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Everything posted by Paul Sherman
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Yes the front the other day that dumped on Yorkshire was essentially a Warm Front that ground to a halt and the cold front crashed into the backside of it making it an Occluded front, where it Occluded the Precip went crazy around the Leeds area and higher ground and it ground to a halt giving about 10cm more snow than was forecast
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Dewpoints are key in this event just watch them spread in later this afternoon and overnight and go quite a bit negative. You only have to look at XCWeather or the NW Charts and see those -1c and -2c dewpoints already approaching the SE Kent Coast area coming in from NE France. You dont have to worry when Air Temps are at 2c for instance as any heavier Evaporative Cooling will drag the Isotherm down to 0c to 1c. We will then have Temps of 1c and Dps of -2c by tomorrow morning. By late morning as the milder air encroaches from the west the temps will rise to 3c and Dps of 1c and Snow on the back edge will turn to Sleet then Rain. In conclusion absolutely nothing like last weeks cold spell, different synoptics completely. Areas close to the coast are going to struggle though, sweet spots for me will be North Essex into Suffolk and Norfolk and also Chilterns and North Downs. Looking further ahead I will start to look at Models for the T240-t300 for the end of January from tomorrow as that is what I have always said, it has been amusing seeing the peaks and troughs of the Model Rollercoaster and there really was little point in looking at runs when the models were in chaos before they settle. I stand by what my thinking is that better snow chances will come as the Jet relaxes south last week of Jan giving way to Battleground Snow favouring the Midlands and North at first but when it relaxes far enough South it really will bring us into the game more. Keep the Faith people
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Push of colder air from the Continent Mick later this afternoon establishes overnight so when the system arrives tomorrow morning winds are southerly ahead of it meaning no warming of the air from the Sea (only inland about 10 miles from the South Coast) will be wrong side of marginal and hence you only really need -4c to -6c uppers A southerly more favourable than an easterly madness eh and what makes us love the weather so much
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Hoping we dont get too many more days like that this winter, absolutely rough with a strong raw wind off the North Sea and temps ranged from 2-4c all day with 36mm of rain taking the monthly total to 52.6mm. Absolute carnage on Road and Rail down here as well with major roads closed and the C2C Line closed at times today.
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Occlusion now running out of steam and Precip shrinking, just as things would become favourable as darkness comes lol like sucking lemons down here these days much the same as trying to get more than 5 strikes of Lightning in a storm in the summer. As the Vorticity this evening loses steam skies should clear from the North East. Darren Bent seems to think it will only get down to 0c so expect a few -3c tonight and if that happens at least some should be in for a frost tomorrow. Much drier tomorrow which should be a bit cheerier for us all. ROS (Roll On Spring)
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Maybe you should only comment when you have seen both sides of the story Daniel and not what 1 side wants you to hear. You were not privvy to the Private Messages Ed received which were worthy of a total ban and you only have to look at his response on twitter recently to see the language still being used. Can we move on now from the Steve Murr debate, he isnt posting on here anymore, if you want to go to one of his concerts then he is appearing on TWO or Twitter End of story lets get back to the weather now can we
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Quite a strong easterly now absolutely appalling weather. But tomorrow looks like a frosty start, cold day around 3c and dry could be some stubborn fog patches as well. We get the system through on Saturday then Sunday and Monday look like dry days which will cheer everyone up a bit. Temp is 4.2c and Dewpoint 3.8c
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Can see why the despondency in the Model Thread from the 00z Runs, GFS had an average of 4 Inches of Rain for the South and South East in the period from 14th to 29th Jan which would be a serious problem with the water table so high. Some of the more extreme ensembles had 150mm of Rain (6 Inches) and also the ECM out to Day 10 had multiple Low Pressures barrelling across Southern England as well. Not good