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Everything posted by Tracy Flick
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Model Output Discussion - cold spell to end Autumn
Tracy Flick replied to Paul's topic in Forecast Model Discussion
Probably the first time I've not wanted the jet to be cut off. -
Model Output Discussion - cold spell to end Autumn
Tracy Flick replied to Paul's topic in Forecast Model Discussion
Springtime in Poland, wintertime in Germany? It's like The Producers, but in reverse. -
Model Moans, Ramps and Banter
Tracy Flick replied to Polar Maritime's topic in Forecast Model Discussion
With the ridging displaced westward it could still be wet though... just cold rain rather than warm rain. -
SE and East Anglia generalweather discussion 08/11/2017 onwards
Tracy Flick replied to Captain Shortwave's topic in Regional
The professionals don't base their forecasts on the GFS because they have better resources. But this forum loves the GFS because it's 4 times per day, goes out to +16 days and is free of charge. It might turn colder week after next however, so that's maybe causing some excitement. Well that's my take anyway. -
Model Output Discussion - cold spell to end Autumn
Tracy Flick replied to Paul's topic in Forecast Model Discussion
The EC looks believable given what others have been saying. e.g. there's some amplification of the Atlantic ridge but not a massive amount. (Isn't that what GP was saying?) -
Model Moans, Ramps and Banter
Tracy Flick replied to Polar Maritime's topic in Forecast Model Discussion
It will be correct. And it will continue to forecast mild through the rest of the winter and will continue to be correct. And both EC and GLOSEA will forecast a mild winter next year and they will be correct. However, at some point in the next 5 years one of the models will forecast a proper cold spell and it will turn out to be incorrect. -
Model Output Discussion - cold spell to end Autumn
Tracy Flick replied to Paul's topic in Forecast Model Discussion
Some members still offer a northerly or north-easterly. Some don't. -
Model Output Discussion - cold spell to end Autumn
Tracy Flick replied to Paul's topic in Forecast Model Discussion
The JMA at 228 is... curious. -
Model Output Discussion - cold spell to end Autumn
Tracy Flick replied to Paul's topic in Forecast Model Discussion
Last I heard ECMWF uses spectral methods whereas GFS doesn't. I don't know about UKMO but I don't think they do either. I'd imagine solving all those basis expansions is hugely computationally expensive, but at a theoretical level it is a huge difference. -
Model Output Discussion - cold spell to end Autumn
Tracy Flick replied to Paul's topic in Forecast Model Discussion
The JMA and the EC are both brief northerlies in week 2 before everything washes eastwards. I fear the GFS will be very different tomorrow unfortunately. -
Model Moans, Ramps and Banter
Tracy Flick replied to Polar Maritime's topic in Forecast Model Discussion
All this makes me think of Werner "It Is Not A Significant Bullet" Herzog and the Burden of Dreams. "We have to get acquainted to this idea that there is no real harmony as we have conceived it. But when I say this, I say this all full of admiration for the [atmosphere]. It is not that I hate it, I love it. I love it very much. But I love it against my better judgement." -
Model Output Discussion - cold spell to end Autumn
Tracy Flick replied to Paul's topic in Forecast Model Discussion
The JMA is also on board with this theme. It's remarkable that 6 hours ago the GEFS never really offered this. -
Model Output Discussion - cold spell to end Autumn
Tracy Flick replied to Paul's topic in Forecast Model Discussion
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Model Output Discussion 01/09/17
Tracy Flick replied to phil nw.'s topic in Forecast Model Discussion
Well if this is the definition a northern block then it's a northern block. night all -
Model Output Discussion 01/09/17
Tracy Flick replied to phil nw.'s topic in Forecast Model Discussion
I like extreme weather... but yeah the flooding and wind damage wasn't good. Also, today's GEFS output is suggesting northern blocking isn't favoured. Something is working against it, not just averaging of data. But things change quickly, so... -
Model Output Discussion 01/09/17
Tracy Flick replied to phil nw.'s topic in Forecast Model Discussion
Good, but the ridge seems reluctant to amplify any further north: by 240h it seems to be retreating back toward its comfort zone of the Azores. It'd be nice if one of the ridges would amplify to Greenland and actually stick there. -
Model Moans, Ramps and Banter
Tracy Flick replied to Polar Maritime's topic in Forecast Model Discussion
It's been almost a full year since Britain last had a mild winter. So to be fair, a mild winter is long overdue. -
Model Output Discussion 01/09/17
Tracy Flick replied to phil nw.'s topic in Forecast Model Discussion
The JMA is chilly from Tuesday all the way to +264h. Unfortunately it's mostly dry too. 216h and 264h: -
Model Output Discussion 01/09/17
Tracy Flick replied to phil nw.'s topic in Forecast Model Discussion
Do experienced members consider this to show genuine northern blocking, or a strong mid-latitude Atlantic ridge? -
Model Output Discussion 01/09/17
Tracy Flick replied to phil nw.'s topic in Forecast Model Discussion
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Model Output Discussion 01/09/17
Tracy Flick replied to phil nw.'s topic in Forecast Model Discussion
GFS and UKMO aren't really that different, locally at least. The UKMO high is slightly farther south, but I doubt it's critical in the grand scheme of things going forward(?): -
Model Output Discussion 01/09/17
Tracy Flick replied to phil nw.'s topic in Forecast Model Discussion
Both GFS and ECM are suggesting proper northern blocking now. As others have said... what could possibly go wrong? -
Model Output Discussion 01/09/17
Tracy Flick replied to phil nw.'s topic in Forecast Model Discussion
The JMA at 192h is GFS-ish. -
Model Output Discussion 01/09/17
Tracy Flick replied to phil nw.'s topic in Forecast Model Discussion
The farthest reaches of the GEFS 00z (like the 18z) continue to ignore low heights around Greenland. Like Sonny Landham in Predator, it senses a disturbance in the shadows but doesn't know what it is yet. -
Model Output Discussion 01/09/17
Tracy Flick replied to phil nw.'s topic in Forecast Model Discussion
The problem with these sort of setups is they tend to degenerate to 12 hour topplers as the day nears: Hoping I'm wrong.