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Feb 8-10 Light snow event that i spent 10 days tracking


Ji

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The differences that psuhoffman posted continue to show me why models are so lacking.

 

 

they aren't going to be very good from this lead time with a complicated pattern with a lot of moving pieces...we've been looking a lot of analog patterns this winter which is something you would like, which is basically what kind of scenarios did past similar patterns produce...that has been more helpful at longer lead times, and used in conjunction with models.  Once we get closer in, the chaos is less and models are pretty amazing, though they won't always get the nuances right...knowing climo and knowing DC definitely helps...but bucking the models in a serious way close in will usually lead to a poor forecast...

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The differences that psuhoffman posted continue to show me why models are so lacking.

The model guidance is an amazing tool as long as you use it the right way, as GUIDANCE.  there are way too many that read the models verbatim and throw it down as a forecast.  That is bad meteorology plain and simple.  But the models can be used to increase skill for a good forecaster that takes several factors and tools into the big picture.  Frankly there are some things that are almost impossible to see simply using old school met practices and the models are invaluable to help us see things we could not before.  Analogs have their limitations also as no two events are identical. 

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Like Wes said, the EURO is actually closer to a big storm than it looks, The shortwave at 120 hours looks like it is in a pretty good spot, however the energy that was shot out ahead of it kind of stole its thunder so it develops too late. JMA is actually similar to EURO as well except keeps more of the energy in the main show. 

 

I'd say more than 50% of the eventual big storms that we get do this on the models, they show big hits in the 7-9 range, lose the storm, though keeping the idea, and then come around to the storm.

 

Not saying that will happen, but the threat is still very alive. 

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None of what I said is counter to what the model says because it does not say anthing. What is does say is there may be a low right along the southeastern Great lakes, or there may be a low 50 miles south of DC, or there may be a low 100 miles east of Norfolk.

 

yeah..at this range with a more complex setup, there are going to be a variety of solutions...using ensemble members makes more sense to get the range of possibilities or at least where guidance may be leaning...

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yeah..at this range with a more complex setup, there are going to be a variety of solutions...using ensemble members makes more sense to get the range of possibilities or at least where guidance may be leaning...

That doesn't help very much right now though.... 12z GEFS were all over the place -- some showing a cutter, some flat solutions, and some look like they would be large snowstorms... 

 

GGEM ensembles are better, they have a coastal... but some are out to sea, some are hits

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Looks like the second piece is further south. Grazed by the front wave/coastal but the precip fills back in from the tn valley/se. Sunday probably has some decent members for the second wave. Control supports a better second wave as well. 

too far out to worry. If we dont see something better tomorrow....then maybe start to panic

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