* WHAT…Heat index values up to 104.
* WHERE…Columbia, Juniata, Mifflin, Montour, Northumberland,
Schuylkill, Snyder, Southern Lycoming, and Union Counties.
* WHEN…Until 8 PM EDT Wednesday.
* IMPACTS…Heat related illnesses increase significantly during
extreme heat and high humidity events. Heat impacts are likely in
most health systems, heat-sensitive industries and infrastructure.
* ADDITIONAL DETAILS…The highest heat index will occur in the
urban valley locations. Temperatures in the 70s overnight will
provide little if any relief.