Harmful Algal Bloom (HAB) Event Information
Bloom Code 25-3464-B1
Where
Water Body Cayuga Lake
Latitude and Longitude 42.49668, -76.53988
Segment Lakeshore Segment Southwest 3: Glenwood Point
County Tompkins
Extent Widespread
When
Bloom Reported July 09, 2025 02:00 PM
Bloom Sampled July 09, 2025 02:00 PM
Microscopic Examination July 09, 2025
What
Bloom Genera [1]
Microscopy Present Dominant
Dolichospermum

Bloom Chemistry
[1] Genera - plural of genus, a category of classification in biology that ranks between the family level and the species level. Because there are many different species of bacteria that are difficult to distinguish, it is more useful to classify bacteria by genus rather than species.
[2] Microcystin
Map of HAB event
Bloom Description

Volunteer Reports: Temp is warm and winds still. The lake temperature from Monday to Wednesday increased significantly. Both North and South, part of western shoreline bloom event. Extending both North and South, part of western shoreline bloom event.

Weather
Weather
Wind speed
Wind direction
Water Temp
Air Temp