Update 2:15 a.m.
The National Weather service has canceled the signficant weather advisory. No watches or warnings are currently in place for southern Illinois.
Update 12:57 a.m.:
A significant weather advisory has been issued for St. Clair and Madison counties with Belleville, Granite City, O’Fallon, Alton, East St. Louis, Collinsville and Edwardsville affected.
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At 12:39 a.m., Doppler radar was tracking strong thunderstorms along a line extending from near Elsberry to Chesterfield to near Olympian Village in Missouri. The storms were moving northeast at 35 mph.
The National Weather Service issued a hazardous weather outlook for several Southern Illinois counties just before 4 p.m. Friday.
The notice states the main threats of Friday night’s strong thunderstorms are damaging winds and large hail.
“Additional strong to severe thunderstorms are expected to develop Saturday afternoon into early Saturday evening. These thunderstorms will be capable of large hail, locally damaging winds, and isolated tornadoes,” the outlook stated.
Counties in Illinois included in the outlook are Greene, Macoupin, Montgomery, Bond, Fayette, Clinton, Marion, Washington, Randolph, Adams, Brown, Pike, Calhoun, Jersey, Madison, St. Clair and Monroe.