meteorologist and tornado expert Thomas P. Grazulis created the outbreak intensity score (OIS) as a way to rank tornado outbreaks. For the score, only significant...

See List of tornado outbreaks by outbreak intensity score See List of tornado events by year 2020 Currently 2020–Present See List of tornadoes by calendar...

myths List of F5 and EF5 tornadoes List of F4 and EF4 tornadoes List of tornadoes and tornado outbreaks List of tornado outbreaks by outbreak intensity score...

climatology Tornado myths List of tornado outbreaks List of tornado outbreaks by outbreak intensity score List of F5 and EF5 tornadoes List of F4 and EF4...

Super Outbreak. In 2023, tornado expert Thomas P. Grazulis created the outbreak intensity score (OIS) as a way to rank various tornado outbreaks. The 1974...

The 2011 Super Outbreak was the largest, costliest, and one of the deadliest tornado outbreaks ever recorded, taking place in the Southern, Midwestern...

large, deadly and major tornado outbreak occurred across the Central and Southern United States from May 6–10, 2024, as a result of a slow-moving trough...

created the outbreak intensity score (OIS) as a way to rank various tornado outbreaks. The 1965 Palm Sunday tornado outbreak received an OIS of 238, making...

very large, deadly and destructive tornado outbreak occurred across the Midwestern, Southern, and High Plains regions of the United States, primarily on...

Clarksville tornado alone. The tornado outbreak scored 15 points on the outbreak intensity score, ranking it as a significant tornado outbreak. This system...

1, 2023. List of North American tornadoes and tornado outbreaks List of tornado outbreaks by outbreak intensity score Weather of 2023 List of F4 and EF4...

is measured by the Enhanced Fujita Scale, which measures tornado intensity on a scale of EF0 to EF5 based on wind speed and intensity of destruction....

book Significant Tornadoes 1974–2022 Grazulis created a new scale called the outbreak intensity score (OIS) to rank tornado outbreaks. For the OIS, only...

event was given an outbreak intensity score of 28 points, ranking it as a significant tornado outbreak, and five people were killed by non-tornadic events...

created the outbreak intensity score (OIS) as a way to rank various tornado outbreaks. The tornado outbreak sequence of May 2003 received an OIS of 232, making...

outbreak of March 21–22, 1952 – Produced at least 8 violent tornadoes exactly 20 years later List of North American tornadoes and tornado outbreaks All...

This page documents notable tornadoes and tornado outbreaks worldwide in 2006. Strong and destructive tornadoes form most frequently in the United States...

damaging another one. List of North American tornadoes and tornado outbreaks List of F4 and EF4 tornadoes List of F5 and EF5 tornadoes All dates are based...

of "Significant Tornadoes" List of natural disasters by death toll List of tornado-related deaths at schools List of tornadoes and tornado outbreaks List...

of Minnesota List of North American tornadoes and tornado outbreaks Tornadoes of 1969 All losses are in 1969 USD unless otherwise noted. An outbreak is...

another tornado of unknown intensity that destroyed several buildings and killed one person in the Sheyang area. A total of 99 people were killed by the two...

Cary Elwes as a group of amateur but spirited storm chasers trying to deploy a tornado research device during a severe outbreak in Oklahoma. Twister was...

the final day of the Flint–Worcester tornado outbreak sequence. It stayed on the ground for 48 miles (77 km) and 78 minutes. The tornado injured 1,288...

damaging outbreak of 11 tornadoes impacted the Southeastern United States on the last two days of March 1962. The outbreak was highlighted by a catastrophic...

This page documents the tornadoes and tornado outbreaks of 1975, primarily in the United States. Most tornadoes form in the U.S., although some events...

February 25, 2016. "The International Tornado Intensity Scale". Tornado and Storm Research Organisation. Tornado and Storm Research Organisation. 2016...

publish Significant Tornadoes 1974–2022, which includes the outbreak intensity score (OIS), a new way to classify and rank tornado outbreaks. December 2023–April...

large, weeklong tornado outbreak sequence of 73 tornadoes occurred on May 3–9, 1961, impacting areas from Utah to the East Coast of the United States...

early-season tornado outbreak in the Southern United States was responsible for eight deaths and 53 injuries. On January 24, an EF3 tornado struck Deer...

in favor. May 22 Tornado outbreak sequence of May 19–27, 2024: Four people are killed and at least 35 are injured in a tornado outbreak in Iowa. President...