on these current observations, IMO moves the
aviation color code from orange to yellow as there are no
clear indications for an imminent eruption.
Cloud height:No eruption ongoing.
Other
cloud information:No eruption ongoing.
Remarks:More information
about Grímsvötn volcano, its past eruptions and
associated volcanic hazards is
available at the
link: http://icelandicvolcanoes.is/?volcano=GRV
/earthquakes-and-volcanism/volcanoes/vona-notifications/