A significant winter storm is currently moving into Iowa from the west, bringing heavy snow that is expected to continue through Saturday night. Forecasts indicate total snow accumulations of 8 to 12 inches across much of the state, with the possibility of localized bands producing even higher amounts. As the storm progresses, mixed precipitation types may develop, particularly in southern and southwestern Iowa, where rain could briefly mix with snow, potentially reducing overall snow totals in those areas.
Travel conditions are anticipated to deteriorate starting this evening, with the most severe impacts expected on Saturday. Heavy snowfall, combined with wind gusts increasing to 30 mph late Saturday, will create challenging travel conditions, making roads difficult to navigate and potentially impassable at times. Snowfall rates could reach approximately 1 inch per hour, particularly during the peak of the storm, which is forecasted to occur between 5 AM and 5 PM on Saturday.
The nature of the snow will change as the storm progresses. Initially, snow in southern Iowa will be wetter due to the mixing with rain. However, as colder air moves in Saturday afternoon, the snow will become drier and fluffier. This shift in snow type, coupled with the increasing winds, may lead to significant blowing and drifting snow, especially in northwest Iowa where the snow is fluffier, and southern Iowa where the winds are stronger and sustained for a longer duration.
As a result of these conditions, a Winter Storm Warning has been expanded southwestward, reflecting the increased likelihood of travel impacts due to the combination of heavy snow and strong winds. Residents are advised to stay updated on the latest forecasts and to avoid travel if possible, particularly during the peak storm hours. The next scheduled update will be provided by 8 AM Saturday, as the situation continues to evolve.
Ottumwa Radio will bring you the latest updates as soon as they are available.
