It is simply about the intensity. Snow flurries are just some snowflakes in the air that generally don't even whiten the ground. Snow squall indicates potentially heavy snowfall that can accumulate a few inches (or more, in extreme cases) in an hour. Squalls also indicate a very showery nature to the snow - that is, the intensity varies quite rapidly.
Flurry
Flurry
Snow crystals have regular shapes though each are individual. I'll add some pictures in the related links.
My parents have seen it flurry twice in the last 70 years. And that was at least 40 years ago since they last saw it snow. Its been getting colder in recent years... its a possibility.
snow, rain, sleet, and hail
Flurry
http://dictionary.reference.com/browse/flurry. It states that flurry means "a light, brief shower of snow"
http://dictionary.reference.com/browse/flurry. It states that flurry means "a light, brief shower of snow"
Snow
flurry
A flurry is a light sprinkling of snow or rain. We like to watch the years first snow flurries while drinking hot cocoa.
Flurry is something tiny that spins like leaves or even snow that is caused by the sudden wind breeze. This can also pertain as snow shower.
Depending on your flurry (snow-based or multiple in quick succession), I might think you're referring to the latter. In which case, if something is happening quickly and it just won't stop, you could use "flurry". i.e. "Today, my boss would not stop with his flurry of insults."
It was made in 1948.
Flurry
Blizzard or snow squall
I thought I'd just seen a scared squid squirt his ink during a small squall.