By: Stephen McCoy
For the weekend, an upper level high pressure ridge will be located over much of the northern Midwest, maintaining dry conditions aloft. For Friday, a surface high pressure system will extend southwest from central Canada into the Great Lakes region. The anti-cyclonic flow around the pressure system will result in winds over eastern Wisconsin largely from the northeast, bringing below-normal temperatures to the region. As with the upper levels, dry air will be persistent in the lower levels, resulting in clear conditions throughout the day.
Saturday will start much like Friday with minimal cloud cover, but with temperatures beginning to return to normal as the surface high pressure breaks down over the region. With no steering factor, surface winds will be relatively calm; a low pressure system approaching the region from the south on Sunday will cause winds to gradually shift to the southeast. Much like Friday, no rainfall is expected as dry air remains over the area.
As previously mentioned, a low pressure system over the southern plains will make an approach towards the Midwest on Sunday, shifting winds to the southeast. A local high pressure system will also develop over the northern Great Lakes, which will intensify surface winds from Saturday; gusts during the day could reach 20 mph. Minor cloud cover may move in for the afternoon in the low and mid levels as the pressure system moves towards the region. Rainfall is unlikely during Sunday's race, though some isolated showers may be possible during the evening.
Saturday will start much like Friday with minimal cloud cover, but with temperatures beginning to return to normal as the surface high pressure breaks down over the region. With no steering factor, surface winds will be relatively calm; a low pressure system approaching the region from the south on Sunday will cause winds to gradually shift to the southeast. Much like Friday, no rainfall is expected as dry air remains over the area.
As previously mentioned, a low pressure system over the southern plains will make an approach towards the Midwest on Sunday, shifting winds to the southeast. A local high pressure system will also develop over the northern Great Lakes, which will intensify surface winds from Saturday; gusts during the day could reach 20 mph. Minor cloud cover may move in for the afternoon in the low and mid levels as the pressure system moves towards the region. Rainfall is unlikely during Sunday's race, though some isolated showers may be possible during the evening.
