Winter storm takes aim on eastern Iowa Monday
Eastern Iowa will likely see the strongest winter storm of the season starting Monday morning and continuing through the evening commute. The forecast calls for widespread 2-4", with an area of 4-6" confined to areas near the I-80 corridor. There is also the potential for isolated areas to pick up 6"+ in the strongest snow bands.
As of Sunday afternoon, the entire area is under a Winter Weather Advisory which goes into effect at 9 a.m. Monday. The Advisory continues until 7 p.m. Monday evening. Once confidence increases where the heaviest snow bands are forecast to set up, some areas may be upgraded to a Winter Storm Warning.
In regard to accumulation, as mentioned previously, widespread 2-4" of snow is likely across the area with 4-6" likely in counties closer to I-80. Right now that probability of 6"+ is in close proximity to the I-80 corridor, and it's this area that may be upgraded to a Winter Storm Warning.
The potent winter system will start impacting eastern Iowa starting around 9 a.m. and will move from west to east across the area. The heaviest of the snow looks likely betweem 11 a.m. and 4 p.m. In these heavier snow bands, visibility will be reduced to less than a mile and snow-fighting methods may not be able to keep up with the higher snow rates. During this time travel will be impacted heavily.
We will continue to update the forecast on air and online. Stay tuned for the latest forecast.