The 18z OP RUN SHOWS HLB in FI but not falling for it and not taking much notice of this potential SSW and split of PV despite the potential of a reverse of zonal
winds....@10hpa! We have seen this before and been let down too many times!
We have been let down yet again! - past 6 days southern England esp Devon has seen daytime temperatures of 12 or 13c and night time temperatures between 9 and +13c. It's been very mild. We were due to have a colder snap from tomorrow but instead we are now (south ) are looking at temperatures of +10c - so a milder day again and as for next week, well instead of that easterly or north easterly we will have more of the same just mild and wet.
Many models such as EC 42 day, JMA, GFS, BCC, DMD, CFSv2, Met Office and more have all forecasted a colder and blocked February but this February has been anything but cold and blocked and there is no sign of this happening in the next 2 weeks. The CET is over +5c above the seasonal average and it's the 2nd week of February now.
Even if colder charts did appear in the model run- why should anyone bother reading them when they have been very inaccurate or unreliable at best? What is the point of pinning hopes on another SSW when the last one failed to deliver any cold despite the split, despite the reversal, despite the fact we are in an easterly QBO in combination with an El Nino winter...?! Despite the rapid increase or snow cover over Siberia and Scandinavia since early November?
This has been the most disappointing winter I can remember for cold and snowy weather fans. We have had set backs before but this tops it all - furthermore we can have snow/cold without a SSW anyway. On Thursday 30th November 2023 gave us 5hrs of heavy wet snow in the morning before it became sleety in Exeter and a high of +2.5c. This happened with a positive NAO/AO, cold stratosphere and without an SSW and in an Autumn month.
My guess has now been narrowed down further and I feel that it's either
1. The very warm September or
2. Positive IOD - Or maybe combination of them both because warm and dry September's very rarely precede cold winters. Last September 2023 it was exceptionally warm especially at the start with temperatures well into the upper 20's and low 20's in some southern parts. That's just erratic! The last colder than average September I think I can remember was in 2017 and the winter of 2017/18 was slightly colder than average - mostly down to the BFTE but there were cold spells after Xmas 2017. There was also colder snaps in January 2018 and February until BFTE started 3rd week of February 2018.
PS - this should be in the moan thread but do you see my point? - Anyway, no doubt we will get the snow and cold in March/April 2023 and in the year before last in April 2022 - as always!! 🙄
Edited by user
08 February 2024 00:36:34
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Reason: Not specified
Home Location - Kellands Lane, Okehampton, Devon (200m ASL)
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Sean Moon
Magical Moon
www.magical-moon.com