A piteraq raging the 'east end' of Tasiilaq. April 2005.
“Of particular note in East Greenland is the infamous but thankfully
rare and short-lived ‘Piteraq’, a fierce katabatic wind
that thunders down from the icecap. In Ammassalik, the highest Piteraq gusts
were recorded in 1972 and measured 72 m/s.”
Read more about weather and climate in East Greenland at: http://www.tunu.co.uk/Climate.html