16
TUESDAY, MARCH 12, 1991
OVER THE NEXT THREE DAYS, THE TEMPERATURE
AS THE WEATHER TURNED BRIGHTER.
GRADUALLY
RECOVERED
HOWEVER, THE RELATIVE HUMIDITY CONTINUED TO FALL AS THE EFFECT OF THE DRY NORTHERLIES WAS FELT.
HILL FIRES WERE REPORTED THROUGHOUT THE TERRITORY UNDER THE EXTREMELY DRY CONDITIONS.
THE EASTERLIES FRESHENED ON THE EVENING OF FEBRUARY 24 AND LED TO CLOUDIER WEATHER FOR THE NEXT COUPLE OF DAYS.
AFTER SOME MORNING DRIZZLE ON FEBRUARY 27, CONDITIONS BECAME EVEN MOISTER AS A HUMID MARITIME AIRSTREAM MOVED IN.
MIST HOVERING OVER OFFSHORE AREAS THICKENED INTO FOG DURING THE NIGHT.
VISIBILITY INSIDE THE HARBOUR ALSO DETERIORATED THE NEXT MORNING. THE WEATHER STAYED GENERALLY CLOUDY AND MISTY THROUGHOUT THE DAY WITH PATCHES OF LIGHT RAIN AT TIMES.
THE WESTERN NORTH PACIFIC AND THE SOUTH CHINA SEA WERE DEVOID OF TROPICAL CYCLONES IN THE MONTH. ONE AIRCRAFT WAS DIVERTED DUR TO FOGGY WEATHER ON FEBRUARY 14. THE YELLOW FIRE DANGER WARNING WAS IN EFFECT ON FEBRUARY 2, 3, 10, 15 TO 17, 20, 21, 25 AND THE RRD DANGER WARNING WAS IN EFFECT ON FEBRUARY 21 TO 25.
WEATHER SYSTEM
SIGNALS HOISTED DURING THE MONTH WERE AS FOLLOWS:
SIGNAL
DATE & TIME
OF HOISTING
DATE & TIME OF LOWERING
FIRK
WINTER
STRONG
MONSOON
MONSOON
WINTER
STRONG
MONSOON
MONSOON
WINTER
STRONG
MONSOON
MONSOON
WINTER
MONSOON
STRONG MONSOON
FEBRUARY 12 10 AM
FEBRUARY 16 7.50 AM
FEBRUARY 17 11.30 PM
FEBRUARY 12 2.30 PM
FEBRUARY 17 7 AM
FEBRUARY 18 7.45 AM
FEBRUARY 25 4.30 AM
FEBRUARY 25 2.30 PM
THE MONTH'S FIGURES AND DEPARTURES FROM NORMAL WERE:
TOTAL BRIGHT SUNSHINE
MEAN DAILY GLOBAL
SOLAR RADIATION
TOTAL RAINFALL
116.4 HOURS; 18.7 HOURS ABOVE NORMAL
10.87 MJ/SQ. METRES; 0.18 MJ/SQ. METRE
ABOVE NORMAL
8.2 MM : 39.8 MM BELOW NORMAL
/MEAN AMOUNT
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