I don't know what SGF was talking about in their AFD. The system that forms the trough in the west that is the basis for the snow doesn't move onshore in northern cali until tomorrow morning. The lead wave that dampens out is the one they were talking about I guess.
Yeah, that's the thing with Kuchera, it's highly dependent on the model getting the QPF exactly right and the exact temps at the time the precip is falling.
Pivotal's Kuchera uses the formula. I'm not sure what Weatherbell's uses.
In the winter weather tab of the parameter menu on the side, there's a "Kuchera" which shows what the ratio is for that given time on the model.
So on the 12z GFS for hour 63 for example, the Kuchera ratio is 15:1 in your area. The 12z NAM is also at 15:1
Euro had a little less precip this go 'round in general. Congrats OKC this run. NW AR kind of gets screwed a bit, but overall, accumulating snow for all.
12z Canadian drastically increased amounts from last night... Late to the show, Canada... late to the show....
I'm going to set my disappointment threshold to 4" of snow. If I get less than that, I'll be sad, more than that, I'll be ecstatic.
12z RGEM is still working on bulking up amounts for what it thinks will happen.
12z ICON has bulked amounts up some.
If we're getting snow showers/flurries/light snow for what little lift is available out there now. One would imagine sustained lift and SW flow with an approaching system would generate a more persistent shield of snow without any breaks?
So let's see what happened on the 06z runs.
NAM has 3 waves of precip starting with the lead wave, then 2 other waves of precip, bulked the snow up back into OK compared to previous runs.
RGEM also has 3 waves of precip starting with the lead wave and 2 other waves of precip. It continues to play catch up with amounts.
GFS was farther south with the precip shield on the first storm, and the second storm's precip shield was farther west.