Des Moines, IA – Drivers across Iowa should prepare for dense fog forming after midnight tonight, with the National Weather Service warning of hazardous travel conditions through Thursday morning.
According to the US National Weather Service in Des Moines, fog will become widespread toward sunrise Thursday, with most areas experiencing visibility of a few miles. However, forecasters say some places in northern Iowa may see visibility drop under one mile. The fog is expected to gradually lift and dissipate by around 9 a.m. Thursday.
Travelers are advised to use caution during overnight and early morning hours. Low visibility may lead to slower commutes and potential traffic delays, particularly on rural highways and interstates. The Weather Service recommends slowing down, allowing extra travel time, and using low-beam headlights when driving through foggy areas.
The advisory comes as temperatures remain cool overnight, increasing the likelihood of fog formation in valleys, low-lying areas, and along major roadways. Authorities caution that sudden patches of dense fog can make driving conditions unpredictable.
Motorists planning early travel Thursday morning are encouraged to monitor local forecasts and allow additional time to reach destinations safely.
