Lake-band panorama taken looking south (left) to northwest (right). Click to enlarge.
The view from space, showing the narrow, isolated nature of the band
Source: College of DuPage
The loop below shows the development. Note in particular the surge of northerly or northeasterly flow along the northern Wasatch Front and into the North Salt Lake City/Bountiful Area as the band forms. What is chicken and what is egg is unclear, but we have seen similar surges in other events, but don't understand their cause or their role in lake-effect events.