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1. A cold high pressure area dominates the Northeast weather map. As the high shifts southward, so too will the area of southwesterly flow on the north side of the high.
2, The stratospheric cold signal we have been speculating about seems to be having its first impact in Asia rather then North America. Whether or not that feature causes it (and whether or not the next forecast map below turns out right), the National Weather Service Climate Forecasting System predicts a chilly and potentially stormy March:
If the long wave trough is west of the Appalachians, this pattern would favor chillier-than-average conditions in the Northeast and opens the door for East Coast storms.
3. However, this upper-air forecast from yesterday is still on track for next week according to more recent models:
4. In the meantime, this map shows several areas of precipitation but no large area of storminess:
5. More forecast details are in this video:
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