- Satellite Imagery
snowbands, formed on northeast winds, exhibit a feature called "parallel
roll convection". The bands look like numerous narrow cloud streets
or fingers extending off Lake Ontario. A typical drive along Route
104, which parallels the south shore of the Lake will take you in and out
of heavy snowbursts, sunny skies one minute, snow the next! You can
also see a higher altitude (non lake-effect) cloud running east-west along
the south shore of the Lake. One reason you can tell it's higher
is that it is actually casting a shadow (the dark area to the north of
the cloud) running from Rochester to Oswego.
it's a bit tough to see, you can pick out the bands north of Buffalo as
northeast-southwest red streamers. The large area to the south of
Buffalo is associated with a cloud shield from the Low that is moving north
through the Ohio Valley.