* WHAT. Heat index values as high as 100F expected. * WHERE. Niagara Frontier and the western Southern Tier * WHEN. From noon Tuesday to 8 PM EDT Thursday. * IMPACTS. Hot temperatures and high humidity may cause heat related illnesses to occur.

* WHAT. Heat index values of 100 to 104 expected. * WHERE. Portions of east central Ohio, northwest, southwest, and western Pennsylvania, and northern and the northern panhandle of West Virginia. * WHEN. Until 8 PM EDT Friday. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.

* WHAT. Heat index values as high as 100 expected. * WHERE. All of western New York. * WHEN. From noon Tuesday to 8 PM EDT Thursday. * IMPACTS. Hot temperatures and high humidity may cause heat related illnesses to occur.

* WHAT. Heat index values between 95 and 100 degrees in valley locations. * WHERE. Central Pennsylvania. * WHEN. From noon to 8 PM EDT Tuesday. * IMPACTS. The combination of heat and high humidity may cause heat illnesses. * ADDITIONAL DETAILS. The heat wave is expected to continue through next weekend with the hottest temperatures of the summer so far.

The New York State Department of Environmental Conservation at Albany has issued an Air Quality Health Advisory for Ground Level Ozone from 11 AM to 11 PM EDT Monday. Air quality levels in outdoor air are predicted to be greater than an Air Quality Index value of 105 for Ground Level Ozone. The Air Quality Index. or AQI. was created as an easy way to correlate levels of different pollutants to one scale. The higher the AQI value. the greater the health concern. When pollution levels are elevated. the New York State Department of Health recommends that individuals consider limiting strenuous outdoor physical activity to reduce the risk of adverse health effects. People who may be especially sensitive to the effects of elevated levels of pollutants include the very young and those with pre-existing respiratory problems such as asthma or heart disease. Those with symptoms should consider consulting their personal physician. For additional information, please visit the New York State Department of Environmental Conservation website at, https://on.ny.gov/nyaqi, or call the Air Quality Hotline at 1 800 5 3 5, 1 3 4 5.

The New York State Department of Environmental Conservation at Albany has issued an Air Quality Health Advisory for Ground Level Ozone from 11 AM to 11 PM EDT Monday. Air quality levels in outdoor air are predicted to be greater than an Air Quality Index value of 105 for Ground Level Ozone. The Air Quality Index. or AQI. was created as an easy way to correlate levels of different pollutants to one scale. The higher the AQI value. the greater the health concern. When pollution levels are elevated. the New York State Department of Health recommends that individuals consider limiting strenuous outdoor physical activity to reduce the risk of adverse health effects. People who may be especially sensitive to the effects of elevated levels of pollutants include the very young and those with pre-existing respiratory problems such as asthma or heart disease. Those with symptoms should consider consulting their personal physician. For additional information, please visit the New York State Department of Environmental Conservation website at, https://on.ny.gov/nyaqi, or call the Air Quality Hotline at 1 800 5 3 5, 1 3 4 5.