Spring [MAM] 2023: Objective LWT
Spring [MAM] 2023: Objective LWT Read More »
LWT
April 2023 – Objective Lamb Weather Type analysis
The six-hourly objective LWTLWT Lamb Weather Types are often used in UK-based analyses, with individual weather patterns based on the eight primary cardinal directions (N, NE, E, SE, S, SW, W, NW) plus cyclonic (C), anticyclonic (A) and unclassified (U) types. for April 2023 show a fairly anticyclonic month across the UKUK The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the continental mainland. It comprises England, Scotland, Wales and Northern Ireland.. There were two cyclonic interludes, the one on the 12th produced a gale index close to storm force, but once again the UKMOUKMO The Meteorological Office is the United Kingdom's national weather service. It is an executive agency and trading fund of the Department for Business, Energy and Industrial Strategy didn’t bother to name the offending low, leaving it to Meteo FranceMeteo France Météo-France is the official service of meteorology and climatology in France. to come up with the name ‘Noa’. The meridional index picked up two cold spells towards the end of the month across the north that gave a couple of days with light snow showers here in StrathpefferStrathpeffer Strathpeffer (Scottish Gaelic: Srath Pheofhair) is a village and spa town in Easter Ross, Highland, Scotland, with a population of 1,469..
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March 2023 – Lamb Weather Types
Another month in which the weather type changed dramatically from an anticyclonic easterly, to a cyclonic westerly, in the space of a day or so around the 11th of the month. Up until then the weather had been remarkably cold and wintery across the north of Scotland, with severe overnight frosts. Further south the weather after that remained cyclonic and very wet at times.
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Winter [DJF] 2023 – Objective LWT
I see there’s talk about how this winter has seen no named storms issued by the UKMOUKMO The Meteorological Office is the United Kingdom's national weather service. It is an executive agency and trading fund of the Department for Business, Energy and Industrial Strategy and it’s friends. That’s because the naming of storms is a subjective based system based on impact based warnings system, at least in the UKUK The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the continental mainland. It comprises England, Scotland, Wales and Northern Ireland.. True, it has been a quieter winter than average, especially in the first half of December, but that doesnt mean there’s been a shortage of candidates for named storms, but because nearly all only affected the north of Scotland and require the issuance of an amber warning, i.e. gusts of 90 mph or more, this didn’t happen. If the UKMO wanted, it could easily create an objective system based on regional NWPNWP Numerical weather prediction uses mathematical models of the atmosphere and oceans to predict the weather based on current weather conditions. data, then I think then, people might take it more seriously.
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Objective Lamb Weather Types 4 Jan – 4 Feb 2023
A drastic change from cyclonic to anticyclonic and in meridionality and cyclonicity from the 20th of January in the objective LWTLWT Lamb Weather Types are often used in UK-based analyses, with individual weather patterns based on the eight primary cardinal directions (N, NE, E, SE, S, SW, W, NW) plus cyclonic (C), anticyclonic (A) and unclassified (U) types. indices.
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December 2022 LWT
December started anticyclonic and the flow became very meridional till the 16th, before things dramatically changed. and for the rest of the month the circulation was predominately zonal west or southwesterly. There was at least one named storm possibility during December on the 19th, but this was summarily dismissed by the UKMOUKMO The Meteorological Office is the United Kingdom's national weather service. It is an executive agency and trading fund of the Department for Business, Energy and Industrial Strategy. The analysis showed that December had been 24% cyclonic and 9% anticyclonic, with S-SW-W 33% and N-NENE North East-E flow 26% of the time.
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Circulation | 4 Aug – 23 Nov 2022
The chart shows the mean MSLPMSLP Mean sea level pressure is the pressure at sea level, or, when measured at a given elevation on land, the station pressure reduced to sea level assuming an isothermal layer at the station temperature. over the last 16 weeks across IONAIONA Islands Of North Atlantic. Yes I know there's an island called Iona, but this is so I don't have to use the term 'British Isles' when referring to the whole of Ireland and the UK. and the corresponding objective LWTLWT Lamb Weather Types are often used in UK-based analyses, with individual weather patterns based on the eight primary cardinal directions (N, NE, E, SE, S, SW, W, NW) plus cyclonic (C), anticyclonic (A) and unclassified (U) types. for each of those weeks. It’s evident that the last anticyclonic spell occurred in the third week of September and since then the circulation has been mobile and usually from the W or SW.
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