• Four of the tornadoes were rated as EF-4 on the Enhanced Fujita Scale, meaning that they were violent tornadoes with winds between 166 and 200 miles per hour. (usgs.gov)
  • More than 340 people died in two days earlier this week - and the death toll is still rising - due to scores of hugely powerful tornadoes that ripped through Alabama, Tennessee, Mississippi, Kentucky, Georgia, Kentucky and Virginia. (myphillylawyer.com)
  • This week's storms were just as menacing, with "more than 211 tornadoes were reported within a few hours' span on Wednesday," reported The Christian Science Monitor . (myphillylawyer.com)
  • It's being called the worst tornado-related death toll since March 18, 1925 when 747 people were killed in one day in Missouri, Illinois and Indiana by a string of tornadoes that ravaged through those states, according to a story in The Los Angeles Times . (myphillylawyer.com)
  • Tornadoes can be detected before or as they occur through the use of Pulse-Doppler radar by recognizing patterns in velocity and reflectivity data, such as hook echoes or debris balls , as well as through the efforts of storm spotters . (wikipedia.org)
  • Most tornadoes occur in the U.S. in the spring and early summer from April through July , according to Weather.com, with most happening in May and June. (myphillylawyer.com)
  • These most costly tornado and hurricane events caused just 1,270 and 6,507 fatalities, respectively ( NOAA National Centers for Environmental Information (NCEI), 2020 ). (frontiersin.org)
  • The research to improve forecasting of major tornado activity of the National Weather Service has, since 1950, improved tornado warning lead times, reducing the numbers of tornado-related fatalities and injuries ( NSSL, 2013 ). (frontiersin.org)
  • Tornadoes come in many shapes and sizes, and they are often visible in the form of a condensation funnel originating from the base of a cumulonimbus cloud, with a cloud of rotating debris and dust beneath it. (wikipedia.org)
  • The wind of the tornado has a much wider radius than the funnel itself. (wikipedia.org)
  • for example, there is disagreement as to whether separate touchdowns of the same funnel constitute separate tornadoes. (wikipedia.org)
  • More research to further our understanding of tornado-induced wind loads and wind-borne debris effects is needed to increase confidence in its application to any tornado and any city. (frontiersin.org)
  • There has been $130 Billion (CPI-adjusted estimate) losses due to 54 "U.S. billion-dollar disaster" events (plus many thousands of less-costly events) involving tornadoes spawned by severe storm in the United States over the past 40 years (since 1981). (frontiersin.org)
  • The objective is to determine the predictive capability of an engineering-based tornado damage-assessment (ETDA) Tool using published building damage observations captured by the authors in a recent tornado. (frontiersin.org)
  • The research developed a numerical estimation model to aggregate damage that a specified tornado would cause to the residential wood-framed structures in a community. (frontiersin.org)
  • The output of the EDTA Tool is presented as series of mean damage ratios, and other statistics quantifying tornado-damage caused, plotted against distance away from the tornado vortex centerline. (frontiersin.org)
  • The paper explains the methodology of the approach and presents results comparing hindcast damage ratios against observed values of field-observations collected after a tornado strike on residential communities in Garland/Rowlett, TX. (frontiersin.org)
  • The Tool could be used by a community to model any tornado path and/or size and estimate future damage. (frontiersin.org)
  • On June 16, 2014, a tornadic thunderstorm system moved across portions of northeast Nebraska, producing 5 tornadoes. (usgs.gov)
  • All tornadoes in the Contiguous United States , 1950-2013, plotted by midpoint, highest F-scale on top, Alaska and Hawaii negligible, source NOAA Storm Prediction Center . (wikipedia.org)
  • NOAA National Weather Service Weather Forecast Office Omaha/Valley, NE (2014, June) Tornadoes in northeast Nebraska 6/16/2014. (usgs.gov)
  • But like thunderstorms, tornadoes can form any time of the year," according to Weather.com. (myphillylawyer.com)
  • According to the National Weather Service, the tornado that hit Pilger directly had a path of 18.41 miles long. (usgs.gov)
  • The ETDA Tool was developed around a Monte Carlo simulation engine, using theoretical models for tornado wind velocity and pressure drop in the tornado vortex, as well as experimentally-determined probability distribution functions for the structural resistances of eight building component systems selected to describe the structure. (frontiersin.org)
  • Keeping your family aware about tornadoes and what to do if one forms in your area can literally mean the difference between life and death. (myphillylawyer.com)
  • Other tornado-like phenomena that exist in nature include the gustnado , dust devil , fire whirl , and steam devil . (wikipedia.org)
  • The two EF-4 tornado tracks start at the bottom-middle and traveled northeast where they eventually crossed paths (middle top of the image) before they dissipated (not visible in this image). (usgs.gov)
  • These tornadoes were rare twin tornadoes that were on the ground at the same time. (usgs.gov)
  • One EF-4 tornado spun directly through Pilger, Nebraska, a small town of 350 people, leveling much of the town. (usgs.gov)
  • The most extreme tornadoes can attain wind speeds of more than 300 miles per hour (480 km/h), are more than two miles (3 km) in diameter, and stay on the ground for dozens of miles (more than 100 km). (wikipedia.org)
  • An F5 or EF5 tornado, the strongest category, rips buildings off their foundations and can deform large skyscrapers . (wikipedia.org)
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