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Feb 8th-9th Do We Finally Get A Coastal?


dryslot

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The QPF values on the Euro are just staggering. This model is usually the most conservative when it comes to QPF out of the higher end models. One of the reasons it outscores all other guidance on QPF.

 

It is eye-opening. But still just one run that is this obscene. We'll need to see some consistency before thinking '78 redux and reserving an extra page in the KU book.

I don't understand how the Euro can have such high QPF.  To get these numbers don't you need storms to be captured?  aka  1969,1978 etc.  How can a progressive storm give us that much precip?

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So...I just had a class on terrorism...needless to say I wanted to kill myself and didn't hear one thing being said. Just wow!!!

Lol same in my African history class.

Gonna be hard waiting til tomorrow night, restraining the pent-up weenie madness from these last 2 seasons, but still so far out in modeling time.

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I don't understand how the Euro can have such high QPF.  To get these numbers don't you need storms to be captured?  aka  1969,1978 etc.  How can a progressive storm give us that much precip?

 

It does get "captured"...albeit still progressive. Its basically a 24 hour storm which is longer than a normal storm but still quick for a high end KU type...the amount of subtropical/gulf moisture in it is very high which is probably causing the big QPF....but I would def be weary of those numbers since it doesn't stall out for 36-48 hours like you said.

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If that happened it would be the biggest bust ever...from 3 feet of snow to cirrus...

I remember one event a few years back where the NAM went from 2-3 feet to zero, just 24 hours out.

 

Caution should be used with specific snowfall forecasts 3 days out...

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Oh god... I hate situations like this! I feel like a few weeks ago there were a few runs and people got excited, does this look much better then that?

 

This is 6 runs in a row that the Euro has showed a bomb of some sort, so snow is coming, in what amount is the question.

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It does get "captured"...albeit still progressive. Its basically a 24 hour storm which is longer than a normal storm but still quick for a high end KU type...the amount of subtropical/gulf moisture in it is very high which is probably causing the big QPF....but I would def be weary of those numbers since it doesn't stall out for 36-48 hours like you said.

Basic question, so delete if needed...

 

What does it mean for it to be "captured"?

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Basic question, so delete if needed...

 

What does it mean for it to be "captured"?

 

 

The surface low gets tucked in right near the upper level low....usually right when that happens, there is very heavy qpf rates and the storm tends to temporarily slow even in an progressive pattern...Jan 12, 2011 has this happen and it turned a 12 hour storm into an 18-20 hour storm.

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The surface low gets tucked in right near the upper level low....usually right when that happens, there is very heavy qpf rates and the storm tends to temporarily slow even in an progressive pattern...Jan 12, 2011 has this happen and it turned a 12 hour storm into an 18-20 hour storm.

 

Wasn't there also blocking (-NAO) for that storm though?

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It does get "captured"...albeit still progressive. Its basically a 24 hour storm which is longer than a normal storm but still quick for a high end KU type...the amount of subtropical/gulf moisture in it is very high which is probably causing the big QPF....but I would def be weary of those numbers since it doesn't stall out for 36-48 hours like you said.

 

 

Exactly. If you saw that 250 wind graphic I posted a couple pages back, you can see upper level winds never come around from the east as you would see with a more traditional stall capture. Instead they are from the south, which slows the system down, but doesn't stop it.

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The surface low gets tucked in right near the upper level low....usually right when that happens, there is very heavy qpf rates and the storm tends to temporarily slow even in an progressive pattern...Jan 12, 2011 has this happen and it turned a 12 hour storm into an 18-20 hour storm.

Yup I posted that earlier. Did the Euro have qpf amounts for that one like it does for this?
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The surface low gets tucked in right near the upper level low....usually right when that happens, there is very heavy qpf rates and the storm tends to temporarily slow even in an progressive pattern...Jan 12, 2011 has this happen and it turned a 12 hour storm into an 18-20 hour storm.

Got it - thanks.

 

I know people (Scooter and other mets) are saying to hold off until tomorrow, but are you honestly telling me if this started to go bad you wouldn't be disappointed?

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