* WHAT...Dangerously hot conditions with heat index values 98 to 115 expected. The worst of this heat and humidity will be Thursday and Friday.
* WHERE...All of southern New England except the Cape and Islands.
* WHEN...From 10 AM this morning to 8 PM EDT Saturday.
* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.
* ADDITIONAL DETAILS...This is a prolonged and dangerous heatwave with little relief at night.