© Roman Tregubov'This is fireball lightening, it's the first time I see one in my life.'
Like an approaching UFO, the bright white luminous ball glides over a field, before heading into woodland.
A local caught on camera this unusual example of ball lightning near his
dacha (country house) outside Novosibirsk, Siberia's largest city. His grasp of his cell phone was shaky but his analysis of the phenomenon - as heard on the commentary - was accurate, say experts.
'What is it there?' a female voice asks from a distance.
'Fireball lightening,' answered the man with the mobile phone camera, Roman Tregubov, a graduate of the Novosibirsk State Technical University.
'Look, look, what is it?' another man asks.
'Argh it's moving away,' the cameraman says. 'This is fireball lightening, it's the first time I see one in my life. It's going to move away. Lost it. Where it is? There is it. I wonder if it'll blow off soon. Yep, it blew off.'
Comment: Elsewhere within the past year some record-breaking and rare storms include:
April 2016: Cyclone Fantala became the Indian Ocean's most powerful storm on record
February 2016: Cyclone Winston caused devastation in Fiji as the most-potent cyclone on record in the Southwest Pacific
January 2016: Hurricane Pali became the earliest-forming hurricane in either the Central or Northeastern Pacific, forming unusually close to the equator
January 2016: Hurricane Alex, a rare January storm in the Atlantic and the first storm of the 2016 Atlantic hurricane season
October 2015: Hurricane Patricia became the strongest-known storm in the Northeast Pacific