Weather report

Well, that's the weekend over: 320 millimeters of continuous downpour from Saturday to 10pm on Sunday. Reports of 116 landslides --31 on Hong Kong island, 19 in Kowloon and 66 in New Territories. Major road closures on Lantau including both roads to Po Lin Monastery (寶蓮寺), which resulted in the place being briefly cut off from the rest of the world. Some might say this is a Good Thing. Perhaps it gave the commercially avaricious Buddhist monks at Po Lin (Precious Lotus) the opportunity to meditate.
On this, for instance: during the Monday to Friday work-week when we get warning of impending very heavy rains, typhoons and such like, there's a well-ordered, slow-but-sure shutdown of Hong Kong. Depending on the actual or predicted severity, schools close (if they had already opened), followed by work places and, finally, most forms of public transport. If it is a typhoon, people get paid their salary despite the fact they are not at work. A state of affairs just short of bliss. But if it happens at the weekend, outside regular work hours? No financial recompense and a weekend most probably stuck indoors. So why do such weather events and accompanying shutdowns seem to occur most often around the weekend? Why is that?
Monday? Back to work. Outside? Sunshine. Go figure.