HOURLY READINGS


 

AT 4 P.M. AT THE HONG KONG OBSERVATORY THE AIR TEMPERATURE
WAS 26 DEGREES CELSIUS AND THE RELATIVE HUMIDITY 95 PER
CENT.
DURING THE PAST HOUR THE MEAN UV INDEX RECORDED AT KING'S
PARK WAS 0.3. THE INTENSITY OF UV RADIATION WAS LOW.

 

ACCORDING TO THE PRESENT FORECAST, SUPER TYPHOON RAGASA
WILL CONTINUE TO INTENSIFY IN THE NEXT COUPLE OF DAYS, MOVE
ACROSS THE VICINITY OF LUZON STRAIT AND ENTER THE NORTHERN
PART OF THE SOUTH CHINA SEA, EDGING CLOSER TO THE COAST OF
GUANGDONG. THE OBSERVATORY WILL ISSUE THE STANDBY SIGNAL,
NO. 1 AROUND NOON ON MONDAY. RAGASA HAS AN EXTENSIVE
CIRCULATION. ALTHOUGH LOCAL WEATHER WILL IMPROVE BRIEFLY
AND WILL BE VERY HOT ON MONDAY, THERE WILL BE SWELLS. THE
WEATHER WILL DETERIORATE RAPIDLY LATER ON TUESDAY. GALE TO
STORM FORCE WINDS WILL PREVAIL ON WEDNESDAY, AND WINDS MAY
REACH HURRICANE FORCE OFFSHORE AND ON HIGH GROUND. THE
WEATHER WILL BE ADVERSE WITH HEAVY SQUALLY SHOWERS AND
THUNDERSTORMS. SEAS WILL BE VERY HIGH WITH SWELLS. UNDER
THE INFLUENCE OF SIGNIFICANT STORM SURGE, THE SEA LEVEL
OVER COASTAL AREAS BY THEN MAY BE SIMILAR TO THAT OF HATO
IN 2017 AND MANGKHUT IN 2018. MEMBERS OF THE PUBLIC PLEASE
TAKE NOTE OF THE LATEST WEATHER INFORMATION FROM THE
OBSERVATORY AND BE WELL PREPARED FOR HIGH WINDS AND
FLOODING.

 

PLEASE BE REMINDED THAT:

 

THE AMBER RAINSTORM WARNING SIGNAL HAS BEEN ISSUED.
THE THUNDERSTORM WARNING HAS BEEN ISSUED. IT WILL REMAIN
EFFECTIVE UNTIL 5:30 P.M. TODAY. ISOLATED THUNDERSTORMS ARE
EXPECTED TO OCCUR OVER HONG KONG.

 

THE AIR TEMPERATURES AT OTHER PLACES WERE:

 

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

 

BETWEEN 2:45 AND 3:45 P.M., LIGHTNING WAS DETECTED WITHIN
LANTAU, NEW TERRITORIES WEST, HONG KONG AND KOWLOON. THE
RAINFALL RECORDED IN VARIOUS REGIONS WERE:

 

 
ISLANDS DISTRICT                 0 TO 48 MM;
KWAI TSING                       2 TO 16 MM;
SHA TIN                          0 TO 15 MM;
CENTRAL & WESTERN DISTRICT       4 TO 13 MM;
TAI PO                           0 TO 13 MM;
SOUTHERN DISTRICT                1 TO 12 MM;
WAN CHAI                         7 TO 11 MM;
WONG TAI SIN                     3 TO 11 MM;
EASTERN DISTRICT                 5 TO 10 MM;
KWUN TONG                        1 TO 10 MM;
TSUEN WAN                         2 TO 8 MM;
SHAM SHUI PO                      2 TO 7 MM;
SAI KUNG                          0 TO 6 MM;
TUEN MUN                          2 TO 6 MM;
YAU TSIM MONG                     2 TO 6 MM;
YUEN LONG                         0 TO 4 MM;
NORTH DISTRICT                    0 TO 3 MM;
KOWLOON CITY                      2 TO 3 MM.

DISPATCHED BY HONG KONG OBSERVATORY AT 16:33 HKT ON 21.09.2025