HOURLY READINGS


 

AT 7 A.M. AT THE HONG KONG OBSERVATORY THE AIR TEMPERATURE
WAS 27 DEGREES CELSIUS AND THE RELATIVE HUMIDITY 94 PER
CENT.

 

SPECIAL LANDSLIP ADVISORY: RAIN HAS BEEN PARTICULARLY HEAVY
IN NORTH NEW TERRITORIES; AND MAY CAUSE LANDSLIDES. PAY
SPECIAL ATTENTION TO LANDSLIDE RISK AND STAY AWAY FROM
SLOPES. IF LANDSLIDE OCCURS NEARBY, LEAVE IMMEDIATELY AND
CALL THE POLICE UNDER SAFE CONDITIONS.

 

PLEASE BE REMINDED THAT:

 

THE AMBER RAINSTORM WARNING SIGNAL HAS BEEN ISSUED.
THE THUNDERSTORM WARNING HAS BEEN ISSUED. IT WILL REMAIN
EFFECTIVE UNTIL 8:30 A.M. TODAY. A FEW SQUALLY
THUNDERSTORMS ARE EXPECTED TO OCCUR OVER HONG KONG.
THE SPECIAL ANNOUNCEMENT OF FLOODING IN NORTHERN NEW
TERRITORIES HAS BEEN ISSUED.

 

THE AIR TEMPERATURES AT OTHER PLACES WERE:

 

KING'S PARK                 27 DEGREES;
WONG CHUK HANG              27 DEGREES;
TA KWU LING                 25 DEGREES;
LAU FAU SHAN                25 DEGREES;
TAI PO                      25 DEGREES;
SHA TIN                     25 DEGREES;
TUEN MUN                    25 DEGREES;
TSEUNG KWAN O               26 DEGREES;
SAI KUNG                    25 DEGREES;
CHEUNG CHAU                 26 DEGREES;
CHEK LAP KOK                26 DEGREES;
TSING YI                    27 DEGREES;
SHEK KONG                   25 DEGREES;
TSUEN WAN HO KOON           25 DEGREES;
TSUEN WAN SHING MUN VALLEY  26 DEGREES;
HONG KONG PARK              26 DEGREES;
SHAU KEI WAN                27 DEGREES;
KOWLOON CITY                26 DEGREES;
HAPPY VALLEY                27 DEGREES;
WONG TAI SIN                26 DEGREES;
STANLEY                     27 DEGREES;
KWUN TONG                   26 DEGREES;
SHAM SHUI PO                26 DEGREES;
KAI TAK RUNWAY PARK         27 DEGREES;
YUEN LONG PARK              25 DEGREES;
TAI MEI TUK                 25 DEGREES.

 

BETWEEN 5:45 AND 6:45 A.M., LIGHTNING WAS DETECTED OVER ALL
REGIONS. THE RAINFALL RECORDED IN VARIOUS REGIONS WERE:

 

 
TSUEN WAN                       19 TO 47 MM;
TUEN MUN                         3 TO 37 MM;
YUEN LONG                        0 TO 37 MM;
ISLANDS DISTRICT                 0 TO 31 MM;
TAI PO                           0 TO 30 MM;
KWAI TSING                      13 TO 26 MM;
SHA TIN                          6 TO 16 MM;
SHAM SHUI PO                      6 TO 9 MM;
KOWLOON CITY                      0 TO 8 MM;
NORTH DISTRICT                    0 TO 7 MM;
WONG TAI SIN                      2 TO 6 MM;
SAI KUNG                          0 TO 5 MM;
YAU TSIM MONG                     1 TO 3 MM;
CENTRAL & WESTERN DISTRICT        0 TO 2 MM;
KWUN TONG                         0 TO 1 MM.

DISPATCHED BY HONG KONG OBSERVATORY AT 07:02 HKT ON 21.05.2026