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SE Blizzards

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Posts posted by SE Blizzards

  1. Spot on, this has been evident since early this week.  Each day, the cold spell has continued to lengthen and the longer it can do so the better chance of something even more severe cropping up.  It's been a superb week of model watching!

     

    Yep, and even some of those recent ENS members that have been showing 'milder' 850 temps have mostly been down to HP sat over the top of us - which would undoubtedly mean it would be cold at the surface. Same applies to the 18Z Ens too by the looks of things.

     

    The outlook looks like a cold one to me, with not much sign of any change for at least the next week, maybe two.

     

    Edit: Pert 4 has lost the plot!

     

    http://www.meteociel.fr/modeles/gefs_cartes.php?code=4&ech=348&mode=0&carte=0

    • Like 4
  2. fair play ;)

     

    but as i mentioned its not strictly an outlier as it has support on its evolution upto t240. both the gfs 00z, 06z and 12z plus the ecm 00z and 12z agree as to the evolution upto t240, the mild chart i posted .

    ok theres loads of time for this to change, its far from nailed, but its what the current outputs suggest.

     

    Hmm, charts at t240 are all thwart with danger whether they show cold, mild or whatever, and i'm sure you of all people know that. In fact i'm struggling to remember when the last time an op chart at T240 actually verified? 

     

    Cold can be a bugger to shift once it's in and i suspect some of the op runs are being a tad progressive in shifting the cold. But of course that is only my opinion, and time will as ever tell  :)

    • Like 1
  3. dont know why this happened but my reply should be here

     

    A wild outlier? When the ecm 00z and 12z plus the previous gfs supported it And the noaa 8-14 anomaly chart supports it?

    It might well not become reality, i am aware of that, but a wild outlier it is not. :)

     

     

     

    Sorry mushy, i should of made myself clearer. I meant it is a wild outlier compared to most of it's own 12Z suite (GEFS)

  4. attachicon.gifRtavn2402.gif

    starting to firm up :)

     

    Interesting to note that the chart you posted of the GFS 12Z Op at Day 10 was a wild mild outlier. It only had support from the control. Most of the other GEFS members were significantly colder, with the mean not rising above -4 until the 13th Feb. That's 2 long weeks away.

     

     

    graphe3_1000_306_141___Londres.gif

     

     

    So i wouldn't be getting too excited just yet over the prospects of a return to milder conditions at Day 10 as clearly there is nowhere near enough evidence (as of yet) for this to happen.

    • Like 2
  5. Interesting that for London and the SE at least, the coldest period looks to start from Monday, with day maxima and night minima lower than before early next week. This reflects the sustained northerly flow veering northeasterly toward mid-week. Average along with EC and GFS ops show slight rise in temps next weekend - though big scatter by then. Certainly don't buy the 18z progressive return to more mobile Atlantic regime by then.

     

    Couldn't agree more Nick. GFS 18Z op seems to be way too progressive.

     

    Can't quite believe how good the 18Z Ens are. Some staggering members amongst them.

    • Like 4
  6. Nope, not seen any snow here in Essex since April 2013, so the snow drought continues here, but i did get to see half hours worth of heavy snow (which eventually turned to rain) in Northampton on Boxing day.

     

    I do feel though even with the lack of snow it has been far better than last Winters endless gales/rain/flooding etc.

  7. Another trend run. High pressure builds over the UK around day 9 or 10 and sticks around fairly strongly.

     

    Rtavn3603.gif

     

    Yeah, but i would suggest for most of FI on the 18z it would be a rather cold HP. (especially at the surface where -10 wouldn't be out of the question over some of the snowfields from Day 9 onwards. A very similar story on the ECM 12Z.

    • Like 2
  8. Hope mod's will allow me this one...

     

    Fergie just tweeted..

     

    How long will cold conditions stay once here? Latest UKMO diagnostics hint at less cold, more W'ly-influenced weather by end of next week. This change - as is often the case - may prove rather 'messy' (perhaps yielding a risk of further snow in *some* parts of UK)...

    Cont'd...but until then, we have high confidence on cold weather frm Weds PM thro rest of this week; & also possible for a few days nxt week

    • Like 5
  9. Kind of  but kind of not. My point all along has been that this risks being a 2-3 day wonder. The pressure out west from a powerful, non amplified and non bifurcated jet suggests to me from past experience considerable likelihood that the whole event will be shunted east nearer the time and we may then have a toppler. That's what the ensemble scatter seems at least to consider possible. Hopefully not and this digs in, and we see some proper upstream blocking in evidence.

    Well the 12Z ENS that you posted rather contradicts a 2-3 day wonder as they clearly show at least a week of cold weather!? That surely can't happen from 'a toppler', or can it? If so - that would be one of the longest topplers i've ever seen that's for sure.

     

    Anyway, all will be revealed over the next few days. 

     

    Let's hope the 18Z has been on an all-dayer and goes on to show a 1963 freeze.

    • Like 2
  10. Encouraging 12z runs. Here are a couple of reasons to keep champagne on ice until this goes truly into reliable zone.

     

    6z ensembles:

     
     
    12z ensembles:
     

     

    The point from those being that toppler territory and return to milder conditions from a transient northerly remain possible options, even probable ones. Let's hope the ensembles tighten up on the colder side to firm things up. Otherwise it continues to be a perilous path here.

     

    Ah, but the most important thing about those ENS is that the Cold signal is in the more reliable 'ish' (High res) time frame, the uncertainty after that is in the unreliable (Low res) time frame. I don't disagree that a toppler is one of the options on the table at present, but something more sustained is most certainly on offer too imo.

    • Like 1
  11. February is going to be special...

     

    You heard it first here! 

     

    :whistling:

     

    4 days on from this post and i've see nothing so far to change my mind on this one.

     

    I'm not forecasting a DEC 2010, but i do expect a fairly Cold Month overall, with plenty of snow opportunities to keep all the snow lovers amongst us happy...

     

    The start of Feb looks like beginning on a special note...

     

     

    ECU0-144.GIF?26-0ECU0-168.GIF?26-0ECU0-192.GIF?26-0ECU0-216.GIF?26-0

     

    gfs-1-192.png?12

     

    Finer detail like where it will snow etc will become clearer in the days ahead.

     

    Let's hope for many more upgrades and for the cold signal to grow each day.

    • Like 3
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