Autumn began with fog as the National Weather Service in Des Moines issued a dense fog advisory until 9 a.m. Monday, with visibility less than one-quarter mile at times and near zero in some areas.
Light winds and clear skies, along with ample surface moisture from recent rains, had led to the development of dense fog early Monday across parts of central and south central Iowa. The fog should continue to expand through sunrise before quickly dissipating by mid-morning.
Motorists are advised to use caution when driving early Monday because visibility could change rapidly when entering areas of denser fog.
Along with Perry, the cities affected by the dense fog advisory include Humboldt, Eagle Grove, Clarion, Belmond, Hampton, Rockwell City, Manson, Lake City, Pomeroy, Fort Dodge,
Webster City, Iowa Falls, Eldora, Ackley, Grundy Center, Reinbeck, Conrad, Dike, Wellsburg, Carroll, Jefferson, Boone, Ames, Marshalltown, Tama, Toledo, Traer, Dysart, Gladbrook, Audubon, Exira, Guthrie Center, Panora, Bayard, Casey, Waukee, Adel, Des Moines, Newton, Grinnell, Atlantic, Greenfield, Stuart, Adair, Fontanelle, Winterset, Earlham, Indianola, Norwalk, Carlisle, Pella, Knoxville, Oskaloosa, Corning, Creston, Osceola, Chariton, Albia, Ottumwa, Bedford, Lenox, New Market, Mount Ayr, Lamoni, Leon, Corydon, Seymour, Allerton, Humeston, Centerville and Bloomfield.
Along with Dallas County, counties affected by the dense fog advisory include Humboldt, Wright, Franklin, Calhoun, Webster, Hamilton, Hardin, Grundy, Carroll, Greene, Boone, Story, Marshall, Tama, Audubon, Guthrie, Polk, Jasper, Poweshiek, Cass, Adair, Madison, Warren, Marion, Mahaska, Adams, Union, Clarke, Lucas, Monroe, Wapello, Taylor, Ringgold, Decatur, Wayne, Appanoose and Davis.
ThePerryNews.com will update this weather story as forecasts evolve.