A cloud full of ice lollies sounds like something out of a fairy tale. But this phenomenon has been spotted in cloud systems over the UK and North Atlantic.
A significant concentration of these curious ice formations – in the shape of a stick with a spherical head at the end – were seen on a research flight over the north-east Atlantic Ocean last September, after previously being observed over the south-west UK in January 2009. Stavros Keppas and his colleagues at the University of Manchester have now published their findings from both flights.
The observations made in 2009 were more comprehensive, as measurements from the aircraft’s on-board probes were combined with data from a radar system in the southern UK. There was no radar coverage in 2016 because the sighting was in a relatively remote region.
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