* WHAT. Heat index values up to 100 expected. * WHERE. Portions of southwest and western Maine and central, northern, and southern New Hampshire. * WHEN. From noon today to 8 PM EDT this evening. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.

* WHAT. Heat index values up to 103. * WHERE. Portions of northern Connecticut, eastern and southeastern Massachusetts, and northern Rhode Island. * WHEN. Until 8 PM EDT Wednesday. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.

* WHAT. Heat index values up to 98. * WHERE. In Massachusetts, Northern Worcester MA, Southern Bristol MA, and Southern Plymouth MA Counties. In Rhode Island, Newport RI and Washington RI Counties. * WHEN. Until 8 PM EDT Tuesday. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.

* WHAT. Heat index values up to 101. * WHERE. Southern Worcester MA, Central Middlesex MA, Northern Middlesex MA, Southeast Middlesex MA, Suffolk MA, Eastern Essex MA, Western Essex MA, Eastern Franklin MA, Eastern Hampden MA, and Eastern Hampshire MA Counties. * WHEN. Until 8 PM EDT Tuesday. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.

* WHAT. Heat index values up to 99. * WHERE. In Massachusetts, Southern Bristol and Southern Plymouth Counties. In Rhode Island, Newport and Washington Counties. * WHEN. Until 8 PM EDT Tuesday. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.

* WHAT. Heat index values up to 101. * WHERE. Portions of northern Connecticut, eastern and southeastern Massachusetts, and northern Rhode Island. * WHEN. Until 8 PM EDT Wednesday. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.

* WHAT. Heat index values up to 100. * WHERE. Portions of central, eastern, northeastern, and western Massachusetts. * WHEN. Until 8 PM EDT Wednesday. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.

* WHAT. Heat index values up to 95 expected. * WHERE. In Maine, Interior Waldo, Kennebec, and Coastal Cumberland Counties. In New Hampshire, Cheshire County. * WHEN. From noon to 8 PM EDT Tuesday. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.

* WHAT. For the first Heat Advisory, heat index values up to 100. For the second Heat Advisory, heat index values up to 100 expected. * WHERE. Portions of southwest and western Maine and central, northern, and southern New Hampshire. * WHEN. For the first Heat Advisory, until 8 PM EDT this evening. For the second Heat Advisory, from noon to 8 PM EDT Tuesday. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.

SVRBOX The National Weather Service in Boston/Norton has issued a * Severe Thunderstorm Warning for. Western Worcester County in central Massachusetts. Southeastern Hampshire County in western Massachusetts. Southeastern Franklin County in western Massachusetts. Northeastern Hampden County in western Massachusetts. * Until 400 PM EDT. * At 317 PM EDT, a severe thunderstorm was located over Belchertown, or 7 miles southeast of Amherst, moving northeast at 15 mph. HAZARD. 60 mph wind gusts and nickel size hail. SOURCE. Radar indicated. IMPACT. Expect damage to roofs, siding, and trees. * Locations impacted include. Ludlow, Belchertown, Ware, Granby, Hardwick, Pelham, Petersham, and New Salem.