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Get the San Jose, CA local weather forecast by the hour and the next 10 days. ... Atmospheric river puts California on alert for life-threatening floods, debris flows from relentless rain.
Get the San Jose, CA local weather forecast by the hour and the next 10 days. ... Slick roads caused by a winter storm pummeling the Great Lakes area led to a box truck smashing into multiple ...
Get the San Jose, CA local weather forecast by the hour and the next 10 days. ... San Jose, CA Add ... businesses and roads in the Greek tourist island of Rhodes were covered in mud and debris on ...
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).
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 multiple reflections of the radar beam causing the hail spike. Generally known as hail spikes, these are the result of energy from the radar hitting hail, very heavy rain, or in extreme cases, debris being lofted by a tornado, and being reflected to the ground, where they reflect back to the hail and then to the radar as in the image on the left. [1]
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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.
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