Lewellen River Flood Category Changes - Effective August 28, 2019

An Arctic Outbreak; Heavy Lake Effect Snow in the Great Lakes Region

An Arctic outbreak of cold air will expand south and east from the northern Plains through the Midwest and persist into next week. Dangerously cold wind chills are expected in the Northern Plains and Upper Midwest. Heavy lake-effect snow bands and snow showers have developed downwind of the Great Lakes, and will continue into next week. Travel could be very difficult to impossible. Read More >

New Flood Categories	Previous Flood Categories
Action Stage: 7.0 ft	Action Stage: 6.5 ft
Flood Stage: 8.0 ft	Flood Stage: 7.5 ft
Moderate Flood Stage: 9.0 ft	Moderate Flood Stage: 8.5 ft
Major Flood Stage: 10.0 ft	Major Flood Stage: 9.5 ft
Gage zero datum: 3286.992 ft above MSL NAVD88

New Flood Categories

Previous Flood Categories

Action Stage: 7.0 ft

Action Stage: 6.5 ft

Flood Stage: 8.0 ft

Flood Stage: 7.5 ft

Moderate Flood Stage: 9.0 ft

Moderate Flood Stage: 8.5 ft

Major Flood Stage: 10.0 ft

Major Flood Stage: 9.5 ft

Gage zero datum: 3286.992 ft above MSL NAVD88