If, along the Wisconsin shore, the gradient arrives from the east in the afternoon, the wind will add to the onshore sea breeze, extending the enhanced air zone out to about 12-15 miles. By late afternoon the onshore sea breeze will slowly die out, followed by a few hours of gradient wind, until offshore land breeze starts up an hour or two after sundown. Work out to 10 to 12 miles offshore before sundown. Monitor water temperature if you're near the cold water zone centered near Sheboygan, where the magnitude of the onshore sea breeze will substantially increase due to the increased temperature differential. Arriving at night, a gradient wind from the east will be reduced or cancelled by offshore land breeze, with the transition zone full of holes. Stay out at least 10 miles to avoid the transition zone.