On Wed, 28 Feb 2007 09:08:46 -0800, Jay Honeck wrote:

Now, of course, there were an unknown number of marginal VFR conditions in
the data set, but these results pretty well confirm my (non-scientific)
observation that showed us canceling just a handful of flights each year
due to weather, and a truly tiny set that were canceled due to "soft IFR"
conditions that we would feel safe flying Atlas in.

In fact, this does no such thing. That soft IFR could be 94% given the
data you've provided.

Can/would your friend provide the raw data? It would be very interesting
to actually determine the percentages of MVFR, SIFR, IFR, and LIFR. I'm
tempted to see if I can access that same data at the local ASOS.

This would be a fun little analysis, and I don't think the program to do
this would be more than a few minutes of work (the hardest part
possibly being parsing the data, depending upon the format in which it is
provided).

It would also be terrific if he could provide the means whereby he
acquired the data. That might be reusable at other airports.

This could be fun, and we've enough people here that we could get the data
for a lot of different airports.

- Andrew