Blog

2019 Clean Lakes Community Breakfast Speakers

The Mayor, The Executive, and The Secretary

Clean Lakes Alliance is pleased to announce a trifecta of speakers joining us for our Community Breakfast on Wednesday, May 8th at the Alliant Energy Center Exhibition Hall. We’ll hear from City of Madison Mayor Satya Rhodes-Conway, Dane County Executive Joe Parisi, and Wisconsin DNR Secretary Preston Cole about their plans for the Yahara Watershed.

At the breakfast, we’ll renew our public partnerships with the city, county, and state to align our efforts for the Yahara CLEAN Compact and to improve water quality. Join us for the beginning of a NEW united approach to lake health.

Read More

Lake Mendota Frozen Dec 2018

It’s Official – ICE ON for Lake Mendota!

Ice on date beats median freeze date by five days

Despite warm weather in Madison over the weekend, cool nights, light winds, and cold water helped Lake Mendota officially freeze on Saturday, December 15th. Lake Mendota, the largest lake in the Yahara Watershed, froze eight days after the smallest lake in the watershed, Lake Wingra, which officially froze on December 7th. Lake Monona officially froze on December 11th.

The Wisconsin State Climatology Office requires ice to hold for a period of 24 hours before a lake can officially be declared frozen over. After ice took shape this weekend, staff waited to see whether it would hold out through the warm daytime temperatures. The December 15th freeze date is 12 days ahead of last year’s December 27th freeze date, and a surprising five days ahead of the December 20th median freeze date. The latest freeze date for Lake Mendota was January 30th – which happened in the winter of 1932.

The Wisconsin State Climatology Office makes the official determination as to whether the lake is frozen. The climatologists use the same guidelines they have used for decades to determine whether the lakes are iced over. This allows for a continuity in data collection. Read more: Determining ice cover on Madison’s lakes.

Read More