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: 20250610/0900
ISSUE TIME: 20250610/0923
VALID: 20250610/0900
FLIGHT LEVEL: SFC/FL200
REMARKS: EXERCISE ERUPTION ONGOING
ORIGINATOR: LONDON VAAC
POLY 1
N642230,W0173539
N643539,W0172230
N643545,W0170730
N643358,W0165230
N642654,W0163730
N642230,W0163300
N641547,W0163730
N641101,W0165230
N640915,W0170730
N640921,W0172230
N642230,W0173539
