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A widespread winter storm will continue to haul snow and ice from parts of the Midwest to the Great Lakes and Northeast into Thursday. This system has been named Winter Storm Iliana by The Weather ...
Oshkosh (/ ˈ ɒ ʃ k ɒ ʃ / ⓘ) is a city in and the county seat of Winnebago County, Wisconsin, United States, located on the western shore of Lake Winnebago.It had a population of 66,816 as of the 2020 census, making it the ninth-most populous city in Wisconsin. [4]
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Winter Storm Cora is spreading a wintry mess of snow and ice across much of the South, including Atlanta and Charlotte. On this page, you'll find maps below that will help to track the storm.
MADRE over-the-horizon radar at the NRL's Chesapeake Bay Detachment U.S. Navy Relocatable Over-the-Horizon Radar station. The most common type of OTH radar, OTH-B (backscatter), [3] uses skywave or "skip" propagation, in which shortwave radio waves are refracted off an ionized layer in the atmosphere, the ionosphere, and return to Earth some distance away.
The scale of dBZ values can be seen along the bottom of the image. dBZ is a logarithmic dimensionless technical unit used in radar.It is mostly used in weather radar, to compare the equivalent reflectivity factor (Z) of a remote object (in mm 6 per m 3) to the return of a droplet of rain with a diameter of 1 mm (1 mm 6 per m 3). [1]
The radar mile is the time it takes for a radar pulse to travel one nautical mile, reflect off a target, and return to the radar antenna. Since a nautical mile is defined as 1,852 m, then dividing this distance by the speed of light (299,792,458 m/s), and then multiplying the result by 2 yields a result of 12.36 μs in duration.
A plan position indicator (PPI) is a type of radar display that represents the radar antenna in the center of the display, with the distance from it and height above ground drawn as concentric circles. As the radar antenna rotates, a radial trace on the PPI sweeps in unison with it about the center point. It is the most common type of radar ...