SUNDAY, FEBRUARY 11, 1990
THE NORTHERLIES WERE REPLACED BY FRESH
EASTERLIES ON JANUARY 24. ON THE FOLLOWING DAY, THERE WERE PERIODS OF SUNSHINE IN THE AFTERNOON AFTER SOME RAIN IN THE MORNING.
TEMPERATURES ROSE GRADUALLY OVER ABSENCE OF FURTHER COLD SURGES FROM THE
THE NEXT FEW DAYS IN THE NORTH.
ON JANUARY 27, LUNAR NEW YEAR'S DAY, A BRIEF LULL IN THE EASTERLIES RESULTED IN BRILLIANTLY FINE WEATHER AND THIS TURNED OUT TO BE THE ONLY RAIN-FREE DAY IN A LONG SPELL OF DULL AND DREARY WEATHER.
CLOUDS RETURNED EARLY ON JANUARY 28 AND RAIN FROM THE OFFSHORE WATERS DRIFTED IN TO AFFECT THE COASTAL AREAS AT NIGHT. THE RAIN GOT HEAVIER ON JANUARY 30 AFTER THE WINDS FRESHENED FROM THE EAST PREVIOUS EVENING.
THE
MEANWHILE, AN INTENSE SURGE OF THE WINTER MONSOON WAS ADVANCING SOUTHWARDS OVER GUANGDONG. THE ASSOCIATED COLD FRONT CROSSED THE COAST ON THE NIGHT OF JANUARY 30.
BESIDES SOME LIGHT RAIN, IT BROUGHT EVEN COLDER WEATHER TO THE COASTAL AREAS. TEMPERATURES AT THE ROYAL OBSERVATORY DROPPED BY MORE THAN EIGHT DEGREES WITHIN 24 HOURS.
BY THE EVENING OF JANUARY 31, THE TEMPERATURE FELL ΤΟ EIGHT DEGREES, THE LOWEST FOR THE MONTH AND THE COLDEST SO FAR THIS WINTER.
OVER THE WESTERN NORTH PACIFIC AND THE SOUTH CHINA SEA, THERE WAS ONLY ONE TROPICAL CYCLONE, KORYN.
DURING THE MONTH OF JANUARY, NO AIRCRAFT WAS DIVERTED DUE TO ADVERSE WEATHER. THE ONLY FIRE DANGER WARNING ISSUED WAS A YELLOW WARNING ON JANUARY 16. SIGNALS HOISTED DURING THE MONTH WERE AS FOLLOWS:
WEATHER
SYSTEM
SIGNAL
DATE AND TIME OF HOISTING
DATE AND TIME OF LOWERING
WINTER
MONSOON
STRONG
MONSOON
JANUARY 15 5.30 PM
JANUARY 16
7.15 AM
WINTER
STRONG
JANUARY 22
11 PM
JANUARY 23
10 AM
MONSOON
MONSOON
WINTER
STRONG
JANUARY 31 6.20 PM
FEBRUARY 1 8.45 AM
MONSOON
MONSOON
/THE MONTH'S
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