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Welcome to the New York City Metro Weather Blog. I am Danny and I am 22 years old. Here, you will find daily forecasts for the NYC/LI, NJ, PA, and CT areas. I will post model images when it's pertinent. I will sometimes delve into the long-range, so if you something coming up, you can get an idea of what the weather will be like. I will post historical weather events from time to time that have affected my home of Long Island. Sometimes, I will go on a rant. But you can always count on the New York City Metro Weather Blog!

Friday, December 7, 2012

Pattern Change In The Next 7-10 Days?

Lately, we have been looking for a possible pattern change in the next 7-10 days.  One thing that has me hopeful is the MJO. It looks to go into phase 1.

Phase 1 is an excellent phase for the NE/MA if you're looking for cold/snowy weather. You can see the 500mb composite for Phase 1 for December below.

You can see there is troughing near the Aleutians in the NE Pacific. This usually teleconnects to a +PNA. The +PNA is a ridge over the western states. Over the east, there is a trough. You can also see a -NAO, with the block WEST based as it's over Southern Greenland. This pattern is usually good if you're looking for an east coast snowstorm.

We might be looking at a possible storm in the Dec 15-22 period. Whether it's an east coast snowstorm remains to be seen, but if this pattern actually verifies, the possibility increases. 




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