Hello Marienka, alas, it's the same with Chromium this morning.

Hello everybody!
Since a few days Windy does not display correctly in Vivaldi-Browser (fork of Opera / Chromium). That is, the winds are indicated as coming from north or other direction, whereas in reality they blow from the east. If I change the zoom, the display becomes even more incoherent. No problem with Chrome-Browser, Opera or Firefox. My OS is Linux Manjaro. My location is St. Martin, French Antilles.
Any idea?

Hello everybody. I live in the West Indies, in St Martin island (18N, 63W). Generally, wind speed by Windy is 5 to 12 km / h higher than the reality. At this time (12th of July at midday), Windy indicates 29 km / h while Princess Juliana Airport indicates 23 km / h (link below). In Nettle Bay (or Baie Nettlé, 2.5 kilometers from the airport) where I live, wind is felt as light to moderate (but not 29 km/h). Nevertheless, Windy is an excellent application that I consult every day.
Check official wind speed at http://w1.weather.gov/data/obhistory/metric/TNCM.html