Here's a forecast summary for the week coming up. Interestingly, this article states most of the ash is 10000 feet and below. Maybe more ash over UK/Germany midweek but in a narrower band. Southwesterly to kick in late week and take the ash away from Europe.
A respite until the next northwesterly flow sets in?
AccuWeather.com - Weather News | Ash Plume to Shift Farther South through Europe
Best,
Jim