Coldest Air of the Season Arrives Today Lasts Into Wednesday Morning

Coldest Air of the Season Arrives Today Lasts Into Wednesday Morning

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Coldest Air of the Season Arrives Today Lasts Into Wednesday Morning

Yesterday’s arctic front that produced freezing rain and rain is now offshore and temperatures fell below freezing overnight and have settled in the 20s. This is where we will be all day even though we will have some sunshine. That sunshine will be completely ineffective as arctic air is coming in. So we will be in the 20s all day today and then with clear skies tonight temperatures are set to head down to single digits inland and low teens in coastal and more urban areas. There will also be a bit of wind today and tonight making it feel colder and moving the air around so temperatures across the region will be in a relatively tight range. Not much is showing up on the satellite other than some patchy clouds and we do have the lake effect snow machine working in Upstate NY and Western Pennsylvania and that will continue all day.

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WEATHER RADAR

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Tonight we do have an upper tough dropping southward from Upstate NY and that might trigger off a couple of snow showers upstate but it looks to weaken so I’m not concerned about it. Otherwise our clear very cold overnight leads to a Tuesday that will be even colder than today. We will have completely ineffective sunshine and highs will just reach in the mid teens to lower 20s.

The core of the cold air mass will be overhead Tuesday night into Wednesday morning making this the coldest night of this current stretch. Skies will be mostly clear. The question about the wind is important because if if drops off, it will create a wide range of lower temperatures and send areas that usually radiate at night down to very low levels. For now we think there will be just enough of a breeze to keep that from happening but lows will still be down in the single digits to lower teens by Wednesday morning.

The one good thing about arctic air masses is that once the core of the cold air moves out, temperatures tend to bounce rather quickly as long as there is sunshine around and there will be on Wednesday. Even after what will be a bitter cold start, temperatures will head up into the low and middle 30s just about everywhere.

Low pressure is going to develop in the Northeast Gulf, cross Florida, and head up the East Coast as a major storm. This storm will pass well to our east though there is a chance it could come closer to Southern New England. It looks like it will be a big snow storm for New Brunswick and Nova Scotia. This storm is very important in the long range pattern as it sets off a blocky pattern across the North Atlantic and the Arctic. This in turn displaces cold air south and it also will displace storm tracks further south. However there is a lot of uncertainty regarding these systems in terms of strength. The building pressures in the North Atlantic and the Arctic will in turn potentially suppress weather systems further south. While internet chatter about storms on certain dates continues in almost unrelenting fashion, we rather remain in a skeptical watch and wait mode until the upper air settles down a bit. There is frankly just way too much going on across all of North America and when you have a lot of weather systems running around and all sorts of pressure changes, it requires a forecaster to take a step back and attempt to sort all this out. Time to continue to punt!

 

 

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