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"We're gonna need a bigger plow..." Massive, persistent singal now emerges discretely in the models, 20th-23rd


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2 minutes ago, Thunderblizzard said:

Handling of the TPV was much more favorable than 12z... need to see that show up in other models.

The ridge or western North America is also bulging east more aggressively on some of these guidances. That’s probably more important in where this thing ultimately locates in the west east aspect. 

but the sp Vortx stuff going on north is very important for how our boundary layer conditions will be as well and if it gets strong enough it will ultimately stop this thing from going up in Ontario altogether and we end up with a whole different scenario anyway

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The ridge or western North America is also bulging east more aggressively on some of these guidances. That’s probably more important in where this thing ultimately locates in the west east aspect. 
but the sp Vortx stuff going on north is very important for how our boundary layer conditions will be as well and if it gets strong enough it will ultimately stop this thing from going up in Ontario altogether and we end up with a whole different scenario anyway

Yeah’ hopefully it’s enough to prevent a 955 low from curling up onto Hudson’d Bay and spinning there for 3 days…mixing out/eating up all the cold reservoir up there…setting up our post-12/28 thaw…


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2 minutes ago, MJOatleast7 said:


Yeah’ hopefully it’s enough to prevent a 955 low from curling up onto Hudson’d Bay and spinning there for 3 days…mixing out/eating up all the cold reservoir up there…setting up our post-12/28 thaw…


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I’m not sure I buy that thaw just yet.  Hmm. 

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These run peregrinations indicate the situation is still pretty fluid -  and I don’t mean that as an unfortunate pun.  Heh.

I mean in 120 hrs The mid-level is down near Kentucky …that’s still a  ways enough off. And we’ve been having problems with the Pacific relay into North America all season long with timing and structure of short waves …it’s been a spacial-temporal nightmare for determinism so its a red flag imho to put a stop on presumption

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Merry Christmas ya'll

Trends remain that the low will be an inside runner with the
predominantly rain across the region, with a mix or areas of light
snow inland at the onset, quickly going over to all rain. A deep
moisture feed from the Atlantic and Gulf of Mexico will precede the
low with the potential for a moderate rainfall. With increased
confidence in a precipitation event probabilities have been
increased to likely and categorical Thursday night into Friday
across the area. Followed the NBM guidance.

:cliff:

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24 minutes ago, The 4 Seasons said:

Merry Christmas ya'll

Trends remain that the low will be an inside runner with the
predominantly rain across the region, with a mix or areas of light
snow inland at the onset, quickly going over to all rain. A deep
moisture feed from the Atlantic and Gulf of Mexico will precede the
low with the potential for a moderate rainfall. With increased
confidence in a precipitation event probabilities have been
increased to likely and categorical Thursday night into Friday
across the area. Followed the NBM guidance.

:cliff:

awt

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