Upgrades in weather alerts and drainage system in the pipeline

The alert system for extreme weather is in line to be improved after the devastating flooding from last week's rainstorms, says Chief Executive John Lee Ka-chiu.

Lee said the observatory issued only a localized heavy rain advisory as downpours that fell on Monday morning on specific areas including Sai Kung, Tseung Kwan O and Kwun Tong did not meet the required levels for hoisting the black rainstorm warning.

Yet rain exceeding 100 millimeters in an hour was recorded in the areas, while the black rainstorm signal standard is 70 millimeters per hour.

Lee said rainfall predictions have scientific limitations, but authorities should still think of "other ways of helping people to get to know more information earlier and in greater detail."

He added: "This would include increasing the risk factor when we consider sending out alert signals. And when we give out information [we could] increase the content, the different combination of aspects, including ... not just the level of rainfall but maybe some stronger indication as to the direction where a rainstorm is heading.

"While there are limitations as a result of science I believe if we think more from the citizens' angle, where and what they want to [do in] making preparations ... We'll look at it seriously."

Extreme weather may strike more often due to climate change, Lee said.

He said the Drainage Services Department will step up patrols at rivers and watercourses and clear debris to minimize the chance of flooding.

Lee reminded people to be alert for predicted rains in the next few days and to stay away from slopes and not stand under trees.

"We don't, of course, anticipate that rainfall and thunderstorms will be of the same level as the ... rainstorms we have just experienced, but we shouldn't just ignore the risk."

Lee noted too that the Home Affairs Department set up 45 counters at its offices across the city yesterday and today to help people affected by typhoon Saola and the rainstorms to apply for financial help.

Farmers including fish farmers and fishermen can also apply for emergency funds from the Agriculture, Fisheries and Conservation Department until September 20.

Some people, including the elderly, visited the Fanling center yesterday to apply.

"My refrigerator was damaged by the flooding and I don't have money for a new one," said an elderly woman named Fong. "I only want a refrigerator and won't get greedy."

Another woman, Lam, said she lost much furniture and had to calculate the extent of her losses to apply for help.

"My home was seriously flooded because it is located in a low place," she said. "All the furniture and appliances were in waist-deep water and damaged."

wallis.wang@singtaonewscorp.com