A system that moved through Southwest Ohio overnight dumped as much as 9 inches of snow in some parts of the region.

Many area schools and businesses closed.

The highest snow total today was 9.5 inches in Shelby County. Some of the slickest roadways were reported in Clark and Greene counties.

Parts of Warren County, including Springboro, had 8 inches on the ground.

Hamilton registered 6 inches of snow. Dayton measured an average of 5 inches.

Hundreds of schools and businesses announced delays and closures.

The Cincinnati/Northern Kentucky International Airport and Dayton International Airport listed flight delays and cancellations online. Dayton’s canceled flights were headed to cities such as Washington, D.C., Chicago, Atlanta, Dallas, New York, Minneapolis, Baltimore, Newark, N.J. and Detroit.

The back edge of the snow system moved through the area around 4 a.m. Snow tapered down in intensity. Several roads remained snowy and icy.

The afternoon is expected to be quiet and dry with a slight chance of a lingering flurry through the evening. Highs will be in the mid 30s.

Winter storm warnings and advisories for the region were canceled just after 9 a.m.

Dayton Street Maintenance crews started salting the roads sometime after 8:30 p.m. Tuesday, according to Jim Brinegar, division manager for the city’s Street Maintenance Department. He described the roads as being snow-covered and slippery.

As of 6:45 a.m. there were nearly 50 city trucks out on the main thoroughfares, salting and plowing. The city has a policy that street crews will not go to residential areas unless the snow is more than 4 inches.

“We sprayed salt with a brine and beet juice solution to make it more effective,” Brinegar said. “It helps the salt melt faster.”

The city averages about 12,000 tons of salt annually. Prior to this winter storm, the city had used approximately 7,500 tons of salt and Brinegar believes there is plenty of salt available for any upcoming storms.

The city’s 2013 budget was $325,000 for salt and $250,000 in overtime.

Street crews are monitoring the weather to see when they will be able to go back to normal staffing.

As of 6 a.m., snow had tapered down. There were still a few flurries falling in some areas. Cincinnati State Technical and Community College, which has a Middletown branch, announced it is closed today.

The National Museum of the U.S. Air Force at Wright-Patterson Air Force Base also announced it is closed today.

Just after 5 a.m., the Ohio State Highway Patrol staff and other law enforcement officials reported lots of vehicle slide-offs.

Around 4 a.m., the Middletown Police Department tweeted this: “Please use extreme caution, city roads are very hazardous, we have responded to numerous calls of wires down and crashes.”