HOURLY READINGS


 

AT 1 P.M. AT THE HONG KONG OBSERVATORY THE AIR TEMPERATURE
WAS 27 DEGREES CELSIUS AND THE RELATIVE HUMIDITY 89 PER
CENT.
DURING THE PAST HOUR THE MEAN UV INDEX RECORDED AT KING'S
PARK WAS 0.5. THE INTENSITY OF UV RADIATION WAS LOW.

 

LOCALISED HEAVY RAIN ADVISORY: RAIN IS PARTICULARLY HEAVY
IN YUEN LONG DISTRICT AND TSUEN WAN DISTRICT WHICH MAY
CAUSE SERIOUS FLOODING. IN PARTICULAR, SEVERE RAINSTORM IS
AFFECTING YUEN LONG DISTRICT WITH MORE THAN 100 MILLIMETRES
OF HOURLY RAINFALL FALLEN OR EXPECTED TO FALL; HEAVY RAIN
IS AFFECTING TSUEN WAN DISTRICT WITH MORE THAN 70
MILLIMETRES OF HOURLY RAINFALL FALLEN OR EXPECTED TO FALL.

ACCORDING TO THE PRESENT FORECAST, WIPHA WILL ENTER WITHIN
800 KILOMETRES OF HONG KONG TONIGHT TO EARLY TOMORROW (19
JULY). THE OBSERVATORY WILL ISSUE THE STANDBY SIGNAL, NO. 1
BY THEN. WIPHA IS EXPECTED TO INTENSIFY PROGRESSIVELY AND
EDGE CLOSER TO THE VICINITY OF THE PEARL RIVER ESTUARY AND
THE COAST OF WESTERN GUANGDONG AFTERWARDS. UNDER THE
INFLUENCE OF ITS OUTER SUBSIDING AIR, THE WEATHER WILL
STILL BE VERY HOT IN HONG KONG AT FIRST TOMORROW. WINDS
WILL STRENGTHEN GRADUALLY LATER TOMORROW. THE WEATHER WILL
WORSEN WITH HEAVY SQUALLY SHOWERS AND THUNDERSTORMS ON
SUNDAY. SEAS WILL BE VERY ROUGH WITH SWELLS. MEMBERS OF THE
PUBLIC ARE ADVISED TO STAY AWAY FROM THE SHORELINE AND NOT
TO ENGAGE IN WATER SPORTS. THE OBSERVATORY WILL CONSIDER
ISSUING THE STRONG WIND SIGNAL, NO. 3 DURING THE DAY
TOMORROW.
 
WIPHA WILL BE CLOSEST TO THE VICINITY OF THE PEARL RIVER
ESTUARY ON SUNDAY. THE OBSERVATORY WILL ASSESS THE NEED OF
ISSUING HIGHER TROPICAL CYCLONE WARNING SIGNALS AT THAT
TIME DEPENDING ON WIPHA’S DISTANCE TO THE PEARL RIVER
ESTUARY, ITS INTENSITY AND THE CHANGE IN LOCAL WINDS.
MEMBERS OF THE PUBLIC SHOULD PAY CLOSE ATTENTION TO THE
LATEST WEATHER INFORMATION FROM THE OBSERVATORY.

THOUGH RAINSTORM WARNING HAS BEEN CANCELLED, PEOPLE SHOULD
STAY ALERT TO THE DANGER THAT MAY BE BROUGHT ABOUT BY RIVER
FLOODING.

 

PLEASE BE REMINDED THAT:

 

THE THUNDERSTORM WARNING HAS BEEN ISSUED. IT WILL REMAIN
EFFECTIVE UNTIL 1:30 P.M. TODAY. A FEW 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                 26 DEGREES;
WONG CHUK HANG              27 DEGREES;
TA KWU LING                 25 DEGREES;
LAU FAU SHAN                25 DEGREES;
TAI PO                      25 DEGREES;
SHA TIN                     26 DEGREES;
TUEN MUN                    26 DEGREES;
TSEUNG KWAN O               25 DEGREES;
SAI KUNG                    26 DEGREES;
CHEUNG CHAU                 26 DEGREES;
CHEK LAP KOK                27 DEGREES;
TSING YI                    26 DEGREES;
SHEK KONG                   25 DEGREES;
TSUEN WAN HO KOON           24 DEGREES;
TSUEN WAN SHING MUN VALLEY  25 DEGREES;
HONG KONG PARK              25 DEGREES;
SHAU KEI WAN                26 DEGREES;
KOWLOON CITY                26 DEGREES;
HAPPY VALLEY                26 DEGREES;
WONG TAI SIN                26 DEGREES;
STANLEY                     28 DEGREES;
KWUN TONG                   26 DEGREES;
SHAM SHUI PO                25 DEGREES;
KAI TAK RUNWAY PARK         27 DEGREES;
YUEN LONG PARK              26 DEGREES;
TAI MEI TUK                 25 DEGREES.

 

BETWEEN 11:45 A.M. AND 12:45 P.M., LIGHTNING WAS DETECTED
OVER ALL REGIONS. THE RAINFALL RECORDED IN VARIOUS REGIONS
WERE:

 

 
NORTH DISTRICT                   6 TO 43 MM;
SAI KUNG                         0 TO 28 MM;
SHA TIN                          5 TO 26 MM;
WAN CHAI                         6 TO 24 MM;
TAI PO                           4 TO 23 MM;
CENTRAL & WESTERN DISTRICT       4 TO 19 MM;
KOWLOON CITY                     4 TO 17 MM;
WONG TAI SIN                    13 TO 17 MM;
TUEN MUN                         2 TO 13 MM;
YAU TSIM MONG                    3 TO 13 MM;
SHAM SHUI PO                     5 TO 13 MM;
YUEN LONG                         1 TO 8 MM;
KWUN TONG                         5 TO 8 MM;
KWAI TSING                        2 TO 7 MM;
ISLANDS DISTRICT                  0 TO 6 MM;
SOUTHERN DISTRICT                 0 TO 6 MM;
TSUEN WAN                         1 TO 6 MM;
EASTERN DISTRICT                  0 TO 2 MM.

 

HERE IS THE INFORMATION ON TROPICAL STORM WIPHA AT NOON:
LOCATION: 18.0 DEGREES NORTH, 123.3 DEGREES EAST.

DISPATCHED BY HONG KONG OBSERVATORY AT 13:03 HKT ON 18.07.2025