* WHAT. Heat index values in the upper 90s and lower 100s. * 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.

At 233 PM EDT, Doppler radar was tracking a strong thunderstorm 10 miles northwest of Cadiz, moving northwest at 10 mph. HAZARD. Wind gusts up to 50 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. Carrollton, Dennison, Scio, Jewett, Bowerston, Sherrodsville, Leesville, Deersville, Leesville Lake Park, and Tappan Lake.

* WHAT. Prolonged dangerous hot conditions are likely. Heat index values ranging from 105 to 110 degrees are expected. Little relief will be observed at night with temperatures ranging from 70 to 75 degrees. * WHERE. Beaver, Fayette, Washington, Allegheny, Butler, and Westmoreland Counties. * WHEN. Until 8 PM EDT Friday. * IMPACTS. Heat related illnesses increase significantly during extreme heat and high humidity events.

* 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.

* 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.

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

SVRPBZ The National Weather Service in Pittsburgh has issued a * Severe Thunderstorm Warning for. Northwestern Harrison County in east central Ohio. Southwestern Carroll County in east central Ohio. East central Tuscarawas County in east central Ohio. * Until 330 PM EDT. * At 240 PM EDT, a severe thunderstorm was located 10 miles east of Dennison, or 11 miles east of Uhrichsville, moving northwest at 10 mph. HAZARD. 60 mph wind gusts and penny size hail. SOURCE. Radar indicated. IMPACT. Expect damage to trees and power lines, resulting in some power outages. * Locations impacted include. Carrollton, Scio, Jewett, Bowerston, Barnhill, Dellroy, Sherrodsville, Roswell, Leesville, Atwood Lake, Leesville Lake Park, and Tappan Lake.