August 20, 2026

Midwest Storm Chasers

Live Weather Coverage & Severe Storm Reporting

⚠️ Dense Fog Advisory – Monona; Harrison; Shelby; Pottawattamie; Mills; Montgomery; Fremont; Page; Knox; Cedar; Thurston; Antelope; Pierce; Wayne; Boone; Madison; Stanton; Cuming; Burt; Platte; Colfax; Dodge; Washington; Butler; Saunders; Douglas; Sarpy; Seward; Lancaster; Cass; Otoe; Saline; Jefferson; Gage; Johnson; Nemaha; Pawnee; Richardson – Thursday, August 20, 2026

Event Dense Fog Advisory
Severity Moderate
Urgency Expected
Certainty Likely
Area Monona; Harrison; Shelby; Pottawattamie; Mills; Montgomery; Fremont; Page; Knox; Cedar; Thurston; Antelope; Pierce; Wayne; Boone; Madison; Stanton; Cuming; Burt; Platte; Colfax; Dodge; Washington; Butler; Saunders; Douglas; Sarpy; Seward; Lancaster; Cass; Otoe; Saline; Jefferson; Gage; Johnson; Nemaha; Pawnee; Richardson
Effective 8/20/2026, 2:17:00 AM CDT
Expires 8/20/2026, 10:00:00 AM CDT

Dense Fog Advisory issued August 20 at 2:17AM CDT until August 20 at 10:00AM CDT by NWS Omaha/Valley NE

Details

* WHAT…Visibility one quarter mile or less in dense fog.

* WHERE…Portions of southwest and west central Iowa and east
central, northeast, and southeast Nebraska.

* WHEN…Until 10 AM CDT this morning.

* IMPACTS…Low visibility could make driving conditions hazardous.

Instructions

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


This alert was automatically posted by SkyGuard, MWSC’s severe weather alerting system. Source: National Weather Service.