For your information above Italy there is no volcanic ash at all.
Those genious professionals of ENAC (FAA or CAA equivalents) had stopped ALL IFR and VFR flights over all the entire air space above the country.
Somebody is wondering why no stop is imposed ammong ETNA volcano activity lasting all year long that throws tonnes of ash upon something like 500thousand people, also SID's and STAR's from Catania airport being just in the very middle of the ever lasting smoke exiting from the edge of the volcano 24/7.
I normally fly every day in HEMS in such an environment with a B412, no problem at all.
No question about ash cloud is a danger for air transport, as all pilots know.
Arrogance can beat worse than a volcano, especially if aviation rulemakers are ignorant!!