IMPORTANT: ALWAYS CONSULT LATEST NOTAMS;  VOLCANIC ASH NOTAMS; ASHTAMS; OFFICIAL LONDON VAAC VOLCANIC ASH ADVISORY AND VOLCANIC ASH GRAPHICS; AND MET WATCH OFFICE VOLCANIC ASH SIGMETS
VOLCANO: GRIMSVOTN 373010
PSN: N6425 W01720
VOLCANIC ASH CONCENTRATION: LOW; 200 MICROGRAMS PER CUBIC METRE CONTOUR
ISSUE TYPE: EXERCISE
MODEL RUN: 20210611/1500
ISSUE TIME: 20210611/1449
VALID: 20210612/0900
FLIGHT LEVEL: SFC/FL200
REMARKS: ERUPTION ONGOING. SEE ANNOTATED SATELLITE IMAGERY FOR FURTHER DETAILS EXERCISE
ORIGINATOR: LONDON VAAC
POLY 1
N660705,E0070153
N635615,E0073013
N622615,E0063825
N612219,E0044652
N610206,E0012423
N612123,W0044652
N620415,W0120537
N612625,W0174308
N620540,W0195807
N624845,W0202926
N644022,W0181653
N645140,W0163537
N635615,W0045744
N633119,E0005037
N641701,E0033922
N660705,E0070153
