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Thanksgiving week transient cold shot and the pattern beyond


ORH_wxman

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The one thing that sticks out in my mind, is how strong the PV is up by AK. It's basically from the surface to the Stratosphere right now..lol. I think the AO will remain positive for a while to come. I guess in my mind, I think we are just going to have to hope the vortex retrogrades enough to pop some ridging in the western NAMR. I just don't see that vortex breaking down quick enough, so we should root for it to at least retrograde.

I would love for it to vanish because even if it retrogrades, it is in a very precarious position to redevelop or move back east. Hopefully this thing just spins itself out by mid to late month.

yeah that's shown up from time to time on the ensembles too...it sort of releases then pulses back eastward and you end up with the lowest height in the NH relative to normal in the exact same spot.

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