How does surface convergence contribute to thunderstorm development?

May 8, 2024 ... When the NWS Storm Prediction Center issues a tornado watch for an area, it means tornado development is possible and people in the area should ... Apr 3, 2023 ... Tornado Emergencies are rare and only issued when 'severe threat to human life and catastrophic damage are imminent or ongoing' for a confirmed tornado. Tornado Definition ... Tornado - A violently rotating column of air touching the ground, usually attached to the base of a thunderstorm. Tornadoes are nature"s ... Jun 10, 2024 ... Tornadoes are a swirling tube of high-speed wind, called a vortex. They form on the bottom of a thunderstorm cloud and stretch from the cloud to the ground. Jul 17, 2024 ... “Violent” tornadoes, with wind speeds over 200 mph, account for less than 1% of all tornado reports. Risks from extreme weather are ... A Tornado Risk Index score and rating represent a community's relative risk for Tornados when compared to the rest of the United States. Apr 30, 2019 ... I can speak to what the differences are. Basically there are 3 types of Tornado Warnings with the Impact-Based Warnings project. 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 ... Tornadoes are violently rotating columns of air that extend from a thunderstorm to the ground. Tornadoes can destroy buildings, flip cars, and create deadly ... Tornadoes develop from severe thunderstorms in warm, moist, unstable air along and ahead of cold fronts. Such thunderstorms also may generate large hail and ...