The combination of heat and humidity will lead heat index values to reach the mid to upper 90s this afternoon. Heat index of 100 degrees will be possible over some spots across the lowlands this afternoon. If going outside, drink plenty of fluids, stay out of the sun, and check in with relatives and neighbors. Wear lightweight and loose fitting clothing. Take action when you see symptoms of heat exhaustion and heat stroke.

At 713 PM EDT, strong thunderstorms were located along a line extending from near West Liberty to near Fort Recovery, moving south at 25 mph. HAZARD. Wind gusts up to 50 mph, half inch hail, frequent cloud-to-ground lightning, and very heavy rain. SOURCE. Radar indicated. IMPACT. Gusty winds could knock down tree limbs and blow around unsecured objects. Hail may cause minor damage to vegetation. Lightning can cause serious injury or death. Visibility will be poor and hydroplaning is possible. Locations impacted include. Springfield, Troy, Sidney, Piqua, Greenville, Urbana, Tipp City, New Carlisle, West Milton, Northridge, Versailles, Covington, Arcanum, St. Paris, Newport, Bradford, Union City, Mechanicsburg, Pleasant Hill, and Ansonia. This includes the following Interstates. I-70 in Ohio between mile markers 64 and 70. I-75 in Ohio between mile markers 69 and 91. If outdoors, consider seeking shelter inside a sturdy building. Motorists should slow down and use extra caution. When thunder roars, go indoors! Do not stay in the open or seek shelter under trees when lightning threatens. To report hazardous weather conditions, go to our website at weather.gov/iln and submit your report via social media, when you can do so safely.

SVRILN The National Weather Service in Wilmington has issued a * Severe Thunderstorm Warning for. Shelby County in west central Ohio. Northern Champaign County in west central Ohio. Logan County in west central Ohio. Southwestern Union County in central Ohio. * Until 745 PM EDT. * At 653 PM EDT, a severe thunderstorm was located over Bellefontaine, moving southeast at 20 mph. HAZARD. 60 mph wind gusts and penny size hail. SOURCE. Radar indicated. IMPACT. Expect damage to trees and power lines. * Locations impacted include. Marysville, Sidney, Bellefontaine, West Liberty, Anna, North Lewisburg, Jackson Center, Russells Point, De Graff, Botkins, Lakeview, Belle Center, West Mansfield, Chippewa Park, Hardin, Northwood, Milford Center, Quincy, Rushsylvania, and Huntsville. This includes I-75 in Ohio between mile markers 91 and 105.

At 703 PM EDT, a severe thunderstorm was located near Bellefontaine, moving southeast at 20 mph. HAZARD. 60 mph wind gusts and penny size hail. SOURCE. Radar indicated. IMPACT. Expect damage to trees and power lines. Locations impacted include. Marysville, Sidney, Bellefontaine, West Liberty, Anna, North Lewisburg, Jackson Center, Russells Point, De Graff, Botkins, Lakeview, Belle Center, West Mansfield, Chippewa Park, Hardin, Northwood, Milford Center, Quincy, Rushsylvania, and Huntsville. This includes I-75 in Ohio between mile markers 91 and 105.

At 729 PM EDT, a severe thunderstorm was located over North Lewisburg, moving southeast at 20 mph. HAZARD. 60 mph wind gusts and penny size hail. SOURCE. Radar indicated. IMPACT. Expect damage to trees and power lines. Locations impacted include. Marysville, Sidney, Bellefontaine, West Liberty, North Lewisburg, De Graff, Hardin, Milford Center, Quincy, Port Jefferson, Woodstock, Valley Hi, Zanesfield, Pottersburg, Pemberton, East Liberty, Logansville, Pickrelltown, Lake Loramie State Park, and Middleburg. This includes I-75 in Ohio between mile markers 91 and 98.