XN000022-1981-10-12 — Page 8

MONDAY, OCTOBER 12, 1981

THERE WERE STRONG NORTHWESTERLY WINDS AND HEAVY SHOWERS DURING THE NIGHT BUT WINDS MODERATED RAPIDLY ON SEPTEMBER 22 AFTER CLARA MOVED INLAND NEAR SHANWEI,

THERE WERE SOME SHOWERS OVERNIGHT ON SEPTEMBER 23 AND THE WEATHER BECAME MAINLY FINE UNTIL SEPTEMBER 27.

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FOLLOWING SOME ISOLATED THUNDERSTORMS ON SEPTEMBER 28, MORE WIDESPREAD THUNDERSTORMS AND VIOLENT SHOWERS OCCURRED EARLY ON SEPTEMBER 29, MAKING IT THE WETTEST DAY OF THE YEAR. THE RAINFALL RECORDED ON THAT DAY WAS 128.5 MM, AND THE HEAVIEST DOWNPOUR OCCURRED BETWEEN 2 AND 4 AM, THERE WERE MANY REPORTS OF FLOODING, LANDSLIPS AND ROAD SUBSIDENCES.

A STRONG MONSOON SIGNAL WAS HOISTED ON SEPTEMBER 30. EAST- SOUTHEASTERLY WINDS WERE STRONG OFFSHORE AND THERE WERE A FEW SHOWERS.

DURING THE MONTH, TWO AIRCRAFT WERE DIVERTED FROM HONG KONG DUE TO ADVERSE WEATHER.

THUNDERSTORM WARNINGS WERE ISSUED FROM SEPTEMBER 1 TO 6, AND ALSO ON SEPTEMBER 14 AND 29.

THE MONTH'S FIGURES AND DEPARTURES FROM NORMAL WERE :

SUNSHINE

RAINFALL

CLOUD INESS

132.3 HOURS- 56.2 HOURS BELOW NORMAL

381.9 MM - 61.5 MM ABOVE NORMAL

- 1.2 DEGREE C BELOW NORMAL

- 0.3 DEGREE C BELOW NORMAL

72 %

RELATIVE HUMIDITY

81 %

- 10 % ABOVE NORMAL

- 2 % ABOVE NORMAL

MEAN MAXIMUM

TEMPERATURE

MEAN TEMPERATURE

29.3 DEGREE C

27.2 DEGREE C

MEAN MINIMUM TEMPERATURE

MEAN DEW POINT

TOTAL EVAPORATION

25.4 DEGREE C

23.6 DEGREE C

118.5 MM

= 0.2 DEGREE C ABOVE NORMAL

- 0.4 DEGREE C ABOVE NORMAL

44.7 MM BELOW NORMAL

MAXIMUM TEMPERATURE OF 32.1 DEGREE C WAS RECORDED ON SEPTEMBER 20.

MINIMUM TEMPERATURE OF 23.8 DEGREE C WAS RECORDED ON SEPTEMBER 16.

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