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was dominated by high pressure, leading to dull, dry and mild conditions with very low sunshine levels. This ‘anticyclonic gloom’ persisted until mid-month, at which point there was a shift to lower pressure brought by an Arctic maritime airmass. This airmass resulted in colder temperatures and wintry

and rain has also been issued for Northern Ireland from Saturday afternoon through to the early hours of Sunday morning. Gusts could reach up to 65 mph while rainfall totals could reach 40-50 mm over higher ground in the north. Low pressure will drive a wide area of rainfall and gusty winds across the UK

Heavy rainfall and flooding in Cornwall, November 2010 Very heavy rainfall in the early hours of 17 November resulted in severe flooding to parts of Cornwall. A deep area of low pressure brought strong winds and heavy rain overnight on 16/17 November, with a line of intense rainfall developing

in the Central Arctic and in the Laptev and Kara Seas north of Siberia (Figure 4a). The most notable feature of the summer circulation was a high-pressure ridge over Siberia, most prominent from mid-June to mid-July. As well as circulating very warm air into the Arctic Ocean itself, this caused a notable

A complex mix of snow, heavy rain, strong winds and possibly freezing rain will mark an end to the cold spell that has been in place across the UK since the start of the year. A low pressure system to the northwest of the UK will drive milder air and strong winds across the UK on Sunday. With cold

across northern Scotland, and we’ll see the start of some unsettled weather for all parts as an area of low pressure arrives from the Atlantic.   A Yellow National Severe Weather Warning for snow and ice has been issued for the north of Scotland and the Northern Isles from Sunday afternoon to Monday

of Atlantic low pressure systems and strong winds and heavy rain of most note. Storm Ciaran on 1st to 2nd was an exceptionally severe storm for the Channel Islands and northern France but fortunately a 'near miss' for southern England. Further south, winds were comparable to the 'Great Storm' of 16

further strong winds and heavy rain, with significant disruptive snow falls across Highland Scotland and winds gusting at over 70Kt (81mph) at a number of stations. The year closed out with yet another Atlantic low pressure system bringing further very wet and windy weather. Overall, Scotland bore

reanalysis suggesting that upper air temperatures were the warmest on record. The summer saw frequent strong occurrences of the Arctic Dipole Anomaly, a pattern characterised by high pressure over Greenland and the North American Arctic, which has been historically associated with above average sea

Gust GEN Generally GND Ground GR Hail (5 mm or more in diameter) GS Small hail or snow pellets Return to top H H High pressure centre HPA Hectopascals (= Millibar) HVY Heavy HZ Haze Return to top I IAVWOPSG  International Airways Volcano Watch Operations Group IC Ice crystals (diamond dust) ICAO