NEW : Low visibility causes ground delays at three New York-area airports . The FAA has issued a notice to pilots that the runway lights will be dimmed for several hours on Friday and Saturday as part of an effort to reduce nighttime air traffic delays. Possible tornadoes touch down in Georgia , Maryland . NEW : Effingham and Champaign counties in Illinois reported flooding . High winds strike parts of the Southeast , mid-Atlantic . Storm is expected to affect the Upper Midwest , Great Lakes and Northeast .
NEW : Low visibility causes ground delays at three New York-area airports . The FAA has issued a notice to pilots that the runway lights will be dimmed for several hours on Friday and Saturday as part of an effort to reduce nighttime air traffic delays. Possible tornadoes touch down in Georgia , Maryland . NEW : High winds strike parts of the Southeast , mid-Atlantic . Storm is expected to affect the Upper Midwest , Great Lakes and Northeast .