A two-punch event will bring impacts to the forecast area later tonight through Tuesday with fog, ice and snow. Then two more systems to follow, Wednesday and Thursday. Read on for the full details to know what to expect in your area, including the ISC model suite for ice and snow…
Relative humidity values will be on the upper scale with the arrival of the system which will lead to dense fog developing later this evening across all zones of the forecast area. Eventually freezing rain will move into southern Iowa late tonight with this activity continuing north into central Iowa overnight. Then freezing air will work in on the northwest side of the system where freezing rain will transition to heavy wet snow during the pre-dawn hours of Tuesday morning. A mix of freezing rain/sleet and snow will continue in these areas through late Tuesday morning before the system slides off to the east. The more impactful part of this event will be the ice with accumulations of a glaze-0.25″ across parts of central and southern Iowa and a trace-2″ of snow accumulation across the eastern zone.
A second and third round of wintry mix precipitation will follow Tuesday night/Wednesday and again Wednesday night/Thursday. I am still sampling but fog will be with both events and once again the potential for ice accumulation. I will have more details to follow on this later. The forecast radar and ice/snow maps are below.
Stay tuned to Iowa Storm Center.com for additional updates.
Forecast Radar –
Ice Forecast –
Snow Forecast –
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