No storm has entered Missouri while designated at hurricane strength. According to an internet search, between 1900 and 2011, Missouri was hit by the remnants of 44 hurricanes or tropical storms. Of those 44, only six were at tropical storm strength when they entered Missouri.
To determine the distance of a storm from your location, you can use the "flash-to-bang" method. Count the seconds between seeing a lightning flash and hearing the thunder. Divide this number by 5 to get the distance in miles. For example, if you count 10 seconds between the flash and the thunder, the storm is approximately 2 miles away.
If you count the number of seconds from when you see the flash of lightening to when you hear the thunder, you will have a rough estimate as how far the storm is.
A tornado
Storm Chasers - 2007 Not in Kansas Anymore 3-5 was released on: USA: 15 November 2009
Stormy storms
Storm Chasers - 2007 No Place Like Kansas 2-6 was released on: USA: 23 November 2008
The distance between you and the storm is approximately 1 mile away. This is calculated by dividing the time difference between seeing the lightning and hearing the thunder (7 seconds) by 5, as it takes roughly 5 seconds for sound to travel one mile.
Count the seconds between when the lightning flashes and the sound of the thunder. Divide the number of seconds that pass by five to get the distance in miles or by eight to get the number of kilometers. Note that this only gives you the distance to the bolt of lightning. The storm cell itself is probably at least a few miles across.
For a long time it was thought by many people that the number of seconds after the lightning strikes is the miles the center of the storm is from you. Although this does show how light travels faster than sound, this system is wrong. The actual method for finding the distance the heart of the storm is from you is by counting after you see lightning; and stop counting after you hear the thunder. Now, for every five seconds after the lightning struck until you hear the thunder, it is one mile away. So if ten seconds go by between lightning and thunder, the center of the storm is two miles away.
It is not false, but it may be inaccurate, because -- lightning can come from different parts of the storm, and hit miles away -- if multiple flashes occur, the sound cannot be assigned to one bolt -- the storm is high in the air, so part of the distance measured may be altitude All the counting seconds measures is the distance between you and the closest point on the lightning's path (every 5 seconds is about a mile, every 3 seconds is about a kilometer). But sometimes warm air will refract sound away from you.
They go to basements, storm cellars, or other safe shelters.