London VAAC: Volcanic ash advisories and graphics
Volcanic Ash Advisories (VAA) and Graphics (VAG) links are provided for each message issued.
Volcanic Ash System Test/Demo Friday 3rd October
London VAAC is conducting a live system test and demo, taking place on Friday 3rd October. Products with a fictitious VA Plume will be published and marked with EXER/EXERCISE or TEST. No operational action should be taken on these charts. Should a real eruption take place, subsequent products will NOT be marked with EXER/EXERCISE or TEST.