At 211 PM EDT, Doppler radar was tracking a strong thunderstorm near Vermilion, moving east at 20 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. Lorain, Elyria, Vermilion, Amherst, Northern Milan, Sheffield Lake, Oberlin, Sheffield, South Amherst, Berlin Heights, and Birmingham.

At 147 PM EDT, Doppler radar was tracking strong thunderstorms along a line extending from 6 miles south of Wakeman to near New London to near Shelby. Movement was east at 20 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 hail damage to vegetation is possible. Locations impacted include. Grafton, Wellington, New London, Savannah, Polk, Sullivan, Lagrange, Penfield, Pittsfield, Greenwich, Spencer, Bailey Lakes, Rochester, Nova, and Valley City.

* 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 of 100 to 104 degrees are expected at times this week with variability each day due to clouds and scattered showers and storms, especially early in the week. * 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.

* WHAT. Heat index values up to 101 are expected. * WHERE. Portions of east central and southeast Indiana, northeast and northern Kentucky, and central, south central, southwest, and west central Ohio. * WHEN. Until 8 PM Friday. * IMPACTS. The combination of excessive heat due to temperatures in the 90s and high humidity will increase the threat of heat illnesses.

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 Monday 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 Monday 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

The storm which prompted the warning has weakened below severe limits, and no longer poses an immediate threat to life or property. Therefore, the warning will be allowed to expire. However, heavy rain and minor flooding is still possible with this thunderstorm.

SVRCLE The National Weather Service in Cleveland has issued a * Severe Thunderstorm Warning for. Stark County in northeastern Ohio. Southeastern Wayne County in northeastern Ohio. * Until 300 PM EDT. * At 203 PM EDT, a severe thunderstorm was located over Massillon, or 9 miles west of Canton, moving east at 25 mph. HAZARD. 60 mph wind gusts and quarter size hail. SOURCE. Radar indicated. IMPACT. Minor damage to vehicles is possible. Expect damage to trees and power lines. * Locations impacted include. Canton, Massillon, Green, Alliance, North Canton, Louisville, Minerva, Hartville, Brewster, Navarre, Dalton, Waynesburg, East Sparta, Wilmot, Mount Eaton, Canal Fulton, East Canton, Beach City, Bolivar, and Meyers Lake.