At this year’s Yahara Pride Farms’ conference, one message came out loud and clear: farmers are leading the way in conservation, but their stories too often go untold.
Yahara Pride Farms: Clean Water and Climate Solutions
Thank you! 2025 Frozen Assets a success!
Thank you for helping make Frozen Assets a week to remember!
Thank you for helping make the 2025 Frozen Assets Festival and 5K Run, Walk, and Skate one of the best ever! Throughout the week, Frozen Assets not only brought the community together, but it also educated people and raised awareness for our number one asset – the lakes!
2024 Water Quality Monitoring Results
LakeForecast water quality monitoring in 2024
Clean Lakes Alliance’s LakeForecast water quality monitoring program completed its 12th season in 2024. This program is entirely volunteer-implemented, with over 100 trained monitors assessing water quality conditions from nearshore and offshore locations across all five Yahara lakes (Mendota, Monona, Wingra, Waubesa, and Kegonsa). From Memorial Day through Labor Day, volunteers recorded water clarity, air and water temperature, waterfowl presence, the extent of floating plant debris, and the severity of green algae and cyanobacteria at public beaches, lakeside parks, and private piers. Submitted data can be seen in real-time on Lakeforecast.org or our free app, allowing the public to stay up to date on current lake conditions.
Lake Mendota’s first freeze this season
Cold overnight temperatures help Lake Mendota freeze, briefly
Ice on! Cold nighttime temperatures, combined with cold water and light winds, helped Lake Mendota officially freeze on December 25, 2024, as declared by the Wisconsin State Climatology Office. Two days later, on December 27th, Lake Mendota reopened as high temperatures climbed well into the 40s. The largest lake in the Yahara Watershed froze for the first time in the 2024-2025 winter season just five days after December 20th, which is the median ice-on date for Lake Mendota. The latest date ice-on has been declared is January 30th, and that took place in 1932.
Yahara Lakes Fish Survey
A comprehensive fish survey is an important part of maintaining healthy fisheries in any lake. In the spring of 2023, Clean Lakes Alliance Watershed Engagement Manager Caitlin McAleavey joined a Wisconsin Department of Natural Resources (DNR) fisheries crew on Lake Kegonsa to learn more about what goes into assessing our lakes’ fish populations. The following is her account of the trip.
Aquatic Plant Harvesters – Not Your Typical Harvest
An interview with a Dane County Aquatic Plant Harvester Operator
If you’ve spent time around any of Greater Madison’s lakes, you’ve probably seen these large machines in action. Unofficially and incorrectly known as “weed cutters,” the machines and their operators play a vital role in keeping our lakes open to everyone. The proper name for the machine is aquatic plant harvester, because they’re not just cutting weeds, they’re harvesting and removing vegetation from our lakes.
So how do they work? What are they doing? Who is out there driving them? Clean Lakes Alliance visited Lake Monona on a beautiful August day to ride along on one of Dane County’s aquatic plant harvesters driven by Donn Kidd to get some answers.
Warm Weather Doesn’t Stop Frozen Assets
A winter of warm weather meant a Frozen Assets like we’ve never seen before. While poor ice conditions meant nothing could be held on Lake Mendota, we still engaged with community members on The Edgewater’s Grand Plaza!
Lake Mendota Events Canceled, On-Land Events ON!
Frozen Assets cancels all Lake Mendota events due to poor ice conditions
Due to continued warm weather, Clean Lakes Alliance has made the decision to cancel all Frozen Assets events scheduled to take place on Lake Mendota. The decision was made after multiple days of drilling test holes in Lake Mendota, as well as speaking with experts at the University of Wisconsin-Madison, a local meteorologist, and local law enforcement officials. Events including skydiving, Kites on Mendota, snowshoeing, pond hockey, and the Mary B will not be at Frozen Assets this year.
Ice on for Lake Mendota
January cold snap helps lake freeze
Ice on! Temperatures below zero, combined with cold water and low wind, helped Lake Mendota officially freeze on January 15, 2024, as declared by the Wisconsin State Climatology Office. Lake Mendota, the largest lake in the Yahara Watershed, froze a full 26 days after December 20th, which is the median ice-on date for the largest lake in the Yahara River Watershed. The January 15th freeze is the 3rd latest freeze date since monitoring began over 170 years ago. The latest ice-on date is January 30th, and that took place in 1932.
2023 Water Quality Monitoring Results
LakeForecast water quality monitoring in 2023
Clean Lakes Alliance’s LakeForecast water quality monitoring program completed its 11th season in 2023. This program is entirely volunteer implemented, with 90 trained monitors assessing water quality conditions from nearshore and offshore locations across all five Yahara lakes (Mendota, Monona, Wingra, Waubesa, and Kegonsa). From Memorial Day through Labor Day, volunteers recorded water clarity, air and water temperature, waterfowl presence, extent of floating plant debris, and the severity of green algae and cyanobacteria at public beaches, lakeside parks, and private piers. Submitted data can be seen in real-time on lakeforecast.org or our free app allowing the general public to stay up to date on current lake conditions.
