* WHAT. Heat index values of 95-100 expected. * WHERE. Northern Westchester, Orange, Putnam, and Rockland Counties. * WHEN. From noon Tuesday to 8 PM EDT Wednesday. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.

* WHAT. Heat index values of 95-100 expected. * WHERE. Eastern Bergen, Eastern Essex, Eastern Passaic, Eastern Union, Hudson, Western Bergen, Western Essex, Western Passaic, and Western Union Counties. * WHEN. From noon Tuesday to 8 PM EDT Wednesday. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.

* WHAT. For the Heat Advisory, heat index values up to 98 expected. For the Excessive Heat Watch, dangerously hot conditions with heat index values of 100 to 105 possible. * WHERE. Portions of northern Delaware, central, northern, and southern New Jersey, and southeast Pennsylvania. * WHEN. For the Heat Advisory, from 10 AM Tuesday to 6 AM EDT Wednesday. For the Excessive Heat Watch, from Wednesday morning through Saturday evening. * IMPACTS. Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS. A prolonged period of excessive heat with high temperatures in the 90s is expected through this week. The heat is forecast to worsen as the week goes on, with it peaking late in the week and into the weekend. These early season heat events combined with the prolonged nature of it may cause an increase in heat related impacts such heat illnesses or on heat sensitive infrastructure.

* WHAT. For the Heat Advisory, heat index values up to 98 expected. For the Excessive Heat Watch, dangerously hot conditions with heat index values of 100 to 105 possible. * WHERE. Western Monmouth, Ocean, and Southeastern Burlington Counties. * WHEN. For the Heat Advisory, from 10 AM Tuesday to 6 AM EDT Wednesday. For the Excessive Heat Watch, from Wednesday morning through Saturday evening. * IMPACTS. Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS. A prolonged period of excessive heat with high temperatures in the 90s is expected through this week, with the hottest conditions inland from the coast due to a sea breeze. The heat away from the immediate coast is forecast to worsen as the week goes on, with it peaking late in the week and into the weekend. These early season heat events combined with the prolonged nature of it may cause an increase in heat related impacts such heat illnesses or on heat sensitive infrastructure.

* WHAT. For the Heat Advisory, heat index values up to 100 expected. For the Excessive Heat Watch, dangerously hot conditions with heat index values of 100 to 105 possible. * WHERE. Portions of northern and northwest New Jersey and east central, northeast, and southeast Pennsylvania. * WHEN. For the Heat Advisory, from 10 AM Tuesday to 6 AM EDT Wednesday. For the Excessive Heat Watch, from Wednesday morning through Saturday evening. * IMPACTS. Heat related illnesses increase significantly during extreme heat and high humidity events00. * ADDITIONAL DETAILS. A prolonged period of excessive heat with high temperatures in the 90s is expected through this week. The heat is forecast to worsen as the week goes on, with it peaking late in the week and into the weekend. These early season heat events combined with the prolonged nature of it may cause an increase in heat related impacts such heat illnesses or on heat sensitive infrastructure.