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: KATLA 372030
PSN: N6338 W01907
VOLCANIC ASH CONCENTRATION: HIGH; 4000 MICROGRAMS PER CUBIC METRE CONTOUR
ISSUE TYPE: EXERCISE
MODEL RUN: 20230210/1600
ISSUE TIME: 20230210/1533
VALID: 20230210/2200
FLIGHT LEVEL: SFC/FL200
REMARKS: KATLA ERUPTS TO 22KM+/-1KM, ASSESSED BY IMO MOBILE RADAR. SEE ANNOTATED SATELLITE IMAGERY FOR FURTHER DETAILS. EXERCISE.
ORIGINATOR: LONDON VAAC
POLY 1
N650031,W0123922
N645144,W0102423
N635615,W0071624
N634845,W0052037
N631115,W0030059
N620345,E0041607
N613951,E0033922
N621305,W0023153
N631115,W0072543
N631538,W0102423
N633527,W0120537
N633430,W0174308
N631204,W0185037
N633345,W0192309
N643118,W0181653
N650031,W0123922
