New Jersey Heat Advisory | Effective 05/18/2026 11:49
* WHAT...Heat index values in the mid to upper 90s expected.
* WHERE...Eastern Bergen, Eastern Essex, Eastern Passaic, Eastern
Union, Hudson, Western Bergen, Western Essex, Western Passaic, and
Western Union Counties.
* WHEN...From 11 AM Tuesday to 8 PM EDT Wednesday.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
A Heat Advisory is issued when the combination of heat and humidity
is expected to make it feel like it is 95 to 99 degrees for two or