Models vs. Facts

From a post on the Watts Up With That? blog comparing official predictions about the upcoming winter by the UK Met (meteorological) office, and the facts about the actual winter. This should make you awfully nervous to take any "long term" weather (or climate) forecast seriously:

Met Office 2008 Forecast: Trend of Mild Winters Continues

Met Office, 25 September 2008: The Met Office forecast for the coming winter suggests it is, once again, likely to be milder than average. It is also likely that the coming winter will be drier than last year.

Reality Check: Winter of 2008/09 Coldest Winter For A Decade

Met Office, March 2009: Mean temperatures over the UK were 1.1 °C below the 1971-2000 average during December, 0.5 °C below average during January and 0.2 °C above average during February. The UK mean temperature for the winter was 3.2 °C, which is 0.5 °C below average, making it the coldest winter since 1996/97 (also 3.2 °C).

Met Office 2009 Forecast: Trend To Milder Winters To Continue, Snow And Frost Becoming Less Of A Feature

Met Office, 25 February 2009: Peter Stott, Climate Scientist at the Met Office, said: “Despite the cold winter this year, the trend to milder and wetter winters is expected to continue, with snow and frost becoming less of a feature in the future.

“The famously cold winter of 1962/63 is now expected to occur about once every 1,000 years or more, compared with approximately every 100 to 200 years before 1850.”

Reality Check: Winter Of 2009/10 Coldest Winter For Over 30 Years

Met Office, 1 March 2010: Provisional figures from the Met Office show that the UK winter has been the coldest since 1978/79. The mean UK temperature was 1.5 °C, the lowest since 1978/79 when it was 1.2 °C.

Met Office July 2010: Climate Change Gradually But Steadily Reducing Probability Of Severe Winters In The UK

Ross Clark, Daily Express, 3 December 2010: ONE of the first tasks for the team conducting the Department for Transport’s “urgent review” into the inability of our transport system to cope with snow and ice will be to interview the cocky public figure who assured breakfast TV viewers last month that “I am pretty confident we will be OK” at keeping Britain moving this winter. They were uttered by Transport secretary Philip Hammond himself, who just a fortnight later is already being forced to eat humble pie… If you want a laugh I recommend reading the Resilience Of England’s Transport Systems In Winter, an interim report by the DfT published last July. It is shockingly complacent. Rather than look for solutions to snow-induced gridlock the authors seem intent on avoiding the issue. The Met Office assured them “the effect of climate change is to gradually but steadily reduce the probability of severe winters in the UK”.

Met Office 2010 Forecast: Winter To Be Mild Predicts Met Office

Daily Express, 28 October 2010: IT’S a prediction that means this may be time to dig out the snow chains and thermal underwear. The Met Office, using data generated by a £33million supercomputer, claims Britain can stop worrying about a big freeze this year because we could be in for a milder winter than in past years… The new figures, which show a 60 per cent to 80 per cent chance of warmer-than-average temperatures this winter, were ridiculed last night by independent forecasters. The latest data comes in the form of a December to February temperature map on the Met Office’s website.

Reality Check: December 2010 “Almost Certain” To Be Coldest Since Records Began

The Independent, 18 December 2010: December 2010 is “almost certain” to be the coldest since records began in 1910, according to the Met Office.

Met Office Predicted A Warm Winter. Cheers Guys

John Walsh, The Independent, 19 January 2010: Some climatologists hint that the Office’s problem is political; its computer model of future weather behaviour habitually feeds in government-backed assumptions about climate change that aren’t borne out by the facts. To the Met Office, the weather’s always warmer than it really is, because it’s expecting it to be, because it expects climate change to wreak its stealthy havoc. If it really has had its thumb on the scales for the last decade, I’m afraid it deserves to be shown the door.

A Frozen Britain Turns The Heat Up On The Met Office

Paul Hudson, BBC Weather, 9 January 2010: Which begs other, rather important questions. Could the model, seemingly with an inability to predict colder seasons, have developed a warm bias, after such a long period of milder than average years? Experts I have spoken to tell me that this certainly is possible with such computer models. And if this is the case, what are the implications for the Hadley centre’s predictions for future global temperatures? Could they be affected by such a warm bias? If global temperatures were to fall in years to come would the computer model be capable of forecasting this?

A Period Of Humility And Silence Would Be Best For Met Office

Dominic Lawson, The Sunday Times, 10 January 2010: A period of humility and even silence would be particularly welcome from the Met Office, our leading institutional advocate of the perils of man-made global warming, which had promised a “barbecue summer” in 2009 and one of the “warmest winters on record”. In fact, the Met still asserts we are in the midst of an unusually warm winter — as one of its staffers sniffily protested in an internet posting to a newspaper last week: “This will be the warmest winter in living memory, the data has already been recorded. For your information, we take the highest 15 readings between November and March and then produce an average. As November was a very seasonally warm month, then all the data will come from those readings.”

You would think with that much egg on their fact the UK Met office would throw in the towel. But no, true believers don't give up. They just issue another forecast based on another run of the model!