HUNTERDON EMERGENCY MANAGEMENT Excessive Heat today (Thursday) and Friday


A Heat Advisory is in effect for Hunterdon County from noon until 7PM today (Thursday, 7/20/2017). Please visit our website for summer weather safety information:

Good Thursday Morning Partners,

An Excessive Heat Warning remains in effect for the Wilmington – Philadelphia – Trenton corridor from noon today (Thursday)  through 8 PM Friday.

In addition, a Heat Advisory has been posted from noon today until 700 PM this evening for most other areas of the NWS Mount Holly County Warning Area, except the southern Poconos, far northwestern New Jersey, and the shore.

Hazardous Weather: High temperatures are forecast to be in the mid-90s both today (Thursday) and Friday.

In combination with high humidity, heat indices are expected to reach or exceed 105 in the Wilmington – Philadelphia – Trenton corridor, and between 100 and 105 most other places (except southern Poconos, far northwest New Jersey, and the shore).

Night time low temperatures are forecast to be in the low to mid-70s.

Temperatures may be a bit lower on Saturday and Sunday with expected cloud cover and shower/thunderstorm activity.

Impacts: These heat index values can cause heat related stress particularly among at-risk populations. Those especially vulnerable include the elderly, children, those with pre-existing conditions, particularly if they live in or near urban centers without air conditioning. In addition, for those working in direct sunlight, heat index values at or above 90 degrees may lead to heat stress.

Confidence on occurrence: High.

If you have any questions, please feel free to contact our office, or  visit our website at  The next briefing will be issued by 5:00 PM on Thursday, July 20, 2017, if conditions warrant.

-NWS Mount Holly


The National Weather Service in Mount Holly has issued a Heat
Advisory, which is in effect from noon today to 7 PM EDT this

* HEAT INDEX VALUES…From 100 to 105 in southeast Pennsylvania
and central New Jersey and 103 to 108 in Delaware, the Eastern
Shore of Maryland, and southern New Jersey.

* TIMING…This afternoon into early this evening.

* IMPACTS…The heat and humidity may cause heat stress during
outdoor exertion or extended exposure.


A Heat Advisory means that a period of hot temperatures is
expected. The combination of hot temperatures and high humidity
will combine to create a situation in which heat illnesses are
possible. Drink plenty of fluids…stay in an air-conditioned
room…stay out of the sun…and check up on relatives and

Take extra precautions…if you work or spend time outside. When
possible…reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear light weight and loose fitting clothing when possible
and drink plenty of water.

To reduce risk during outdoor work…the occupational safety and
health administration recommends scheduling frequent rest breaks
in shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency…call 9 1 1.

Brayden J. Fahey, Coordinator
Hunterdon County Dept. of Public Safety & Health Services
Emergency Management Division