🟡 Moderate

Dense Fog Advisory

Franklin; Butler; Bremer; Hardin; Grundy; Black Hawk; Marshall; Tama; Jasper; Poweshiek; Marion; Mahaska; Monroe; Wapello; Appanoose; Davis

Dense Fog Advisory issued November 2 at 1:16AM CDT until November 2 at 8:00AM CST by NWS Des Moines IA

Alert Description

* WHAT...Visibility one quarter to one half mile in dense fog. * WHERE...Portions of central into east central Iowa. * WHEN...Until 8 AM CST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. Temperatures near and below freezing could lead to freezing fog in some locations. While road temperatures are primarily above freezing, isolated slick spots could develop on bridges and overpasses.

Safety Instructions

If driving, slow down, use your headlights, and leave plenty of distance ahead of you.

Time Information

Effective

Nov 2, 2025, 7:16 AM

Expires

Nov 2, 2025, 2:00 PM

Issued

Nov 2, 2025, 7:16 AM

Alert Details

Severity

Moderate

Urgency

Expected

Certainty

Likely

Issued By

NWS Des Moines IA

National Weather Service