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February 4-5th Winter Storm


Chicago Storm

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The gfs has major handling issues.

 

Because it's the only guidance that crushed the NEPAC ridge as this system dives down the backside.  So it ejects much futher North than every other piece of guidance and it's own ensembles.

 

The big change occurred at 06Z when the Heights were dramatically lower over the ridge out West. 

 

The other models don't show anything like this.

 

So for the folks who are freaking out don't worry.

 

I'd worry more about the chance the nam is right with that stupid wave in-between.  That would be ugly.

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The gfs has major handling issues.

 

Because it's the only guidance that crushed the NEPAC ridge as this system dives down the backside.  So it ejects much futher North than every other piece of guidance and it's own ensembles.

 

The big change occurred at 06Z when the Heights were dramatically lower over the ridge out West. 

 

The other models don't show anything like this.

 

So for the folks who are freaking out don't worry.

 

I'd worry more about the chance the nam is right with that stupid wave in-between.  That would be ugly.

 

And if one doesn't understand the H5 height maps.  In this case you can just compare surface maps showing where the SLP leaves Texas.  And you will see the differences are massive.

 

But if you just look at where the SLP is in the Ohio Valley you won't see the major differences.  Since the GFS trackes ENE.

 

While the other models all come out of SE Texas.

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