The New Jersey Department of Environmental Protection has issued a Code Orange Air Quality Action Day for Ground Level Ozone, from 11 AM to 11 PM EDT Sunday. 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

* WHAT. South winds 15 to 20 kt with gusts up to 25 kt and seas 3 to 5 ft. * WHERE. Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm and Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm. * WHEN. Until 8 PM EDT Saturday. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. Heat index values ranging from 100 to 104. * WHERE. Western Monmouth, Ocean, and Southeastern Burlington Counties. * WHEN. Until 8 PM EDT Saturday. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS. Very warm and humid conditions tonight will offer little relief from the heat.

* WHAT. Heat index values up to 101. * WHERE. Sussex and Warren Counties. * WHEN. Until 8 PM EDT Saturday. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS. Very warm and humid conditions tonight will offer little relief from the heat.

* WHAT. Heat index values up to 102. * WHERE. In New Jersey, Hunterdon County. In Pennsylvania, Berks, Lehigh, Northampton, Upper Bucks, Western Chester, and Western Montgomery Counties. * WHEN. Until 8 PM EDT Saturday. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS. Very warm and humid conditions tonight will offer little relief from the heat.

* WHAT. Heat index values up to 105. * WHERE. Atlantic, Cape May, and Cumberland Counties. * WHEN. Until 8 PM EDT Saturday. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS. Very warm and humid conditions tonight will offer little relief from the heat.

* WHAT. Heat index values ranging from 100 to 104. * WHERE. Portions of northern Delaware, central and southern New Jersey, and southeast Pennsylvania. * WHEN. Until 8 PM EDT Saturday. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS. Very warm and humid conditions tonight will offer little relief from the heat, especially in urbanized areas.

* WHAT. Heat index values ranging from 100 to 104. * WHERE. Middlesex and Somerset Counties. * WHEN. Until 8 PM EDT Saturday. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS. Very warm and humid conditions tonight will offer little relief from the heat.

* WHAT. Heat index values up to 109 expected. * WHERE. Portions of central, north central, northeast and northern Maryland, The District of Columbia and central, northern and northwest Virginia. * WHEN. Until 8 PM EDT this evening. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses to occur.