GEORGETOWN - An unexpectedly high volume of rainfall is said to be the cause behind water overflowing into several areas of the Penang International Airport on Sunday, said airport senior manager Mohd Ariff Jaafar.
He said 52.5mm of rainfall was recorded on that day, which was three times the normal volume.
The areas affected at the airport were the arrival hall and the apron area where the Firefly planes are normally stationed.
"The rainwater started overflowing after heavy rain between 7pm and 8pm.
"It was cleared within an hour," said Ariff, adding that the airport operations were unaffected.
"I was told by the state Meteorological Department that the usual rainfall volume is between 10mm and 15mm.
"The high amount of rainfall on Sunday was unprecedented.
"Even the villages situated around the airport, which have never experienced any flooding before, were flooded," he said yesterday.
Ariff reiterated that the airport's drainage system was working.