To estimate an overall severe weather direction, speed, and confidence level. If the severe weather’s path will cross over the radar site, an ETA (Estimated Time of Arrival) will be generated co-located with the severe weather on the radar screen.

The setup file (strak.dat) that controls the parameters of the STRAK feature can be found on the following page.

The large white arrow indicates the direction of the storm. The storm speed is indicated above the arrow in yellow. The red indicator underneath the white arrow is the confidence level. The longer a storm stays on the same path, the red confidence indicator will go up.  An ETA has been generated for one of the severe weather events because the projected path will cross the radar site.