Jump to content
  • Member Statistics

    17,587
    Total Members
    7,904
    Most Online
    LopezElliana
    Newest Member
    LopezElliana
    Joined

December Obs and Banter


WinterWxLuvr

Recommended Posts

  • Replies 1.9k
  • Created
  • Last Reply

Can't say I'm surprised at all but today's runs could not really have gone much worse. Rainy Christmas followed up with a rainstorm. Good times!

Yeah, no surprise, honestly. People seem to forget that it really doesn't snow here very often. Everything, and I mean, every little thing, must be lined up just right, for it to snow here. If you see a model 10 days out showing a massive snowstorm, with tons of cold, 50/50 low, blocking, et all, you're still more likely to be correct with a forecast of rain or dry, than you are forecasting snow.

We seem to be in a continuing pattern where it doesn't seem able to snow in this area. Until I see evidence of this changing, I'm not going to get excited over anything I see in the models, at least until model concensus is reached a day or two before the event. And even then, we still manage to snatch defeat from the jaws of victory more often than not, so I will be skeptical.

We have cold air, so that's good. But we also seem to be in a pattern where inland storm tracks are repeating. I wouldn't be shocked to see a repeating pattern of cold/dry, followed by a mild/rain, followed again by cold/dry.

Link to comment
Share on other sites

I really like the general setup for 12/29 and then again on 1/2. I guess I shouldn't be, but I'd be shocked if we came out of the next 10 days without a significant snowstorm.

NAO is supposed to go positive for the first chance which is probably another reason not to get too excited about it.

Link to comment
Share on other sites

NAO is supposed to go positive for the first chance which is probably another reason not to get too excited about it.

The ao correlates a better than the nao with snow (4 inch or more events) as the blocking measured by the nao index is between iceland and the azores. The place we need the same type of block is between baffin to Greenland with lower heights and a nice vortex to its south. That configuration can be present when the NAO is positive. That configuration was present on last night's D+11 superens mean so I'm not going to yet poo poo the potential. Still we live in DC so any long range threat is suspect.

Link to comment
Share on other sites

I have a general observation. Having not grown up in the Mid Atlantic I cannot 100% back my theory but here I go.

From the past winters of living in MD I have noticed that we get the winter weather off of systems that generally come up from the S/SW with an ample supply of moisture out of the Gulf. And as long as we have the cold temps in place is when we get snow. The systems that come from the W/NW have at best been a 50/50 shot. Of course this is the opposite of what I grew up with in NW Ohio. Where the systems coming in from the Rockies and N/NW would give us a better shot. I am in no way scientific about this but it is just from general observation as I stated above. Am I correct in this observation or off the mark? I know way more goes into weather and I am still learning but was curious.

Link to comment
Share on other sites

It's so funny...sitting here drinking coffee...watching NFL stuff....wondering if the GFS will show signs of a jumper again...I think if it does even if it is rain it will be a sign that things are shifting again...if it still shows one low driving towards Cleveland then well....on to the euro...lol

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...