SATURDAY, APRIL 13, 1991
15
MARCH WARMER AND MORE HUMID THAN NORMAL
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MARCH 1991 WAS WARMER AND MORE HUMID THAN NORMAL, ACCORDING THE MONTHLY WEATHER REPORT RELEASED BY THE ROYAL OBSERVATORY TODAY (SATURDAY).
THE MONTHLY MEAN DRW POINT OF 17.9 DEGREES, MONTHLY MBAN MINIMUM TEMPERATURE OF 18.6 DEGREES AND MONTHLY MEAN TEMPERATURE OF 20.3 DEGREES WERE RESPECTIVELY THE THIRD, FIFTH AND SIXTH HIGHEST EVER.
RAIN THAT FELL WAS MOSTLY ASSOCIATED
WITH LATE-SEASON SURGES
OF THE NORTHEAST MONSOON. THE FIRST MAJOR DOWNPOUR AND THUNDERSTORM OF THE YEAR OCCURRED ON MARCH 22. THE RAINFALL ON THAT DAY REPRESENTED A SUBSTANTIAL PORTION OF THE MONTHLY TOTAL OF 51.5 MILLIMETRES WHICH WAS 23 PER CENT BELOW THE MARCH NORMAL OF 66.9 MILLIMETRES.
THE TOTAL RAINFALL SINCE JANUARY 1 1991 AMOUNTED то 88.4 MILLIMETRES, 36 PER CENT BELOW THE NORMAL OF 138.3 MILLIMETRES FOR THE SAME PERIOD.
THE WEATHER ON MARCH 1 WAS MAINLY MISTY WITH SEA FOG OFFSHORE. THERE WAS ALSO MORNING AND EVENING DRIZZLE. THE EASTERLIES FRESHRNED THAT EVENING AND LED TO CLOUDY AND COOLER WEATHER OVER THE NEXT COUPLE OF DAYS.
RAIN, THOUGH LIGHT, WAS QUITE PERSISTENT ON MARCH 2 BUT BECAME LESS FREQUENT THE NEXT DAY.
ALTHOUGH THERE WERE MARCH 4, THE WEATHER TURNED MONSOON MODERATED.
STILL SOME PATCHES OF LIGHT RAIN ON BRIGHTER AND WARMER AS THE NORTHEAST
MIST AND
WITH A MOIST MARITIME AIRSTREAM BECOMING ESTABLISHED, FOG ENCROACHED UPON THE SOUTH CHINA COASTAL AREAS. VISIBILITY INSIDE THE HARBOUR DROPPED BELOW 1,000 METRES IN THE MORNINGS OF MARCH 6 AND 7.
TEMPERATURES, MEANWHILE, WERE ON THE RISE, PEAKING AT A MAXIMUM OF 27.7 DEGREES ON MARCH 9. THIS WAS THE HIGHEST OF THE MONTH AND ALSO SO FAR THIS YEAR.
THE ARRIVAL OF COOLER AIR EARLY ON MARCH 10 DAY WITH FRESH EASTERLY WINDS, BUT THE CLOUDS SOON DAY.
BROUGHT A CLOUDY CLEARED THE NEXT
THE WEATHER FROM MARCH 12 TO 19 WAS DOMINATED BY WEAK SURGES OF THE NORTHEAST MONSOON. THE WEATHER WAS A MIXTURE OF SUNSHINE, CLOUDS, AND LIGHT RAIN.
THE HIGHLIGHTS DURING THIS PERIOD WERE THE STRONG EASTERLIES ON MARCH 14 AND PERSISTENT LIGHT RAIN ON MARCH 18.
/AS THE