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February 21st - 23rd Winter Storm


Powerball

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  On 2/14/2013 at 11:31 AM, snowstormcanuck said:

Temps are the biggest thing in question in my mind at this point. A storm of this intensity is going to want to pump a ton of warm air on its eastern flank. It's essential the Mon-Tuesday storm deepens as much as is currently modeled over E Canada to lock in the confluence aloft/banana arctic high pressure at the sfc and impede any cutting.

 

f180.gif

 

That's a fear. With these storms, models rarely overdo WAA. On the other hand, they also tend to underdo wet-bulbing effects too.

 

At this point, the worst case scenario is probably the 06z DGEX.

 

On the other hand, the time period around February 22nd has been quite snowy for Detroit the last few years, so we have that bit of mojo going for us too.

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  On 2/14/2013 at 4:11 PM, gosaints said:

I agree its kind of sick that I am watching a model this hard this far out. 1st storm cutting further west.  Really has the look that the 2nd one has to be supressed..

 

nah...nothing about this says suppression...looks like another bowling ball coming up

 

gfs_namer_144_850_temp_ht.gif

gfs_namer_144_500_vort_ht.gif

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  On 2/14/2013 at 4:31 PM, Stevo6899 said:

Its great we have a beast to track but its going to be such a long 180 hours lol

 

Yeah my goodness the way we are speaking about specifics this far out it is going to be a mental challenge to weather the changes.  Thankfully this is such a massive system there will be some margin for error for many areas, not the tenuous rain/snow teetering that everyone has gone through this year if the system continues to be modeled this strongly.

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  On 2/14/2013 at 4:34 PM, Chicago WX said:

A little on the front end I guess, but intense WAA should flip us over quickly to plain rain. Of course getting into the details this far out...

Looks like a wide swath of 12"+ for Nebraska through WI. Very nice.

I doubt this ends up being a rainer here but hey, I could be wrong.

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  On 2/14/2013 at 4:34 PM, Chicago WX said:

A little on the front end I guess, but intense WAA should flip us over quickly to plain rain. Of course getting into the details this far out...

 

Looks like a wide swath of 12"+ for Nebraska through WI. Very nice.

 

Nice thing about this range is the sky's the limit. Dream big my friend. :)

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  On 2/14/2013 at 4:39 PM, Alek said:

FWIW, it trended warmer here as well (mixing to MBY) despite the earlier week storm being west. People shouldn't be discounting warm/wet solutions so easily.

Oh I am not saying that warm/wet isn't an option. If anything, the GFS gives us Northern IN folks some very heavy backlash snows. Either way, impressive set up.

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  On 2/14/2013 at 4:39 PM, Alek said:

FWIW, it trended warmer here as well (mixing to MBY) despite the earlier week storm being west. People shouldn't be discounting warm/wet solutions so easily.

Agreed, way too early to rule that out. We need the track to be more like the 00z euro to not have mixing/rain concerns north of I-80. The strength of the system as modeled on the GFS would likely result in stronger WAA than depicted. Also, warm sector severe potential looks pretty epic. Wouldn't be surprised at all if SPC highlights an outlook area with tonight's day 4-8.

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