* 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.

At 612 PM EDT, Doppler radar was tracking a strong thunderstorm near Allegany State Park, moving east at 15 mph. HAZARD. Wind gusts up to 50 mph and pea size hail. SOURCE. Radar indicated. IMPACT. Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include. Bradford, Allegany State Park, Lewis Run, and University Of Pittsburgh - Bradford.

At 542 PM EDT, Doppler radar was tracking a strong thunderstorm over Marienville, moving east northeast at 25 mph. HAZARD. Wind gusts up to 50 mph and pea size hail. SOURCE. Radar indicated. IMPACT. Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include. St. Marys, Ridgway, Johnsonburg, Wilcox, James City, and East Branch Dam.

At 538 PM EDT, Doppler radar was tracking a strong thunderstorm near Weston Mills, or near Olean, moving east at 30 mph. HAZARD. Wind gusts up to 40 mph and half inch hail. SOURCE. Radar indicated. IMPACT. Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. Locations impacted include. Wellsville, Whitesville, Weston Mills, Bolivar, Portville, Alma, Richburg, West Clarksville, Stannards, Paynesville, Little Genesee, and Ceres.

* 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 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.

* 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.

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.