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February 8-12 East Coast Storm Potential


REDMK6GLI

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For those who are wondering, what you see north of the international border is a confluent flow and sprawling high pressure on the south side of the PV. A piece of the EPO ridge has forced higher heights southward over Canada north of the Great Lakes which is acting like a bit of a block. The trough north of New England is acting as a psuedo-50/50 although not textbook by any means.

 

The energetic trough entering the Central US will eventually be forced southeast underneath this confluence and blocking. As PVA begins the surface low will form into the TN Valley. In this setup it then becomes important to note where the confluence is and how far north and west the secondary can develop. 

 

If the GFS is correct you can assume there will be significant cold air drainage due to the high pressure and the surface low will therefore redevelop near the baroclinic zone and or near the coast. This has significant winter storm written all over it. 

 

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This isn't the historic storm that the 00z GFS had which showed the SW closing off at H5 multiple times, but this is still a SECS border line MECS.

168 hours away...specifics aren't important. Potential is high for the biggest storm in years based on the h5 setup. 

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