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High latitude blocking increasingly likely through November
Good afternoon! Autumn like weather is in place as we speak across much of the Northeastern United States, with relatively seasonable temperatures. Enjoy it while it lasts. It will feel much more like winter very soon, as an arctic blast is set to arrive from Friday into Saturday. Very quickly, temperatures will fall 15 to […]
Afternoon Video Update: NAO Blocking Signal Grows
Good afternoon! The well-advertised signal of high-latitude blocking developing in the 2nd half of November continues to grow. It all starts with an amplification and slowing down of a Pacific wave train, which helps to pump latent heat towards the Poles, further leading to ridging extending towards the Poles. Subsequently, this changes the background state […]
Why is high latitude blocking a key for sustained cold in the East?
For quite some time now, we have been discussing the critical pieces that go into our Winter Forecast. The puzzle starts with current conditions – from the tropical Pacific to the Atlantic and Indian Oceans and everywhere in between. The current ENSO state has a huge impact on the forecast for any season, so understanding how […]
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