* WHAT...For the first Heat Advisory, heat index values between 100 and 104. For the second Heat Advisory, heat index values up to 100 degrees expected.
* WHERE...A portion of northern Indiana.
* WHEN...For the first Heat Advisory, until 8 PM EDT this evening. For the second Heat Advisory, from noon to 8 PM EDT Thursday.
* IMPACTS...Hot temperatures and high humidity may cause heat illnesses.