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  2. VORTEX projects - Wikipedia

    en.wikipedia.org/wiki/VORTEX_projects

    Date: 1994 and 1995: Location: Tornado Alley: Also known as: Verification of the Origins of Rotation in Tornadoes Experiment 1: Outcome: Documented an entire tornado, which, in conjunction with deployment of the NEXRAD system, helped the National Weather Service to provide severe weather warnings with a thirteen-minute lead time, and reduce false alarms by ten percent.

  3. Vortex engine - Wikipedia

    en.wikipedia.org/wiki/Vortex_engine

    To manage safety and wear of the arena (2), the planned maximum speed of the vortex base (33) is near 3 m/s (10 ft/s). The resulting vortex should resemble a large, slow dust-devil of water-mist more than a violent tornado. In uninhabited areas, faster speeds might be permitted so the vortex can survive in faster ambient winds.

  4. Weather modification - Wikipedia

    en.wikipedia.org/wiki/Weather_modification

    Weather modification is the act of intentionally manipulating or altering the weather.The most common form of weather modification is cloud seeding, which increases rainfall or snowfall, usually for the purpose of increasing the local water supply. [1]

  5. 10 types of tornadoes that occur in the US - AOL

    www.aol.com/weather/10-types-tornadoes-occur-us...

    Some of the most notorious twisters in U.S. history were wedge tornadoes, including the EF5 that leveled Joplin, Missouri, on May 22, 2011, and the El Reno tornado, which was a jaw-dropping 2.6 ...

  6. Severe thunderstorms could generate tornado threat around ...

    www.aol.com/severe-thunderstorms-could-generate...

    The system could spawn tornadoes as it passes through portions of Michigan and the Canadian province of Ontario, AccuWeather meteorologists warn. "The storm is unusually strong for summer ...

  7. List of Storm Prediction Center mesoscale discussions on ...

    en.wikipedia.org/wiki/List_of_Storm_Prediction...

    This is a list of mesoscale discussions concerning specific ongoing tornadoes. Convective mesoscale discussions are issued by the National Oceanic and Atmospheric Administration’s Storm Prediction Center based on the National Weather Center in Norman, Oklahoma.

  8. Emergency Alert System - Wikipedia

    en.wikipedia.org/wiki/Emergency_Alert_System

    The National Public Warning System, also known as the Primary Entry Point (PEP) stations, is a network of 77 radio stations that are, in coordination with FEMA, used to originate emergency alert and warning information to the public before, during, and after incidents and disasters.

  9. Tornado - Wikipedia

    en.wikipedia.org/wiki/Tornado

    However, tornadoes are capable of both much shorter and much longer damage paths: one tornado was reported to have a damage path only 7 feet (2.1 m) long, while the record-holding tornado for path length—the Tri-State Tornado, which affected parts of Missouri, Illinois, and Indiana on March 18, 1925—was on the ground continuously for 219 ...