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: MEDIUM; 2000 MICROGRAMS PER CUBIC METRE CONTOUR
ISSUE TYPE: EXERCISE
MODEL RUN: 20250610/0900
ISSUE TIME: 20250610/0923
VALID: 20250611/0300
FLIGHT LEVEL: SFC/FL200
REMARKS: EXERCISE ERUPTION ONGOING
ORIGINATOR: LONDON VAAC
POLY 1
N653924,W0195230
N651402,W0183730
N650102,W0140730
N623728,W0030730
N593305,E0120730
N572230,E0145733
N531345,E0155230
N540135,E0153730
N540923,E0145230
N552638,E0132230
N580410,E0112230
N591027,E0093730
N614626,W0023730
N640951,W0220730
N645230,W0230247
N653924,W0195230
