What actions should people take when a tornado warning is issued?

Apr 30, 2024 ... What causes a tornado? ... Tornadoes begin with thunderclouds, known as cumulonimbus clouds. Warm drafts of air rise up and feed thunderstorms. Mar 13, 2025 ... What can cause a tornado? ... The large areas of low atmospheric pressure that come with some storm systems can spawn tornadoes. Low pressure is ... Dec 13, 2011 ... It's actually false: A butterfly in Brazil can flutter as hard as it likes, but it still can't whip up a tornado in Texas. Jun 17, 2014 ... What causes deadly twisters? The Native Americans of Oklahoma offered one answer. Jan 20, 2023 ... What are the main causes of a tornado? The collision of warm, moist air and cold, dry air causes tornadoes. When these two air masses meet, they ... Dec 6, 2023 ... Cold, dry air aloft from the North Pole meets warm, humid air from the Gulf of Mexico. These air masses of different temperatures and pressures ... Tornadoes develop when wind variations with height support rotation in the updraft. As seen below, tornadoes come in different sizes, many as narrow rope-like ... Jun 24, 2022 ... ORIGIN AND CAUSE OF A TORNADO · A combination of humid and dry air. · Supercells · Spring currents · In the afternoon. Feb 25, 2025 ... How exactly do tornadoes form? What are the causes of wind shear that lead to rotation? NOAA scientists are working to learn more about tornado ... Mar 15, 2025 ... What's causing a multi-day outbreak of deadly tornadoes across the U.S. ... A second round of violent weather is barreling across the central and ...