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lorenzo

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lorenzo last won the day on October 23 2016

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About lorenzo

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    @scotlandwx
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    Scottish Weather & Regional Banter. Teleconnections, ENSO, MJO, Research Papers & Learning, Hurricanes, Atlantic Lows & Windstorms, Stratosphere Monitoring
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    Crystal Clear High Pressure & Blue Skies

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  1. Bewildering evening ahead.. the SPC advisory and replies are sobering. Radar link here http://catalog.eol.ucar.edu/torus_2019/radar
  2. Thread title is Cold hunt - models and banter Not... Cold hunt - models and bickering It's easy to hide the poor additions to the thread , so don't waste your time adding them.
  3. Well actually it isn't, and that's kinda the point. But metaphorically speaking - I hear you.
  4. I think in as much as the same way as the last 48 hours threw out solutions with 1 or 2 clusters, which then moved to 4,5 or 6 clusters as the NWP programmed in the various impacts of the US storm and resulting pattern on the Canadian Lobe of Vortex and Jet profiles. At this point in time this morning the output isn't seeing such entropy and has dialled in on something else... In retrospect it may be the case we look back on the disappointment of losing the initial quick route to cold charts as a bump in the road. As noted above, the encouragement arrives from this being the direction of travel and also has good synergy with with weekly forecasts EC has produced.
  5. 00z Iceland look... massive signal there...
  6. Alice was told that there wasn't much Jam left in the Jam Jar, and when she wanted her Jam today was disappointed to find out this was all that was left.. Thankfully Alice was patient and found this hiding down the back of the ECM.
  7. Hopefully someone will pop them up when the Icelandic site updates.. sorry nor sure what time that is at.
  8. Would normally not put a one liner on without charts - however given the paywall status of the EC Ens and clusters, all I can say is think - weeklies. Today will be a good day The roller coaster is firmly back on the tracks and heading for the winter theme park.
  9. Interesting morning and really encouraging IMO in terms of the set of model suites we were looking at on Thursday and Friday being chipped away at then collapsing into something else late Friday into Saturday morning. Given the up close review of each run, and I get that, it is a time where the deck remains stacked in our favour. However, given the long lead on the SSW, the count down to it happening, the displacement and then elongation in time of the SSW via the vortex split. I think this has generated fatigue, it's certainly been a long watch! The AO profile overall, whilst an output vs. a driver shows the trend and this looks solid as Jan ends, this is supported by both the Strat Temp Anoms and NAM 'paint drip'. There have been hints of the AO dropping to -3 and 04 SD, without 'fully' getting there. I think it is an eventuality vs a jam tomorrow. Indeed that phrase is getting used a lot, to contextualise - the after effects of an SSW 'will be' jam tomorrow given the lead times for imprints on the atmosphere.. AAM and GWO dynamics illustrated below, relative AAM courtesy of torque activity, gives a steer on expecting to see blocking regimes manifest, as does the SSW, so a double ingredient here. From this morning's GFS we can see from around Day 9 both the AO starting to drop again and also blocking coming online over Greenland, c 26th is where the trend commences to elevate heights here, and there is a lot of energy firing towards Nuuk to start causing the Arctic profile to shuffle. ECM goes back to something akin to the earlier ENS and just needs some sharper inflection to do similar damage and mirror it's weeklies. I would say the US Storm, impacts on the jet, careering into the NE Canadian portion of the vortex as we all have seen collapsing the nirvana charts on offer at the end of last week has played through the system now, models catching onto again the true sense of direction. That wave guide remains, the signals for HLB remains, the down welling remains, the AO tendency remains, the AAM increase is there. Whilst the hyperbole of no definitive easterly programming from 210 down to 0 hrs created despondency, there is a lot that remains bloody good for - the end of January with a ton of winter left.
  10. The low hanging around the North East Coast retains the best of the coldest temps as the run moves along presumably making it harder to shift. will await a met explaining fully in a more articulate manner.
  11. What's that - 6 of them lined up at 60 hrs out..! that low sure is fond of the NE Coast line, churns away in there.. Ciel wrt to down welling.. 'paint drip' expression of the slow progression of the NAM, from below u can see the obstacles since the SSW and the eventual connection to the trop. I think the initial arctic outbreak impacting Austria was programmed before / during SSW.
  12. Cracking pics Ravelin - GFS 12z looking very good for NE Scotland..
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