Update 2:49 a.m.:
The National Weather Service has canceled the tornado watch for Bond, Clinton, Fayette, Marion, Montgomery, Washington, Madison, Monroe, Randolph, and St Clair counties.
Return to bnd.com on Tuesday for more coverage of the storms.
Update 2:41 a.m.:
KSDK reports that most of the Madison County outages are centered around Alton, Brighton and Staunton. It also appears the storms did damage in the western suburban counties of St. Louis and also in Jefferson County, Mo.
Update 2:24 a.m.:
An update to the reported outages in metro-east counties:
▪ Madison - 2,001
▪ Macoupin - 1,920
▪ St. Clair - 376
Jerseyville remains at 1,515; Monroe, Clinton and Washington report no outages.
Update 2:20 a.m.:
The severe thunderstorm warning for Clinton, Washington and Marion counties is canceled.
Update 2:14 a.m.:
From the national weather service: At 2:06 a.m., severe thunderstorms were located along a line extending from Odin to near Ashley to 8 miles south of Nashville moving east at 50 mph.
Update 2:10 a.m.:
The National Weather Service has canceled the severe thunderstorm warning for St. Clair and Randolph counties. It remains in effect for Clinton, Washington and Marion counties.
Update 1:57 a.m.:
From the national weather service: At 1:54 a.m., severe thunderstorms were located along a line extending from Shattuc to near Nashville to near Coulterville, moving east at 45 mph.
Update 1:52 a.m.:
These are the counties still under the tornado watch that remains in effect until 4 a.m.: Bond, Clinton, Fayette, Madison, Marion, Monroe, Montgomery, Randolph, St. Clair, Washington.
Update 1:50 a.m.:
The storms coming through the metro-east early Tuesday morning are part of a system stretching from the upper peninsula of Michigan to the Texas-Oklahoma border.
Update 1:47 a.m.:
Clinton County has been added to the tornado watch in effect until 4 a.m.
Update: 1:46 a.m.:
The severe thunderstorm warning for Monroe County has expired. Monroe County remains under a tornado watch until 4 a.m.
Update 1:34 a.m.:
The tornado warning for Montgomery County is canceled. The severe thunderstorm warning for St. Clair County is extended until 2:30 a.m. and includes the eastern part of the county. Clinton, Washington, and Randolph counties are also included in the warning.
Update 1:32 a.m.:
As the storm begins to move through the region, Ameren has updated the number of outages in metro-east counties:
▪ Madison County 1,930
▪ Jersey County 1,515
▪ St. Clair County 124
Monroe and Clinton counties report no outages as of 1:30 a.m.; Randolph County reports only 13.
Update 1:23 a.m.:
Montgomery County, IL is under a tornado warning.
Update 1:13 a.m.:
Southern Illinos Fire Incidents reports a tornado warning in Missouri across the river from Monroe County. Fults, Valmeyer, Waterloo, Columbia, and Hecker are in the path of the storm.
Update 1:04 a.m.:
Ameren is reporting outages in the metro-east and surrounding counties:
▪ 1,474 in Jersey County
▪ 1,641 in Madison County
▪ 327 in St. Clair County
Update 1:00 a.m.:
More on the severe thunderstorm warning: At 12:47 a.m., severe thunderstorms were located along a line extending from Valley Park to near Horine, moving east at 55 mph. Hazard: 60 mph wind gusts and penny size hail. Impact: Expect damage to roofs, siding, and trees.
Locations affected: Belleville, O’Fallon, East St. Louis, Fairview Heights, Cahokia, Swansea, Shiloh, Waterloo, Columia, Mascoutah, Centreville, Lebanon, Freeburg, Dupo, Millstadt and Red Bud; Interstate 64 between exits 12 and 23 in Illinois; Interstate 55 in Missouri between exits 174 and 191.
Update 12:51 a.m.:
The National Weather Service has issued a severe thunderstorm warning for Monroe County and St. Clair County. It is in effect until 1:45 a.m.
Update 12:06 a.m.:
Multiple tornado warnings have popped up in Missouri. If this track holds together, Randolph and Jackson counties are in the path, but they remain about an hour away.
Update 11:44 p.m.:
Southern Illinois Fire Incidents reporter a semi rollover on Interstate 64 at mile marker 56.
Update 11:35 p.m.:
The storm system has reached northern Illinois and is rapidly approaching Southern Illinois and St. Louis.
Update 10:51 p.m.:
Southern Illinois Fire Incidents report on its Facebook page that a large tree has blwon over on Illinois 154 near Flamingo Road near Sparta. Drivers are asked to avoid the area; units are en route. They also say that power poles are down.
Update 10:40 p.m.:
Southern Illinois Fire Incidents reports on the organization’s Facebook page that a tree was down in Lebanon. In addition, scanner reports indicate a power line was down in Collinsville in the 400 block of South Combs Street.
Update 10:25 p.m.:
St. Clair County EMA officials confirm a tornado touched the ground in Columbia, Mo.
Update 9:30 p.m.:
Earlier this evening, National Weather Service meteorologists issued a hazardous weather outlook for Southern Illinois and parts of Missouri.
The hazardous weather notice warns of possible severe thunderstorms Monday night, across central and southeast Missouri. The storm could bring damaging winds and a chance for isolated large hail and tornadoes.
The National Weather Service has issued a tornado watch for St. Clair and surrounding counties, effective from 8:50 p.m. Monday until 4 a.m. Tuesday.
Counties under the watch include Adams, Brown, Bureau, Calhoun, Carroll Cass, Fulton, Greene, Hancock, Henderson, Henry, Jersey, Jo Daviess, Knox, Macoupin, Madison, Marshall, Mason, Mcdonough, Menard, Mercer, Monroe, Morgan, Peoria, Pike, Putnam, Randolph, Rock Island, Sangamon, Schuyler, Scott, St. Clair, Stark, Stephenson, Tazewell, Warren, Whiteside and Woodford.