HKSAR
Sand and dust associated with a sandstorm spread southeast from northern China in the past few days.The whole episode was captured by the true colour images from the Earth Observing Satellite. The satellite picture suggested that sand and dust were located over northern China on March 20 (Figure 1) and reached central and eastern China on March 21 (Figure 2). They spread to Taiwan and its adjacent waters today (March 22) (Figure 3).
Hong Kong is mainly affected by easterlies today.Due to suspended particulates, the visibility over Hong Kong was rather low and dropped to below 3000 m today.It is expected that winds over Hong Kong will turn to southeasterlies during the day tomorrow and will persist for a couple of days.The visibility will improve slightly in the next couple of days.
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