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February 8-10 Snow Event


Hoosier

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At hour 192 on the GFS, is it showing 2 surface lows? One over Eastern Pennsylvania, and the other of eastern lower Michigan?   Wouldn't they phase at this point? Or, is this the one low transferring to the coast?  It looks curious, so I was wondering.

 

post-2790-0-76312600-1391291260_thumb.gi

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At hour 192 on the GFS, is it showing 2 surface lows? One over Eastern Pennsylvania, and the other of eastern lower Michigan?   Wouldn't they phase at this point? Or, is this the one low transferring to the coast?  It looks curious, so I was wondering.

 

attachicon.gifgfsUS_sfc_prec_192.gif

 

 

To me it looks like a low is trying to pop near the coast but doesn't happen.

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At hour 192 on the GFS, is it showing 2 surface lows? One over Eastern Pennsylvania, and the other of eastern lower Michigan?   Wouldn't they phase at this point? Or, is this the one low transferring to the coast?  It looks curious, so I was wondering.

 

attachicon.gifgfsUS_sfc_prec_192.gif

 

Now see, we need ^^^THAT type of storm to top off this season...

 

Probably too much to ask though. 

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00z GFS is showing a more southerly shift, I think.  Best QPF stays just barely to the south, it looks like the LAF crew cashes in this run.  Surface temps are cold all the way through S IN.  then at hour 240, what is that system coming ashore in the PAC NW? The COD GFS runs only to 240 hours, is that another potential storm system?

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If winter 2014-2015 is average, it's going to feel like a turd.

It's like driving 95mph down the expressway and then slowing down to the speed limit.... Feels like you are dragging @ss.

 

Good analogy. We are living the :weenie: dream, one storm right after another to track. We all remember going weeks at a time with nothing on the horizon. Good times.

 

Keep the analysis coming guys!

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Already big changes out west on the GFS. 12z run has a huge closed circulation at H5 over Idaho compared to a much weaker wave at 6z. If it wasn't for that downstream confluence I'd say get your umbrellas ready. As it is...this could be interesting.

yep big changes

http://www.instantweathermaps.com/GFS-php/showmap-conusncep.php?run=2014020212&var=PCPTHKPRS_1000-500mb&hour=168

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This may be a dumb question... But how is there this much moisture available? Especially after the storm hitting southern Missouri and Illinois tonight?

 

Well for one, neither the storm today/tonight nor the 4th-5th storm manage to really amplify and bomb out enough to completely work over the atmosphere, as they both simply get sheared off to the NE too quickly.

 

For two, look how far northward this ridge builds. You're talking an absolute stream of moisture with the orientation of those height contours. 

 

f162.gif

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Remember that the GGEM had a storm in this timeframe at one point...it's just lost it on recent runs. 

 

H5 comparison of both models show the GFS takes that retrograding piece of the PV and goes to town with its amplification. GGEM simply shears it out much earlier. 

 

Interesting thing about this storm is that because it's formed from a piece of the PV over central Canada, it's likely already been sampled well (or at least much better than had it come in off the Pacific). Hopefully that means less mayhem once we get it into D5 at least.

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