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: MEDIUM; 2000 MICROGRAMS PER CUBIC METRE CONTOUR
ISSUE TYPE: EXERCISE
MODEL RUN: 20220114/1500
ISSUE TIME: 20220114/1512
VALID: 20220115/0900
FLIGHT LEVEL: FL200/FL350
REMARKS: EXERCISE EXERCISE EXERCISE PLUME HEIGHT ESTIMATED AT 25KM
ORIGINATOR: LONDON VAAC
POLY 1
N675048,W0055423
N640605,E0163537
N584115,E0222309
N555026,E0224653
N611845,E0185442
N632830,E0142037
N635837,E0055423
N621227,W0041307
N624845,W0062104
N644120,W0062808
N652617,W0084307
N631147,W0185037
N635615,W0192356
N660522,W0152807
N675048,W0055423
