Oooh The Weather Outside Is...
Dec. 1st, 2005 11:39 am![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png){kind=small}
dolphins_logIt's 11:40 AM here in Poulsbo and it's snowing quite heavily. It's not sticking yet.
I've learned a bit about Snow Weather in the PNW, and what factors are necessary. This I've found interesting. There are two factors needed to create a snowfall.
1. The air must be dry.
2. It has to rain hard.
So very wet and very dry. Go figure. This is how it works. A cold air mass needs to be in place and has to dry out the air. It can be around 36 degrees or so. A wet air mass needs to override the cold air and dump its load. The dry air absorbs the rain causing the air to lose energy and cool further. Because the air is absorbing the rain it needs to rain hard enough so that some of that precipitation makes it through to the ground.
There are other ways to get snow in the PNW. I just thought this wet/dry factor was entertaining.
I've learned a bit about Snow Weather in the PNW, and what factors are necessary. This I've found interesting. There are two factors needed to create a snowfall.
1. The air must be dry.
2. It has to rain hard.
So very wet and very dry. Go figure. This is how it works. A cold air mass needs to be in place and has to dry out the air. It can be around 36 degrees or so. A wet air mass needs to override the cold air and dump its load. The dry air absorbs the rain causing the air to lose energy and cool further. Because the air is absorbing the rain it needs to rain hard enough so that some of that precipitation makes it through to the ground.
There are other ways to get snow in the PNW. I just thought this wet/dry factor was entertaining.
