Sorry, only use hPa here so the obvious nonsense inHg value was lost on me.
WeeWX is flexible enough that you change whatever you want to display on your web page, you can use another field or recalculate using whatever you like, it's just a case of altering the appropriate template. Similarly, you can change what is sent to WU, WeeWX is coded to send field barometer, to change that you need to dig into the code and your changes would likely not be safe across an upgrade. In terms of solutions, one obvious check is that you have your station altitude set correctly in weewx.conf. You are after the altitude setting under [Station]. If altitude is set correctly then the solution is in the driver. The WS-2813 driver emits pressure and WeeWX calculates barometer and altitude. Have you run WeeWX directly <http://weewx.com/docs/usersguide.htm#Running_directly> to see what pressures are being include in loop packet and archive records. You should see all three pressures included as the data sent to console is after WeeWX has augmented the packet/record with whatever derived fields it can. Unfortunately it looks like the WS-2813 driver cannot be run stand alone which would be handy to see exactly what data is coming from the driver (as opposed to running WeeWX directly which include driver and WeeWX calculated fields). You can driver only data by disabling the WeeWX StdWXCalculate service that calculates the additional fields. To disable StdWXCalculate edit weewx.conf and locate the process_services setting under [Engine] [[Services]]. It should look something like this: process_services = weewx.engine.StdConvert, weewx.engine.StdCalibrate, weewx .engine.StdQC, weewx.wxservices.StdWXCalculate just put a # in front of the StdWXCalculate service as follows: process_services = weewx.engine.StdConvert, weewx.engine.StdCalibrate, weewx .engine.StdQC #, weewx.wxservices.StdWXCalculate save and stop WeeWX if running and then run directly <http://weewx.com/docs/usersguide.htm#Running_directly> again. This time you should see no derived fields added and what you see should be coming from the driver. What pressure field is provide and if it is pressure is it indeed station pressure? If this is the case then the issue lies elsewhere, if not then the driver needs some scrutiny. Gary On Tuesday, 11 February 2020 01:59:28 UTC+10, Dan Blanchard wrote: > > Agreed. If this is the case, can I configure weewx to show a different > pressure? If so, how do I do that? > > On Monday, February 10, 2020 at 6:00:07 AM UTC-8, ln77 wrote: >> >> 33” is clearly too high for the barometric pressure. It is within >> spitting distance of what you would get if the pressure is corrected for >> your 2300’ elevation twice. Maybe the station is giving the corrected >> pressure but weewx is configured to think it’s the uncorrected pressure? >> >> -Les >> >> >> On Feb 9, 2020, at 6:00 PM, Dan Blanchard <[email protected]> wrote: >> >> >> OK, let me absorb this information a bit and see what I can figure out. >> >> On Sunday, February 9, 2020 at 4:56:30 PM UTC-8, gjr80 wrote: >>> >>> On Monday, 10 February 2020 10:35:37 UTC+10, Dan Blanchard wrote: >>>> >>>> My station labels it as 'Pressure inHg' which is currently 30.30 and >>>> matches others in the area. >>>> >>> >>> I presume you mean the station display. The use of 'Pressure' is >>> consistent with it being station pressure but it could mean anything, would >>> not be the first time weather station hardware manufacturers have been >>> vague, liberal with the truth or just wrong. >>> >>> So I am a bit confused between what you said about barometric pressure >>>> vs. raw pressure. >>>> >>> >>> Did you read the wiki article about the three different pressures that >>> WeeWX uses? Could you explain what it is that confuses you? >>> >>> >>>> Ultimately, is there a fix for me? Can I make some kind of adjustment? >>>> >>> >>> Not sure what you are trying to fix, if the issue is that you want >>> everything to display the same value then sure there are changes you can >>> make. Since you can't change what the station hardware displays you need to >>> change what WeeWX and WU displays. Changing what WeeWX displays is easy, as >>> I said its a simple change to a template. Changing what WU displays is more >>> complex and involves changing the WeeWX WU uploader to upload WeeWX field >>> pressure instead of field barometer. If you go down this path you need >>> to accept a few things. Firstly, your WU data will be inaccurate (it >>> expects barometric pressure and you will be sending it station pressure). >>> Secondly, your changes to the template will be safe but your changes to the >>> WU uploader will likely be overwritten each time you upgrade WeeWX. >>> >>> I am not familiar with the WS-2813 so do not know if there is any >>> ability to change what pressure it displays, I suspect there will not be a >>> means though. >>> >>> At the end of the day you might be displaying a different value to a lot >>> of other folks, doesn't make them right and you wrong though. >>> >>> Gary >>> >>> >>> >>> >>> >>> >>>> On Sunday, February 9, 2020 at 4:29:42 PM UTC-8, gjr80 wrote: >>>>> >>>>> Slightly, but still apples and oranges. By default WeeWX displays >>>>> barometric pressure so WeeWX and WU displaying the same 'pressure' is >>>>> expected behaviour. The 'pressure' displayed by WeeWX can be changed with >>>>> a >>>>> simple change to a template, unfortunately what cannot be changed is what >>>>> WU expects and (usually) what your station hardware displays. >>>>> >>>>> Gary >>>>> >>>> -- >> You received this message because you are subscribed to the Google Groups >> "weewx-user" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/weewx-user/c43f41d0-2280-4c62-b425-4ba19baa3f21%40googlegroups.com >> >> <https://groups.google.com/d/msgid/weewx-user/c43f41d0-2280-4c62-b425-4ba19baa3f21%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> >> -- You received this message because you are subscribed to the Google Groups "weewx-user" group. 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