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: THORDARHYRNA 373012
PSN: N6416 W01737
VOLCANIC ASH CONCENTRATION: HIGH; 4000 MICROGRAMS PER CUBIC METRE CONTOUR
ISSUE TYPE: EXERCISE
MODEL RUN: 20220211/1500
ISSUE TIME: 20220211/1535
VALID: 20220211/2100
FLIGHT LEVEL: FL200/FL350
REMARKS: EXERCISE ERUPTION DETECTED ON INFRASOUND SENSOR WITH ASH PLUME VISIBLE ON RADAR AND WEBCAMS SOUTH OF VOLCANO
ORIGINATOR: LONDON VAAC
POLY 1
N654154,W0084307
N650912,W0030538
N642903,W0044652
N641845,W0145849
N640204,W0152807
N635626,W0170923
N641845,W0181610
N645750,W0170923
N654154,W0084307
