* WHAT. For the Heat Advisory, heat index values up to 100 expected. For the Excessive Heat Watch, dangerously hot conditions with heat index values up to 106 possible. * WHERE. Portions of northern Delaware, New Jersey, and southeast Pennsylvania. * WHEN. For the Heat Advisory, from 10 AM Tuesday to 6 AM EDT Wednesday. For the Excessive Heat Watch, from Wednesday morning through Saturday evening. * IMPACTS. Heat related illnesses increase significantly during extreme heat and high humidity events.

* WHAT. For the Heat Advisory, heat index values up to 98 expected. For the Excessive Heat Watch, dangerously hot conditions with heat index values up to 104 possible. * WHERE. Areas along the Interstate 95 corridor. * WHEN. For the Heat Advisory, from 10 AM Tuesday to 6 AM EDT Wednesday. For the Excessive Heat Watch, from Wednesday morning through Saturday evening. * IMPACTS. Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS. Excessive heat impacts may continue into Sunday.

* WHAT. South winds 10 to 20 kt with gusts up to 25 kt. * WHERE. Chesapeake Bay from Pooles Island MD to Smith Point VA, Tidal Potomac from Cobb Island MD to Smith Point VA, Eastern Bay, Choptank River to Cambridge MD and the Little Choptank River, and Tangier Sound and the inland waters surrounding Bloodsworth Island. * WHEN. Until 2 AM EDT Tuesday. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. South winds 10 to 15 kt with gusts up to 25 kt. * WHERE. Chesapeake Bay north of Pooles Island MD, Patapsco River including Baltimore Harbor, Chester River to Queenstown MD and Patuxent River to Broomes Island MD. * WHEN. Until midnight EDT tonight. * IMPACTS. Conditions will be hazardous to small craft.