View this full web site Click: New Blog located at Local weather and interactive radar at

My Examiner Home Page- Click this image to view.

Wednesday, October 29, 2008

October Snow: The Models Show a Chance This Afternoon Closer To Home

Guns and Roses sang November Rain, but should someone write a song about October Snow? Even the pumpkins were shocked. Last week I mentioned a snowstorm I experience on Halloween at Cornell (Ithaca, NY), but it's still a rarity for them too. Lots of schools were closed and power went out from the heavy snow and high winds.
I have posted the Snow Totals on my story with

Some of the snow amounts over 1 foot extended into the Poconos of northestern PA. Even western Maryland got in on the act.

Here is a snapshot from this morning, showing the snow on the ground at Frostburg State University. Our floor director told me this morning that her daughter went to school there just so she could have more snow. That's a woman after my own heart.

Here is a new, cleaner view of the Upper Level Energy at 500mb (around 18,000ft). This shows the potential for showers to carry over the mountains and reach central Maryland this afternoon and evening.
I've analyzed the wind direction off of the Lakes...and circled the vort max in the orange shading over central Maryland. This is the spin of energy tat should carry the showers over the mountains. The Number [540] is 5400m and represents the thickness of the atmosphere which translates to a layer of near freezing air aloft. Colder air contracts and is less thick in between certain layers.
While downtown temperatures should be around 47F, I expect lower 40s or colder up north near the PA. So the Hereford Zone of Baltimore County and Carroll County should have snowflakes mixed in, thanks to colder cloud temperatures. A burst may occur close to dark, that could coat the grass, but the ground is still relatively warm, so the roads will be fine.
Tomorrow and Halloween we get back to more sun, and a gradual warm up.

No comments: