The possibility of a tornado results in a "tornado watch" for a certain area and time.
The actual existence of a tornado results in a tornado warning which is effective until cancelled but may be limited in time.
If a thunderstorm is capable of producing a tornado in the immediate future or if a tornado has been detected then a tornado warning is issued. If general conditions are favorable for tornadoes but there is not necessarily an immediate threat, then a tornado watch is issued.
If a thunderstorm is capable of producing a tornado in the immediate future or if a tornado has been detected then a tornado warning is issued. If general conditions are favorable for tornadoes but there is not necessarily an immediate threat, then a tornado watch is issued.
If a tornado has been detected or spotted then a tornado warning is issued.
If a tornado is spotted a tornado warning is issued.
No, a tornado watch is issued when the general weather conditions can produces tornadoes. If a tornado is spotted a tornado warning is issued.
a tornado warning would be issued if it is in your county and a tornado watch if it is out of your county.
If an announcement indicates a general possibility of tornadoes, but not that there is an imminent danger, then it is called a tornado watch. If there is an imminent threat of a tornado, then a tornado warning is issued.
Tornado warning
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.
The first tornado warning was issued on March 20, 1948 for a storm that produced a tornado in the Oklahoma City area.
If a tornado is spotted or is detected by radar, then a tornado warning will be issued.
Under these circumstances a tornado warning would be issued.