On Thursday, March 5, 2020 at 5:39:21 PM UTC-5, Thomas Keffer wrote: > > According to the database, you saw a max gust of 39.6 mph, or 63.7 kph, > which is exactly what was reported on your website. > > It is always possible there is a bug in the driver for the WH1080, but > unlikely. A bug this fundamental would have been discovered a long time > ago. > > Perhaps Matthew has an opinion...? >
stefan, why do you think that your station experienced a maximum gust of 100kph, not 63.7kph? i am pretty sure we worked out all of the unit conversion issues in the fousb driver a very long time ago. i don't have recent data (two anemometers are broken right now), but for years i ran a comparison of fousb, acurite, te923, and ws23xx stations, and the fousb wind values correlated with those of the other stations. the sensors report an integer value that is 10x m/s. so we divide that by 10 to get fractional m/s. then we multiply that by 3.6 to get the km/h that is required by METRIC unit system. in your case, that is then converted to mph when saved to database (since your database is US). you might test by comparing the following 3 values: - what you see on your weather station console - what you see coming out of weewx at the same time - what you see on a hand-held or nearby anemometer at the same time m -- 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+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/cc9c9a9a-0feb-480c-8832-439d5146ab9f%40googlegroups.com.
