Jump to content
  • Member Statistics

    17,754
    Total Members
    7,904
    Most Online
    Zetannard
    Newest Member
    Zetannard
    Joined

February 2013 mid-long range disco thread Part 2


yoda

Recommended Posts

  • Replies 1.6k
  • Created
  • Last Reply

Big snow euro d9

 

 

New 0z Euro says screw PD3........but hello Feb.22.  :snowman: .  Any Presidents born on Feb 22?

 

MDstorm

 

 

I know everyone is burned out from chasing mangled flakes and cold rain, but the Feb. 21-22 threat has real potential strictly based on the pattern.  Hang in there.  I've brought out Sir Isaac Newton (a meteorologic giant)  for good luck.

 

MDstorm

We've been down this road before.

How much sleep do we lose chasing this football before it gets pulled away, again? :rolleyes:

Link to comment
Share on other sites

:o at the signal on the ensembles for Feb 21-22. Don't usually see something so concrete at Day 9-10 on the ensembles, particularly the GFS.

But repeat after me...I will NOT get sucked in...I will NOT get sucked in...

Kinda like this weekend a week ago ? ;-)

Link to comment
Share on other sites

:o at the signal on the ensembles for Feb 21-22. Don't usually see something so concrete at Day 9-10 on the ensembles, particularly the GFS.

But repeat after me...I will NOT get sucked in...I will NOT get sucked in...

You better turn the clock back and not look at the ens but since you can't it too late. Ur all in already

Link to comment
Share on other sites

Any of you guys have a good website to educate me on what the phenomenon known as a "block" is? 

Here's just a simple layout of the different blocks you can see. You are probably talking about blocking for Noreasters though, so I will see if I can find something on that.

 

http://www.theweatherprediction.com/blocking/

Link to comment
Share on other sites

Jokes aside, the 22nd threat is sketchy. very bad @ 500 for a storm even though the gfs says there's a nice 850 low below us. But its way out there and the spacing between the cutter needs to be resolved to not a lot of analysis.

6z gfs pops a really nice -nao around the same time. 564dm ridge in the n atl nosing right into greenland. We're going to get an effective -nao eventually.Just hope it isn't late march so we get days and days of cool fog and drizzle.

An lastly, weekend threat is there. Looks like the best area near us is st mary's county with an inch or so. We'll have some nice mood flakes.

Link to comment
Share on other sites

Yes, I was mainly talking about Nor'easters.  Thanks for your help.

 

Read up on -NAO or Greenland block's. That will help you to understand how the block forces storms to the south and helps keep cold air in our area by buckling the jet stream. Once you get that concept read up on 50/50 lows and their position. Then you will have a general understanding of what it takes to get a big noreaster in our area. You will also realize why it is so hard to get a big storm down here and why it is much easier for NE to cash in.

Link to comment
Share on other sites

Thanks.  Would the ridge off the southeast coast constitute a block in the upcoming pattern, forcing storms to go up the east coast between it and the 50/50 low?  Sorry if this is a bit OT.  I can move it elsewhere if need be.

Occasionally they can help especially with suppressed systems. All depends on the setup. Normally you don't want to see a southeast ridge though if you are looking for a snowstorm in the mid Atlantic. New England is a different story though.

Link to comment
Share on other sites

Just looked at last nights euro. Big miller B. lol. Primary in ky while secondary developing on sc coast. Nice hp to the n and cad signal. Looks nice on paper but we have a horrendous track record with miller b's. Closed ull tracking from the plains to the ohv. As the recurring theme continues....more issues than Reader's Digest.

Link to comment
Share on other sites

From HM:

I find it interesting that back in late Jan, this was the discussion between Wes and me:

http://www.americanwx.com/bb/index.php/topic/38643-medium-range-long-range-thread/page-27#entry2051101

Basically, he wasn't really feeling the DC area with the first threat but we agreed that things would improve for the Mid Atlantic with time. Interesting how we both were on the fence about something being major in the Mid-Atlantic and it turned out that the storm was generally major north of NYC on 2/8-9.

The analogs once again strongly point to 2/20-2/22 and have for over a month now after the 2/8-10 threat. The in between dates I was always unsure of, going back and forth between snowy and meh. It looks like things will turn out snowier with tonight's light to moderate event and possibly this weekend (I agree with Adam that this isn't a "done deal" with the GFS/EURO ensembles, GGEM and UKMET offering a accumulating snow threat).

As discussed for the last few weeks, the 2/20-22 threat was contingent upon the general decline in the NAO due to the final stratospheric response and a leftover southern stream. If the NAO seemed real, this could borderline a KU for our area. Both the NAO and southern stream are being modeled at this time on most NWP. The only issue is the tropical forcing which may or may not trend towards a more unfavorable regime by this point, possibly limiting amplification and cold air availability. I'm currently leaning towards a significant storm on this date just under KU status for our region.

Link to comment
Share on other sites

Jokes aside, the 22nd threat is sketchy. very bad @ 500 for a storm even though the gfs says there's a nice 850 low below us. But its way out there and the spacing between the cutter needs to be resolved to not a lot of analysis.

6z gfs pops a really nice -nao around the same time. 564dm ridge in the n atl nosing right into greenland. We're going to get an effective -nao eventually.Just hope it isn't late march so we get days and days of cool fog and drizzle.

An lastly, weekend threat is there. Looks like the best area near us is st mary's county with an inch or so. We'll have some nice mood flakes.

22nd is very sketchy.  The only reason it goes to our south and gives us snow (as modeled) is because of the monster 50/50 and a rather potent -NAO/Baffin block.  That just squashes it south and turns it into a bowling ball.  How have our other Day 10 bowling balls worked out this year?  Storms that are neutrally tilted in Colorado usually don't turn out white for us.  The PNA and EPO ridges are gone at this stage, so it's all the 50/50 and NAO.  Very impressive storm signal on the ensembles, no doubt about that, but I would not be surprised in the least if this s/w eventually ends up as a cutter.  

Link to comment
Share on other sites

Occasionally they can help especially with suppressed systems. All depends on the setup. Normally you don't want to see a southeast ridge though if you are looking for a snowstorm in the mid Atlantic. New England is a different story though.

 

 

Read up on -NAO or Greenland block's. That will help you to understand how the block forces storms to the south and helps keep cold air in our area by buckling the jet stream. Once you get that concept read up on 50/50 lows and their position. Then you will have a general understanding of what it takes to get a big noreaster in our area. You will also realize why it is so hard to get a big storm down here and why it is much easier for NE to cash in.

 

Thanks to both of you.  Used to tracking hurricanes, not Nor'easters ;)

Link to comment
Share on other sites

Guess I'm buying a few more chips to throw into the 2-20 to 2-22 time frame?  I can 't help myself.  I'm a :weenie:   Honestly, shouldn't we all just look at at the EURO?  Skip all hugging of the GFS, NAM, etc., etc.  Would save ourselves some agony don't you think?

 

Euro hasnt been great this winter either. I dont think you can trust any of the models past 3 days.

Link to comment
Share on other sites

Euro hasnt been great this winter either. I dont think you can trust any of the models past 3 days.

Maybe not great, but most consistent?  Seems when the EURO locks, it plays out somewhere close to the lock.  The GFS could have a storm locked in for 100 days, but we know how that story would end. ;-)

Link to comment
Share on other sites

Maybe not great, but most consistent? Seems when the EURO locks, it plays out somewhere close to the lock. The GFS could have a storm locked in for 100 days, but we know how that story would end. ;-)

Euro has been pretty bad across the board with the current system. Yea, nam/gfs went nuts with precip but they did much better @ 500 and with precip and have been much more consistent. Last night's euro has dc is a precip hole. Zero precip. It's never had precip anywhere in our area with much more than .1.

When you have a spread in solutions the smart play is to go in between. That's been the standard for as long as I've been on the boards. Even with that, it looks like gfs/nam get the nod here.

Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.

Guest
This topic is now closed to further replies.
  • Recently Browsing   0 members

    • No registered users viewing this page.

×
×
  • Create New...