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February Medium/Long Range Thread


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Just now, NorthArlington101 said:

There has been lots of careful measuring to make sure my measurements match others in the area…  so every little bit helps. Slant stick if you have to. 

Thank the lord you don't have any shortcomings. 

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1 minute ago, Blizzard of 93 said:

12z EPS is an impressive signal for 1 week out.

Here are the member low tracks & 48 hour snow mean to capture timing differences.

Some really low pressures with some of those individual member lows.

IMG_9090.png

IMG_9091.png

IMG_9092.png

I see some tucked lows in there :wub:

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12 minutes ago, NorthArlington101 said:

Heckuva 24hr signal 

IMG_2879.thumb.png.ee2167f647088ea78d0d37eaa09c0f58.png

50th percentile good too 

IMG_2880.thumb.png.a50fba778496cdd05b80b5a82344e4d0.png

That's the trajectory I want to see...also the jack zone...When 95 is the jack heading into the final end game us northerners are usually fine...its when the jack zone is southeast of DC that we are in trouble.  That right here is exactly where I want things at this range.  Now just wish the GEFS would get on board...but I'd rather have the EPS if I can only have one of em.  

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28 minutes ago, brooklynwx99 said:

EPS is even more amped than 00z. insane for a mean at this range

2024586722_ecmwf-ensemble-avg-namer-z500_anom-0009600(1).thumb.png.63326d37c8c8e21392a02fe47d10ad71.png

That's what I'm saying...this is really all or nothing imho. We are either going full-on phase with the tpv at the proper time or timing is tucked and we get a minor/moderate event that scoots ene as it grazes us. The latter would fit PSUs thinking also ie Nina climo, big storms, seasonal trends etc. If I had to bet I would also side with the latter. But once the tpv is in play, all bets are off.

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6 minutes ago, Blizzard of 93 said:

12z EPS is an impressive signal for 1 week out.

Here are the member low tracks & 48 hour snow mean to capture timing differences.

Some really low pressures with some of those individual member lows.

IMG_9090.png

IMG_9091.png

IMG_9092.png

STRONG MECS signal... I'll take the 996 just off Cape Map please.  

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To be clear I am NOT rooting for DC to get screwed...there is a path with a storm like this (unlike those progressive waves with their narrow west to east win zones) for the whole region to win...except Richmond F those guys.  No seriously no ill will but unless we get some crazy Jan 2000 type full phase capture negative tilt tuck scenario its almost impossible to get a Richmond to the PA line win...

 

But it is very possible to get a DC metro to PA line MECS result if the snow QPF max is centered near DC, places up here get higher ratios and oragraphic assistance and that's how you get a total win for almost everyone in here...again F richmond if they wanted snow they could move, kidding, unless they get snow and I don't and then not kidding.    

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9 minutes ago, Ralph Wiggum said:

I agree. And I think we are walking a razors edge here between a come NNE up the coast or be whisked ENE. One tiny shift with that h5 configuration would spell huge surface changes. 

My take, it was gonna be super close...I think anywhere east of 95 was gonna get crushed, full belt to a$$!  for places NW of 95 it was close...the storm was about to go nuts but how fast...the CCB was going to have to get cranking real quick and bend more NNW then N or NE from where it ended which is not impossible, it happens in full capture scenarios but how fast it happens would be the key to places like where I am and you are.  It would have to go full Jan 2000 or Feb 78 for it to work...but that run was about to be something close to that outcome honestly.  The bigger issue is how likely is it to actually go nuclear not just on a model run, remmeber the UK has a tendancy to do that crazy over amp thing sometimes.  It's teased us with some storms like this before...remember it had that one run of the coastal bomb in 2018 where it got a foot of snow back to Hagerstown.  

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2 minutes ago, psuhoffman said:

To be clear I am NOT rooting for DC to get screwed...there is a path with a storm like this (unlike those progressive waves with their narrow west to east win zones) for the whole region to win...except Richmond F those guys.  No seriously no ill will but unless we get some crazy Jan 2000 type full phase capture negative tilt tuck scenario its almost impossible to get a Richmond to the PA line win...

 

But it is very possible to get a DC metro to PA line MECS result if the snow QPF max is centered near DC, places up here get higher ratios and oragraphic assistance and that's how you get a total win for almost everyone in here...again F richmond if they wanted snow they could move, kidding, unless they get snow and I don't and then not kidding.    

One thing I learned when I was in college and used to listen to radio stations for weather info from Boston, Cleveland, Chicago, Pittsburgh, Richmond, Charlotte and Pokomoke City near Ocean City, for DC and BWI to get nailed and stay all snow, we need Richmond to mix to zr or sleet and Sby to go to rain. All snow in either of those places and we either completely fail or get fringed.

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