One or more tornadoes has caused extensive damage and apparent injuries across Northern portions of the St. Louis metro area. Scanner and other sources indicate heavy damage from St. Louis International Airport (Lambert Field) on to the East/Northeast. A concentration of reports of buildings / homes being damaged and persons being trapped is centered just East of the airport at this time.
Preliminary storm report map below. Please note it does not yet include all reports from North St. Louis:
Lambert Field has been closed by the FAA until further notice, due to extensive damage on the airport grounds.
I'll have more detailed information on this, including archived radar and detailed track maps, tomorrow.