Shower lanes

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xmetman

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Jul 2, 2019, 12:45:54 PM7/2/19
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I know I've got far too much time on my hands but I'm trying to keep out of the way of the decorating that's going on around me at the moment.


With the showers of the last couple of days I couldn't help but think they tend to followed a predefined track in a northwesterly across Scotland.


It sounds pretty obvious that they would, because you get showers in a NW'ly through the Cheshire gap, and I seem to remember showers coming down Wensleydale when the gradient was 270° at Leeming in North Yorkshire.


It's almost certainly all random and down to the amplitude of the flow across the mountains or something, rather than the lines and arrows I've arbitrarily drawn on these radar accumulations maps.


You would have thought that there aren't too many gaps in the NW Highlands, but they aren't a continuous wall, and there are a number of broad straths or glens that run through them, in fact Strathpeffer sits at the eastern end of one that runs northwest towards Ullapool which ties up rather nicely with one of the shower lines I've drawn. I'm certainly going to keep an eye out in future for the alignment of precipitation in both convective and dynamic situations.



2019-07-02_171922.jpg



2019-07-02_171508.jpg




xmetman

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Jul 3, 2019, 8:15:38 AM7/3/19
to Weather and Climate
Not so much shower lanes but rain shadow effect today....


2019-07-03_131110.jpg


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