SATURDAY, MAY 17, 1986
IT REMAINED CLOUDY WITH SOME RAIN ON APRIL 23 AND 24, BUT BECAME MAINLY FINE THE NEXT DAY APART FROM SOME MIST AND COASTAL FOG IN THE MORNING.
FINE AND SUNNY WEATHER PREVAILED FROM APRIL 26 TO 28. TEMPERATURES ROSE TO A MAXIMUM OF 30.5 DEGREES CELSIUS ON THE AFTERNOON OF APRIL 28, THE HIGHEST OF THE MONTH.
IT TURNED CLOUDY THE NEXT DAY AND THERE WERE TRACES OF RAIN ON APRIL 30.
ONLY ONE TROPICAL CYCLONE OCCURRED OVER THE WESTERN NORTH PACIFIC AND THE SOUTH CHINA SEA DURING THE MONTH, KEN FORMED AS A TROPICAL DEPRESSION ABOUT 240 KILOMETRES SOUTHEAST OF YAP EARLY ON APRIL 26 AND DRIFTED NORTH-NORTHWESTWARDS SLOWLY. IT INTENSIFIED INTO A TYPHOON ON THE AFTERNOON OF APRIL 28 ABOUT 90 KILOMETRES EAST-SOUTHEAST OF YAP.
KEN TURNED WESTWARDS GRADUALLY OVERNIGHT AND BEGAN TO WEAKEN ON APRIL 29. LATE ON APRIL 30, KEN BECAME A TROPICAL DEPRESSION ABOUT 170 KILOMETRES NORTHWEST OF YAP AND MOVED AT ABOUT 19 KILOMETRES PER HOUR TOWARDS THE WEST-SOUTHWEST.
DURING THE MONTH NO AIRCRAFT WERE DIVERTED FROM HONG KONG DUE TO ADVERSE WEATHER.
THUNDERSTORM WARNINGS WERE ISSUED ON APRIL 20 TO 22.
A FLOOD WARNING WAS ISSUED ON APRIL 21.
THE RED FIRE DANGER WARNING WAS IN EFFECT ON APRIL 5 AND 6 WHILE THE YELLOW FIRE DANGER WARNING WAS IN EFFECT ON APRIL 6 AND 12.
SIGNALS HOISTED DURING THE MONTH WERE AS FOLLOWS:
WEATHER
SIGNAL
SYSTEM
DATE AND TIME OF HOISTING
DATE AND TIME OF LOWERING
WINTER
STRONG
MARCH 31
11.30 PM
APRIL 1
8.40 AM
MONSOON
MONSOON
WINTER
STRONG
APRIL 11
7.55 PM
APRIL 12
3.00 PM
MONSOON
MONSOON
THE MONTH'S FIGURES AND DEPARTURES FROM NORMAL WERE:
SUNSHINE
104.9 HOURS
RAINFALL
115.7 MM
CLOUD INESS
79 PER CENT
RELATIVE HUMIDITY
84 PER CENT
-15.3 HOURS BELOW NORMAL
=23.7 MM BELOW NORMAL
=3 PER CENT MORE THAN NORMAL
-1 PER CENT HIGHER THAN NORMAL
'MEAN MAXIMUM
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