I really do not see how you can have a meaningful gust value from readings submitted every few seconds!! I see from the Davis comms protocol the gust values are in LOOP2 packets and the smallest appears to be a 2 minute gust value.
Setting debug=1 may shed more light on what is actually being sent to WU On Monday, 29 July 2019 09:24:19 UTC+3, Praveen Chandrasekaran wrote: > > My weather station is Davis Vantage Vue. I believe it never emits partial > packets. > > On Friday, 26 July 2019 15:02:51 UTC+5:30, Andrew Milner wrote: >> >> i doubt it very much. what weather station do you have? >> changing the rf frequency changes the upload to wu interval but the >> station will still be being polled as before. Does the station provide the >> gust value in the LOOP data? If not then the gust value is an artificial >> one created by weewx from loop records wind speeds received. If your >> station provides partial packets as LOOP data you could always try and set >> the wu flag that set specifies windGust must be present before rf is >> uploaded >> >> On Friday, 26 July 2019 10:42:14 UTC+3, Praveen Chandrasekaran wrote: >>> >>> If I set rtfreq to a higher value like 5 seconds, should that resolve >>> the issue? >>> >>> On Fri, 26 Jul 2019 at 11:57, Andrew Milner <[email protected]> >>> wrote: >>> >>>> if from rf it has no gusts it cannot graph them. non rf sites will >>>> provide a gust value per archive interval. who knows what wu do when they >>>> receive both rf and archive record data!! The tables may well create an >>>> artificial gust value from rf speeds, but again who knows what wu use to >>>> create the graphs!! >>>> >>>> >>>> >>>> On Friday, 26 July 2019 09:01:30 UTC+3, Praveen Chandrasekaran wrote: >>>>> >>>>> The table somehow has it right. The graph alone is wrong. >>>>> >>>>> On Fri, 26 Jul 2019 at 11:29, Andrew Milner <[email protected]> >>>>> wrote: >>>>> >>>>>> I would suspect WU ignore windgust on rapidfire because you need a >>>>>> sustained period of I think 3 seconds for the gust to count as a gust in >>>>>> metereological definitions - and the rf interval is probably too short - >>>>>> so >>>>>> gust will always equal speed in rf situations. >>>>>> >>>>>> On Friday, 26 July 2019 08:26:49 UTC+3, Praveen Chandrasekaran wrote: >>>>>>> >>>>>>> Related wxforum post: >>>>>>> >>>>>>> https://www.wxforum.net/index.php?topic=36611.msg386071#msg386071 >>>>>>> >>>>>>> >>>>>>> On Friday, 26 July 2019 10:45:52 UTC+5:30, Praveen Chandrasekaran >>>>>>> wrote: >>>>>>>> >>>>>>>> Hi, >>>>>>>> >>>>>>>> I am seeing that on stations with rapdifire, WU is not >>>>>>>> differentiating wind speed and wind gust in graph correctly. However >>>>>>>> in >>>>>>>> stations without rapidfire it is fine. >>>>>>>> >>>>>>>> Example my station with rapidfire: >>>>>>>> >>>>>>>> https://www.wunderground.com/dashboard/pws/IBANGALO9 >>>>>>>> >>>>>>>> Another station without rapidfire: >>>>>>>> >>>>>>>> https://www.wunderground.com/dashboard/pws/IMUMBAI16 >>>>>>>> >>>>>>>> Is this issue arising from weewx by any chance? >>>>>>>> >>>>>>>> Regards, >>>>>>>> Praveen >>>>>>>> >>>>>>> -- >>>>>> You received this message because you are subscribed to a topic in >>>>>> the Google Groups "weewx-user" group. >>>>>> To unsubscribe from this topic, visit >>>>>> https://groups.google.com/d/topic/weewx-user/E5uzJiv_ThY/unsubscribe. >>>>>> To unsubscribe from this group and all its topics, send an email to >>>>>> [email protected]. >>>>>> To view this discussion on the web visit >>>>>> https://groups.google.com/d/msgid/weewx-user/51caf745-7385-40f9-ad35-81cfed29553e%40googlegroups.com >>>>>> >>>>>> <https://groups.google.com/d/msgid/weewx-user/51caf745-7385-40f9-ad35-81cfed29553e%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>>> . >>>>>> >>>>> -- >>>> You received this message because you are subscribed to a topic in the >>>> Google Groups "weewx-user" group. >>>> To unsubscribe from this topic, visit >>>> https://groups.google.com/d/topic/weewx-user/E5uzJiv_ThY/unsubscribe. >>>> To unsubscribe from this group and all its topics, send an email to >>>> [email protected]. >>>> To view this discussion on the web visit >>>> https://groups.google.com/d/msgid/weewx-user/e1c86274-2f2a-4005-a3e3-8ac0d9028b66%40googlegroups.com >>>> >>>> <https://groups.google.com/d/msgid/weewx-user/e1c86274-2f2a-4005-a3e3-8ac0d9028b66%40googlegroups.com?utm_medium=email&utm_source=footer> >>>> . >>>> >>> -- 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/7d2e07d8-d98a-41b3-a3b4-0c9cdcea6f25%40googlegroups.com.
