Jump to content
  • Member Statistics

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

2/19 East Coast Winter Storm Threat (Part 2)


OKpowdah

Recommended Posts

NAM still only out to 27 :axe:

Thru then precip shield down south looks a bit north and more juicy than 33 on 12z, but we shall see what the next few frames have to say. Minute differences at h5 so far except a weaker northern stream and maybe the southern wave the slightest bit slower. out to 30 now.

Thru 30 it looks to me as if the storm will head a bit north of 12z, but I want to see a few more frames before making a more definitive call on that. Hard to tell since confluence looking pretty strong so far on the Canadian vortex, we'll see.

Link to comment
Share on other sites

  • Replies 1k
  • Created
  • Last Reply

Thru then precip shield down south looks a bit north and more juicy than 33 on 12z, but we shall see what the next few frames have to say. Minute differences at h5 so far except a weaker northern stream and maybe the southern wave the slightest bit slower. out to 30 now.

Might be farther north this run, but not much. Still early, and its the 18z nam anyway.

Link to comment
Share on other sites

Yeah well when the science part of it fails,you have to use your gut feeling...And yesterday and today,clearly shows that the models cannot handle these short waves and how to incorporate them into the forecast...They are computer generated models,computers screw up,bad data,..I apologize if you don't like my view...

I like your view. I'd like it more if it had validity beyond a wish. But you're right...things can change. However the computing power of the 12Z suite is pretty substantial albeit with moving pieces.

I still think you have HSK and I reach for my rx pad every time I see your avatar.

Link to comment
Share on other sites

I like your view. I'd like it more if it had validity beyond a wish. But you're right...things can change. However the computing power of the 12Z suite is pretty substantial albeit with moving pieces.

I still think you have HSK and I reach for my rx pad every time I see your avatar.

for all those wondering...

(as we wait for NAM, totally OT but "storm mode" is nominal right now)

post-3106-0-89576300-1329426392.gif

Link to comment
Share on other sites

srefs are interesting. as has been the case with the gfs ensembles there are a couple of members that are really amped and NW with just about everything else completely out to sea. the result is a unique looking precip and snow prob distribution. with relatively similar looking odds for .25 and .5 precip (almost 1" as well really) over the s coast and a similarly funny looking snow probs over the MA and NE with low probs for 1, 4 and 8"

Link to comment
Share on other sites

srefs are interesting. as has been the case with the gfs ensembles there are a couple of members that are really amped and NW with just about everything else completely out to sea. the result is a unique looking precip and snow prob distribution. with relatively similar looking odds for .25 and .5 precip (almost 1" as well really) over the s coast and a similarly funny looking snow probs over the MA and NE with low probs for 1, 4 and 8"

Yeah, it really shows the two outliers even looking at the snowfall prob map. For instance, NW NJ only has slightly higher probs for 1" then 4" and 8" as you mentioned.

Link to comment
Share on other sites

Yeah, it really shows the two outliers even looking at the snowfall prob map. For instance, NW NJ only has slightly higher probs for 1" then 4" and 8" as you mentioned.

yeah it's not too often you see low 1" probs and low 4" probs in the same area like that - usually it's the 80% vs 40% vs 10% type of distribution.

but does happen sometimes in situations like this with a big model split. you end up with a couple of models running the whole show so-to-speak.

Link to comment
Share on other sites

srefs are interesting. as has been the case with the gfs ensembles there are a couple of members that are really amped and NW with just about everything else completely out to sea. the result is a unique looking precip and snow prob distribution. with relatively similar looking odds for .25 and .5 precip (almost 1" as well really) over the s coast and a similarly funny looking snow probs over the MA and NE with low probs for 1, 4 and 8"

They become sort of useless, but I suppose it illustrates to the forecaster that there are a variety of solutions. Of course it's up to he or she to recognize if they are of any value.

Link to comment
Share on other sites

They become sort of useless, but I suppose it illustrates to the forecaster that there are a variety of solutions. Of course it's up to he or she to recognize if they are of any value.

yeah to me it actually highlights how careful you have to be with ens means. the sref probs are better closer in when the solutions are fairly similar and you can start to work through the subtle differences etc. but in this case...it's like 5 or 6 out of 15 or 21 or whatever the number is really screwing with the average.

meanwhile...nam looks like it's going to screw DC too. LOL.

Link to comment
Share on other sites

Archived

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

  • Recently Browsing   0 members

    • No registered users viewing this page.

×
×
  • Create New...