HOURLY READINGS


 

AT 10 P.M. AT THE HONG KONG OBSERVATORY THE AIR TEMPERATURE
WAS 29 DEGREES CELSIUS AND THE RELATIVE HUMIDITY 86 PER
CENT.

 

LOCALISED HEAVY RAIN ADVISORY: RAIN IS PARTICULARLY HEAVY
IN NORTH DISTRICT OF THE NEW TERRITORIES. IT MAY CAUSE
SERIOUS FLOODING. RESIDENTS WHO ARE LIKELY TO BE AFFECTED
ARE ADVISED TO TAKE NECESSARY PRECAUTIONS TO AVOID POSSIBLE
FLOOD DAMAGE. HEAVY RAIN OF MORE THAN 70 MILLIMETRES OF
HOURLY RAINFALL HAS FALLEN OR IS EXPECTED TO FALL IN THE
ABOVE REGIONS.

 

PLEASE BE REMINDED THAT:

 

THE AMBER RAINSTORM WARNING SIGNAL HAS BEEN ISSUED.
THE THUNDERSTORM WARNING HAS BEEN ISSUED. IT WILL REMAIN
EFFECTIVE UNTIL 1:00 A.M. TOMORROW. 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                 28 DEGREES;
WONG CHUK HANG              28 DEGREES;
TA KWU LING                 25 DEGREES;
LAU FAU SHAN                25 DEGREES;
TAI PO                      27 DEGREES;
SHA TIN                     27 DEGREES;
TUEN MUN                    27 DEGREES;
TSEUNG KWAN O               27 DEGREES;
SAI KUNG                    28 DEGREES;
CHEUNG CHAU                 27 DEGREES;
CHEK LAP KOK                30 DEGREES;
TSING YI                    28 DEGREES;
SHEK KONG                   25 DEGREES;
TSUEN WAN HO KOON           27 DEGREES;
TSUEN WAN SHING MUN VALLEY  29 DEGREES;
HONG KONG PARK              28 DEGREES;
SHAU KEI WAN                27 DEGREES;
KOWLOON CITY                28 DEGREES;
HAPPY VALLEY                28 DEGREES;
WONG TAI SIN                29 DEGREES;
STANLEY                     27 DEGREES;
KWUN TONG                   28 DEGREES;
SHAM SHUI PO                29 DEGREES;
KAI TAK RUNWAY PARK         29 DEGREES;
YUEN LONG PARK              26 DEGREES;
TAI MEI TUK                 26 DEGREES.

 

BETWEEN 8:45 AND 9:45 P.M., LIGHTNING WAS DETECTED WITHIN 
NEW TERRITORIES WEST AND NEW TERRITORIES EAST. THE RAINFALL
RECORDED IN VARIOUS REGIONS WERE:

 

 
NORTH DISTRICT                   0 TO 74 MM;
YUEN LONG                        0 TO 48 MM;
TUEN MUN                         0 TO 17 MM;
TAI PO                            0 TO 3 MM.

DISPATCHED BY HONG KONG OBSERVATORY AT 22:02 HKT ON 20.05.2026