A scary twist in the tale.
THIS is the kilometre-long twister which raged through Donegal yesterday.
Lecturer John O'Raw and his daughter Niamh were in their garden at Umricam near Buncrana when they spotted it travelling over Sliabh Sneacht mountain at 11.30am.
Mr O'Raw said: "Niamh and I were outside when we looked around and were faced with this amazing sight.
"The twister was about two kilometres away from us and it was heading south.
"Sliabh Sneacht is more than 600 metres high so the tornado must have been going up to over a thousand metres."
No damage was reported. Mr O'Raw, who teaches computer science at Letterkenny Institute of Technology, was among those who videoed the Orca whales off the coast of Donegal last week.
He is also a volunteer with the Seismology in Schools project that recorded the earthquake off Co Mayo last week.
FRIGHT in Co Donegal yesterday