February 2010 Coldest since 1996. Coldest winter quarter since 1978–1979.
February 2010 Coldest since 1996. Coldest winter quarter since 1978–1979.
复制标题
2010 年 2 月 1996 年以来最冷。1978-1979 年以来最冷的冬季。
作者：
Philip Eden
这是 138 年有记录以来第四个最东风的二月，仅次于 1986 年、1947 年和 1895 年。在经历了多变的开始之后，第二周基本上是反气旋性的，但该月的下半月是异常气旋性的，从 15 日晚到 28 日晚，英国大部分地区的气压持续低于 1000 毫巴。尽管如此，这是一个无大风的月份，没有报告阵风超过 50 节。前六天，大西洋扰动横扫全国，带来频繁降雨，北部地区还下雪。苏格兰有时很冷，达尔威尼（因弗内斯郡）3 日早些时候记录到 10.1 摄氏度，但南部地区相当温和，5 日英国皇家植物园（伦敦）记录到 12.3 摄氏度。相比之下，勒威克（设得兰群岛）从 1 日到 4 日积雪深 14 到 18 厘米。7 日到 14 日，高压在苏格兰之间缓慢移动。冰岛和寒冷的东北气流覆盖了该国。许多地区每晚都会有轻微到中度的霜冻，东部和南部地区经常下雪，但降雪量通常较小：白天最高气温通常在 2 至 5 摄氏度之间，因此除高地地区外，雪不会在地面上停留太久。不过，东肯特郡和东苏塞克斯郡11日降大雪，福克斯通后方山丘积雪达25厘米。英国西部地区本周大部分地区天气干燥且阳光明媚，韦茅斯（多塞特郡）仅11日就报告了9.5小时。 14日至16日期间，一股加深的低气压从冰岛向东南缓慢移动，然后向南移动到苏格兰，带来了更普遍的雨雪天气，高地上又出现了积雪。这带来了长时间的气旋期，带来了非常不稳定的天气，大多数日子都会下雨或下雪：值得注意的降雨总量包括 15 日和 16 日邱园和汉普斯特德（均为伦敦）的降雨量为 31 毫米。 18日、21日和22日，威尔士、中部地区、东安格利亚和北部各县的许多地区也出现了一些破坏性的大雪，受灾最严重的地区积雪深度为10至15厘米。然而，17日至23日期间，英国北部和西部的大部分地区阳光充足，但夜间霜冻严重。 Dunstaffnage（阿盖尔）在截至 23 日的六天内记录了 48 小时的阳光，而同一天苏格兰高地的隔夜最低气温广泛在摄氏 10 至 18 摄氏度之间，其中 23 日早些时候，布雷马（阿伯丁郡）的最低气温为摄氏 19.2 度。 24日至26日期间，持续的大雪影响了苏格兰高地，阿维莫尔（因弗内斯郡）的降雪量为44厘米，格伦科（阿盖尔郡）的降雪量未经证实为80厘米。然而，苏格兰的主要人口中心基本上没有受到影响，戴斯（阿伯丁郡）在 48 小时内录得 58 毫米的降雨量。 24 日至 27 日期间，南部地区变得更加温和，24 日格雷夫森德/布罗德尼斯 (Gravesend/Broadness) 气温为 12.1 摄氏度。 28日，另一股非常深的低气压从布列塔尼向东北移动至比荷卢经济联盟，为英格兰南部、中部地区和东安格利亚部分地区带来大范围暴雨：圣赫利尔（泽西岛）降水最严重，降雨量为51毫米。英国大部分地区的月平均气温比 1971-2000 年的平均气温低 1.0-2.0 摄氏度，但接近甚至略高于英格兰南部和威尔士南部的平均气温。所有东部地区的降雨量远高于长期平均水平，肯特郡东部局部降雨量是正常降雨量的四倍多。西部地区相对干燥，苏格兰西部、坎布里亚郡和威尔士西部的一些地点的降雨量不到正常水平的50%。同样，东部地区也很沉闷……
This was the fourth most ‘easterly’February in 138 years of records, behind 1986, 1947 and 1895. After a changeable start the second week was broadly anticyclonic, but the second half of the month was exceptionally cyclonic, the barometer remaining continuously below 1000mbar over much of the UK from late on the 15th until late on the 28th. Nevertheless, it was a gale-free month with no reported gusts above 50kn. Atlantic disturbances crossed the country during the first six days, bringing frequent rain, and in northern districts some snow. It was cold at times in Scotland, and Dalwhinnie (Inverness-shire) recorded–10.1 C early on the 3rd, but southern districts were rather mild and on the 5th Kew Gardens (London) recorded 12.3 C. By contrast, at Lerwick (Shetland) snow lay 14–18cm deep from the 1st-4th.Between the 7th and 14th high pressure was slow-moving between Scotland and Iceland and a cold northeasterly airflow covered the country. Many districts had slight to moderate frost each night, and snow fell frequently in eastern and southern regions, though generally in small amounts: daytime highs were typically between 2 and 5 C so snow did not lie on the ground for long except in upland districts. However, it snowed heavily in east Kent and East Sussex on the 11th, with 25cm over the hills behind Folkestone. Western parts of the UK were largely dry and sunny during this week, and Weymouth (Dorset) reported 9.5 h on the 11th alone. A deepening depression moved slowly southeast then south from Iceland to Scotland between the 14th and 16th bringing more general outbreaks of rain and snow, and there were renewed accumulations of snow over high ground. This ushered in an extended cyclonic period which delivered very unsettled weather with some rain or snow falling on most days: notable rainfall totals included 31mm at Kew and Hampstead (both London) on the 15th and 16th. There were some heavy and disruptive falls of snow too, notably across many parts of Wales, the Midlands, East Anglia and the northern Home Counties on the 18th, 21st and 22nd, with snow depths of 10–15cm in the worst-hit areas. Over much of northern and western Britain, however, there was plentiful sunshine between the 17th and 23rd, but with severe night frosts. Dunstaffnage (Argyll) recorded 48h of sunshine during the six days ending on the 23rd, while overnight lows were widely between–10 and–18 C in the Scottish Highlands on the same dates, with–19.2 C at Braemar (Aberdeenshire) early on the 23rd the lowest. Prolonged heavy snow affected the Scottish Highlands between the 24th and 26th with 44cm measured at Aviemore (Inverness-shire) and an unconfirmed 80cm in Glencoe (Argyll). However, Scotland’s main population centres largely escaped, and Dyce (Aberdeenshire) recorded 58mm of rain in 48h. Southern districts became milder between the 24th and 27th with 12.1 C at Gravesend/Broadness on the 24th. A further very deep depression tracked northeastwards from Brittany to Benelux on the 28th bringing widespread heavy rain to southern England, parts of the Midlands and East Anglia: heaviest fall was 51mm at St Helier (Jersey). Mean monthly temperature was 1.0–2.0 degC below the 1971–2000 average over much of the UK, but close to or even fractionally above the average in southern England and south Wales. Rainfall was well above the long-term average in all eastern regions, and more than four times the normal amount fell locally in east Kent. Western regions were relatively dry with less than 50% of the normal rainfall at a few sites in western Scotland, Cumbria and west Wales. Similarly, eastern districts were dull …