High Wind Warning/Advisory for the Chicago area ends – diminishing winds tonight

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Update7PM CST...

The High Wind Warning/Advisory for the Chicago area has ended, and winds will diminish this evening and overnight as high pressure builds into the Midwest and Great Lakes.

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CHICAGO -- Wind gusts are expected to reach as high 60 miles per hour across the far northern portion of the Chicago area, including counties adjacent to the Illinois-Wisconsin state line...Winnebago, Boone, McHenry and Lake Counties, and a High Wind Warning for this afternoon has been issued for those counties. Once wind gusts reach 60 miles per hour, damage increases - trees and power poles can come down. Trees have been reported down in Waukegan along with damage in the Rockford area as of 11:30AM CST. Elsewhere across the Chicago area a Wind Advisory for gusts over 50 miles per hour this afternoon.  

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CHICAGO -- The Chicago National Weather Service Forecast Office has issued a Wind Advisory (brown-shaded map on the highlighted map above) covering northeast Illinois into northwest Indiana calling for strong west winds with gusts 45 to 50 miles per hour between 9AM and 6PM CST Wednesday. High-profile vehicles, trucks, buses, vans traveling north-south will be most susceptible to these stronger wind gusts. Gale Warnings will be up for Lakes Michigan, Superior and Huron.

Deepening low pressure will move northeast through the western Ontario Canadian province into Hudson Bay Wednesday with the extremely tight pressure gradient extending far south across the Midwest and Great Lakes. High Wind Warnings/Advisories will be up, and winds will impact travel in all directions out of Chicago, especially so for those traveling farther north.