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Last week of October and All of November could become very cold and snowy


USCAPEWEATHERAF

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Looking at the latest 12z model data, it appears that the last week of October through the Halloween holiday and into the first few weeks of November the Teleconnections will favor trough in the east and ridge in the west type pattern where sustained cold will be possible in New England north of 40N latitude.  This could mean a stormy November in which cold air sinks into the Oh Valley centered in this region the trough will allow storms to come up the East Coast to the benchmark and give us precipitation perhaps in the form of snow or rain.  GEFS. GFS, EURO, CMC all favor a long range pattern that is conducive for snow and cold, just how cold will be determined by a negative anomaly in the Arctic Oscillation cycle.  This negative anomaly should allow a polar vortex or a vortex from the arctic circle to focus a cold air phase into the Northeastern US by November 1st.  This should be a fun period folks, especially if blocking develops over the Atlantic Ocean.

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