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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 13:02 HKT 30/Jun/2017

At 1 p.m. at the Hong Kong Observatory the air temperature was 33 degrees Celsius and the relative humidity 64 per cent.
During the past hour the mean UV Index recorded at King's Park was 6. The intensity of UV radiation was high.

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 31 degrees;
Ta Kwu Ling 32 degrees;
Lau Fau Shan 30 degrees;
Tai Po 30 degrees;
Sha Tin 32 degrees;
Tuen Mun 32 degrees;
Tseung Kwan O 32 degrees;
Sai Kung 31 degrees;
Cheung Chau 31 degrees;
Chek Lap Kok 32 degrees;
Tsing Yi 31 degrees;
Shek Kong 33 degrees;
Tsuen Wan Ho Koon 30 degrees;
Tsuen Wan Shing Mun Valley 31 degrees;
Hong Kong Park 32 degrees;
Shau Kei Wan 30 degrees;
Kowloon City 31 degrees;
Happy Valley 33 degrees;
Wong Tai Sin 33 degrees;
Stanley 31 degrees;
Kwun Tong 32 degrees;
Sham Shui Po 32 degrees;
Kai Tak Runway Park 30 degrees;
Yuen Long Park 32 degrees;
Tai Mei Tuk 33 degrees.

Between 11:45 a.m. and 12:45 p.m., the rainfall recorded in various regions were:

North District 0 to 1 mm.


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


Climatological Information for 30 Jun


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 12:45 HKT 30/Jun/2017

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

The subtropical ridge now affecting the coast of Guangdong and the northern part of the South China Sea is weakening gradually. There are a few showers over the region. Locally, there was sunshine this morning. Temperatures rose to 32 degrees or above over parts of the New Territories around noon.

Weather forecast for this afternoon and tonight

Mainly fine and very hot apart from isolated showers. Cloudy periods tonight. Light to moderate south to southeasterly winds.

Outlook : A few showers in the following few days. It will also be hot with sunny periods.


(The above forecast period is valid up to 23:59 HKT today, 30/06/2017; 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 09:00 HKT 30/Jun/2017

N0 WARNING.

GENERAL SITUATION AT 292100 UTC:
A SOUTHERLY AIRSTREAM IS AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 300100 UTC:

HONG KONG= S TO SE 4. ISOL SHOWERS AND TS. TEMP 32-28 C. =
KWANGTUNG= S TO SE 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 M. =
TAIWAN STRAIT= S 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 M. =
BASHI= S TO SE 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 M. =
PRATAS= S TO SE 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 M. =
BALINTANG= S TO SE 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 M. =
SCARBOROUGH= S 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 M. =
PARACEL= S 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 M. =
TONKIN= S 5-6. ISOL SHOWERS AND TS. SEA 2-3 M. =
DANANG= S 5. ISOL SHOWERS AND TS. SEA 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 12:30 HKT 30/Jun/2017

Weather information for south China coastal waters issued by the Hong Kong Observatory at 12:30 p.m. on 30 June 2017

Weather Situation:
A southerly airstream is affecting the south China coastal waters.

Area forecasts for the next 24 hours

Hong Kong Adjacent Waters:
South to southeast force 4.
Isolated showers and thunderstorms.
Moderate seas.

Nan'ao, Shanwei and South of Hong Kong:
South to southeast force 4 to 5.
Isolated showers and thunderstorms.
Moderate seas.

Shangchuan Dao:
South force 4 to 5.
Isolated showers and thunderstorms.
Moderate seas.

Outlook for the next 48 hours
Southerly winds of force 4 to 5. Isolated showers and thunderstorms.

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

Waglan Island Wind southeast force 1
  Visibility 30 Kilometres

Shantou Wind south-southeast force 2
  Visibility 30 Kilometres

Dongsha Wind southeast force 2
  Visibility 10 Kilometres

Huangmaozhou Wind south force 1

Macau Wind east force 2
  Visibility 35 Kilometres

Xisha Wind south-southwest force 2
  Visibility 30 Kilometres


WEATHER FORECAST FOR LOCAL AVIATION
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Weather Forecast for Local Aviation

Bulletin issued at 09:00 HKT 30/JUN/2017
(Next update at 17:30 HKT 30/JUN/2017)
I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     ISOL CUNIM/TS AND ASSOCIATED HAZARDS.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     A SOUTHERLY AIRSTREAM CONTINUES TO AFFECT THE
     SOUTH CHINA COASTAL AREAS.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1000 TO 2000 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  160/5-10
                  TEMPO VRB/15G25 IN TS
       OFFSHORE:  160/10-15                            29-33
   B.   2000 FT:  180/10-15                            25
   C.   5000 FT:  180/10                               19
   D.  10000 FT:  180/15                               11
   E.  18000 FT:  230/10                               MS3
   F.  24000 FT:  250/10                               MS14
   G.  30000 FT:  260/10                               MS28
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      MAINLY FINE WITH A FEW SHOWERS AND 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) : 10800 FT
   M. TURBULENCE    : MOD TO SEV NEAR CUNIM/TS.
   N. SEA STATE     : 1.0-1.5 M     SEA TEMPERATURE    : 25 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE SOUTHERLY WINDS.  MAINLY CLOUDY WITH A
     FEW SHOWERS.=
===================================================================
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 12:50 HKT on 30 Jun 17

VHHK SIGMET 1 VALID 300450/300850 VHHH- VHHK HONG KONG FIR EMBD TS FCST WI N2324 E11648 - N2342 E11730 - N2230 E11730 - N2200 E11618 - N2306 E11600 - N2324 E11648 TOP FL400 MOV N 10KT NC=

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: <14 Jun 2017> 

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 30/Jun/2017
HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     32.8 C
Minimum Air Temperature                     27.9 C
Grass Minimum Temperature                   26.7 C
Relative Humidity                        64 - 88 Percent
Rainfall                                       0 mm 
Total rainfall since 1st January          1189.8 mm
Against an average of                     1084.2 mm

Other Stations                Min                  Max
King's Park                  27.5 C               32.1 C
Ta Kwu Ling                  24.4 C               34.0 C
Lau Fau Shan                 26.3 C               33.2 C
Tai Po                       26.1 C               33.6 C
Sha Tin                      26.8 C               33.6 C
Tuen Mun                     26.5 C               33.1 C
Tseung Kwan O                26.2 C               34.4 C
Sai Kung                     27.0 C               32.8 C
Cheung Chau                  26.2 C               32.1 C
Chek Lap Kok                 28.4 C               34.2 C
Tsing Yi                     26.6 C               32.0 C
Shek Kong                    26.3 C               34.3 C
Tsuen Wan Ho Koon            25.8 C               31.6 C
Tsuen Wan Shing Mun Valley   26.7 C               32.1 C
Hong Kong Park               27.4 C               32.6 C
Shau Kei Wan                 26.7 C               33.0 C
Kowloon City                 27.4 C               33.3 C
Happy Valley                 27.2 C               34.2 C
Wong Tai Sin                 27.4 C               33.8 C
Stanley                      26.8 C               32.1 C
Kwun Tong                    27.4 C               34.0 C
Sham Shui Po                 27.3 C               32.5 C
Kai Tak Runway Park          27.0 C               33.6 C
Yuen Long Park               26.3 C               33.2 C
Tai Mei Tuk               26.8 C               33.8 C

Duration of sunshine (King's Park):              8.8 H
The mean UV index recorded at King's Park yesterday was 5,
the UV intensity was Moderate.
The maximum UV index for yesterday was 12.
Sea surface temperature (Waglan Island):        24.3 C 

Yesterday's (29 Jun 2017) 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                           0.08
Tap Mun                             0.08
Kat O                               0.08
Yuen Ng Fan                         0.12
Tai Mei Tuk                         0.12
Sha Tau Kok                         0.10
Kwun Tong                           0.11
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 during the period 1987-2016, the background ambient gamma radiation levels may vary between 0.06 and 0.30 microsievert per hour.
  2. The extent of health effects to a person as a result of exposure to radiation is expressed by a physical quantity called equivalent dose, in unit of sievert. Protective action may be required if there is an increase in the ambient gamma dose rate above background such that the total additional dose is expected to exceed 5000 microsieverts in a relatively short period of time. For example, a dose of 5000 microsieverts may be reached when the ambient gamma dose rate is 1000 microsieverts per hour (several thousand times above background) and lasts for 5 hours.
  3. The readings of ambient gamma radiation level from instrument are expressed in unit of gray, which is numerically equal to the gamma dose expressed in sievert.
Climatological Information for 29 Jun
Last revision date: <30 Jun 2017> 

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