When there are signs of an oncoming tornado and the people are warning you\alerting you about it, to be prepared.
A tornado warning is a higher level of alert, often meaning that a tornado has formed.
A tornado is a violently rotating column of air extending from the base of a thunderstorm to the ground. Tornadoes are often made visible by a funnel cloud. A tornado watch is a type of weather advisory indicating that general weather conditions favor the formation of tornadoes, A tornado watch does not indicate any specific threat. A tornado alert is an obsolete weather advisory that indicated a storm with potential to produce a tornado. Tornado alerts were gradually phased out of use in the 1970s. Now any time a storm is capable of producing a tornado, a tornado warning is issued.
Yes stay calm but alert
A tornado alarm is a warning system that is used to alert people of an impending tornado. It is typically a loud siren or whistle that sounds when a tornado is spotted or conditions are favorable for one to occur, allowing residents to seek shelter and take necessary precautions.
A tornado watch means that weather conditions are favorable for tornadoes to form in a particular area, and people should stay alert and prepared. A tornado warning means that a tornado has been spotted or detected on radar in the area, and immediate action should be taken to seek shelter.
The National Weather Service issues a tornado warning when a tornado has been spotted on the ground or indicated by weather radar in your area. This is to alert residents to take immediate shelter and protect themselves from the approaching tornado.
During a tornado watch you should stay alert. Pay attention to broadcasts and advisories for if a tornado warning is issued, especially if there is a thunderstorm in your area. A tornado watch means that conditions are favorable for tornadoes to form, but the threat is not immediate. A tornado warning means that a tornado has been spotted or detected, or there is an immediate threat of one forming.
That is impossible to determine. Tornadoes have been occurring in Oklahoma since before there were people to record them.
It varies, but the average lead-time for a tornado warning is 15 minutes. Sometime lead times of up to half an hour can be issued.
There is no particular year. The first advisory for tornadoes, which today would be called a tornado watch, was issued on March 25, 1948 in central Oklahoma. It was not called a tornado watch then as it was an impromptu alert given by an Air Force meteorologist rather than official watch.
No, if a tornado is spotted a tornado warning is issued .A tornado watch is not as bad as a tornado warning is. The watch just means that it is the type of weather that could POSSIBLY produce a tornado. It doesnt even mean that there is rotation or high winds. A warning is something to worry about though.
A tornado watch is issued when general weather conditions in a region are favorable for the formation of tornadoes. Tornado watches are numbered in the order that they are issued. So tornado watch 4 is the 4th tornado watch issued in the country that year.