* WHAT. Heat index values up to 97. * WHERE. In Connecticut, Hartford CT, Tolland CT, and Windham CT Counties. In Massachusetts, Eastern Hampden MA and Eastern Hampshire MA Counties. * WHEN. Until 7 PM EDT Sunday. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.

* WHAT. South winds 10 to 15 kt with gusts up to 25 kt and waves 1 to 2 feet expected. * WHERE. Boston Harbor. * WHEN. From noon to 8 PM EDT Sunday. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. South winds 10 to 20 kt with gusts up to 25 kt and waves 1 to 2 feet expected. * WHERE. Boston Harbor. * WHEN. From noon to 8 PM EDT Sunday. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. Heat index values up to 99. * WHERE. In Connecticut, Hartford CT, Tolland CT, and Windham CT Counties. In Massachusetts, Eastern Hampden MA and Eastern Hampshire MA Counties. * WHEN. Until 7 PM EDT Sunday. * 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. Northern Windham County in northern Connecticut. Northern Tolland County in northern Connecticut. Northeastern Hartford County in northern Connecticut. Southern Worcester County in central Massachusetts. Southeastern Hampshire County in western Massachusetts. South central Middlesex County in northeastern Massachusetts. Southeastern Franklin County in western Massachusetts. Southeastern Hampden County in western Massachusetts. * Until 415 PM EDT. * At 321 PM EDT, severe thunderstorms were located along a line extending from Oakham to near Ludlow to Enfield, moving east at 30 mph. HAZARD. 60 mph wind gusts and penny size hail. SOURCE. Radar indicated. IMPACT. Expect damage to roofs, siding, and trees. * Locations impacted include. Worcester, Springfield, Framingham, Chicopee, Enfield, Marlborough, Shrewsbury, Agawam, West Springfield, Ludlow, Westborough, Grafton, Holden, Webster, Southbridge, Ashland, Auburn, Longmeadow, Suffield, and East Longmeadow.

At 334 PM EDT, severe thunderstorms were located along a line extending from near Rutland to near Palmer to Somers, moving east at 30 mph. HAZARD. 60 mph wind gusts and penny size hail. SOURCE. Radar indicated. IMPACT. Expect damage to roofs, siding, and trees. Locations impacted include. Worcester, Framingham, Enfield, Marlborough, Shrewsbury, Westborough, Grafton, Holden, Webster, Southbridge, Ashland, Auburn, East Longmeadow, Northbridge, Ellington, Hopkinton, Belchertown, Wilbraham, Northborough, and Oxford.