There was a rare hailstorm in Hong Kong yesterday (16th). It was the third hailstorm in September after 1983 and 2002.
The former assistant director of the Observatory and the spokesperson of the Meteorological Society, Leung Wing-wu, stated on a radio program this morning (17th) that hail is a rare phenomenon in Hong Kong. With global climate change, the scientific community as a whole believes that the atmosphere will be unstable and favorable for updrafts. Although it may not be more hail, "there will be big grains once it falls."
He said that if you are outdoors when the hail falls, you should not go to the top of the tree for shelter, as there will be thunder and lightning at the same time, and you should try to go to indoor covered places.
+1
Liang Rongwu said on the Hong Kong and Taiwan TV program "Millenniums" this morning that he had only witnessed two hailstones in Hong Kong in his life, one of which was near noon and the other at dusk. It is difficult to tell which period of time the hailstone is more likely to fall.
He said that the thunderstorm cloud itself has ice particles, which are generally small in size. If the updraft is weak, the thin ice will fall down quickly and dissipate before the ground.
Liang Rongwu believes that the main cause of hail at sunset yesterday was triggered by high temperature and strong updrafts appeared. The ice particles in the cloud "up and fall", and at the same time, they absorb surrounding water and increase in volume.
He also believed that the hailfall was related to the tropical cyclone "Santo", which was once a super typhoon.
He explained that there will be northerly winds in East China and South China, and then they will encounter southerly winds and an updraft will appear.
Liang Rongwu, former assistant director of the observatory.
(Profile picture)
Liang Rongwu said that hail usually only lasts for a short period of time. The past two experiences are only a few minutes. It is very random and cannot be observed through equipment. It has to be reported by the public. Therefore, it may sometimes appear, but no one has seen it, and has no direction. Observatory report.
He also said that if you are outdoors when the hail falls, you should not go under the trees to avoid it because the hail usually involves thunder and lightning.
With global warming and climate change in recent years, Liang Rongwu said that there is no consensus on whether hail will become more common in some places, but it may decrease in some places.
However, he also said that the overall view is that the atmosphere is unstable and the updraft is favorable. Although it does not necessarily increase the hail falling, "it will cause big grains once it falls."
Hail is a bad omen?
Mai Lingling and Qixianyu reminded that the stock market history card time can resolve the hail falling in September | Meteorological expert Liang Rongwu describes the rare dismantling or double typhoon related to tropical cyclone Chandu | It’s so hot that it’s Mid-Autumn Festival | The Observatory announces the time for viewing the moon at 6:47 pm and the next morning at 0:54 in the morning. The weather is hot and the water is over 35 degrees.
01News