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Automatic Regional Weather Forecast in Hong Kong & Pearl River Delta Region

Local Weather Forecast | Regional Temperature Forecast in HK
9-day Weather Forecast | UV Index Forecast
Weather Information for South China Coastal Waters

Bulletin issued at 04:02 HKT 06/Aug/2018

At 4 a.m. at the Hong Kong Observatory the air temperature was 29 degrees Celsius and the relative humidity 83 per cent.

Please be reminded that:

The Very Hot Weather Warning is now in force. Very hot weather might cause adverse health effects. Members of the public should take care to avoid heatstroke.

The air temperatures at other places were:

King's Park 29 degrees;
Wong Chuk Hang 27 degrees;
Ta Kwu Ling 26 degrees;
Lau Fau Shan 27 degrees;
Tai Po 27 degrees;
Sha Tin 27 degrees;
Tuen Mun 28 degrees;
Tseung Kwan O 27 degrees;
Sai Kung 28 degrees;
Cheung Chau 28 degrees;
Chek Lap Kok 29 degrees;
Tsing Yi 28 degrees;
Tsuen Wan Ho Koon 26 degrees;
Tsuen Wan Shing Mun Valley 27 degrees;
Hong Kong Park 28 degrees;
Shau Kei Wan 28 degrees;
Kowloon City 28 degrees;
Happy Valley 28 degrees;
Wong Tai Sin 28 degrees;
Stanley 28 degrees;
Kwun Tong 29 degrees;
Sham Shui Po 28 degrees;
Kai Tak Runway Park 28 degrees;
Yuen Long Park 27 degrees;
Tai Mei Tuk 28 degrees.


Note: The data above is provisional. Only limited data validation has been carried out.


Climatological Information for 6 Aug


Local Weather Forecast
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Local Weather Forecast

Automatic Regional Weather Forecast in Hong Kong & Pearl River Delta Region

Current Weather | Regional Temperature Forecast in HK |  9-day Weather Forecast
UV Index Forecast |  Weather Information for South China Coastal Waters

Bulletin updated at 03:45 HKT 06/Aug/2018

Here is the latest weather bulletin issued by the Hong Kong Observatory.

Showers are affecting the coast of Guangdong and the northern part of the South China Sea.

Weather forecast for today

Mainly cloudy with one or two showers and isolated thunderstorms. The minimum temperature will be about 28 degrees. Very hot with sunny periods during the day. The maximum temperature will be around 33 degrees. Light to moderate easterly winds.

Outlook : Very hot with sunny periods and one or two showers in the following couple of days.


(The above forecast period is valid up to 23:59 HKT today, 06/08/2018; Regular update at : around 45 minutes past each hour, 16:15 HKT and 23:15 HKT)



MARINE FORECAST
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Marine Forecast

Weather Information for the Marine Community

Bulletin issued at 21:00 HKT 05/Aug/2018

N0 WARNING.

GENERAL SITUATION AT 050900 UTC:
AN EASTERLY AIRSTREAM IS AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 051300 UTC:

HONG KONG= E 4. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. TEMP 28-33 C. =
KWANGTUNG= E 4, OCNL 5. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 2 M. =
TAIWAN STRAIT= SE 4, OCNL 5. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 2 M. =
BASHI= E 4, OCNL 5. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 2 M. =
PRATAS= E 4, OCNL 5. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 2 M. =
BALINTANG= E 4, OCNL 5. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 2 M. =
SCARBOROUGH= E TO SE 4-5, OCNL 6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 3 M. =
PARACEL= E 4, OCNL 5. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 2 M. =
TONKIN= E TO SE 4. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. =
DANANG= E TO SE 4, OCNL 5. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 2 M. =
NNNN
Abbreviations:
KT, VRB, SLW, FRQ - knot, variable, slow, frequent STNR, QSTNR, C - stationary, quasi-stationary, degrees celsius WKN, INTSF, INTST, NC - weaken, intensify, intensity, no change LGT, ISOL, SCT, OCNL - light, isolated, scattered, occasional CLD, DZ, TS - cloudy, drizzle, thunderstorm

The date and time are specified by a 6-digit number DDHHMM. DD stands for the day of month, HH represents the hour while MM indicates the minute in UTC.



SOUTH CHINA COASTAL WATERS
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South China Coastal Waters

Current Weather | Local Weather Forecast | Regional Temperature Forecast in HK
9-day Weather Forecast | UV Index Forecast | Weather Information for Fishermen

Bulletin issued at 03:30 HKT 06/Aug/2018

Weather information for south China coastal waters issued by the Hong Kong Observatory at 3:30 a.m. on 06 August 2018

Weather Situation:
An easterly airstream is affecting the south China coastal waters.

Area forecasts for the next 24 hours

Hong Kong Adjacent Waters:
East force 4.
Isolated squally showers and thunderstorms.
Moderate seas.

Nan'ao, Shanwei, South of Hong Kong and Shangchuan Dao:
East force 4, occasionally force 5.
Isolated squally showers and thunderstorms.
Moderate seas.

Outlook for the next 48 hours
Easterly winds of force 4 to 5, becoming force 6 later. Isolated squally showers and thunderstorms.

Latest reports from south China coastal weather stations
--------------------------------------------------------

Waglan Island Wind variable force 1
  Visibility 41 Kilometres

Shantou Wind west-southwest force 1
  Visibility 23 Kilometres

Dongsha Wind east-southeast force 2
  Visibility 10 Kilometres

Huangmaozhou Wind south-southeast force 2

Macau Wind south force 1
  Visibility 20 Kilometres

Xisha Wind northeast force 1
  Visibility 30 Kilometres


WEATHER FORECAST FOR LOCAL AVIATION
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Weather Forecast for Local Aviation

Bulletin issued at 01:30 HKT 06/AUG/2018
(Next update at 9:00-9:30 HKT 06/AUG/2018)
I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     ISOL CUNIM/TS AND ASSOCIATED HAZARDS.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     ISOLATED CONVECTION IS EXPECTED TO AFFECT
     COASTAL AREAS OF GUANGDONG.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 0200 TO 1200 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  180/5-10
                  TEMPO VRB/15G25 IN TS                27-34
   B.   2000 FT:  160/10                               24
   C.   5000 FT:  100/10                               20
   D.  10000 FT:  100/10                               11
   E.  18000 FT:  330/10                               MS3
   F.  24000 FT:  070/10                               MS14
   G.  30000 FT:  150/10                               MS28
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      MAINLY CLOUDY WITH A FEW SHOWERS. ISOLATED
      THUNDERSTORMS.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 2000 FT.  TEMPO FEW CB 1000 FT  SCT 2000 FT
      BKN 4000 FT.
   K. VISIBILITY    : 10 KM.  TEMPO 4000 M IN SHOWERS.  TEMPO 2000 M IN TS.
   L. 0 DEG. C LEVEL: 17000 FT      10 DEG. C LEVEL(S) : 11200 FT
   M. TURBULENCE    : MOD TO SEV NEAR CUNIM/TS.
   N. SEA STATE     : 0.5-1.0 M     SEA TEMPERATURE    : 27 DEG
IV.  FURTHER OUTLOOK: 
     LIGHT TO MODERATE EAST TO SOUTHEASTERLY WINDS.
     SUNNY PERIODS APART FROM ISOLATED SHOWERS AND
     THUNDERSTORMS.=
===================================================================
Note: The forecast could be updated before the next issue time 
whenever there is newly expected occurrence or non-occurrence 
of significant weather as described below which may be hazardous 
to aircraft within 100-km radius of Hong Kong:

(a) Change of the tropical cyclone category
(b) Strong, Gale, Storm, and Hurricane force winds
(c) Thunderstorm/CBs
(d) Severe gusts
(e) Severe turbulence
(f) Significant low stratus
(g) Fog or thick haze/sandstorm/duststorm 
    causing significant reduction of visibility
(h) Volcanic ash
(i) Radioactive cloud
===================================================================
Aviation Weather Observation and Forecast Information for Hong Kong International Airport
To know more about clouds, please see Commonly observed clouds in Hong Kong.


sigmet
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Significant Weather Information (SIGMET)

The Airport Meteorological Office is responsible for monitoring hazardous weather and phenomena in the atmosphere that may affect the safety of aircraft operations within a designated airspace over the northern part of the South China Sea. Weather forecasters at the Airport Meteorological Office issues SIGMET information when hazardous weather and phenomena in the atmosphere such as thunderstorms, tropical cyclones, turbulence, icing occur or are expected to occur in the airspace.

The latest significant weather information
issued by the Hong Kong Observatory at 22:30 HKT on 05 Aug 18

VHHK SIGMET 4 VALID 051430/051730 VHHH- VHHK HONG KONG FIR EMBD TS FCST WI N1954 E11636 - N1642 E11400 - N1854 E11206 - N1912 E11218 - N2018 E11542 - N1954 E11636 TOP FL430 MOV W 10KT WKN=

Please click here for more about the SIGMET


Tropical Cyclone Warning
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Tropical Cyclone Warning

There is no tropical cyclone warning signal.

For other tropical cyclone related information, please visit the World Meteorological Organization Web Site - Severe Weather Information Centre.


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Last revision date: <06 Aug 2018> 

TROPICAL CYCLONE WARNING FOR SHIPPING
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Tropical Cyclone Warning for Shipping

There is no tropical cyclone warning for shipping*.




*Tropical cyclone warnings for shipping are issued by the Hong Kong Observatory for tropical cyclones located within the area bounded by 105E and 125E , 10N and 30N.




For other tropical cyclone related information, please visit the World Meteorological Organization Web Site - Severe Weather Information Centre.


YESTERDAY'S WEATHER AND RADIATION LEVEL Skip to main content
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Yesterday's Weather and Radiation Level

Bulletin issued at 00:15 HKT 06/Aug/2018
HKO Readings & Radiation Level

Yesterday's Weather and Radiation Level:
------------------------------------------------------

Hong Kong Observatory
Maximum Air Temperature                     33.1 C
Minimum Air Temperature                     28.9 C
Grass Minimum Temperature                   27.1 C
Relative Humidity                        65 - 84 Percent
Rainfall                                     0.5 mm 
Total rainfall since 1st January           989.2 mm
Against an average of                     1548.9 mm

Other Stations                Min                  Max
King's Park                  28.3 C               33.0 C
Wong Chuk Hang               26.7 C               32.3 C
Ta Kwu Ling                  25.2 C               33.6 C
Lau Fau Shan                 26.9 C               32.8 C
Tai Po                       26.9 C               32.1 C
Sha Tin                      26.7 C               33.6 C
Tuen Mun                     27.4 C               33.5 C
Tseung Kwan O                25.9 C               33.2 C
Sai Kung                     27.3 C               32.7 C
Cheung Chau                  27.0 C               32.0 C
Chek Lap Kok                 28.8 C               35.1 C
Tsing Yi                     27.1 C               33.2 C
Tsuen Wan Ho Koon            26.1 C               31.6 C
Tsuen Wan Shing Mun Valley   26.5 C               32.8 C
Hong Kong Park               27.3 C               33.3 C
Shau Kei Wan                 27.5 C               32.1 C
Kowloon City                 28.1 C               33.8 C
Happy Valley                 27.1 C               34.3 C
Wong Tai Sin                 27.6 C               34.7 C
Stanley                      27.3 C               32.6 C
Kwun Tong                    28.0 C               33.3 C
Sham Shui Po                 27.7 C               33.4 C
Kai Tak Runway Park          27.5 C               32.4 C
Yuen Long Park               26.4 C               34.0 C
Tai Mei Tuk               27.4 C               34.2 C

Duration of sunshine (King's Park):              5.6 H
The mean UV index recorded at King's Park yesterday was 4,
the UV intensity was Moderate.
The maximum UV index for yesterday was 10.
 

Yesterday's (05 Aug 2018) average ambient gamma radiation
dose rate taken outdoors in Hong Kong ranged from 0.08 to
0.14 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                             0.09
Kat O                               0.10
Yuen Ng Fan                         0.12
Tai Mei Tuk                         0.11
Sha Tau Kok                         0.10
Kwun Tong                           0.12
Sai Wan Ho                          0.08
King's Park                         0.14
Tsim Bei Tsui                       0.13
Cape D'Aguilar                      0.13
Chek Lap Kok                        0.14

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.
Climatological Information for 05 Aug
Last revision date: <06 Aug 2018> 

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