A snow day literally and figuratively falls from the sky, unbidden, and seems like a thing of wonder. -- Susan Orlean

Sunday, December 18, 2016

Watch the Mercury Fall

The wacky weekend weather continues today. After a good 4-6" for almost all of the Berkshires yesterday, the rain his begun and temps are climbing into the high 40s. At the GSD Office at around 7 AM we even heard a clap of thunder, due to the warm front that has now passed through.

Data courtesy of the National Weather System
But hold onto your hats because a cold front is a-coming! We will see a 40 degree temperature swing in less than 24 hours. That's right, 40 degrees. We should top out in the high 40s--maybe even 50 in some places in South County--and then by 7 AM tomorrow, we will be looking at single digits on the thermometer.

This means that you could see flash freezing of wet roadways this afternoon and evening, creating the insidious and nefarious black ice. Road crews should be able to treat roads by the start of school, but there may be an outlier delay called in the morning due to icy conditions. We'll set the True North Confidence meter at a very modest 5% to indicate the slim chance of a delay for one or two schools.

Our next snowmaker should be Thursday night into Friday. It's too early to tell if it will impact Friday morning's start of school.

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