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: 20250610/2100
FLIGHT LEVEL: FL350/FL550
REMARKS: EXERCISE ERUPTION ONGOING
ORIGINATOR: LONDON VAAC
POLY 1
N645040,W0153730
N633224,W0013730
N615452,E0052230
N613925,E0053730
N613730,E0055526
N613619,E0053730
N631627,W0050730
N635230,W0101534
N635937,W0130730
N640739,W0135230
N640825,W0170730
N642230,W0173442
N643442,W0172230
N643730,W0164629
N645002,W0162230
N645040,W0153730
