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A tornadic debris signature (TDS), often colloquially referred to as a debris ball, [1] is an area of high reflectivity on weather radar caused by debris lofting into the air, usually associated with a tornado. [1] [2] A TDS may also be indicated by dual-polarization radar products, designated as a polarimetric tornado debris signature (PTDS).
Nonmeteorological reflectors co-located with a couplet, can confirm that a tornado has likely occurred and lofted debris. An area of high reflectivity, or debris ball, may also be visible on the end of the hook. Either the polarimetric data or debris ball are formally known as the tornado debris signature (TDS).
When the rain starts to fall, people immediately look to the weather radar to see how long it will last. But when severe weather strikes, meteorologists can use this technology to pinpoint the ...
An example of a tornado warning polygon issued by the National Weather Service. A tornado warning (SAME code: TOR) is a public warning that is issued by weather forecasting agencies to an area in the direct path of a tornado, or a severe thunderstorm capable of producing one, and advises individuals in that area to take cover.
A radar-confirmed tornado struck near Liverpool and Alvin, Texas, located 30 miles south of Houston. At least one school was damaged near Alvin, Texas , where damage and debris were strewn across ...
All debris for collection should be placed curbside between the sidewalk or property line and the curb. Keep vegetative debris loose and unbagged at the curb. Only vegetative disaster storm debris ...
Mobile doppler weather radars have been used on dozens of scientific and academic research projects from their invention in the late 1900s. [1] One problems facing meteorological researchers was the fact that mesonets and other ground-based observation methods were being deployed too slow in order to accurately measure and study high-impact atmospheric phenomena. [1]
The tornado caused minor damage to windows and siding and tore the plastic roof off a small shelter. Trees were snapped and uprooted. A tornado debris signature was evident on radar. [34] EF1 Poolesville to SW of Germantown: Montgomery: MD