It's all just idle curiosity and most of the time nothing changes in 5 minutes, but when a storm cell come through things change very quickly. That last one, for example, had a rain event that was over in 9 minutes (although the hail followed). The heaviest rain was 6mm in one minute, with 23mm over the 9 minutes. The wind peak occurred 2 minutes before the rain peak.
I got interested in looking at the detail when Weather Underground tagged my system as "unreliable" (or it lost its gold star or something - I forget the details) due to a sudden temperature drop of over 5deg C. I started thinking the wind must have been blowing the rain through the Stephenson box and cooling the sensor, but then noticed that sometimes the temperature drop occurred before the rain - so I am guessing that is more liekly downdrafts from the storm cell. On Tuesday, 18 November 2025 at 11:04:35 pm UTC+10 John Smith wrote: > On Tue, 18 Nov 2025 at 23:43, 'Cameron D' via weewx-user < > [email protected]> wrote: > >> There is no MQTT, but I don't understand how that could have any effect >> on storage. >> > > I'm curious why you need such a small update interval as I don't notice > many changes in 5 minutes most of the time, and I think I saw that weeWX > keeps track of min/max from loop packets for the archive period... > > Some skins use MQTT to display information from loop packets that fire > every few seconds and then show it on web sites. In this situation it's to > keep the information as fresh as possible, without needing to store it in > small update intervals. Everything else would still come from the archive > packets. > > > -- 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 visit https://groups.google.com/d/msgid/weewx-user/7cbc493c-9081-45e8-a27a-ea3e73f45fa6n%40googlegroups.com.
