Strong north to northeast winds affected the Lake Michigan shoreline and areas immediately inland from Sheboygan to Kenosha on Sunday. The strongest winds were reported within a few miles of the shore. Peak wind gusts were mostly between 45 and 50 mph. The strongest wind gust of 54 mph was reported at the marine observing station on the lakeshore at Kenosha, and the next strongest gust was 52 mph, measured at Port Washington harbor.
Peak Wind Gust
Proximity to Lake Michigan
Milwaukee International Airport
Sheboygan County Airport
Racine Batten Airport
West Bend Airport
Port Washington Marine
Milwaukee Marine (McKinley Marina)
Waukesha County Airport
The West Bend Airport, which is located about 14 miles from Lake Michigan, experienced a wind gust to 44 mph Sunday evening. This was most likely enhanced by the surrounding terrain (Kettle Moraine).
A tight pressure gradient was located over southern Wisconsin and Lake Michigan on Sunday. The tight pressure gradient was caused by high pressure building into southern Canada and the Northern Plains, while a large area of low pressure moved slowly through the Ohio Valley and eastern U.S.
Besides the pressure differences, an unstable atmosphere over the near shore waters of Lake Michigan, as well as reduced frictional effects, also contributed to the stronger wind gusts in areas close to Lake Michigan on Sunday.