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http://www.nsf.gov/news/special_reports/autumnwinter/predicts.jsp Cohens forecast for this winter is out.
Originally Posted by: Solar Cycles
Tick tock. Tick tock.
Originally Posted by: SEMerc
I think he has since changed it
Marcus
Banbury
North Oxfordshire
378 feet A S L
Originally Posted by: Gooner
As did I. I predict that Winter 2013/14 will be mild and wet with substantial flooding on the Somerset Levels and in the Thames Valley.
I predict January and February will be severely cold and snowy everywhere.I will change it in due course to fit the conditions, which may be the total opposite of the above.
See, this LRF game is a doddle
Fareham, Hampshire 28m ASL (near estuary)
Stormchaser, Member TORRO
Verdict?
Berkhamsted
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"I'm not socialist, I know that. I don't believe in sharing my money." - Gary Numan
Originally Posted by: Brian Gaze
At least it gave us something to talk about in the "build up"
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Bin it.
Martin
Home: St Helens (26m asl) Work: Manchester (75m asl)
A TWO addict since 14/12/01
"How can wealth persuade poverty to use its political freedom to keep wealth in power? Here lies the whole art of Conservative politics."
Aneurin Bevan
Very good result for E and NE USA but didn't work out for NW Europe at all well
Richmond, Surrey
Little correlation with what happened, unfortunately:
http://www.cpc.ncep.noaa.gov/products/precip/CWlink/daily_ao_index/ao_index_ensm.shtml
One swallow doesn't a summer make, but the first real test of the OPI hasn't shown it in a good light...
It certainly hasnt been a mild winter, lots of snow for some places, and I would argue a large portion of the UK has seen snow falling, with another large amount seeing it settle.
This to me in my eyes despite being fairly benign for MBY, has been a more wintry than average winter (but only slightly) I think the OPI has probably delivered a signal.. but not a concrete answer. I think people are unfairly expecting snow on the ground for weeks on end.. that kind of scenario is a 1 in 20 yr event probably. This isnt reflective of the typical UK Winter.
The winter of 2014/15 should be considered a classic - similar to how the summer of 2014 was seen.
I think the OPI should be considered as a good indicator in the winter forecasts in future.
Weather station:
https://www.wunderground.com/personal-weather-station/dashboard?ID=IWIRRAL24#history
Originally Posted by: Retron
Very good summary IMO.
A different angle this, but how often does the AO climb all the way up to +6 as shown for a week's time...? Seems pretty extreme
https://twitter.com/peacockreports
2025's Homeland Extremes:
T-Max: 32.0°C 12th Aug | T-Min: -5.4°C 4th Jan | Wettest Day: 31.8 mm 18th Dec | Ice Days: None
Keep Calm and Forecast On
The mean AO index figure for winter 2014/15 was +0.85. This is one of the highest figures in the historic series going back to 1950. So the OPI was a very poor predictor of the AO index this year.
Highest DJF AO index mean figures
1988/89 2.69 1992/93 1.771989/90 1.251999/00 1.131991/92 1.091972/73 1.092006/07 1.001975/76 0.992007/08 0.862014/15 0.85
So winter 2014/15 saw the 10th highest AO index in the last 65 years
Originally Posted by: Stormchaser
The AO index exceeded +5 yesterday (7 March). http://www.cpc.ncep.noaa.gov/products/precip/CWlink/daily_ao_index/ao_index.html
Prior to yesterday the AO index had only exceeded +5 on 14 days since 1950. So this is indeed very unusual. The AO index has never reached 6 so it will be interesting to see what happens over the next few days. All previous instances of a >+5 index have been in Dec, Jan or Feb.
Highest daily AO figures on record