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Cloud base weirdness

From build 3044 the development baton passed to Mark Crossley. Mark has been responsible for all the Builds since. He has made the code available on GitHub. It is Mark's hope that others will join in this development, but at the very least he welcomes your ideas for future developments (see Cumulus MX Development suggestions).

Moderator: mcrossley

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Mapantz
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Cloud base weirdness

Post by Mapantz »

I have just upgraded to the latest version of CMX, upon running it again, the cloud base value spiked to 5295 ft before going back to normal. I closed CMX and reopened it to see if it was a one off, but it did the same thing with the same value.

No biggie, just thought it was weird..

https://postimg.cc/ZC9ggb4K
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freddie
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Re: Cloud base weirdness

Post by freddie »

Are your temperature and dew point values okay around start-up? The figure 5295 suggests a temperature/dew point difference of about 13.2. Your current air temperature is close to 13.2. Just an observation :)
Freddie
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Mapantz
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Re: Cloud base weirdness

Post by Mapantz »

freddie wrote: Wed 11 May 2022 1:08 pm Are your temperature and dew point values okay around start-up? The figure 5295 suggests a temperature/dew point difference of about 13.2. Your current air temperature is close to 13.2. Just an observation :)
No iffy values from temp/humidity/dew point.

I saw the value appear in the real time data, which was also logged to SQL.
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mcrossley
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Re: Cloud base weirdness

Post by mcrossley »

Looks like it may be using the dewpoint value before it is initialised from the first data at start-up and thus zero.

Which station type are you using, still on the WLL? (I'll check that one first)
Mapantz
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Re: Cloud base weirdness

Post by Mapantz »

Yep - still on the trusty WLL :)
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mcrossley
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Re: Cloud base weirdness

Post by mcrossley »

Found the issue, it applies to a few stations - I'll have to split up a mega temperature function and move all the bits associated with dewpoint out to their own code. All the stations will need changing to accommodate that, but it should be done - I see some beta testing for the next release!
Mapantz
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Re: Cloud base weirdness

Post by Mapantz »

Thanks Mark!
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ConligWX
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Re: Cloud base weirdness

Post by ConligWX »

nice find :clap:
Regards Simon

https://www.conligwx.org - @conligwx
Davis Vantage Pro2 Plus with Daytime FARS • WeatherLink Live • Davis AirLink • PurpleAir •

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