* WHAT. South winds 10 to 15 kt with gusts up to 25 kt and seas 2 to 4 feet expected. * WHERE. Portions of Massachusetts coastal waters and Rhode Island coastal waters. * WHEN. From noon today to 8 PM EDT this evening. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. For the Heat Advisory, heat index values up to 100 expected. For the Excessive Heat Watch, dangerously hot conditions with heat index values up to 105 possible. * WHERE. Western and Central Hillsborough, Merrimack, Eastern Hillsborough, and Interior Rockingham Counties. * WHEN. For the Heat Advisory, from noon to 8 PM EDT Tuesday. For the Excessive Heat Watch, from Wednesday afternoon through Thursday evening. * IMPACTS. Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS. Warm overnight low temperatures in the 70s will result in greater cumulative heat stress.

* WHAT. Heat index values up to 95 expected. * WHERE. Sullivan, Northern Carroll, Southern Grafton, and Cheshire Counties. * WHEN. From noon to 8 PM EDT Tuesday. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.

* WHAT. For the Heat Advisory, heat index values up to 95 expected. For the Excessive Heat Watch, dangerously hot conditions with heat index values up to 105 possible. * WHERE. Portions of southwest and western Maine and central, northern, and southern New Hampshire. * WHEN. For the Heat Advisory, from noon to 8 PM EDT Tuesday. For the Excessive Heat Watch, from Wednesday afternoon through Thursday evening. * IMPACTS. Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS. Warm overnight low temperatures in the 70s will result in greater cumulative heat stress.

* WHAT. Heat index values up to 100 expected. * WHERE. Sullivan, Northern Carroll, Southern Grafton, and Cheshire Counties. * WHEN. From noon to 8 PM EDT Tuesday. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS. Warm overnight low temperatures in the 70s will result in great cumulative heat stress.

* WHAT. South winds 10 to 15 kt with gusts up to 25 kt and seas 2 to 4 feet expected. * WHERE. Portions of Massachusetts coastal waters and Rhode Island coastal waters. * WHEN. Until 8 PM EDT this evening. * IMPACTS. Conditions will be hazardous to small craft.