A series of severe thunderstorms and tornado watches have been issued across several states, particularly affecting southeastern Oklahoma and surrounding areas. Meteorologists have warned of damaging winds, large hail, and the possibility of tornadoes, with specific warnings for Pittsburg, Grady, McClain, and Canadian counties. As severe storms move eastward, parts of the Plains, including Kansas City, are also at risk. The severe weather is expected to impact Halloween plans for over 30 million people in the U.S. Updates indicate that areas are under tornado watches until late evening, with conditions warranting increased caution as flash flooding and severe thunderstorms pose significant threats.