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Model Mezzanine, the 2nd installment


Typhoon Tip

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I think you need to hold tight. What if the euro ensemble is right? That's a lot of wintry precip for the interior. Hold off on saying all rain to Stowe.

 

I think you need to hold tight. What if the euro ensemble is right? That's a lot of wintry precip for the interior. Hold off on saying all rain to Stowe.

The euro ens mean over NYC is a bad place for 90% of New England. Unless I'm totally mistaken

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Well that's why I said a lot of wintry precip for interior. I didn't say all precip. It also depends where in the interior....details that cannot be determined.

There's also massive spread. It could easily be a system where it's like 7" of snow to hours of ice at ORH and the storm tracks almost over NYC.

This could go through CLE or still go over the BM. Hard to convey that message when te OP runs were mostly west but we said the same thing yesterday when most OP runs were strung out and east.

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There's also massive spread. It could easily be a system where it's like 7" of snow to hours of ice at ORH and the storm tracks almost over NYC.

This could go through CLE or still go over the BM. Hard to convey that message when te OP runs were mostly west but we said the same thing yesterday when most OP runs were strung out and east.

Yeah spaghetti plots have a ton of spread. It will be interesting to see how the 12z guidance goes. My gut says this area is probably in a low chance of a good event, but it's early.

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I think some expect jan MA blizzard like accuracy by the models and that just won't be the case here. Even the steady as she's goes euro has bounced around from hugger to strung out se back to hugger. Tons of energy rounding the base so I think guidance will continue to misfire until we are within d4 or so. Not saying we should wait for perfect bm track either. Certainly the less than ideal north is a concern. Just a wait and see approach is best...how's that for a BTV like AFD of "check back this weekend".

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I think some expect jan MA blizzard like accuracy by the models and that just won't be the case here. Even the steady as she's goes euro has bounced around from hugger to strung out se back to hugger. Tons of energy rounding the base so I think guidance will continue to misfire until we are within d4 or so. Not saying we should wait for perfect bm track either. Certainly the less than ideal north is a concern. Just a wait and see approach is best...how's that for a BTV like AFD of "check back this weekend".

 

The Jan blizzard basically had a big 50/50 low so the model adjustments were not going to be large...this is why having a block is nice, because it really narrows the path of where a low can go. Without one, you are all over the map with just minor changes upstream a few days out.

 

 

So it is no surprise that this one is especially tough on the models.

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The Jan blizzard basically had a big 50/50 low so the model adjustments were not going to be large...this is why having a block is nice, because it really narrows the path of where a low can go. Without one, you are all over the map with just minor changes upstream a few days out.

 

 

So it is no surprise that this one is especially tough on the models.

 

I don't think this can be over emphasized, Really it has been this way for most storm systems this year, Why would it change now

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So the 6z GFS shows a good amount of snow getting pulled back into the midwest.  As I understand it, systems that slam the midwest (that far west from the coast) are not terribly common, so my question is: in a storm like that, where is all of the moisture coming from? Is it all coming from the Atlantic (as with a more traditional coastal storm)? 

 

You mean the Ohio Valley? The moisture is coming from the Pacific off the west coast of Mexico and the Gulf of Mexico. And some travels down the rockies from the Pacific off the NW coast.

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The Jan blizzard basically had a big 50/50 low so the model adjustments were not going to be large...this is why having a block is nice, because it really narrows the path of where a low can go. Without one, you are all over the map with just minor changes upstream a few days out.

So it is no surprise that this one is especially tough on the models.

Yea, it's too bad mondays system can't form a transient 50/50, just enough to keep wed/thur from going up over nyc. Unless I'm reading it wrong and it still can?
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The one thing I noted yesterday..As the models ramped up the Sunday night/Monday storm..it helped confluence a bit.

 

The overnight runs weakend it and dropped it farther south..and I wonder out loud if that didn't have a direct effect on these massive west shifts we saw last night?

 

Seems so far the 12z runs are bringing back the first wave..so perhaps things might stabilize or even shift back a bit.

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The one thing I noted yesterday..As the models ramped up the Sunday night/Monday storm..it helped confluence a bit.

 

The overnight runs weakend it and dropped it farther south..and I wonder out loud if that didn't have a direct effect on these massive west shifts we saw last night?

 

Seems so far the 12z runs are bringing back the first wave..so perhaps things might stabilize or even shift back a bit.

Didn't think any 12z runs came out yet other than the nam before 10:45

Or are we referring to sunday/monday as the first wave.

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The one thing I noted yesterday..As the models ramped up the Sunday night/Monday storm..it helped confluence a bit.

The overnight runs weakend it and dropped it farther south..and I wonder out loud if that didn't have a direct effect on these massive west shifts we saw last night?

Seems so far the 12z runs are bringing back the first wave..so perhaps things might stabilize or even shift back a bit.

I would think it's because the high and confluence is now more on Monday, and then moves out allowing the mid-week to go west.

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