What data is collected at surface weather stations?

Tornado season is generally March through August, although tornadoes can occur at any time of the year. They tend to occur in the afternoons and evenings. Feb 26, 2024 ... Additional scientific description. A large tornado in which the condensation funnel is at least as wide horizontally at the ground as it is in ... Watches are issued by the Storm Prediction Center for counties where tornadoes may occur. The watch area is typically large, covering numerous counties or even ... A funnel cloud is also a column of violently rotating winds extending down from a thunderstorm; however, it does not touch the earth as a tornado does. Nov 7, 2018 ... The spot of higher correlation coefficient values correlating with rotation is sometimes called a tornado debris signature, which was present ... They are categorized on a scale of EF-0 (weakest) to EF-5 (strongest). While history shows us that EF-0 and EF-1 tornadoes are more common than stronger ... A tornado watch means there is the possibility of a tornado happening, but that does not mean there is a tornado occurring at the time. A tornado is a relatively small-diameter column of violently rotating air developed within a convective cloud that is in contact with the ground May 10, 2024 ... A tornado emergency is the weather service's highest alert level. One is issued when a few criteria are met during a rare weather situation. Jul 18, 2016 ... A violently rotating column of air, pendant from a cumulonimbus cloud, and nearly always observable as a funnel cloud or tuba.