A winter storm warning has been issued for the South Willamette Valley on Friday, Dec. 6.

Snow accumulations of up to four inches are expected between 2 a.m. and 4 p.m.

Roads are also expected to be icy.

Any information on closures for the University of Oregon will be reported on the front of www.uoregon.edu as early as 5:30 a.m., according to Joe Mosley, assistant director of strategic communications.