Update: 28 tornadoes struck Illinois on December 1
Updated December 6th at 3:30 p.m.
Another tornado has been reported by the National Weather Service from December 1st.
An EF-0 tornado, with max winds of 85 mph, touched down northwest of Detroit in Pike County, Illinois at 2:29 p.m.
The tornado's path length was .11 miles and path width was 25 yards.
Updated December 5th at 11 a.m.
The National Weather Service (NWS) has updated the number of confirmed tornadoes to have hit Illinois on Saturday, December 1.
NWS now says 27 tornadoes touched down across Illinois that day.
The National Weather Service says the earlier count of 30 tornadoes included a few duplicates that needed to be removed from Pike County and one from Morrisonville.
The new total comes after the NWS added survey results from Sangamon County as well as the addition of tornadoes from Mason, Cass, and Morgan counties.
Updated December 4th at 4:45 p.m.
A 30th tornado has now been confirmed to have struck Illinois on December 1. This latest confirmed tornado struck between Rochester and Mechanicsburg. It was an EF-1 with winds of up to 100 mph.
At least 29 tornadoes touched down in Illinois on Saturday, December 1, according to the National Weather Service.
This makes the outbreak the largest on record for December in Illinois.
The final number could grow due to crews continuing to survey sites to determine if the storm damage was caused by a tornado.
Illinois' previous December tornado record was 21 during an outbreak in 1957.