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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).
Tornadic signatures are indicated by a cyclonic inbound-outbound velocity couplet, where strong winds flowing in one direction and strong winds flowing in the opposite direction are occurring in very close proximity. The algorithm for this is the tornadic vortex signature (TVS) or the tornado detection algorithm (TDA). TVS is then an extremely ...
The basic mechanism of debris fallout is debris lofted by a tornado's updraft winds high into the atmosphere. [4] Charles E. Anderson completed the first study focusing on debris fallout on the F5 1984 Barneveld tornado, which produced a large survey revealing a trail of paper debris as wide as 23 mi (37 km) at 110 mi (180 km) from Barneveld and a roughly 85 mi (137 km) long path of heavy ...
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 ...
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
Tornado Debris Project (TDP) Tornado debris signature ( TDS ) – A more formal term for a debris ball . Tornado emergency – Enhanced wording used by the U.S. National Weather Service in a tornado warning or severe weather statement when a large, intense tornado is expected to impact a highly populated area (traverse a large city or dense ...
Since the tornado came off the water, there was no way to determine if the track was longer than analyzed. Additionally, the entire path of the tornado was confirmed via high resolution satellite data and a radar tornadic debris signature since the area was inaccessible to ground surveys. [33] EF1 WSW of Plain Dealing: Bossier: LA
To dispose of debris and waste from the tornado's damage, Sharkey County established a burn site on the town's outskirts. On April 10 alone, 260 truckloads of debris made the trip to the burn site. [41] Influencer and YouTuber Ryan Hall, Y'all raised $120,000 through social media to give generators out after the storm. [43]