Exactly what is a Norlun Trough and how do you forecast weather associated with it?
Video: As Norlun Trough closes in, best estimates may fall short of expectations for accuracy

Video: Norlun Trough to focus locally heavy snow on some Northeast communities Friday and Saturday

A trough - or weak disturbance in the atmosphere - will interact with upper atmosphere cold air to produce localized bands of heavy snow Friday and Saturday in the Northeast United States.  Though you can see my broadcast with my best early estimate on this complex event below, I cordially invite you to find out more about what a Norlun Trough is by clicking here, or view my latest video Technical Discussion on my Weather Analysis Page.

Notes From the Slopes:



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