Harmful Algal Bloom (HAB) Event Information
Bloom Code 25-3417-B1
Where
Water Body Cayuga Lake
Latitude and Longitude 42.586468, -76.618742
Segment Lakeshore Segment Southeast 2: Lake Ridge Point to Salt Point Natural Area
County Cayuga
Extent Large Localized
When
Bloom Reported July 15, 2025 01:30 PM
Bloom Sampled July 15, 2025 01:30 PM
Microscopic Examination
What
Bloom Genera [1]
Microscopy Present Dominant

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: Air temp approximately 82 F, and lake surface temp warm. No breeze HABs quite evident and widespread along all of shoreline, and in most locations at least out into lake 20 ft or so beyond the end of docks. Also significant green algae near shore in spots

Weather
Weather Cloudy
Wind speed
Wind direction
Water Temp
Air Temp