A blizzard is tracking east across South Dakota, still creating travel problems even though Interstate 90 was reopened for travel.

Now, I-29 from Brookings north is closed. High winds are blowing snow sideways and causing near whiteout conditions in many locations.

Temperatures are hovering mostly in the single digits below zero across the state.

Weather officials warned that overnight lows of could dip down to 20-30 degrees below zero in the west tonight and early tomorrow and that wind chill readings would approach 40 degrees below zero in some sections.

Wind gusts of 30-40 mph are buffeting most of the state.

Snow totals include 8 inches at Roscoe in northeast South Dakota, 6 inches to 8 inches with 3-foot drifts in the Brookings area, 5.4 inches near Deadwood, 5 inches at Castlewood and 4 inches at Milbank, Howard, Clear Lake, Pierre and Watertown.

Four-foot drifts were reported near Selby.

A blizzard warning remains in effect for western, central and most of eastern South Dakota through late tonight.

The extreme western portion of South Dakota reported clear skies by mid-afternoon, but the weather service issued a wind chill warning for the Black Hills and southwestern South Dakota.