Months

The cold spell of 5-11th June 2024 in Central England

Of all months, June in Central England is the slowest to catch on to the fact that global temperatures have increased by close to, if not more than 1.5°C since the start of pre-industrial times. This is certainly true for the seven day period between the 5th and 11th of June in 2024, which was 17th coldest in the daily series that started in 1772. The mean temperature of 11.34°C was 2.31°C below the 1961-1990 LTALTA Long Term Average. This is usually defined as a 30 year period by the WMO. which made it the coldest period since 2001.

CET, Cold, June

The cold spell of 5-11th June 2024 in Central England Read More »

May 2024 – Weather Summary

May 2024 was a record warm month in Scotland. In the north of Scotland mean temperature were +3.5°C above the 1991-2020 LTALTA Long Term Average. This is usually defined as a 30 year period by the WMO., and beat the previous record set in 1889 by 1.6°C. 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 say the high mean temperatures were down to high overnight minimum temperatures, that may be true for the whole of 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., but not for northern Scotland where the mean maximum anomaly of +3.3°C was very similar to the mean minimum anomaly of+3.5°C.
May was also another rather dry month in NW Scotland with rainfall totals just 63% of the LTA. Although there were some very sunny days total sunshine for the month was just 85% of the LTA.

May, Scotland, Weather Summary

May 2024 – Weather Summary Read More »

Monday, 2 June 1975 – The day that snow stopped play

I’m guessing, but it looks like the snow that stopped play at Buxton was from heavy snow showers over high ground, enhanced by that trough close to Liverpool at 12 UTCUTC Coordinated Universal Time or UTC is the primary time standard by which the world regulates clocks and time. It is within about 1 second of mean solar time (such as UT1) at 0° longitude (at the IERS Reference Meridian as the currently used prime meridian) and is not adjusted for daylight saving time. It is effectively a successor to Greenwich Mean Time (GMT).. I remember the day quite clearly because I was a window cleaner back then in Sheffield. Needless to say, I didn’t get many houses done that Monday. 😉

This PDFPDF Portable Document Format (PDF), standardized as ISO 32000, is a file format developed by Adobe in 1992. of the day in question is courtesy of 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

junesnowfall2june1975
June, Snow

Monday, 2 June 1975 – The day that snow stopped play Read More »

April 2024 – Objective LWT

A fairly cyclonic start and end to April 2024 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, with an anticyclonic spell in the fourth week. There was a fair spread of wind directions during the month, but the second and third weeks were zonal W or SW’ly.

April, LWT

April 2024 – Objective LWT Read More »

April 2024 – Weather summary

My auto headline in my 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 gridded weather application for the weather in April 2024 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. was “Mild, wet and rather dull”, which I sums it up quite succinctly. I wrote the code for the auto-headline routine 10 years ago now and it still does a pretty good job. I tried to get an answer from Chat GPT about what it thought the weather had been like and all I got was this. 😜

April, Weather Summary

April 2024 – Weather summary Read More »

April 2024 – CET

I make April 2024 the 12th joint warmest since 1659 in Central England, and the warmest since 2020. The early warmth at the beginning of the month was cancelled out by a rare cold spell at the end. Despite the 30 year linear trend showing warming of +0.15°C per decade, the 10 year running average has been on a slide.

April, CET

April 2024 – CET Read More »

April 2024 – MSLP

The resident Icelandic low for April was displaced southeastward again this month by higher than average pressure across Greenland, and lower than average pressure in the northern North Sea, leaving the British Isles in a slack cyclonic westerly flow on the mean pressure chart.

Anomalies, April, MSLP

April 2024 – MSLP Read More »

March 2024 – Objective LWT

March 2024 was a mobile affair, and often quite cyclonic, with only brief anticyclonic interludes between before the arrival of the next low. 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. during the month was well below the LTALTA Long Term Average. This is usually defined as a 30 year period by the WMO., particularly in the last week.

Leave a Comment /
LWT, March

March 2024 – Objective LWT Read More »

February 2024 – Circulation

February 2024 was a cyclonic month across the 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., with a strong broad W’SW gradient that stretched from central Atlantic into northeast Russia. The Icelandic low was elongated further east into the northern Norwegian sea (-9 hPahPa A Hectopascal is the SI unit of pressure and identical to the Millibar), and the Azores high displaced to the southeast towards the Canaries (+4 hPa). 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. was below normal across the whole of IONA by as much as -9 hPA in northern Scotland.

Leave a Comment /
Circulation, February, MSLP

February 2024 – Circulation Read More »

Global temperatures long record run comes to an end

February 1948-2024 – DIYDIY Do It Yourself Series

The mean global temperature for February 2024 was pipped into second place by February 2016. This brings to an end the incredible eight month consecutive run of record high mean temperatures. The estimates are from my DIY series that I calculate from 6 hourly NCEPNCEP The United States National Centers for Environmental Prediction (NCEP) delivers national and global weather, water, climate and space weather guidance, forecasts, warnings and analyses to its Partners and External User Communities. gridded data. The daily means since the 12th of February took a bit of a nose dive (see image below) and allowed 2016 with a mean of 9.36°C to just nip ahead of 2024 with 9.34°C. I think my maverick calculations are unlikely to be duplicated when Copernicus publish their result in the coming week, but it will be a close run thing.

Daily Mean Temperature – DIY Series
Leave a Comment /
February, Global Temperatures, Global Warming

Global temperatures long record run comes to an end Read More »

January 2024 – Objective LWT

A strange old month with some rapid switches in cyclonicity. Mostly zonal but an anticyclonic second week and three named storms. The Gale Index 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. that I calculate from reanalysis data is not the same as the GIGI Gale Index that I generate from SYNOPSYNOP SYNOP (surface synoptic observations) is a numerical code (called FM-12 by WMO) used for reporting weather observations made by manned and automated weather stations. SYNOP reports are typically mad hourly and consist of groups of numbers (and slashes where data is not available) describing general weather information, such as the temperature, barometric pressure and visibility at a weather station. observations.

Leave a Comment /
Circulation, January, LWT

January 2024 – Objective LWT Read More »

Scroll to Top