Octane Speed/Direction Severe vs Normal Thunderstorm Posted in OCTANE Speed Sandwich, SPG2023 on May 22, 2023 by Kevin Thiel. If we look at the top two panels you will see a line of storms. The northern storms have small differences in wind and speed difference (green/light blue for speed and yellow and green for direction). However one of the thunderstorms to the south stick out. It has must stronger difference in wind speed (3m/s vs 16m/s) and direction (180 degrees vs 280 degrees). At the time of this image only the southern storm was severe while the northern storms were below severe. I feel this is a great example to see how you can use OCTANE flow to spot the strongest storm in a line of developing storms. -Thunderstruck