Another powerful storm system will target the forecast area this evening, maximizing overnight into Friday and ending later Friday night into early Saturday morning with impacts expected. Read on for the full details…
A strong pacific low will dig into the central plains later tonight and then move northeast into the Ohio valley and Great lakes by Friday. The current expectations are for snow to increase across western Iowa by late this afternoon and continue to press east into central and eastern Iowa overnight into Friday morning. The ISC heavy snowfall model is showing 0.5-2.0″ snowfall rates across parts of the central and southern forecast zones overnight tonight into Friday morning. Snow will begin to taper off from west to east with western Iowa by Friday afternoon, central Iowa in the evening and eventually eastern Iowa by early Saturday morning.
A widespread 6-12″ of snow for most of the forecast area with 2-6″ into the far northwest and southeast zones. In addition to the heavy snow, strong north/northwest winds with gusts of 30-50 MPH during the day Friday leading to significantly reduced visibility. The type of snow with this event will not be as heavy and wet as the last system and thus the likelihood of a near white-out conditions in multiple zones of the forecast area. Behind this system, arctic air will intrude over the forecast area into the weekend lasting through late next week.
Wind chill values of 10-20 below will be across western Iowa tonight into Friday morning with the cold Canadian air continuing south Friday night into Saturday morning with widespread 10-25 below wind chill values. A stronger shot of arctic air will then hit Saturday night into Sunday morning with wind chills of 30-40 below across the northwest half of the state and 20-30 below elsewhere.
Once Monday morning hits, wind chill warning values of 30-40 below across all forecast zones. Tuesday morning will still have wind chill values 20-30 below across the state and then 10-20 below Wednesday morning.
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