The NSSL Damaging Downburst Prediction and Detection Algorithm (DDPDA)

The NSSL DDPDA was initially developed in 1994, and has since been used in PoC tests in Phoenix (1994 and 1995) and Atlanta (1995). The algorithm is being developed to fill a void in current suite of WSR-88D algorithms, since the WSR-88D system presently does not have the capability to detect or predict straight-line damaging wind events.

Three types of output are produced by the algorithm. The first type is low-altitude divergence signature detection information, the second is downburst prediction information, and the third is the trend of downburst precursor information. The current version of the algorithm has been developed to focus on severe wind events produced by isolated cells.

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