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GL/MW/OV December 2010 disco thread


snowstormcanuck

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Swirling sheets of snow (very small flakes, opposite of yesterday) and skiffs of snow blowing everywhere on the roads gave a very wintry feel this morning. Total snowfall 0.1" yesterday and 0.2" today, though it was never on the ground at one time like that. Essentially what we have now is bare ground with snow drifted against curbs and the edge of the sidewalks. But boy is winters nip in the air!

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earthlight said:

Before it starts, I can say this. The Euro weeklies released today develop a huge west based NAO block weeks 2-3 (absolutely textbook)..which would certainty send most people here through the roof with joy.

Could you expand on this?

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Could you expand on this?

There are other factors at play, but a west based -NAO is conducive for a)flooding areas east of the MS river with cold air, and b)setting up a storm track along the EC. East based -NAO is better for those of us west of the mountains, but the presence of one teleconnector never completely rules out any type of storm, and that's assuming the EURO weeklies are right to begin with.

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There are other factors at play, but a west based -NAO is conducive for a)flooding areas east of the MS river with cold air, and b)setting up a storm track along the EC. East based -NAO is better for those of us west of the mountains, but the presence of one teleconnector never completely rules out any type of storm, and that's assuming the EURO weeklies are right to begin with.

I kind of figured he was talking about the EC...but wanted to make sure since he posted in the Central/Western Region.

The bolded section is what gets me. Before you read below...I'm aware that it's a "marriage" between multiple teleconnects...

Allan told me once that a West Based -NAO is favorable to suppression.

So...with the above in mind, wouldn't a "neutral" based -NAO...neither in the Davis Strait or UK...more Denmark Strait be better off for the EC?

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Could you expand on this?

It's better for the east coast but pretty terrible for everyone here. It will dump cold, dry air into the lakes though which will favor Lake effect areas, but other than that, most areas will be dry except for anything that can make it over the ridge out west. (clippers) NW flow really sucks and is usually a dry flow down in Missouri. If there is a west coast trough and a neg nao then you will get suppression and the southern states will get snow. (OK, AR, TN etc)

The best for the majority of people on this part of the board is a west coast trough and a weak SE ridge. This would allow the storms to track into the west, form a low over the southern states to establish a good moisture connection and then head NE while strengthening and depositing snow on the NW side of the system.

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It's better for the east coast but pretty terrible for everyone here. It will dump cold, dry air into the lakes though which will favor Lake effect areas, but other than that, most areas will be dry except for anything that can make it over the ridge out west. (clippers) NW flow really sucks and is usually a dry flow down in Missouri. If there is a west coast trough and a neg nao then you will get suppression and the southern states will get snow. (OK, AR, TN etc)

The best for the majority of people on this part of the board is a west coast trough and a weak SE ridge. This would allow the storms to track into the west, form a low over the southern states to establish a good moisture connection and then head NE while strengthening and depositing snow on the NW side of the system.

Thanks again!

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There are other factors at play, but a west based -NAO is conducive for a)flooding areas east of the MS river with cold air, and b)setting up a storm track along the EC. East based -NAO is better for those of us west of the mountains, but the presence of one teleconnector never completely rules out any type of storm, and that's assuming the EURO weeklies are right to begin with.

last week the euro weeklies were signalling +EPO/+NAO by the 4th week, so yeah...

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-16 850s all the way down to st louis hr 216 -20 to -24 850s over eastern mn and wi

-20 to -30 below zero cold in the plains as well.

Yeah just seen that.. Talk about some primo ice making weather. Might be driving on Bago mid-month! Quads for sure I bet.. did the lake ice over completely last night?

I shouldn't get too excited as the Euro sucks that far out.

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