Harmful Algal Bloom (HAB) Event Information
Bloom Code 25-3477-B6
Where
Water Body Cayuga Lake
Latitude and Longitude 42.53556, -76.54344
Segment Lakeshore Segment Southeast 4: Myers Park
County Tompkins
Extent Widespread
When
Bloom Reported September 28, 2025 02:45 PM
Bloom Sampled September 28, 2025 02:45 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 reported: Calm day with north wind, HAB all along the shoreline but stops before the most southern portion of my zone. Also, no HABs in adjacent zones 3420 or at 3419.

Weather
Weather Sunny
Wind speed
Wind direction
Water Temp
Air Temp