PRESS WEATHER NO. 006 - HKO READINGS & RADIATION LEVEL
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HKO READINGS & RADIATION LEVEL
DISPATCHED BY HONG KONG OBSERVATORY AT 00:15 HKT ON 21.10.2024
YESTERDAY'S WEATHER AND RADIATION LEVEL:
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HONG KONG OBSERVATORY
MAXIMUM AIR TEMPERATURE 29.7 C
MINIMUM AIR TEMPERATURE 26.9 C
GRASS MINIMUM TEMPERATURE 25.7 C
RELATIVE HUMIDITY 65 - 85 PERCENT
RAINFALL 1.9 MM
TOTAL RAINFALL SINCE 1ST JANUARY 2114.9 MM
AGAINST AN AVERAGE OF 2349.2 MM
OTHER STATIONS MIN MAX
KING'S PARK 26.4 C 28.8 C
WONG CHUK HANG 26.9 C 29.8 C
TA KWU LING 25.9 C 30.4 C
LAU FAU SHAN 25.6 C 33.2 C
TAI PO 26.7 C 29.7 C
SHA TIN 26.1 C 29.0 C
TUEN MUN 26.2 C 30.8 C
TSEUNG KWAN O 26.3 C 29.8 C
SAI KUNG 27.0 C 28.4 C
CHEUNG CHAU 26.0 C 29.1 C
CHEK LAP KOK 27.1 C 32.5 C
TSING YI 26.4 C 30.3 C
SHEK KONG 26.1 C 30.7 C
TSUEN WAN HO KOON 24.2 C 29.5 C
TSUEN WAN SHING MUN VALLEY 25.0 C 29.7 C
HONG KONG PARK 26.8 C 28.4 C
SHAU KEI WAN 26.5 C 27.9 C
KOWLOON CITY 25.9 C 29.3 C
HAPPY VALLEY 27.1 C 30.2 C
WONG TAI SIN NO DATA NO DATA
STANLEY 26.4 C 29.2 C
KWUN TONG 26.1 C 28.5 C
SHAM SHUI PO 26.2 C 30.1 C
KAI TAK RUNWAY PARK 27.1 C 29.1 C
YUEN LONG PARK 26.5 C 32.6 C
TAI MEI TUK 26.1 C 27.9 C
DURATION OF SUNSHINE (KING'S PARK): 3.4 H
THE MEAN UV INDEX RECORDED AT KING'S PARK YESTERDAY WAS 2,
THE UV INTENSITY WAS LOW.
THE MAXIMUM UV INDEX FOR YESTERDAY WAS 4.
SEA SURFACE TEMPERATURE (WAGLAN ISLAND): 28.0 C
YESTERDAY'S (20 OCT 2024) AVERAGE AMBIENT GAMMA RADIATION
DOSE RATE TAKEN OUTDOORS IN HONG KONG RANGED FROM 0.08 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 0.09
TAP MUN 0.08
KAT O 0.10
YUEN NG FAN 0.11
TAI MEI TUK 0.11
SHA TAU KOK 0.10
KWUN TONG 0.12
SAI WAN HO 0.08
KING'S PARK 0.15
TSIM BEI TSUI 0.13
CAPE D'AGUILAR 0.12
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 00:15 HKT ON 21.10.2024
Ends/Monday, October 21, 2024
Issued at HKT 0:15
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