* WHAT. Heat index values up to 108 expected. * WHERE. In Maryland, Dorchester and Wicomico Counties. In North Carolina, Bertie and Hertford Counties. In Virginia, Cumberland, Eastern Louisa, Fluvanna, Prince Edward, and Western Louisa 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 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. From noon today to 8 PM EDT this evening. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses to occur.

* 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.

* WHAT. Heat index values up to 108 expected. * WHERE. In Maryland, Dorchester, Inland Worcester, Somerset, and Wicomico Counties. In Virginia, Cumberland, Eastern Louisa, Fluvanna, Prince Edward, and Western Louisa Counties. * WHEN. Until 8 PM EDT this evening. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.

* WHAT. South winds 10 to 20 kt with gusts up to 25 kt and seas 3 to 6 ft expected. * WHERE. Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 nm and Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm. * WHEN. From 2 PM this afternoon to 6 PM EDT Saturday. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. South winds 10 to 20 kt with gusts up to 25 kt and seas 3 to 5 ft expected. * WHERE. Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm and Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm. * WHEN. From 2 PM this afternoon to 6 PM EDT Saturday. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. Heat index values ranging from 105 to 108 degrees expected. * WHERE. In Delaware, Kent and Inland Sussex Counties. In Maryland, Caroline, Kent MD, Queen Annes, and Talbot Counties. * WHEN. From 10 AM this morning to 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 degrees expected. * WHERE. Portions of northern Delaware, central and southern New Jersey, and southeast Pennsylvania. * WHEN. From 10 AM this morning to 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.