An example of a flurry is when snowflakes are carried along in the wind and are swirling about in the air; a snow flurry.
An example of a flurry is when 20 people arrive all at once to a party; a flurry of activity.
A flurry of interest in the new product; a flurry of activity when the plane landed.
A flurry of wind.
When you hurry around your kitchen in a state of over-excitement trying to get Thanksgiving dinner ready, this is an example of a time when you flurry.
When snowflakes are picked up by gusts of wind and create a swirling mass, this is an example of a time when they flurry.