Hint 4

Click on the image at left for a close-up view of the situation in the Northeast. Golly. The winds are all coming from the same direction everywhere.

Note the temperature at Littleton (HIE) just across the border in New Hampshire. Now look at the temperature northwest just across the border near my home in Frelighsburg, Quebec (WFQ). Please read these temperatures and compare. Brrrr. Now go northwest again to my hometown of Montreal (YUL), and then go to the ski resort of Saint Jovite (YJT) in the Laurentian Mountains northwest of
Montreal. Observe the temperatures. Double brrrrr. This looks like a temperature gradient to me.

I now have to drive home late after helping you with this blog. Good thing I have studded tires. I hope the cars coming the other way on those highways have them too. When it freezes this quickly, there is often ice under that snow. If you're out on the roads, slow down and drive safely. I certainly will.

Hint 3

Here's the situation early Friday morning as I write this blog. This map indicates that we are in for cold blast. Those minimum temperatures are going to be something to watch tonight and tomorrow.

How do I know?

Note the weather system dominating all of the United States. It is very large. It is hard to miss. So is the circulation around that system. We've discussed this circulation in almost every investigation.

Note also the direction of the wind over New England associated with this circulation. Note also the temperatures upwind of Vermont. Also, keep your eye on the skycover. Clear or cloudy skies at night will make a difference.

To quote Avril Levigne in her smash debut hit of "Skaterboy": "Could I be anymore obvious"?

Hint 2

What a difference a day makes! 24 hours later, the situation is very different int he darkness of early Wednesday morning. That Alberta clipper that several of you have identified is over the Great Lakes. This positioning has an affect on the temperature advection over us. You will note that the cloud over over Vermont is radically different. How does this affect high and low temperatures?

Hint 1

Here's an image of Tuesday morning. take note of the sky conditions and the wind conditions over Vermont. This will explain the very cold temperatures that morning. Anyone come up with a low temperature?

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