An intense six-day tornado event has resulted in numerous fatalities across eight states in the US, with ongoing rescue missions in Oklahoma, Texas, Illinois, and Indiana as a Level 4 out of 5 tornado emergency is still in effect for 40 million residents. State emergencies have been declared by governors, and National Guard units have been mobilized, while FEMA is strategically placing disaster response assets in anticipation of what experts predict will be another night of severe long-track EF3+ tornadoes. The death count is still being verified as rescue teams comb through debris in the affected regions.