TheIronSheik
SUPER ELITE UPPER TIER
This is still fairly accurate and I see this link passed around a lot by weather geeks and pro mets alike. To go a little deeper, some models handle certain types of storms better, due to their biases. That's why I always say not to just stick with one model. One model might have the better verification record, but if it doesn't perform well in certain types of storms, then it won't perform at its average.I found this (outdated?) explanation of the different models.Tough answer. This past storm was pretty much a given at 5 days out. This storm is 4 days out and models are not agreeing at all. While this won't be a thread the needle type storm, this will definitely be something more in the middle.The #### is this now? How big you thinking?I put the Thursday night/Friday storm for this week at about 40% right now.
Currently, the Euro is seeing this as something big. Big as in "slightly smaller than this past one." Right now, it is thinking this would be more of a New England storm, but we (the MA) could be included. It shows the southern energy moving ahead of the northern energy, which allows a bomb of a low pressure to ride up the coast. GFS and Canadian do not agree. They have the southern system moving just a little too slow which would send the low out to sea. The key here is that all of the models see a low developing, so the big question is "up the coast" or "out to sea." Right now, the Euro seems to have a better handle on the data. And while people love to say things like "King Euro!", that same king failed miserably with this past storm.
This storm will have a much higher bust ratio, especially for the MA. But that doesn't mean it won't happen. I say 40% because my eyes tell me it's a 50/50 chance, but my gut tells me that I shouldn't put too much faith in one model when the the other models do not agree.
http://www.accuweather.com/en/weather-blogs/weathermatrix/why-are-the-models-so-inaccurate/18097
Can you provide a link to something more up to date or is that info still generally true?
On top of everything, it's important to remember that models are just that: models. If looking at a model told you the weather, there'd be no need for meteorologists. Mets take all of the model data and then use it to determine the most likely outcome. A good example of that is right now. We have one model saying possible storm for NE, and the rest are saying no. But most mets are looking at that data and saying that based off of models, this could move closer to the coast and cause issues up and down the east coast. So it's important not to get too hung up on what a model says or doesn't say.