MONDAY, NOVEMBER 17, 1980
OCTOBER WEATHER WAS DRIER AND WARMER
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OCTOBER WAS DRIER AND WARMER THAN USUAL, ACCORDING TO THE MONTH'S WEATHER SUMMARY ISSUED BY THE ROYAL OBSERVATORY.
THE MEAN MINIMUM TEMPERATURE OF 23.7 DEGREES CELSIUS RANKED SIXTH AND THE ABSOLUTE MAXIMUM OF 32.7 DEGREES CELSIUS WAS THE SEVENTH HIGHEST ON RECORD FOR OCTOBER.
THE MONTH'S TOTAL RAINFALL OF 80.8 MM WAS 26.4 MM BELOW AVERAGE. THIS BROUGHT THE ACCUMULATED RAINFALL IN THE FIRST TEN MONTHS OF THE YEAR TO 1 681.7 MM, SOME 23 PER CENT BELOW NORMAL.
APART FROM A FEW MORNING SHOWERS ON OCTOBER 1 AND STRONG EASTERLY WINDS ON OCTOBER 4, THE PERIOD FROM SEPTEMBER 29 TO OCTOBER 17 WAS MARKED BY SUNNY AND WARM WEATHER EVERY DAY.
ON OCTOBER 13, WINDS TURNED NORTHERLY AND CONDITIONS BECAME HOT AND DRY, AND THE HIGHEST TEMPERATURE OF 32.7 DEGREES CELSIUS WAS RECORDED.
THERE WERE THUNDERSTORMS AND SHOWERS ON OCTOBER 18 AND 19 BUT THE WEATHER IMPROVED AND BECAME MAINLY FINE IN THE FOLLOWING THREE DAYS.
HOWEVER, A COLD FRONT CAUSED RAIN ALL DAY ON OCTOBER 23 FOLLOWED BY ISOLATED THUNDERSTORMS ON OCTOBER 24.
ON OCTOBER 25, STRONG NORTHERLY WINDS BROUGHT COOLER WEATHER AND THE MONTH'S MINIMUM TEMPERATURE OF 18.6 DEGREES CELSIUS WAS RECORDED ON OCTOBER 26.
SOME LIGHT RAIN FELL ON OCTOBER 27 WITH CLOUDY WEATHER THE FOLLOWING DAY, BUT IT BECAME FINE AND DRY AGAIN ON THE LAST THREE DAYS OF THE MONTH IN SPITE OF TROPICAL STORM CARY MOVING WESTWARDS ACROSS THE SOUTH CHINA SEA ON OCTOBER 30, THE STORM TURNED SOUTHWESTWARDS ON ENCOUNTERING WINTER MONSOON GALES.
DURING THE MONTH, FIVE TROPICAL CYCLONES DEVELOPED OVER THE WESTERN NORTH PACIFIC AND THE SOUTH CHINA SEA, BUT ONLY ONE CAUSED TROPICAL CYCLONE WARNING SIGNAL NO. 1 TO BE HOISTED LOCALLY, THE STRONG MONSOON SIGNAL WAS PUT UP TWICE, ON OCTOBER 4-5 AND OCTOBER 25-26.
NO AIRCRAFT WAS DIVERTED FROM HONG KONG DUE TO ADVERSE WEATHER. THUNDERSTORM WARNINGS WERE ISSUED ON THREE DAYS.
THE YELLOW FIRE DANGER WARNING WAS ISSUED ON SEVEN DAYS WHILE THE RED FIRE DANGER WARNING WAS EFFECTIVE ON FIVE DAYS.
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