I'll be curious to see what if anything falls out of post-event review, because I'm pretty on board with the messaging was awkward with this one. Seems like we would have been better off if headlines didn't exist at all and we just told people what would happen.
Actually the round 2 shortwave is farther east than that. It still needs to rotate around the north side of the upper low.
Just a tick north of Lake Erie at the moment.
Advisory is simply 3" in 12 hours. So the thinking would be no 12 hour period sees more than 3" for you.
Personally, I would argue that 6" drawn out over 24+ hours will be impactful enough to warrant one.
I mean the GFS would suggest the spoke of vorticity pinwheels around the low, shoots through the Carolinas and rides NNE to a position off Cape Cod by early Tue. That's the forcing that helps the low take off.
Just think about trying to model that man.
Eventually it replaces the NAM, ARW, and NMM, and then the HREF is run with just HRRR members and you can get a true ensemble spread. It's going to be a pretty good system once we get there.
They are actually making real significant improvements to that model quarter over quarter. There's always an experimental version running testing out those new features. I know recent ones include improved cloud forecasts. The latest experimental improves ptype.
It's replacing the NAM eventually, so wait until it goes out 60 hours!
It looks like NCEP guidance is sensitive to the ridging ahead of the kicker shortwave. If those heights are lower it gives more room for our storm to amplify. That's the biggest signal I see from the Stony Brook stuff.