* WHAT. Heat index values up to 102. * 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 this evening. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.

* WHAT. Large breaking waves of 4 to 9 feet expected in the surf zone. * WHERE. Ocean exposed beaches along the south coast, Cape and Islands. * WHEN. From noon today to 7 PM EDT Monday. * IMPACTS. Dangerous swimming and surfing conditions and localized beach erosion.

* WHAT. Heat index values up to 94. * WHERE. Northern Middlesex, Northern New London, Southern Middlesex, and Southern New Haven Counties. * WHEN. Until 8 PM EDT this evening. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.

* WHAT. Southwest winds 10 to 20 kt with gusts up to 30 kt and waves 3 to 5 feet. * WHERE. Narragansett Bay. * WHEN. Until 9 AM EDT Monday. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. South winds 15 to 20 kt with gusts up to 25 kt and waves around 2 feet. * WHERE. Boston Harbor. * WHEN. Until 11 PM EDT this evening. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. Large breaking waves of 4 to 10 feet in the surf zone. * WHERE. Washington, Southern Bristol MA, Southern Plymouth MA, Barnstable MA, Dukes MA, Nantucket MA, and Newport RI Counties. * WHEN. Until 7 PM EDT Monday. * IMPACTS. Dangerous swimming and surfing conditions and localized beach erosion.

* WHAT. Heat index values up to 96. * 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 this evening. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.

THE NATIONAL WEATHER SERVICE HAS ISSUED TORNADO WATCH 448 IN EFFECT UNTIL 8 PM EDT THIS EVENING FOR THE FOLLOWING AREAS IN MASSACHUSETTS THIS WATCH INCLUDES 6 COUNTIES IN CENTRAL MASSACHUSETTS WORCESTER IN EASTERN MASSACHUSETTS MIDDLESEX IN NORTHEASTERN MASSACHUSETTS ESSEX IN WESTERN MASSACHUSETTS FRANKLIN HAMPDEN HAMPSHIRE THIS INCLUDES THE CITIES OF FITCHBURG, FRAMINGHAM, GLOUCESTER, GREENFIELD, LAWRENCE, LOWELL, NORTHAMPTON, SPRINGFIELD, AND WORCESTER.

THE NATIONAL WEATHER SERVICE HAS EXTENDED TORNADO WATCH 448 TO INCLUDE THE FOLLOWING AREAS UNTIL 8 PM EDT THIS EVENING IN CONNECTICUT THIS WATCH INCLUDES 3 COUNTIES IN NORTHERN CONNECTICUT HARTFORD TOLLAND WINDHAM IN MASSACHUSETTS THIS WATCH INCLUDES 2 COUNTIES IN EASTERN MASSACHUSETTS NORFOLK SUFFOLK IN RHODE ISLAND THIS WATCH INCLUDES 1 COUNTY IN NORTHERN RHODE ISLAND PROVIDENCE THIS INCLUDES THE CITIES OF BOSTON, FOXBOROUGH, HARTFORD, PROVIDENCE, PUTNAM, QUINCY, UNION, VERNON, AND WILLIMANTIC.

TORNADO WATCH 448 REMAINS VALID UNTIL 8 PM EDT THIS EVENING FOR THE FOLLOWING AREAS IN MASSACHUSETTS THIS WATCH INCLUDES 6 COUNTIES IN CENTRAL MASSACHUSETTS WORCESTER IN EASTERN MASSACHUSETTS MIDDLESEX IN NORTHEASTERN MASSACHUSETTS ESSEX IN WESTERN MASSACHUSETTS FRANKLIN HAMPDEN HAMPSHIRE THIS INCLUDES THE CITIES OF FITCHBURG, FRAMINGHAM, GLOUCESTER, GREENFIELD, LAWRENCE, LOWELL, NORTHAMPTON, SPRINGFIELD, AND WORCESTER.