PRESS WEATHER NO. 008 - HKO READINGS & RADIATION LEVEL
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HKO READINGS & RADIATION LEVEL
DISPATCHED BY HONG KONG OBSERVATORY AT 00:17 HKT ON 19.12.2023
YESTERDAY'S WEATHER AND RADIATION LEVEL:
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HONG KONG OBSERVATORY
MAXIMUM AIR TEMPERATURE 19.0 C
MINIMUM AIR TEMPERATURE 14.8 C
GRASS MINIMUM TEMPERATURE 14.2 C
RELATIVE HUMIDITY 71 - 88 PERCENT
RAINFALL TRACE
TOTAL RAINFALL SINCE 1ST JANUARY 2774.3 MM
AGAINST AN AVERAGE OF 2420.4 MM
OTHER STATIONS MIN MAX
KING'S PARK 14.1 C 18.4 C
WONG CHUK HANG 14.9 C 19.4 C
TA KWU LING 10.5 C 16.4 C
LAU FAU SHAN 11.0 C 16.9 C
TAI PO 11.7 C 18.3 C
SHA TIN 14.0 C 18.4 C
TUEN MUN 12.3 C 16.6 C
TSEUNG KWAN O 14.1 C 18.4 C
SAI KUNG 13.9 C 18.3 C
CHEUNG CHAU 14.6 C 17.9 C
CHEK LAP KOK 13.2 C 19.0 C
TSING YI 14.5 C 18.7 C
SHEK KONG 11.6 C 16.7 C
TSUEN WAN HO KOON 13.5 C 17.2 C
TSUEN WAN SHING MUN VALLEY 14.1 C 18.0 C
HONG KONG PARK 14.7 C 18.6 C
SHAU KEI WAN 13.9 C 18.0 C
KOWLOON CITY 13.6 C 18.0 C
HAPPY VALLEY 15.0 C 19.1 C
WONG TAI SIN 14.5 C 19.3 C
STANLEY 14.8 C 18.5 C
KWUN TONG 13.2 C 17.8 C
SHAM SHUI PO 14.1 C 18.9 C
KAI TAK RUNWAY PARK 14.9 C 19.1 C
YUEN LONG PARK 10.8 C 16.7 C
TAI MEI TUK 13.9 C 18.2 C
DURATION OF SUNSHINE (KING'S PARK): 0 H
THE MEAN UV INDEX RECORDED AT KING'S PARK YESTERDAY WAS
0.8, THE UV INTENSITY WAS LOW.
THE MAXIMUM UV INDEX FOR YESTERDAY WAS 2.
SEA SURFACE TEMPERATURE (WAGLAN ISLAND): 22.2 C
YESTERDAY'S (18 DEC 2023) AVERAGE AMBIENT GAMMA RADIATION
DOSE RATE TAKEN OUTDOORS IN HONG KONG RANGED FROM 0.09 TO
0.15 MICROSIEVERT PER HOUR. THESE ARE WITHIN THE NORMAL
RANGE OF FLUCTUATION OF THE BACKGROUND RADIATION LEVEL IN
HONG KONG (SEE NOTE). THE AVERAGE DOSE RATES MEASURED AT
THE RADIATION MONITORING STATIONS OVER VARIOUS PARTS OF THE
TERRITORY WERE AS FOLLOWS :
STATION YESTERDAY'S AVERAGE
(MICROSIEVERT/HOUR)
PING CHAU 0.10
TAP MUN 0.09
KAT O 0.10
YUEN NG FAN 0.12
TAI MEI TUK 0.12
SHA TAU KOK 0.10
KWUN TONG 0.13
SAI WAN HO 0.09
KING'S PARK 0.15
TSIM BEI TSUI 0.14
CAPE D'AGUILAR 0.13
CHEK LAP KOK 0.15
NOTE
1. FROM READINGS TAKEN AT VARIOUS LOCATIONS IN HONG KONG IN THE
PAST, THE HOURLY MEAN AMBIENT GAMMA RADIATION DOSE RATE MAY
VARY BETWEEN 0.06 AND 0.3 MICROSIEVERT PER HOUR.
(1 MICROSIEVERT = 0.000001 SIEVERT = 0.001 MILLISIEVERT)
2. TEMPORAL VARIATIONS ARE GENERALLY CAUSED BY CHANGES IN
METEOROLOGICAL CONDITIONS SUCH AS RAINFALL, WIND AND
BAROMETRIC PRESSURE.
3. SPATIAL VARIATIONS ARE GENERALLY CAUSED BY DIFFERENCES IN
THE RADIOACTIVE CONTENT OF LOCAL ROCK AND SOIL.
4. THE DATA DISPLAYED IS PROVISIONAL. ONLY LIMITED DATA
VALIDATION HAS BEEN CARRIED OUT.
5. THE RANGE OF RELATIVE HUMIDITY IN THE DAILY WEATHER SUMMARY
ORIGINATES FROM THE OBSERVER'S REPORTS OF HOURLY READINGS
OF THE DAY. THIS FOLLOWS THE LONG-TERM PRACTICE OF COLLECTING
CLIMATOLOGICAL DATA OF THE HONG KONG OBSERVATORY FOR OVER A
CENTURY. IT MAY DIFFER FROM THE RELATIVE HUMIDITY RANGE
DERIVED FROM THE 1-MINUTE REPORTS OF THE AUTOMATIC WEATHER
STATION.
DISPATCHED BY HONG KONG OBSERVATORY AT 00:17 HKT ON 19.12.2023
Ends/Tuesday, December 19, 2023
Issued at HKT 0:17
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