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Moving Through December - Changing Patterns and Changing Diapers


ChrisM

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Its going to be unprecedented if I make it to Dec 14th with 8.5" of snow on the season.

Seriously, people need to get over the idea that models failed on the MJO PAC stuff for Dec 5-10. It was looking like a fail over a week ago.

can you post that BOS top 5 snow image again? **** keeps getting buried around here and I can't find it.

Wasn't there more AK ridging?

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Its going to be unprecedented if I make it to Dec 14th with 8.5" of snow on the season.

Seriously, people need to get over the idea that models failed on the MJO PAC stuff for Dec 5-10. It was looking like a fail over a week ago.

Just let an orange line car hit you at downtown crossing.

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medium range look warm and boring from Matt Noyes this is his 8-14 day forecast which takes us through the 17th of December. People are so focused on the temps and forgetting that 80% of our country is still mired in a year long drought...it has been very very hard to get any measurable precip in here for quite some time now...November driest on record...so I am just as concerned about dryness as I am about temps.

From Noyes...

An active jet stream will continue to carry Pacific storms into the West Coast, and after a week of flooding the country with warm air, producing record warm temperatures in several cities for the month of December, this mild air will be offset by a deepening but broad trough that will allow cold air to seep southward from Canada. Near the Canadian border, this will mean cold air produces below normal temperatures in the Northern Plains and Upper Midwest. In the southern United States, the mild air will be well entrenched and too far from any Canadian push of cool, meaning above normal temperatures prevail. For a belt between, including the Northeast, near normal or perhaps very slightly above normal temperature should be the result.

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Euro ensembes do not show a KU cookbook pattern...but they never have. If you are looking for that, then I will direct you to some Eastern threads from 2009-2010. They are not quite as obsessed with the NAO block moving west...however, that should be expected as we move closer. We have been skeptical of a west based block for some time now. An east based block though looks probable, which is a good thing to have.

The Aleutian ridge is going to take a beating southward between now and next week...it actually already has....but then it builds poleward again. That is key going forward in December as it keeps a supply of arctic air into Canada. If the ridge is flattened out as we get closer and we see slightly above normal heights in Kamchatka and Bering straight replaced by a deep vortex...then we would be in serious trouble. But nothing suggests that will happen right now.

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Euro ensembes do not show a KU cookbook pattern...but they never have. If you are looking for that, then I will direct you to some Eastern threads from 2009-2010. They are not quite as obsessed with the NAO block moving west...however, that should be expected as we move closer. We have been skeptical of a west based block for some time now. An east based block though looks probable, which is a good thing to have.

The Aleutian ridge is going to take a beating southward between now and next week...it actually already has....but then it builds poleward again. That is key going forward in December as it keeps a supply of arctic air into Canada. If the ridge is flattened out as we get closer and we see slightly above normal heights in Kamchatka and Bering straight replaced by a deep vortex...then we would be in serious trouble. But nothing suggests that will happen right now.

May get some to back off the ledge now, Jeezus its bad in here

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Euro ensembes do not show a KU cookbook pattern...but they never have. If you are looking for that, then I will direct you to some Eastern threads from 2009-2010. They are not quite as obsessed with the NAO block moving west...however, that should be expected as we move closer. We have been skeptical of a west based block for some time now. An east based block though looks probable, which is a good thing to have.

The Aleutian ridge is going to take a beating southward between now and next week...it actually already has....but then it builds poleward again. That is key going forward in December as it keeps a supply of arctic air into Canada. If the ridge is flattened out as we get closer and we see slightly above normal heights in Kamchatka and Bering straight replaced by a deep vortex...then we would be in serious trouble. But nothing suggests that will happen right now.

But they still have a formidable -NAO right?

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