After the deadly tornadoes that hit Southwest Michigan on March 6, many have wondered why no tornado watch was issued before the storms arrived. The difference between tornado watches and tornado warnings is explained in detail. A tornado watch means conditions are favorable for tornadoes to develop across a large region and can cover multiple counties or even several states. However, watches are not issued for every storm that produces a tornado; forecasters may not issue a tornado watch if they believe there is a greater chance of multiple storms producing severe weather across a broad area. When a tornado warning is issued, immediate action is needed, with people advised to evacuate immediately. Experts also emphasised the importance of multiple warnings due to the rapid development of severe thunderstorms and the potential for severe storms to produce tornadoes.