Dense Fog Advisory 03/03/2026 21:38 Iowa

Headline: 
Dense Fog Advisory issued March 3 at 11:38PM CST until March 4 at 10:00AM CST by NWS Des Moines IA
Event: 
Dense Fog Advisory
Urgency: 
Expected
Effective: 
March 3, 2026 - 9:38pm
Expires: 
March 4, 2026 - 7:45am
Description: 
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Much of the northern half of Iowa. * WHEN...Until 10 AM CST Wednesday. * IMPACTS...Low visibility could make driving conditions hazardous. * ADDITIONAL DETAILS...With temperatures below freezing in some areas, frost could deposit on roads leading to slick travel conditions by Wednesday morning.
Instruction: 
If driving, slow down, use your headlights, and leave plenty of distance ahead of you.
Area Description: 
Emmet; Kossuth; Winnebago; Worth; Palo Alto; Hancock; Cerro Gordo; Pocahontas; Humboldt; Wright; Franklin; Butler; Bremer; Sac; Calhoun; Webster; Hamilton; Hardin; Grundy; Carroll; Greene; Boone
Forcast Office: 
NWS Des Moines IA
Sender: 
w-nws.webmaster@noaa.gov