12
WEDNESDAY, FEBRUARY 12, 1992
VISIBILITY INSIDE THE HARBOUR WAS ALSO POOR ON JANUARY 25 AS A RESULT OF MIST AND HAZE.
FINE AND CLEAR WEATHER THEN PREVAILED FOR THE NEXT FIVE DAYS. WITH LONG HOURS OF SUNSHINE, TEMPERATURE CONTINUED TO RISE BEFORE REACHING THE MONTH'S HIGHEST FIGURE OF 23.1 DEGREES ON JANUARY 30.
MIST RE-APPEARED OFFSHORE THAT EVENING AND VISIBILITY DETERIORATED FURTHER THAT NIGHT
FOG PATCHES WERE REPORTED NEAR CHEUNG CHAU IN THE EARLY HOURS OF JANUARY 31. THE MIST AND FOG WERE SOON CLEARED AWAY AS DRY AIR ASSOCIATED WITH A NORTHERLY SURGE OF THE WINTER MONSOON ARRIVED LATER THAT MORNING, BRINGING ANOTHER DAY OF FINE WEATHER BUT LOWER
TEMPERATURES.
THERE WAS ONLY ONE TROPICAL
CYCLONE PACIFIC AND THE SOUTH CHINA SEA IN JANUARY.
MONTH.
OVER THE WESTERN NORTH
NO AIRCRAFT WAS DIVERTED DUE ΤΟ ADVERSE WEATHER DURING THE
THE YELLOW FIRE DANGER WARNING WAS IN EFFECT ON JANUARY 11, 18-23, 25-27, AND 31.
8-10,
THE RED FIRE DANGER WARNING WAS IN EFFECT ON JANUARY 13-18. THE GAS WATER HEATER ALERT WAS ISSUED ON JANUARY 20-22. A THUNDERSTORM WARNING WAS ISSUED ON JANUARY 5.
SIGNALS HOISTED DURING THE MONTH WERE AS FOLLOWS:
WEATHER SYSTEM
SIGNAL
DATE AND TIME OF HOISTING
+
12.
9 AND 13-18,
DATE AND TIME OF LOWERING
WINTER MONSOON STRONG MONSOON
JAN 4 1 PM
JAN 5 6 AM
WINTER MONSOON STRONG MONSOON
JAN 13 3.45 PM
JAN 15 4.45 AM
THE MONTH'S FIGURES AND DEPARTURES FROM NORMAL" WERE:
TOTAL BRIGHT SUNSHINE
MEAN DAILY GLOBAL
SOLAR RADIATION
TOTAL RAINFALL
MRAN AMOUNT OF CLOUD
MEAN RELATIVE HUMIDITY
197.1 HOURS; 44.7 HOURS ABOVE NORMAL
12.34 MJ/SQ.M.; 0.71 MJ/SQ.M.
ABOVE NORMAL
40 MM : 16.6 MM ABOVE NORMAL
43 % 15 % LESS THAN NORMAL
69 % 2 % LOWER THAN NORMAL
/MEAN DAILY
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