Winter Weather Advisory 01/05/2025 01:22 for Iowa areas

...SHARP GRADIENT OF ACCUMULATING SNOW FOR SOUTHERN IOWA TODAY AND THIS EVENING... .A winter storm continues to near the state and will bring accumulating snowfall to southern Iowa today through this evening. So far early this morning, there have been a few bursts of flurries or light snow over southern Iowa and as far north as I-80 in a few places, but dry air in the lower part of the atmosphere continues to limit snowfall so far. As we continue through the day, snow should be able to develop and sustain itself over far southern Iowa with the highest snowfall amounts near the Missouri border. Winds from the northeast and north averaging 10 to 20 mph with higher gusts will reinforce this dry air. This will cause a very sharp gradient in snowfall amounts with lower amounts in the northern part of a given county and higher amounts in the southern part of the same county over far southern Iowa. Any shift in the predicted storm track will therefore have significant impacts on forecast snowfall amounts so continue to monitor the forecast for the latest updates. Little to no snow is expected north of I-80. Finally, the winds will cause at least some minor blowing and drifting snow where the new snow falls. * WHAT...Snow. Additional snow accumulations between 1 and 4 inches, with a very tight gradient in snow amounts expected. Winds gusting as high as 30 mph may produce blowing and drifting snow. * WHERE...Southern Iowa along the Highway 34 corridor. * WHEN...Until 3 AM CST Monday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Plan on slippery road conditions.