We basically want that whole area of low 500mb heights to get pulled like taffy, with one big clump moving toward Ontario and the other pinwheeling around it down the Rockies and into the Plains. 0z Euro did that some, although not to the degree the 12z GFS did. 12z euro seems to be stubbornly staying as one big wad.
Anytime a model spits out something unprecedented, you should take it with a heaping dose of salt. However, we do have near record -AO, -EPO, and -NAO…
The lead shortwave that goes through the Lakes is pretty key obviously. Want that strong, separated, and moving east to get trapped under the Baffin NAO ridge.
Something I noticed. Trying to figure out why our shortwave for the 22-23rd is digging so much more in the last 24hrs worth of runs. I think it’s this lead shortwave that moves through the Lakes around D4-5. It sort of merges with and pulls a piece of the 50-50 low west. This provides a lot more suppression of our shortwave and forces it well south. Compare yesterday and todays 18z GFS runs.
Not sure if it will come together, but if we didn’t have a digital HECS 48hrs before this panel, I’d be stoked. This is a canonical look. #CAPEStorm2022