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Animated radar loop (left, storm-relative velocity; right, reflectivity) of the nearly stationary supercell thunderstorm that spawned the EF3 tornado from 5:36–7:33 p.m. CDT (2236–0033 UTC). A large, very slow-moving, and erratic tornado remained on the ground for just over an hour as it executed a cyclonic loop in Ottawa County south of ...
Mount Vernon is a city in and the county seat of Jefferson County, Illinois, United States. [4] The population was 14,600 at the 2020 census . Mount Vernon is the principal city of the Mount Vernon Micropolitan Statistical Area , which includes all of Jefferson and Hamilton counties.
Weather radar in Norman, Oklahoma with rainshaft Weather (WF44) radar dish University of Oklahoma OU-PRIME C-band, polarimetric, weather radar during construction. Weather radar, also called weather surveillance radar (WSR) and Doppler weather radar, is a type of radar used to locate precipitation, calculate its motion, and estimate its type (rain, snow, hail etc.).
Illinois's FIPS state code is 17 and its postal abbreviation is IL. What is now Illinois was claimed as part of Illinois County, Virginia, between 1778 and 1782. Modern-day county formation dates to 1790 when the area was part of the Northwest Territory; two counties—St. Clair and Knox—were created at that time.
The National Weather Service in Topeka said quarter-size hail and wind gusts up to 60 mph (96 kph) were expected across northern Kansas overnight until 6 a.m. on Thursda Storm carrying massive ...
A mesocyclone is a meso-gamma mesoscale (or storm scale) region of rotation , typically around 2 to 6 mi (3.2 to 9.7 km) in diameter, most often noticed on radar within thunderstorms. In the Northern Hemisphere , it is usually located in the right rear flank (back edge with respect to direction of movement) of a supercell , or often on the ...
The final tornado in Illinois of the outbreak moved through Jefferson County, killing 3 people and damaging crops and other structures at EF3 intensity. [8] April 29, 1909 – A violent F4 tornado tore through Saline and Gallatin counties, killing five people and causing heavy damage in Texas City. [11] The tornado had a maximum width of 200 ...
List of census-designated places in Illinois; List of cities in Illinois; List of Illinois townships; List of towns and villages in Illinois; List of counties in Illinois; List of precincts in Illinois