HOURLY READINGS


 

AT 9 A.M. AT THE HONG KONG OBSERVATORY THE AIR TEMPERATURE
WAS 16 DEGREES CELSIUS AND THE RELATIVE HUMIDITY 80 PER
CENT.
DURING THE PAST HOUR THE MEAN UV INDEX RECORDED AT KING'S
PARK WAS 0.2. THE INTENSITY OF UV RADIATION WAS LOW.

 

TROPICAL CYCLONE RAI HAS COME WITHIN 800 KILOMETRES OF HONG
KONG THIS MORNING (20 DECEMBER). ACCORDING TO THE PRESENT
FORECAST, RAI WILL EDGE CLOSE TO THE COASTAL AREAS OF
GUANGDONG, BUT WEAKEN GRADUALLY. LOCALLY, THERE WILL BE
STRONG WINDS OFFSHORE AND ON HIGH GROUND OCCASIONALLY. THE
OBSERVATORY WILL ISSUE THE TROPICAL CYCLONE WARNING SIGNAL
BEFORE NOON TODAY. RAIN BANDS ASSOCIATED WITH RAI ARE
EXPECTED TO BRING RAINY WEATHER TO THE NORTHERN PART OF THE
SOUTH CHINA SEA AND THE COAST OF GUANGDONG TODAY AND
TOMORROW. THE OBSERVATORY WILL CLOSELY MONITOR ITS
DEVELOPMENT. MEMBERS OF THE PUBLIC SHOULD TAKE NOTE OF
CHANGES IN WEATHER IN THE NEXT FEW DAYS.

THE AIR TEMPERATURES AT OTHER PLACES WERE:

 

KING'S PARK                 15 DEGREES;
WONG CHUK HANG              16 DEGREES;
TA KWU LING                 15 DEGREES;
LAU FAU SHAN                16 DEGREES;
TAI PO                      15 DEGREES;
SHA TIN                     15 DEGREES;
TUEN MUN                    17 DEGREES;
TSEUNG KWAN O               15 DEGREES;
SAI KUNG                    15 DEGREES;
CHEUNG CHAU                 16 DEGREES;
CHEK LAP KOK                17 DEGREES;
TSING YI                    16 DEGREES;
SHEK KONG                   16 DEGREES;
TSUEN WAN HO KOON           16 DEGREES;
TSUEN WAN SHING MUN VALLEY  16 DEGREES;
HONG KONG PARK              15 DEGREES;
SHAU KEI WAN                14 DEGREES;
KOWLOON CITY                15 DEGREES;
HAPPY VALLEY                15 DEGREES;
WONG TAI SIN                15 DEGREES;
STANLEY                     15 DEGREES;
KWUN TONG                   14 DEGREES;
SHAM SHUI PO                16 DEGREES;
KAI TAK RUNWAY PARK         15 DEGREES;
YUEN LONG PARK              16 DEGREES;
TAI MEI TUK                 15 DEGREES.

 

BETWEEN MIDNIGHT AND 9 A.M. THE MINIMUM TEMPERATURE WAS
15.7 DEGREES CELSIUS AT THE HONG KONG OBSERVATORY.

 

HERE IS THE INFORMATION ON TYPHOON RAI AT 8 A.M.:
LOCATION: 17.1 DEGREES NORTH, 110.7 DEGREES EAST.

DISPATCHED BY HONG KONG OBSERVATORY AT 09:02 HKT ON 20.12.2021