* WHAT. Heat index values up to 106 expected. * WHERE. In Maryland, Dorchester, Inland Worcester, Somerset, and Wicomico Counties. In Virginia, Northampton and Accomack Counties. * WHEN. From 11 AM this morning to 8 PM EDT this evening. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.

* WHAT. Heat index values ranging from 102 to 107 degrees expected. * WHERE. In Delaware, Kent and Inland Sussex Counties. In Maryland, Caroline, Kent MD, Queen Annes, and Talbot Counties. In New Jersey, Atlantic, Cumberland, and Salem Counties. * WHEN. From 10 AM to 8 PM EDT Friday. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.

* WHAT. Heat index values ranging from 98 to 103 degrees expected. * WHERE. Portions of northern Delaware, central, northern, and southern New Jersey, and southeast Pennsylvania. * WHEN. From 10 AM this morning to 8 PM EDT Friday. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS. Limited relief from the heat overnight, with muggy conditions and low temperatures in the mid 70s.

The New Jersey Department of Environmental Protection has issued a Code Orange Air Quality Action Day for Ground Level Ozone and Fine Particulates, from 11 AM to 11 PM EDT Thursday. Sensitive individuals, including the very young, the elderly, and persons with respiratory diseases such as asthma, should avoid strenuous activities during the afternoon and early evening hours. Hot and humid conditions are expected on Thursday, along with ample sunshine and south-southwesterly winds. As a result, ozone levels will be able to reach the Unhealthy for Sensitive Groups (USG) category along the I-95 corridor and the northern New Jersey coast. An Air Quality Advisory means that air quality within the region may approach or exceed unhealthy standards. For more information on current and forecast concentrations of ground-level ozone and fine particulates, visit www.airnow.gov or www.state.nj.us/dep/airmon/ or call the New Jersey Bureau of Air Monitoring at 609-292-0138.