This has been mentioned before in some context and it is a very good point.
The technical ones on here will know a lot more than I do.
There are certain atmospheric conditions in which sound is amplified and
travels miles. This is one example and sounds like a good one.

Gavin.


"Michael Mcneil" wrote in message
news:4babb5029c7e95329d17eef57815ddaa.45219@mygate .mailgate.org...

Yesterday with clear skies and fluffy clouds and today with almost full
overcast and a gentle breeze, I can hear soaring noises almost like a
street sweeping machine patrolling nearby.

I can't believe it's an inversion but the only explanation I can come up
with is something channeling the sound of passing airliners.

They are frequently seen overhead flying south presumably from
Manchester Airport. I can't say I have heard them so clearly as
yesterday and today.

If that's what it is.

I am too far from the motorway, the nearest river is too small and there
hasn't been enough rain to feed it, what else could it be?

I noticed it from 07:30 till late last night and from when I woke early
this morning.


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