* WHAT. For the Heat Advisory, heat index values up to 97 expected. For the Excessive Heat Watch, dangerously hot conditions with heat index values up to 103 possible. * WHERE. Southern Poconos, Lehigh Valley, Berks County and Western portions of Chester, Montgomery, and Bucks 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. Excessive heat impacts may continue into Sunday.

At 706 PM EDT, Doppler radar was tracking strong thunderstorms along a line extending from Southport to near Lawrenceville to near Leonard Harrison State Park. Movement was east at 30 mph. HAZARD. Wind gusts up to 50 mph. SOURCE. Radar indicated. IMPACT. Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include. Chemung, Sayre, Athens, Ridgebury, Canton, Troy, Litchfield, Springfield, South Waverly, and Sylvania.

* WHAT. For the Heat Advisory, heat index values up to 97 expected. For the Excessive Heat Watch, dangerously hot conditions with heat index values up to 103 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 events. * ADDITIONAL DETAILS. Excessive heat impacts may continue into Sunday.

The New Jersey Department of Environmental Protection has issued a code orange air quality alert Tuesday for Sussex and Warren Counties. A code orange air quality alert means that air pollution concentrations within the region may become unhealthy for sensitive groups. Sensitive groups include children. people suffering from asthma. heart disease or other lung diseases. and the elderly. The effects of air pollution can be minimized by avoiding strenuous activity or exercise outdoors. For more information on ground-level ozone and fine particles. visit http://www.state.nj.us/dep/

* WHAT. Heat index values up to 100 expected. * WHERE. Central Pennsylvania. * WHEN. From noon Tuesday to 8 PM EDT Thursday. * IMPACTS. Hot temperatures and high humidity may cause heat-related illnesses. * ADDITIONAL DETAILS. The heat wave is expected to continue into the weekend with the hottest temperatures of the summer so far. The longevity of the heat wave has not been experienced in decades during the month of June.