Edmond is a city in Oklahoma County, Oklahoma, United States, and a part of the Oklahoma City metropolitan area in the central part of the state. As of the 2010 census, the population was 81,405, making it the sixth largest city in the state of Oklahoma. The city limits are located on the northern border of Oklahoma City. Two major highways connect Edmond to downtown Oklahoma City: U.S. Route 77 (the Broadway Extension), which runs through the center of Edmond, and Interstate 35, which runs along the eastern side. Public transportation is provided by Citylink Edmond bus service. In 2011, Edmond was #1 on CNBC's "10 Perfect Suburbs" list. Edmond was listed as one of the "Top 100 Places to Live in 2007" by Relocate America. Edmond was selected the most outstanding community in its class for five years in a row by the State Chamber of Commerce and State Industrial Development Department. Edmond has a humid subtropical climate with frequent variations in weather during part of the year and consistently hot summers. Prolonged and severe droughts often lead to wildfires and heavy rainfall often leads to flash flooding and flooding. Consistent winds, usually from the south or south-southeast during the summer, help temper the hotter weather. Consistent northerly winds during the winter can intensify cold periods. Severe ice storms and snowstorms happen sporadically during the winter. The city is located in Tornado Alley and is subject to frequent and severe tornadoes and hailstorms. The Oklahoma City metropolitan area is one of the most tornado-prone major cities in the world.