I do have the same question.
Does this depend on the provider? For example, my company uses Lido for the OFP. Would this mean it depends on when Lido updates their wind data? One dispatcher mentioned that wind updates occur every 6 hours starting at 00:00. However, I tried updating the wind at 01:00 yesterday, and it hadn't changed from the previous one. I would really appreciate a reference for any answer. Thanks!