In hong kong , the standby signal no . 1 was issued at 2 . 40 p . m . on 10 september , shortly after hagupit formed at about 460 km to the southeast . on 10 september , the weather was at first hazy with light to moderate northerly winds 在天气方面，本港于九月十日初时吹轻微至和缓北风及有烟霞，而黑格比的外围雨带则由下午开始为本港带来狂风骤雨及雷暴。
It is forecast that the fine and dry weather will persist tomorrow ( 20 october 2004 ) but the northerly winds will subside . with lighter winds , it will be hazy over parts of the territory with visibility ranging between 4 and 8 kilometres 预料明日( 2004年10月20日)持续天晴及乾燥，但北风会缓和，在风势较弱的情况下，部分地方会有烟霞，能见度在4至8公里之间。
Dornoch is considered by many as the finest northerly course in the world . perhaps , no other course offers as marvellous a feeling of getting away from it all or better provides natural seaside beauty , challenge , enjoyment and shot values 也许，没有任何一个场地可以象多诺赫一样，带给曾经来过这里的人们一种绝妙的感受展示给人们更为美丽的海岸更棒的挑战享受和击球的乐趣。
January and february are cloudier , with occasional cold fronts followed by dry northerly winds . temperatures can drop below 10 degrees celsius in urban areas but sub - zero temperatures and frost usually occur on high ground and in the new territories 一月和二月云量较多，但偶尔有冷锋过境，带来乾燥的北风，市区气温有时会降至摄氏10度以下。新界和高地的气温，有时更会降至摄氏零度以下，并有结霜现象。
However , in july 2002 , the subtropical ridge did not extend to southern china and the steering flow over the northwest pacific had a more northerly direction than usual . as a result , the tropical cyclones in the region were carried northwards and did not enter the south china sea ( 但今年同期副热带高压脊并没有西伸至华南，使西北太平洋上引导气流的方向比正常偏北，在该区的热带气旋因此偏向北移，而不向西进入南海（
As hong kong is to the southeast of the prd , air pollutants originating from the prd covering shenzhen ( including shekou ) are easily carried by a northerly or northwesterly wind to the territory . larger particles of smog and dust usually settle near the source of pollution , while the smaller respirable suspended particulates may be carried by the wind for a long distance 由于本港位于珠江三角洲的东南面，偏北或西北方向的风较易将珠江三角洲包括深圳蛇口一带的区域性空气污染物带进本港。黑烟粉尘中较大的粒子一般会在污染源头附近坠下；但较细小的可吸入的悬浮粒子，则可以随风被带到远处。
When a temperature inversion is formed in the pearl river delta ( prd ) region , or when a weak northerly or northwesterly wind prevails , ambient air pollutants ( including nox and voc ) in the region will be trapped easily in the lower atmosphere and cannot be dispersed effectively . the above factors , if coupled with strong sunlight , will favour the building up of ozone concentrations 当珠江三角洲区域一带出现逆温层现象，或者吹微弱北或西北风时，区域内空气中的污染物（包括氮氧化物及挥发性有机化合物）很容易会被困在大气的低层，不能有效消散；如再加上强烈的阳光，臭氧浓度便会增高。
