10
MONDAY, AUGUST 16, 1993
AS LEWIS LANDED AND DISSIPATED OVER NORTHERN VIETNAM, WEATHER IN HONG KONG IMPROVED RAPIDLY DURING THE DAY ON JULY 14.
EASTERLY WINDS SUBSIDED AND WERE GRADUALLY AIRSTREAM. A FINE SPELL THEN
MODERATE SOUTHWESTERLY
JULY 15 TO 19.
THE
REPLACED BY A PREVAILED FROM
WINDS TURNED SOUTHERLY ON THE NEXT TWO DAYS AND THE WEATHER WAS FINE AND HOT APART FROM MORNING SHOWERS.
IN THE MORNING ON JULY 22, A BAND OF ACTIVE THUNDERSTORMS DEVELOPED OVER THE WATERS TO THE EAST OF HONG KONG. IT MOVED STEADILY IN TO AFFECT THE TERRITORY.
ABOUT 60 MILLIMETRES
OF RAIN WAS RECORDED AT THE ROYAL OBSERVATORY WITHIN AN HOUR, NECESSITATING THE ISSUANCE OF FLOOD WARNING OF THE MONTH.
THE ONLY
THE HEAVY SHOWERS DID NOT LAST LONG AND THE WEATHER IMPROVED RAPIDLY BEFORE NOON.
THE WEATHER FOR THE NEXT EIGHT DAYS REMAINED MAINLY FINE APART FROM BRIEF SHOWERS AND ISOLATED THUNDERSTORMS.
AFTERNOON MAXIMUM TEMPERATURES CLIMBED STEADILY DURING THE PERIOD AND REACHED THE MONTH'S MAXIMUM OF 33.5 DEGREES FOR A SECOND TIME ON JULY 29.
AN
AREA OF UNSETTLED WEATHER DEVELOPED OVER THE NORTHERN PART OF THE SOUTH CHINA SEA TOWARDS THE END OF THE MONTH.
ISOLATED THUNDERY SHOWERS BEGAN TO AFFECT THE TERRITORY ON JULY 30,
WITH MORE FREQUENT HEAVY SHOWERS OCCURRING THE NEXT DAY WHEN AN EASTERLY AIRSTREAM REACHED THE SOUTH CHINA COASTAL AREAS.
FIVE TROPICAL CYCLONES DEVELOPED OVER THE WESTERN NORTH PACIFIC AND THE SOUTH CHINA SEA IN JULY. SEVERE TROPICAL STORM LEWIS WAS THE ONLY ONE THAT MOVED INTO THE SOUTH CHINA SEA.
DURING THE MONTH, TWO AIRCRAFT WERE DIVERTED FROM HONG KONG BECAUSE OF INCLEMENT WEATHER. DETAILS OF THE ISSUANCE/HOISTING AND CANCELLATION/LOWERING OF VARIOUS WARNINGS/SIGNALS IN THE MONTH ARE SUMMARISED IN TABLE 1.1.
MONTHLY METEOROLOGICAL FIGURES AND DEPARTURES FROM NORMAL JULY ARE TABULATED IN TABLE 1.2.
FOR
/TABLE 1.1