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: HIGH; 4000 MICROGRAMS PER CUBIC METRE CONTOUR
ISSUE TYPE: EXERCISE
MODEL RUN: 20210611/1500
ISSUE TIME: 20210611/1449
VALID: 20210611/2100
FLIGHT LEVEL: FL200/FL350
REMARKS: ERUPTION ONGOING. SEE ANNOTATED SATELLITE IMAGERY FOR FURTHER DETAILS EXERCISE
ORIGINATOR: LONDON VAAC
POLY 1
N645737,W0105808
N644115,W0094947
N635146,W0084307
N635345,W0055423
N633345,W0051058
N625728,W0070153
N625337,W0084307
N625602,W0120537
N631115,W0124833
N631833,W0142038
N633644,W0145422
N634106,W0160152
N641845,W0173814
N643759,W0170923
N643951,W0123922
N645737,W0105808
