South winds and high pressure in the upper atmosphere have brought beautiful sunny skies and warm temperatures to Wisconsin over the past week. This fantastic weather is expected to continue into Monday, with high temperatures remaining in the upper 70s to lower 80s inland from Lake Michigan. Lake breezes will keep temperatures cooler near Lake Michigan. High temperatures approached record high temperatures well inland. Saturday's high temperature in Madison was 81 degrees, which is only 2 degrees lower than the record high temperature of 83 degrees, set in 1949 and 1997.
The image above shows a forecast (valid at 1:00pm Sunday) of mean sea level pressure (MSLP) in green, surface winds in orange, and surface wind speed in the background image, where pink shades represent lighter winds and purple and blue represent stronger winds. Surface winds flow nearly parallel to MSLP contours, with some variation due to the effects of friction. The tighter the MSLP gradient, the stronger the winds will be. The winds will continue to blow out of the south, maintaining a very warm and dry airmass. Please view the high temperature graphics below: