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Epic winter signal continues to beam, part III


Typhoon Tip

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Couple of things off the bat:

Nam and gfs has differences on s/w coming into us near montana at 0z. Gfs was faster, nam is even slower and more sw this run. 0z ruc and upper air seems to agree with the nam.

Second the system in California. Nam had more vorticity on the coast further north. Ruc and ua agree although it's not as strong as the nam modeled earlier.

In short two trends in the nam favor not sure how it plays out. If anything slower systems I think leans the nam had some decent ideas but who knows...to me looks like the atypical step back from the off hour over adjustment thru 18

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Analog: Last week :arrowhead: Look for trends in delaying the storm and look for models going too warm along the East Coast.

GFS (18Z) 6+. Euro ptype issues d6 big time. We'll see how it shakes out.

FWIW from the main thread - last storm as an analog for the D6 threat LOL.

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I think they are very close to reality.

There's almost no spread now in C/N NH with the 850s so those members that pushed sleet to Berlin are gone. I kinda like the idea of getting in on better dendritic growth in the deformation versus getting a 10:1 slaughtering.
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Jerry, there will be a warm layer above H85.....sleet will make it a bit n of that line.

Yes. But transient. AS stated earlier today, we just don't get hours of sleet in my by. Rain, snow yes, not sleet for hours on end. Pingers at times and maybe even an hour or so, sure. But predominant...highly unusual climo wise.

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Jerry, there will be a warm layer above H85.....sleet will make it a bit n of that line.

Sleet will probably taint the picture with that specific model right now but probably only a good 10-15 miles, not 20-30 north of that. I doubt that warm nose can penetrait that far.

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