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Strategies & Market Trends : Taking Advantage of a Sharply Changing Environment -- Ignore unavailable to you. Want to Upgrade?


To: Doug R who wrote (1048)11/19/2018 1:04:13 PM
From: 3bar  Read Replies (2) | Respond to of 6351
 
Looking at snowfall near bottom of link . My area is in the 100 % over normal ? That is a heck of a call .



To: Doug R who wrote (1048)11/13/2019 8:44:05 PM
From: Doug R1 Recommendation

Recommended By
Hawkmoon

  Read Replies (4) | Respond to of 6351
 
I wonder if Mike B's weather page will rev back up for the season. mikebweather.com
Meanwhile, back in the Arctic.... (where the AO is still positive but falling...with deep negative to come. Think it's cold now?)

"The National Snow and Ice Data Center describes the effects of the AO in some detail. In the positive phase, higher pressure at midlatitudes drives ocean storms farther north, and changes in the circulation pattern bring wetter weather to Alaska, Scotland and Scandinavia, as well as drier conditions to the western United States and the Mediterranean. In the positive phase, frigid winter air does not extend as far into the middle of North America as it would during the negative phase of the oscillation. This keeps much of the United States east of the Rocky Mountains warmer than normal, but leaves Greenland and Newfoundland colder than usual. Weather patterns in the negative phase are in general "opposite" to those of the positive phase.

Climatologists are now routinely invoking the Arctic Oscillation in their official public explanations for extremes of weather. The following statement from the National Oceanic and Atmospheric Administration's National Climatic Data Center: State of the Climate December 2010 which uses the phrase "negative Arctic Oscillation" four times, is very representative of this increasing tendency:

"Cold arctic air gripped western Europe in the first three weeks of December. Two major snowstorms, icy conditions, and frigid temperatures wreaked havoc across much of the region...The harsh winter weather was attributed to a negative Arctic Oscillation, which is a climate pattern that influences weather in the Northern Hemisphere. A very persistent, strong ridge of high pressure, or 'blocking system', near Greenland allowed cold Arctic air to slide south into Europe. Europe was not the only region in the Northern Hemisphere affected by the Arctic Oscillation. A large snow storm and frigid temperatures affected much of the Midwest United States on December 10–13...." [7]" en.wikipedia.org

Meanwhile...in twitterville...



Judah Cohen@judah47

I am simply tweeting this plot out because it just speaks to me - the stratospheric Arctic Oscillation. It is predicted to be in a strong downward trend over the next two weeks, covering four standard deviations in that short time! Also GFS feeling very confident in the forecast