I put "bad" and "good" in quotation marks because it is subjective (whether you want snow or don't want snow).
I just meant that sometimes we praise the NAM when it shows what we want, but discuss how it is inaccurate when it doesn't show desired outcomes.
I think the last few weeks has shown that the NAM is not reliable at all. Brad P even mentioned concerns about its reliability over the last few years since they are transitioning to FV3 and HRRR.
If you throw out the "bad runs", you also need to throw out the "good" runs.
Still plenty of time.
Nothing has really changed over the past 2-3 days if you look at the big picture.
Still looks like a rain/snow event with light amounts possible over central NC.
Great article about how ensembles work if anyone is interested. https://www.wral.com/how-wral-meteorologists-use-ensemble-forecasting-to-determine-the-chance-of-1-or-3-snow-in-your-town/20099023/
From Mike Maze: Many folks have been reaching out about the possibility of a major winter storm this weekend. Today's model runs are not showing it at all. Here's a look at the European Ensemble probabilities for 1" of snow ending Saturday night. Does not look good to me right now.
Ensemble map shows 26% chance of 1" of snow for Wake.
Yes, they did say that. It was on their blogs.
I haven't verified the accuracy of the statement though.
As for next weekend, the signal is there, but cold air looks limited for now.
The forecast looks pretty spot on to me so far. There are still several hours at least of snow to go and we already have about an inch in southern Wake. Most predictions I saw for this area were in the 1-3" range.
Remember when a lot of folks were freaking out about that run of the NAM that shows the storm disappear?
This should be a lesson to never freak out over one or two bad model runs.