HOURLY READINGS


 

AT 5 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 0.1. 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                 26 DEGREES;
WONG CHUK HANG              26 DEGREES;
TA KWU LING                 26 DEGREES;
LAU FAU SHAN                25 DEGREES;
TAI PO                      26 DEGREES;
SHA TIN                     26 DEGREES;
TUEN MUN                    25 DEGREES;
TSEUNG KWAN O               26 DEGREES;
SAI KUNG                    27 DEGREES;
CHEUNG CHAU                 24 DEGREES;
CHEK LAP KOK                26 DEGREES;
TSING YI                    25 DEGREES;
SHEK KONG                   // DEGREES;
TSUEN WAN HO KOON           25 DEGREES;
TSUEN WAN SHING MUN VALLEY  26 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                   27 DEGREES;
SHAM SHUI PO                25 DEGREES;
KAI TAK RUNWAY PARK         27 DEGREES;
YUEN LONG PARK              25 DEGREES;
TAI MEI TUK                 25 DEGREES.

 

BETWEEN 3:45 AND 4:45 P.M., LIGHTNING WAS DETECTED OVER ALL
REGIONS. THE RAINFALL RECORDED IN VARIOUS REGIONS WERE:

 

 
ISLANDS DISTRICT                 0 TO 37 MM;
KWAI TSING                      10 TO 25 MM;
TSUEN WAN                        8 TO 24 MM;
SHAM SHUI PO                    18 TO 24 MM;
YUEN LONG                        2 TO 18 MM;
YAU TSIM MONG                    7 TO 18 MM;
TUEN MUN                         2 TO 14 MM;
SHA TIN                          0 TO 13 MM;
KOWLOON CITY                     8 TO 13 MM;
TAI PO                           0 TO 12 MM;
CENTRAL & WESTERN DISTRICT       4 TO 11 MM;
WONG TAI SIN                      3 TO 9 MM;
SOUTHERN DISTRICT                 0 TO 7 MM;
KWUN TONG                         3 TO 7 MM;
NORTH DISTRICT                    0 TO 6 MM;
WAN CHAI                          0 TO 6 MM;
EASTERN DISTRICT                  0 TO 2 MM;
SAI KUNG                          0 TO 1 MM.

DISPATCHED BY HONG KONG OBSERVATORY AT 17:02 HKT ON 21.09.2025