SUNDAY, SEPTEMBER 20, 1992
DURING THE FIRST HALF OF THE PERIOD WHEN MARK DEVELOPED AND REMAINED OVER THE COASTAL WATERS OF EASTERN GUANGDONG, MODERATE NORTH TO NORTHWESTERLY WINDS BLEW OVER THE TERRITORY.
THE WEATHER WAS HOT AND MAINLY FINE. BUT AS MARK WEAKENED, ITS REMNANT DRIFTED WESTWARDS ALONG THE COASTAL WATERS OF GUANGDONG, SKIRTING JUST TO THE SOUTH OF HONG KONG.
THE WEATHER BECAME CLOUDY ON AUGUST 20. WINDS TURNED EASTERLY THAT EVENING AND FRESHENED ON AUGUST 21 WITH OCCASIONAL STRONG WINDS OFFSHORE AND PERIODS OF RAIN.
EVEN THOUGH WINDS SOON SUBSIDED THE FOLLOWING MORNING, CLOUDY AND SHOWERY CONDITIONS CONTINUED BEFORE FINE WEATHER RETURNED ON AUGUST 25.
AS TROPICAL DEPRESSION POLLY APPROACHED TAIWAN ON AUGUST 27, HONG KONG CAME UNDER THE INFLUENCE OF ITS EXTENSIVE CIRCULATION. ANOTHER SPELL OF NORTHWESTERLY WINDS SET IN AND PERSISTED TILL THE END OF THE MONTH.
ALTHOUGH THE WEATHER REMAINED GENERALLY FINE IN THE DAY DURING THE PERIOD, THERE WERE INTENSE HEAT THUNDERSTORMS ON THE EVENINGS BOTH AUGUST 27 AND 28.
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ON THE FORMER OCCASION, ACTIVE LIGHTNING AND THUNDER IN A HIGHLY CHARGED ATMOSPHERE CAUSED A DISRUPTION IN THE RAILWAY SERVICE IN THE EVENING RUSH HOURS.
KOWLOON-CANTON
BUT OVERALL, THE TWO THUNDERSTORM EPISODES PRODUCED NO MORE THAN 30 MILLIMETRES OF RAINFALL AT THE ROYAL OBSERVATORY,
MEANWHILE, HEAT CONTINUED TO BUILD UP, CULMINATING IN THE EXTREMELY HOT TEMPERATURE OF 35.0 DEGREES ON AUGUST 30.
EIGHT TROPICAL CYCLONES OCCURRED IN AUGUST OVER THE WESTERN NORTH PACIFIC AND THE SOUTH CHINA SEA. HOWEVER, ONLY MARK AFFECTED THE SOUTH CHINA SEA AND PROMPTED THE HOISTING OF TROPICAL CYCLONE STAND-BY SIGNAL NO. 1 ON AUGUST
16.
THERE WAS ONLY ONE AIRCRAFT DIVERSION OWING TO POOR WEATHER DURING THE MONTH.
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