Weather forecasters said Sunday that accumulating snow might stay south of Fishers, but the track of the system remained uncertain.

By Monday morning, that uncertainty was gone.

Fishers received between 1 and 2 inches of snow overnight, prompting Hamilton Southeastern Schools to operate on a two-hour delay. The National Weather Service has issued a Winter Weather Advisory for the area through 9 a.m.

Forecasters warn that untreated roads, bridges and overpasses are likely to become slick. Hazardous travel conditions could affect the Monday morning commute.

Motorists are urged to allow extra time, reduce speed and use caution while traveling.