A Big Difference In The Models

Take a look at the huge difference in these two computer models.  Both models are valid for next Tuesday morning.  This first one is the European model:

The European shows a well-developed low pressure system just south of Chicago, with a strong cold front stretching south to the Gulf of Mexico.  This looks like it would be a major snowstorm for the Midwest and the Great Lakes states.

The next computer model, the GFS, is completely different.  Take a look:

The GFS shows a sprawling high pressure system over Nebraska and Iowa, with some rain over Texas and Oklahoma.  Based on these two models, if you have to make a forecast for Chicago it’s either a snowstorm…..or dry, sunny and cold.

For Oklahoma, both solutions are cold, but the  GFS shows a chance of some wintry precipitation.  Looks like I’ll have my work cut out for me in making today’s forecast.  This is just one example of how the models can vastly disagree with one another.  It’ll be interesting to see which one of these ends up being closest to what actually happens.

Don’t forget you can follow me on Twitter through the day.  What’s that you say?  You don’t have a Twitter account because it’s not cool?  Don’t be silly.  Get yourself a free account and follow my tweets.  Go to twitter.com.  Search for kocoweather.  It’s information…good, quick, timely, weather information.  Pass the word.



One Response

  1. Yeah, the GFS has gone nuts and given us over a foot of snow in the 18Z run. It will be interesting to see how this turns out. Personally, I want to see which one is right 🙂

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