PRESS WEATHER NO. 151 - HOURLY READINGS
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HOURLY READINGS
DISPATCHED BY HONG KONG OBSERVATORY AT 12:17 HKT ON 18.07.2025
AT NOON AT THE HONG KONG OBSERVATORY THE AIR TEMPERATURE
WAS 26 DEGREES CELSIUS AND THE RELATIVE HUMIDITY 86 PER
CENT.
DURING THE PAST HOUR THE MEAN UV INDEX RECORDED AT KING'S
PARK WAS 1. 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.
PLEASE BE REMINDED THAT:
THE AMBER RAINSTORM WARNING SIGNAL HAS BEEN ISSUED.
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 25 DEGREES;
WONG CHUK HANG 27 DEGREES;
TA KWU LING 25 DEGREES;
LAU FAU SHAN 26 DEGREES;
TAI PO 25 DEGREES;
SHA TIN 25 DEGREES;
TUEN MUN 27 DEGREES;
TSEUNG KWAN O 29 DEGREES;
SAI KUNG 28 DEGREES;
CHEUNG CHAU 28 DEGREES;
CHEK LAP KOK 28 DEGREES;
TSING YI 25 DEGREES;
SHEK KONG 24 DEGREES;
TSUEN WAN HO KOON 25 DEGREES;
TSUEN WAN SHING MUN VALLEY 25 DEGREES;
HONG KONG PARK 25 DEGREES;
SHAU KEI WAN 27 DEGREES;
KOWLOON CITY 24 DEGREES;
HAPPY VALLEY 26 DEGREES;
WONG TAI SIN 26 DEGREES;
STANLEY 30 DEGREES;
KWUN TONG 26 DEGREES;
SHAM SHUI PO 24 DEGREES;
KAI TAK RUNWAY PARK 27 DEGREES;
YUEN LONG PARK 26 DEGREES;
TAI MEI TUK 26 DEGREES.
BETWEEN 10:45 AND 11:45 A.M., LIGHTNING WAS DETECTED OVER
ALL REGIONS. THE RAINFALL RECORDED IN VARIOUS REGIONS WERE:
TSUEN WAN 6 TO 63 MM;
KWAI TSING 29 TO 59 MM;
YUEN LONG 16 TO 54 MM;
SHAM SHUI PO 27 TO 47 MM;
NORTH DISTRICT 0 TO 44 MM;
TAI PO 0 TO 42 MM;
SHA TIN 2 TO 26 MM;
CENTRAL & WESTERN DISTRICT 4 TO 19 MM;
YAU TSIM MONG 7 TO 17 MM;
KOWLOON CITY 0 TO 17 MM;
TUEN MUN 2 TO 16 MM;
WAN CHAI 1 TO 9 MM;
EASTERN DISTRICT 0 TO 8 MM;
ISLANDS DISTRICT 0 TO 5 MM;
SAI KUNG 0 TO 3 MM;
SOUTHERN DISTRICT 0 TO 3 MM;
WONG TAI SIN 2 TO 3 MM;
KWUN TONG 0 TO 1 MM.
12.7 MILLIMETRES OF RAINFALL WERE RECORDED AT THE HONG KONG
OBSERVATORY BETWEEN MIDNIGHT LAST NIGHT AND MIDDAY TODAY.
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 12:17 HKT ON 18.07.2025
Ends/Friday, July 18, 2025
Issued at HKT 12:17
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