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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).
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.
The average person and weather enthusiast can follow along on social media with reports in real-time as volatile weather unfolds -- and terms like "radar-confirmed tornado" are often thrown out by ...
The NWS had issued a tornado warning at 3:41 p.m. EST for those locations through 4:15 p.m. ... At the same time, a tornado debris signature appeared on radar near Lawrence Township.
A hook echo is a pendant or hook-shaped weather radar signature as part of some supercell thunderstorms. It is found in the lower portions of a storm as air and precipitation flow into a mesocyclone, resulting in a curved feature of reflectivity. The echo is produced by rain, hail, or debris being wrapped around the supercell. [1]
The Weather Channel's Jim Cantore tweeted radar of what he said were two radar-indicated tornadoes in the Tallahassee area. The tornado warning is set to end at 7:30 a.m. while a sever thunderstom ...
High-resolution satellite imagery showed extensive tree damage in an inaccessible area that aligned with a tornadic debris signature on radar. Some trees were able to be surveyed, allowing for a rating. [20] EF1 SW of Gillsburg to NE of Osyka: Amite, Pike: MS