Nacreous Clouds over Ireland
These images by Daragh McDonough at Donegal, Ireland were taken this morning 1st February '16. The clouds shine their iridescent filmy colours into the dawn brightening sky.
Nacreous clouds, polar stratospheric clouds typeII, are exceeding rare at such low latitudes. They were expected, however, because stratospheric temperatures over Ireland and UK are very low and forecast to remain so for a few days. If you are in Ireland or UK look out for them this week before dawn and after sunset. There are even reports of possible daylight sightings.
Images ©Daragh McDonough, shown with permission