Eruption of Grimsvötn
The eruption of Grimsvötn volcano in Iceland is not expected to affect European airspace - at least for a day.
On 21 May at 2100 CET, EUROCONTROL was advised by the Icelandic Met Office that the Grimsvötn volcano had erupted. The plume of ash has reached a height of 12 km or higher around Iceland and is currently drifting NE.
EUROCONTROL has stated that there is currently no impact on European or transatlantic flights and the situation is expected to remain so for 23 May, but by midnight 23/24 May the plume is expected to touch the UK-Ireland Functional Airspace Block (FAB) - see Met Office Ash Concentration Charts below.
Apparently aircraft operators are constantly being kept informed of the evolving situation.
For further information see the links below.