In message ,
Trevor Harley writes
3. Are there any good online graphic representations of what the
atmosphere is doing, and particularly what the upper-level winds, such
as the jet stream are doing? I have the MeteoEarth app, but it seems
very limited to me. I can understand why people might not want such
data too widely available.

For the jet-stream, from the GFS forecasts the first snapshot is for
T=0, and the charts available include the winds at 200, 300 and 500 mb.
I'm not quite sure how high the jetsream is in terms of atmospheric
pressure, but I imagine that one of those will cover it.
--
John Hall
"Hegel was right when he said that we learn from history
that man can never learn anything from history."
George Bernard Shaw (1856-1950)