Areas of Dense Fog Tomorrow AM

With light to moderate rain across the Stateline earlier today and temperatures already close to the dewpoint, expect areas of dense fog to develop after about 1am. The fog will be especially dense in low-lying areas, and in areas that received the most rainfall (generally southeast of Rockford). Fog is already being reported in central and eastern Iowa in places like Waterloo and Mason City. As clear skies gradually work into the Stateline, the air will quickly become saturated and fog will develop. Be sure to travel with your low-beam headlights, allow extra space between you and the driver ahead of you, and reduce your speed for safety.