Jason’s Weather: 11/30/10

By now, we all know about the impending monsoon. This forecast is for Thursday and beyond. A negative NAO finally sets up, bringing cold air from East Central Canada into our neck of the woods, and keeping it here. Temps in the mountains will remain below freezing for at least one week. This should allow for round-the-clock snowmaking.

gfs

A byproduct of the block in the North Atlantic is cyclogenesis and you know what that means — a potential storm forming on the east coast. The GFS is showing exactly that in about eight days, but its precise track needs to be worked out.

All in all, I’m excited about this pattern.

Jason’s Weather: 11/21/10


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Thanksgiving Week: The Bad, The Good and The Ugly

Monday and Tuesday will feature a low moving straight through Lake Michigan. This will keep us on the warm side. Unfrozen precip will be associated with the trailing cold front. Temps will zoom into the 50s all the way to Montreal. A cold front passing Tuesday afternoon or evening will usher in seasonably cold air and snow showers. Temps could dip into the low teens and possible single digits in the higher elevations.

The Ugly: Starting Thursday, as an upper-level ridge builds over the East Coast, a powerful 500 mb low will move through the Great Lakes. This will bring in unseasonably warm air and the chance of heavy wet Thursday night and Friday morning. A strong cold front will pass through the region Friday bringing in much colder air and the possibility of high winds. There should be a significant lake-effect event for areas that favor a northwest flow. After that, the models are all over the place.

It looks like a slow start to the eastern ski season.

Jason’s Weather: 11/8/10

Taking the the GFS at face value, the next 10 days don’t look promising. With ridging just off both the west and east coasts, all the cold air will be funneled right down the middle of the country.

temperature forecast

This setup keeps the East in a southwest flow for many days. As time goes on, the ridge off the east coast should relax and allows a west-northwest flow, and more seasonable weather. At this time of year, confidence in temperature forecasting isn’t high, so things could still turn in our favor.