Iowa HALGIS - Harmful Algae Information System

Lakes

Show All Lakes

West Okoboji Lake Blackhawk Lake McIntosh Woods Lake Geode Lake

Layers

County River Network Watershed (HUC8) Fishing Waypoints Beaches

Analytics

Harmful Algae Estimator Fish Kill Estimate Algae Bloom Report

×

Harmful Algae Estimator

Microcystin: 50 ug/l

Dissolved Oxygen: 50 mg/L

Evaporation over lake: 5 mm/day

Harmful algae has a
decreasing trend

×

LEGEND

Fish Kill Magnitude

9-10 (>500,000)

7-8 (50,001 - 500,000)

5-6 (10,001 - 50,000)

3-4 (1001 - 10,000)

1-2 (1 - 1000)

0 (0)