As I look out the window in dread seeing that the snowflakes are quite large- I remembered that I was told that if you see the snowflakes are getting larger, than the storm is ending soon. Any truth in this? If so, why does it do this?
-Splanky (Hoping large snowflakes mean no school tommorow, and not the end of the storm)
In my experience, big snowflakes means it’s (relatively) warm outside. Maybe right around freezing. Nothing more than that.
Concur with rogzilla; small gritty flakes usually signifies a colder temperature; large, soft flakes means it is warmer; this may mean the storm is about to end, but it needn’t
On the coast here we often get storms that alternate between snow and rain, the big flakes are just before it turns to rain, or just after it turns to snow, in other words when it is just barely freezing. Sometimes the entire storm can consist of only large wet flakes, that stick to everything and can amount to several inches, very heavy and can cause significant damage to power lines, trees and weaker roofs. At least that’s the way it works here.
When you have a storm, the air is extremely turbulent, which is not very condusive for the formation of large flakes.