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SE Mid-Long Range Discussion II


strongwxnc

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I find it surprising on how there is a split among a lot of intelligent Met's on whether stratospheric warming is having an impact or not. I obviously have no clue but it's fun to read.

I think it's because there isn't a lot of data on how the stratospheric warming effects things, still a lot of research to do there. I find it very interesting though, it will be even MORE interesting to see how this correlates to what actually happens on the ground.

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6Z DGEX shows some light snow across the southeast, everyone from northern MS > N. AL > N. GA > Western and Northern NC > NW SC in about 5 days. I thought about posting this note in the Banter thread but hey it's only five days away.

lol my post got deleted when I said you could take the DGEX solution of giving NC a foot plus snowfall to the bank so I'll digress. One good thing though is that it continues to show something. We need all the consistency we can get!

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Does Accu-weather use a real forecasts for their 15-day? By that I mean do they tend to hone in one model or is it a well thought out forecast? I ask this, because typically I will look at their '15-day extended' for local plans, however I love reading this board. Sometimes accu-weather will have a complete (abrupt) change in their 15-day forecast though, so I'm not sure if they are just pulling the GFS (or whatever) and simply going by that or are they taking a truly professional stock of information and making an analysis. Thanks.

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Does Accu-weather use a real forecasts for their 15-day? By that I mean do they tend to hone in one model or is it a well thought out forecast? I ask this, because typically I will look at their '15-day extended' for local plans, however I love reading this board. Sometimes accu-weather will have a complete (abrupt) change in their 15-day forecast though, so I'm not sure if they are just pulling the GFS (or whatever) and simply going by that or are they taking a truly professional stock of information and making an analysis. Thanks.

I'm almost positive their 15-day forecasts are computer generated based on model output.

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Does Accu-weather use a real forecasts for their 15-day? By that I mean do they tend to hone in one model or is it a well thought out forecast? I ask this, because typically I will look at their '15-day extended' for local plans, however I love reading this board. Sometimes accu-weather will have a complete (abrupt) change in their 15-day forecast though, so I'm not sure if they are just pulling the GFS (or whatever) and simply going by that or are they taking a truly professional stock of information and making an analysis. Thanks.

i think their forecasts are some sort of combination of their accumodel and the gfs.

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Does Accu-weather use a real forecasts for their 15-day? By that I mean do they tend to hone in one model or is it a well thought out forecast? I ask this, because typically I will look at their '15-day extended' for local plans, however I love reading this board. Sometimes accu-weather will have a complete (abrupt) change in their 15-day forecast though, so I'm not sure if they are just pulling the GFS (or whatever) and simply going by that or are they taking a truly professional stock of information and making an analysis. Thanks.

All of the private vendors use some type of ensemble set up then massage through statisitcal/climo algorithims to generate a forecast...In the free to the public version, they are probably using nothing but output from the GFS with probably not a lot of human intervention in the outlying days. The first few days probably get quite a bit of attention with a full suite of models. Pretty sophisticated stuff these days...I remember when it was rolled out in the late 90s at TWC...there were more than a few issues with it back then...And I have seen some firms struggle through implementation with this during the 2000s as reflective in the work they would send us.

http://www.rap.ucar.edu/wsap/themes/prediction.php

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Hello SE! I'm back after a long absence. Hopefully just in time to for the winter to turn it up a notch or two. On accuweather 15 day, I think they are very heavily tied to the GFS. In fact, according to JB it used to be just rip, read, and post on the site. That may have changed over the last couple years, but that is the way it used to be. I rarely look at their site anymore. Too little time and much better info. to be found here.

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