On Saturday, 30 January 2021 at 21:13:15 UTC, Colin Youngs wrote:
Brussels on Saturday 30th January 2021

Dull and wet morning with persistent light to moderate rain. Rain changed to sleet around midday, but precipitation became slight and intermittent after 13.00 local time. Light rain again after 16.00, changing to light to moderate sleet after dark, but dry since mid-evening.

Wind switched from WSW to NE late in the night; moderate E wind in the morning backed ENE in the afternoon. Temperature fell steadily before dawn as the wind changed direction, and it remained cold throughout the day.

Brussels Uccle 3.5°C – overnight minimum 3.5°C – 10.9 mm rain
Brussels Airport 2.0°C – overnight minimum 1.9°C – 7 mm rain

Brussels Uccle Graphs http://deus.irceline.be/~celinair/me...=nl&sta=T1R012

Rainfall radar https://www.buienradar.be/belgie/nee...gkijken/24uurs

OGIMET monthly summary for Brussels Uccle https://tinyurl.com/y6bzj4bv

Webcam Grand-Place http://www.brussels.be/webcam-grand-place

Webcam Uccle and hourly observations https://www.meteo.be/en/weather/observations/belgium

Colin Youngs
Brussels
What exactly is this I am looking at:
https://www.netweather.tv/charts-and-data/jetstream

All I can make out from it is that it is trying to avoid the eruption of Etna, something that the North Atlantic sea level pressures says is impossible except that is isn't.