WATCH: Oklahoma Winter Storm Update (11:22 a.m.)

A strong winter storm arrived in Oklahoma on Wednesday morning.

The storm is bringing heavy rain and snow to parts of the state.

Snow is expected to hit northwest Oklahoma that hardest during this storm.

A winter storm warning is in effect until 12 p.m. Thursday for Alfalfa, Blaine, Custer, Dewey, Ellis, Garfield, Harper, Major, Roger Mills, Woods and Woodward counties.

The best chances for snow in Oklahoma City will be from Wednesday night into Thursday morning.

Stay with News 9 for the latest forecast.