A Comparison between Multi-Radar/Multi-Sensor System (MRMS) Rotation Tracks and Tornadoes over southern Georgia during the 2122 January 2017 Outbreak using the Weather Archive and Visualization Environment (WAVE)
Pat Spoden, NOAA/NWS Paducah, KY, Paducah, KY
Willaim Rasch, NOAA/NWS Sacramento
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Abstract
During the 2122 January 2017 tornado outbreaks, 23 tornadoes struck southern Georgia. They produced damage ratings from EF0 to EF3 and resulted in at least 16 fatalities and more than 40 injuries. Multi-Radar Multi-Sensor (MRMS) data became available to NWS forecast offices in 2014. One of the many products available is rotation tracks. Rotation tracks are defined as the maximum azimuthal shear (rotation divided by diameter in units of s-1) in the low-level (02 km) or midlevel (36 km) AGL layer. This presentation will focus primarily on the 02-km rotation track data. Comparisons will be made with location of tornadoes and MRMS rotation track shear values for every 10-min interval when tornadoes occurred on both the 21st and 22nd of January using WAVE. The goal of this presentation is to assess the operational usefulness of the rotation track product in this event in terms of potential lead time for the tornadoes and to demonstrate the training opportunities in WAVE. Integrating storm data information into archived model and radar data will be a game changer in the training world.