On Sep 8, 1:57*am, wrote:
On Sun, 7 Sep 2008 14:37:02 -0700 (PDT), Weatherlawyer

What does the legend indicate? *Assumed heights? But not in minus
figures surely?
http://www.weatheroffice.gc.ca/ensem...our=0&Day=0&Ru...
indicates a col. The 1016 mb lines in particular indicate that there
is a lot of vorticity or inversion so maybe it was mist.

How is it that the 1016 mb line indicates vorticity... *be it positive
or negative?

An inversion, *if strong enough, will enhance the presence of ground
clutter on a radar due to rf ducting.

As far as mist, fog, drizzle or any other weather was present, you
would need to see the local weather observations at the time.

Roger

I don't know.

When there are no storms in the tropics and no quakes spiking off
Alaska and the oceans are settled with a 1016 line the outer ring at
the coastlines, you get a packet of tornadic stuff.

Which is no more than saying:
If it ain't unsettled, it's going to be.

Nothing like this at the moment:
https://www.fnmoc.navy.mil/efs/dynam...pac_gale_0.gif
(Wants a cookie from another page first then paste it in or click from
another tab.)

Try these:
https://www.fnmoc.navy.mil/public/
https://www.fnmoc.navy.mil/efs/dynam...atl_gale_0.gif