Tom,
Have you contacted the nearest airports? They can usually provide you
with wind roses which are simple images showing the prevailing winds and
their velocity over the course of a year month by month. We've done many
designs in various regions and had no trouble getting this data from the
airports.
These are a little different from the ones I am used to in that they
only cover a seven month period but with 16 indicators over that time.
The usual is for a whole year and 12 indicators, i.e. one / month.
OK, this may seem dumb, and maybe I'm just not entering the right
search terms.... can anyone point me to a source for a map of
prevailing wind patterns (particularly upstate NY)? Seems they've
got to be out there on the internet somewhere, but darned if I can
find one (that works or shows anything, that is....)
Thanks