The latest round of snow started falling in central Indiana at about 4 a.m. Thursday—just in time for the morning rush hour. A winter weather advisory remains in effect until early Friday. Drivers should look out for slippery roads, reduced visibility and hazardous travel conditions. Accumulation is expected to average 2 inches to 4 inches across the northern half of the Indianapolis area and 3 inches to 6 inches farther south. The heaviest snowfall is expected Thursday afternoon. Winds could cause blowing and drifting snow.