer forecast zone
Reported by: AWOS,ASOS,MESONET,ETC
Coordinates: 40.283, -74.702 (the zone’s center; the record gives no point)

Heat, Middlesex

When: July 25, 9:00 AM EST to July 27, 6:00 PM EST
Where: Middlesex forecast zone
Reported by: AWOS,ASOS,MESONET,ETC
Coordinates: 40.440, -74.409 (the zone’s center; the record gives no point)

Heat, Morris

When: July 25, 9:00 AM EST to July 27, 6:00 PM EST
Where: Morris forecast zone
Reported by: AWOS,ASOS,MESONET,ETC
Coordinates: 40.862, -74.544 (the zone’s center; the record gives no point)

Heat, Northwestern Burlington

When: July 25, 9:00 AM EST to July 27, 6:00 PM EST
Where: Northwestern Burlington forecast zone
Reported by: AWOS,ASOS,MESONET,ETC
Coordinates: 39.878, -74.668 (the zone’s center; the record gives no point)

Heat, Salem

When: July 25, 9:00 AM EST to July 27, 6:00 PM EST
Where: Salem forecast zone
Reported by: AWOS,ASOS,MESONET,ETC
Coordinates: 39.577, -75.358 (the zone’s center; the record gives no point)

Heat, Somerset

When: July 25, 9:00 AM EST to July 27, 6:00 PM EST
Where: Somerset forecast zone
Reported by: AWOS,ASOS,MESONET,ETC
Coordinates: 40.564, -74.616 (the zone’s center; the record gives no point)

Heat, Southeastern Burlington

When: July 25, 9:00 AM EST to July 27, 6:00 PM EST
Where: Southeastern Burlington forecast zone
Reported by: AWOS,ASOS,MESONET,ETC
Coordinates: 39.878, -74.668 (the zone’s center; the record gives no point)

Heat, Western Atlantic

When: July 25, 9:00 AM EST to July 27, 6:00 PM EST
Where: Western Atlantic forecast zone
Reported by: AWOS,ASOS,MESONET,ETC
Coordinates: 39.469, -74.634 (the zone’s center; the record gives no point)

Heat, Western Cape May

When: July 25, 9:00 AM EST to July 27, 6:00 PM EST
Where: Western Cape May forecast zone
Reported by: AWOS,ASOS,MESONET,ETC
Coordinates: 39.085, -74.850 (the zone’s center; the record gives no point)

Heat, Western Monmouth

When: July 25, 9:00 AM EST to July 27, 6:00 PM EST
Where: Western Monmouth forecast zone
Reported by: AWOS,ASOS,MESONET,ETC
Coordinates: 40.288, -74.158 (the zone’s center; the record gives no point)

Heat, Western Ocean

When: July 25, 9:00 AM EST to July 27, 6:00 PM EST
Where: Western Ocean forecast zone
Reported by: AWOS,ASOS,MESONET,ETC
Coordinates: 39.866, -74.250 (the zone’s center; the record gives no point)

What these are

Heat: Heat below excessive heat criteria that still caused deaths, injuries or significant impacts.

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

The same day elsewhere

Every storm in New Jersey in 2005 Every state in 2005 This day in weather history Warnings in New Jersey, July 2005

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: 5468323, 5468324, 5468325, 5468326, 5468327, 5468328, 5468329, 5468330, 5468331, 5468332, 5468333, 5468334, 5468335, 5468336, 5468337.