* WHAT...Dangerously hot conditions with heat index values up to 110 possible.
* WHERE...Portions of south central, southwest, and western Maine and central, northern, and southern New Hampshire.
* WHEN...From Wednesday afternoon through Friday evening.
* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.
* ADDITIONAL DETAILS...Overnight low temperatures will only fall into the 70s, resulting in accumulated heat stress.