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Everything posted by Robbie Garrett
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Latest for the Airports; Aerodromes Widespread low visibility and freezing fog affecting London TMA airfields & Eire throughout the remainder of the evening. EGKK ( London Gatwick) Arrivals regulated at reduced rates due to Weather ( low visibility) High delays, extended into the evening period. EGSS (London Stansted) Arrivals regulated due to weather (LVP's). Moderate to high delays. EGGW (London Luton) Arrivals regulated due to weather (zero rate until 0300) Very High delays.
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Whoever runs Southwark Council, Lambeth Council and Westminster Council didn't fancy gritting any of the pavements recently. Strangely the TfL roads were done last night, albeit with tiny bits of grit, only the high traffic volume is keeping these roads passable. Apparently Wandsworth Council gritted the pavements (And that's majority Tory Run?) Oh dear.
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Model Output Discussion - the cold has arrived
Robbie Garrett replied to Community Team's topic in Forecast Model Discussion
Interesting but very weak feature on Sunday night. Latest UKMO data on it's website giving light snow and a 60% chance for Central London. A fairly weak affair slow moving . +48hr +60hr -
Winter 2022/23 - Moans, Ramps & Chat
Robbie Garrett replied to cyclonic happiness's topic in Spring Weather Discussion
The one before the NHC feature, right? The jet over iberia should drag them into the iberias. Not towards the UK. -
That other LOW at +60 is going into Iberia? At +48 it is primed below the high. If you then look at our NHC feature on the map as it heads towards Europe, it's only a few hundred miles NNW of the previous low. I'd say it will follow a similar ENE track towards Paris area. From +96 to +120 its heading in a reasonable direction and could spawn a Surface Low (Alas Feb 2009) - I've drawn a line where the UKMO expects the LOW to head. For nostalgia, look at similar negative tilt low in Feb 2009.
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By the way, in the real world; what happens when the lows start heading our way with a Greenland block and cold air firmly established Quick look at the models, and they are already doing just that vs yesterday. For how erratic things are; +120HRS on the 06z +120HRS on the current run Then look to 180hrs how much divergence between the runs for the same time. Photoshop overlay of the Current (C) centre of the Atlantic LOW and 06z of the centre of the Atlantic LOW. Fantasy Island is currently +48HRS on the GFS!