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

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

At 652 PM EDT, Doppler radar was tracking strong thunderstorms along a line extending from 15 miles east of Meadville to 10 miles northwest of Oil City to 19 miles northeast of Franklin. Movement was northeast at 20 mph. HAZARD. Wind gusts of 50 to 55 mph and half inch 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. Enterprise, Garland, Grand Valley, Chapman State Park, and Tidioute.

* WHAT. Heat index values of 100 to 104 degrees are expected at times this week with variability each day due to clouds and scattered showers and storms. * WHERE. Portions of north central, northeast, and northwest Ohio and northwest Pennsylvania. * WHEN. Until 8 PM EDT Friday. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses. The prolonged nature of the heat may increase heat stress with time.

* WHAT. Heat index values up to 100. * WHERE. Central Pennsylvania. * WHEN. Until 8 PM EDT Friday. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.

* WHAT. Heat index values ranging from 100 to 105 degrees. * 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 Tuesday. Air quality levels in outdoor air are predicted to be greater than an Air Quality Index value of 101 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.

An Air Quality Advisory for ground level ozone has been issued by the Northeast Ohio Areawide Coordinating Agency for Ashtabula, Cuyahoga, Geauga, Lake, Lorain, Medina, Portage and Summit Counties. The advisory is from midnight tonight to midnight Tuesday night. Air quality levels will be unhealthy for sensitive groups during this period. If you are in the sensitive groups category of children, the elderly and those with breathing difficulties, please monitor your outdoor activity and check air quality readings at airnow.gov. Additionally, sign-up at enviroflash.info for text alerts regarding air quality. To help our region reduce air pollution: * Drive less: bike, walk, use transit, work from home, combine trips * Visit gohiocommute.com/noaca - Find a smarter way to travel! * Don't idle - Turn off your engine * Refill your tank after sunset * Wait to mow the lawn

An Air Quality Advisory for ground level ozone has been issued by the Northeast Ohio Areawide Coordinating Agency for Ashtabula, Cuyahoga, Geauga, Lake, Lorain, Medina, Portage and Summit Counties. The advisory is from midnight tonight to midnight Tuesday night. Air quality levels will be unhealthy for sensitive groups during this period. If you are in the sensitive groups category of children, the elderly and those with breathing difficulties, please monitor your outdoor activity and check air quality readings at airnow.gov. Additionally, sign-up at enviroflash.info for text alerts regarding air quality. To help our region reduce air pollution: * Drive less: bike, walk, use transit, work from home, combine trips * Visit gohiocommute.com/noaca - Find a smarter way to travel! * Don't idle - Turn off your engine * Refill your tank after sunset * Wait to mow the lawn

SVRCLE The National Weather Service in Cleveland has issued a * Severe Thunderstorm Warning for. Eastern Crawford County in northwestern Pennsylvania. * Until 730 PM EDT. * At 635 PM EDT, severe thunderstorms were located along a line extending from near Meadville to near Sugarcreek, moving northeast at 25 mph. HAZARD. 60 mph wind gusts and penny size hail. SOURCE. Radar indicated. IMPACT. Expect damage to trees and power lines. * Locations impacted include. Meadville, Titusville, Riceville, Guys Mills, Lincolnville, Canadohta Lake, Saegertown, Hydetown, Blooming Valley, Townville, and Spartansburg.

At 700 PM EDT, severe thunderstorms were located along a line extending from near Guys Mills to near Titusville, moving east at 20 mph. HAZARD. 60 mph wind gusts. SOURCE. Radar indicated. IMPACT. Expect damage to trees and power lines. Locations impacted include. Titusville, Riceville, Lincolnville, Canadohta Lake, Hydetown, Blooming Valley, Townville, and Spartansburg.

The storms which prompted the warning have weakened below severe limits, and no longer pose an immediate threat to life or property. Therefore, the warning will be allowed to expire.

SVRCTP The National Weather Service in State College PA has issued a * Severe Thunderstorm Warning for. Southern Warren County in north central Pennsylvania. * Until 815 PM EDT. * At 712 PM EDT, severe thunderstorms were located along a line extending from Enterprise to near Tionesta to near Marienville, moving northeast at 15 mph. HAZARD. Two inch hail and 60 mph wind gusts. SOURCE. Radar indicated. IMPACT. People and animals outdoors will be injured. Expect hail damage to roofs, siding, windows, and vehicles. Expect wind damage to roofs, siding, and trees. * Locations impacted include. Sheffield, Garland, Grand Valley, Chapman State Park, Ludlow, Tidioute, and Clarendon.