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Christopher Low

Altitude of cloud base in wet weather

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I am still having trouble lifting the cloud base to a greater altitude during wet weather. I would like to be able to see the terrain up to around 4000 feet across the entire region, but the suggestion that I was given some time ago does not seem to work. I was told to increase the value of the "sky_RainOpticalDepthHW..." statement in the flt3.cfg file.The problem is that the altitude of the cloud base varies throughout the region. With my saved Seattle Rain weather file selected, I can see the terrain up to around 6000 feet directly above Tacoma Narrows, but this drops to less than 2000 feet as I approach Asplund Field. I would like it to be around 4000 feet across the entire region.Can anyone help ?Chris Low.

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Chris,If you put your weather file hear or send it to me direct, I willhav a look at it and see if I can lift the cloud base by 2000 feet.But I carnt garanty the resalt will giv you what you want.glidernut.:-wave

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There may be more to this but keep in mind that the airport elevations are different. Tacoma Narrows is at 229 ft and Asplund at 757 ft. Thus, with a low ceiling you'll see Tacoma while the hilly terrain down south will be shrouded in clouds.Hans Petter

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Hans,I am well aware of the elevation differences :-) I also understand that the altitude of the cloud base is likely to change from place to place. I was simply wondering if there is an easy way to define this altitude, or whether it is entirely random.Chris Low.

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Chris,In the weather file you sent me there are 4 cloud banks, which makes it a bit mor complicated than I antisipated. I just discuvered that each cloud bank can not be edatid simply by changeing 1 or more of itsperamiters bicous when the file is saved the order of the changes changes so that you end upwith the rong cloud bank having been changed.The only way I could make the nesosery changees to the cloud banks was to make a note of allthe cloud banks peramiters and creeate them as new.Anyway, I did it, I rased all 4 cloud bank bases by 2000.Ps I aso rased all 4 cloud bank tops by 2000 as well, it wouldent do to hav the bases higherthan the tops would it?That reminds me of a conumdram, Qestion) what is it that has its base at the top?Anser) a horses tale. Anyway hear is your weather file, let me know if it did the trik.glidernut.:-wave

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Oops! Id forget my head if it wernt scrood on.

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Thanks, John. I will try and test this tonight if I have time. I am going on holiday to Scotland for 9 days tomorrow, so my schedule could be tight ;-)Chris Low.

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Wach your self up there in Scotland, thay are an odd bunch.I wouldant trust anyone whereing a scert.

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Thanks for the advice, John. I was thinking about packing a few skirts, but I won't bother now :-lolChris Low.

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