Watches Versus Warnings
Many people confuse the meaning of a tornado "watch" and tornado "warning" issued by the National Weather Service. Here's the difference:
- Watch: Tornadoes are possible in your area; remain alert for approaching storms.
- Warning: A tornado has been sighted or indicated by weather radar. If a tornado warning is issued for your area and the sky becomes threatening, move to your pre-designated place of safety.
Enhanced Fujita Scale (EF Scale)
A common misnomer regarding the Fujita scale is that many people confuse it to be a measurement of size of a tornado when in actuality it is the amount of destruction caused by the tornado.
The EF-scale is a set of wind estimates (not measurements) based on damage. The Enhanced Fujita (EF) tornado damage scale takes into account things like damage to a sided house compared to a brick house or to a 3-story building vs. a shopping mall.