The are 6 days in 2023 that are recognizable. Look at the daily/Weekly plots and how they look like. It should be possible to regenerate them, if you don't have any snapshots. For me, this looks like a classic upcast/valley wind graph. Tom Keffer schrieb am Dienstag, 12. Dezember 2023 um 00:25:48 UTC+1:
> I don't have an answer for that. It could be that the winds out of the SW > quadrant are not very strong, so they don't contribute much to the daily > average, but I'm theorizing. That's where a 2-d histogram would help. > > I've looked through the algorithm twice, following the calculating in the > debugger, and it all works the way it should. > > On Mon, Dec 11, 2023 at 2:25 PM Rob Cranfill <robcr...@gmail.com> wrote: > >> That's the thing - NONE of the daily or weekly graphs show this >> near-total lack of wind from the 180-360 direction. Here's a recent daily: >> >> [image: image.png] >> >> and a weekly: >> [image: image.png] >> >> monthly: >> [image: image.png] >> >> yearly: >> [image: image.png] >> >> It doesn't seem so odd if you look at each graph in turn, but if you just >> look at the yearly it seems quite odd. But again, I guess that's just cuz >> the graph is, necessarily, highly simplified. >> >> </rob> >> >> >> On Mon, Dec 11, 2023 at 7:28 AM Tom Keffer <tke...@gmail.com> wrote: >> >>> One thing I would suggest: make sure the wind direction vane on your >>> VantageVue is turning freely. It could be stuck in the NE position! >>> >>> On Sun, Dec 10, 2023 at 7:20 PM Rob Cranfill <robcr...@gmail.com> wrote: >>> >>>> Thanks for looking into this. I'm glad to hear it's not a bug! :-) I >>>> can imagine it's hard to portray the subtleties of a year's worth of data >>>> in one graph. Thanks for all your work! >>>> >>>> </rob> >>>> >>>> >>>> On Sun, Dec 10, 2023 at 7:15 AM Tom Keffer <tke...@gmail.com> wrote: >>>> >>>>> Rob sent me a copy of his database, and I've had a chance to look at >>>>> it. >>>>> >>>>> Everything seems to be working properly. It's just that he has a lot >>>>> of wind from the NE. Take a look at the date 3-Dec-2022, which is >>>>> typical. >>>>> Here's a histogram of wind direction. Note that this is just windDir, and >>>>> it is not being weighted by windSpeed, which would require a 2-d >>>>> histogram. >>>>> Don't know how to do that in Excel. >>>>> >>>>> [image: image.png] >>>>> >>>>> The vast majority of directions are in the (0,15) range. WeeWX >>>>> calculated the vector wind direction for this date as 28.9º, which seems >>>>> about right. >>>>> >>>>> -tk >>>>> >>>>> On Tue, Dec 5, 2023 at 1:23 PM vince <vince...@gmail.com> wrote: >>>>> >>>>>> Rob - I'm in Federal Way a mile or so south of Redondo and my graphs >>>>>> 'do' line up with our prevailing winds here that tend to be from the SW >>>>>> in >>>>>> this location. We rarely get wind from the NNE-SE directions. It >>>>>> either >>>>>> comes off the Sound in the Port of Tacoma or from the SW from Browns >>>>>> Point. Occasionally from the NW through a slot in the trees from the >>>>>> water >>>>>> next to Redondo but not too often. >>>>>> >>>>>> Your graphs just look a bit bouncy to me which might be your siting. >>>>>> See if your Vue vane is pointing into the direction weewx reports. >>>>>> Mine >>>>>> down here is from the SW currently FWIW. >>>>>> >>>>>> (if you watch local tv news, take a drink every time they say >>>>>> 'atmospheric river' this week) >>>>>> >>>>>> On Tuesday, December 5, 2023 at 1:01:14 PM UTC-8 Rob Cranfill wrote: >>>>>> >>>>>>> I’ll figure out how to do that and let ya know. Thanks! :-) >>>>>>> >>>>>>> On Tue, Dec 5, 2023 at 12:28 Tom Keffer <tke...@gmail.com> wrote: >>>>>>> >>>>>>>> Good point, Jeff >>>>>>>> >>>>>>>> Looking at April 2023, the plot suggests wind direction is mostly >>>>>>>> SSE. The monthly summary >>>>>>>> <https://robcranfill.net/weather/tabular.html?report=NOAA/NOAA-2023-04.txt> >>>>>>>> >>>>>>>> the same. >>>>>>>> >>>>>>>> Still, I'd like to see the database, if possible. >>>>>>>> >>>>>>>> -tk >>>>>>>> >>>>>>>> On Tue, Dec 5, 2023 at 11:12 AM Jeff A. D. <jadav...@gmail.com> >>>>>>>> wrote: >>>>>>>> >>>>>>>>> Looks like those are daily plots? Should each plot correspond >>>>>>>>> with the dominant direction (DOM DIR), the last column of the monthly >>>>>>>>> NOAA >>>>>>>>> report? >>>>>>>>> >>>>>>>>> On Tuesday, December 5, 2023 at 8:27:30 AM UTC-7 Tom Keffer wrote: >>>>>>>>> >>>>>>>>>> That is an odd graph of wind direction. I looked over a one-year >>>>>>>>>> plot of wind direction at my location, and it has a similar look. >>>>>>>>>> But then, >>>>>>>>>> I live in a gorge where the wind almost always blows east or west, >>>>>>>>>> occasionally from the south, almost never from the north. >>>>>>>>>> >>>>>>>>>> [image: image.png] >>>>>>>>>> >>>>>>>>>> Is there some way you could make your database available to me? >>>>>>>>>> Perhaps put it on a Google Drive, or FTP server? I'd like to take a >>>>>>>>>> closer >>>>>>>>>> look. >>>>>>>>>> >>>>>>>>>> -tk >>>>>>>>>> >>>>>>>>>> On Mon, Dec 4, 2023 at 5:36 PM Rob Cranfill <robcr...@gmail.com> >>>>>>>>>> wrote: >>>>>>>>>> >>>>>>>>>>> Hi, all! Longtime user, and hoping this isn't too dumb a >>>>>>>>>>> question..... >>>>>>>>>>> >>>>>>>>>>> I have seen the ongoing discussions about the inherent >>>>>>>>>>> difficulty of calculating "average wind direction" and am wondering >>>>>>>>>>> if >>>>>>>>>>> maybe that issue is what is causing the weirdness in this long-term >>>>>>>>>>> graph, >>>>>>>>>>> like this (taken from http://robcranfill.net/weather, which you >>>>>>>>>>> are free to peruse!) >>>>>>>>>>> >>>>>>>>>>> [image: yearwinddir] >>>>>>>>>>> >>>>>>>>>>> This is my yearly data, and I'm sure the wind does *not* >>>>>>>>>>> actually blow like that. I had a friend/user ask me about why the >>>>>>>>>>> graph >>>>>>>>>>> looks like this, and I had no answer, except to say "No, there is >>>>>>>>>>> nothing >>>>>>>>>>> preventing my weather vane from pointing any way the wind blows!" >>>>>>>>>>> :-) >>>>>>>>>>> >>>>>>>>>>> Thanks for any info, >>>>>>>>>>> rob in seattle >>>>>>>>>>> >>>>>>>>>>> -- >>>>>>>>>>> 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 weewx-user+...@googlegroups.com. >>>>>>>>>>> To view this discussion on the web visit >>>>>>>>>>> https://groups.google.com/d/msgid/weewx-user/e1a39ce9-ad57-4750-a181-211e87d6aa21n%40googlegroups.com >>>>>>>>>>> >>>>>>>>>>> <https://groups.google.com/d/msgid/weewx-user/e1a39ce9-ad57-4750-a181-211e87d6aa21n%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>>>>>>>> . >>>>>>>>>>> >>>>>>>>>> -- >>>>>>>>> You received 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