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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 03:02 HKT 10/Dec/2018

At 3 a.m. at the Hong Kong Observatory the air temperature was 16 degrees Celsius and the relative humidity 79 per cent.

The air temperatures at other places were:

King's Park 16 degrees;
Wong Chuk Hang 17 degrees;
Ta Kwu Ling 12 degrees;
Lau Fau Shan 12 degrees;
Tai Po 12 degrees;
Sha Tin 14 degrees;
Tuen Mun 13 degrees;
Tseung Kwan O 16 degrees;
Cheung Chau 15 degrees;
Chek Lap Kok 15 degrees;
Tsing Yi 16 degrees;
Shek Kong 13 degrees;
Tsuen Wan Ho Koon 14 degrees;
Tsuen Wan Shing Mun Valley 15 degrees;
Hong Kong Park 17 degrees;
Shau Kei Wan 17 degrees;
Kowloon City 16 degrees;
Happy Valley 17 degrees;
Wong Tai Sin 17 degrees;
Stanley 18 degrees;
Kwun Tong 17 degrees;
Sham Shui Po 15 degrees;
Kai Tak Runway Park 18 degrees;
Yuen Long Park 13 degrees;
Tai Mei Tuk 13 degrees.


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


Climatological Information for 10 Dec


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 02:45 HKT 10/Dec/2018

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

The northeast monsoon is affecting Guangdong. Meanwhile, a broad band of clouds is bringing rainy weather to the region.

Weather forecast for today

Mainly cloudy. Rather cool with one or two rain patches in the morning. The minimum temperature will be about 13 degrees in the urban areas, and a few degrees lower in the New Territories. Bright periods during the day with a maximum temperature of around 18 degrees. Moderate to fresh north to northeasterly winds.

Outlook : Cold and brighter midweek this week.


(The above forecast period is valid up to 23:59 HKT today, 10/12/2018; 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 09/Dec/2018

GALE WARNING AREAS: KWANGTUNG, TAIWAN STRAIT, BASHI, PRATAS, BALINTANG, SCARBOROUGH, PARACEL, TONKIN AND DANANG.

GENERAL SITUATION AT 090900 UTC:
THE NORTHEAST MONSOON IS AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 091300 UTC:

HONG KONG= N TO NE 5-6, OCNL 7. RAIN PATCHES. SEA UP TO 4 M. SWELL N TO NE 2 M. TEMP 13-18 C. =
KWANGTUNG= N TO NE 6-7, UP TO 8 AT FIRST. RAIN PATCHES. SEA 3-4 M, UP TO 6 M AT FIRST. SWELL N TO NE 2-3 M. =
TAIWAN STRAIT= N TO NE 7-8. RAIN PATCHES. SEA 4-6 M. SWELL N TO NE 3-4 M. =
BASHI= N TO NE 6-7, UP TO 8 AT FIRST. CLD. SEA 3-4 M, UP TO 6 M AT FIRST. SWELL N TO NE 3-4 M. =
PRATAS= N TO NE 6-7, UP TO 8 AT FIRST. LGT RAIN PATCHES. SEA 3-4 M, UP TO 6 M AT FIRST. SWELL N TO NE 3-4 M. =
BALINTANG= N TO NE 6-7, UP TO 8 AT FIRST. LGT RAIN PATCHES. SEA 3-4 M, UP TO 6 M AT FIRST. SWELL N TO NE 3-4 M. =
SCARBOROUGH= N TO NE 6-7, UP TO 8 AT FIRST. CLD. SEA 3-4 M, UP TO 6 M AT FIRST. SWELL N TO NE 3-4 M. =
PARACEL= N TO NE 6-7, UP TO 8 AT FIRST. RAIN PATCHES. SEA 3-4 M, UP TO 6 M AT FIRST. SWELL N TO NE 2-3 M. =
TONKIN= N TO NE 6-7, UP TO 8 AT FIRST. RAIN PATCHES. SEA 3-4 M, UP TO 6 M AT FIRST. SWELL N TO NE 2-3 M. =
DANANG= N TO NE 6-7, UP TO 8 AT FIRST. RAIN PATCHES. SEA 3-4 M, UP TO 6 M AT FIRST. SWELL N TO NE 3-4 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 10/Dec/2018

Weather information for south China coastal waters issued by the Hong Kong Observatory at 3:30 a.m. on 10 December 2018

Warnings:
Gale force winds in Nan'ao, Shanwei, south of Hong Kong and Shangchuan Dao. Strong winds in Hong Kong adjacent waters.

Weather Situation:
The northeast monsoon is affecting the south China coastal waters.

Area forecasts for the next 24 hours

Hong Kong Adjacent Waters:
North to northeast force 5 to 6, occasionally force 7.
A few rain patches.
Moderate to rough seas.

Nan'ao, Shanwei, South of Hong Kong and Shangchuan Dao:
North to northeast force 6 to 7, up to force 8 at first.
Rough seas, very rough at first.

Outlook for the next 48 hours
North to northeasterly winds of force 6 to 7, becoming force 8.

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

Waglan Island Wind north-northeast force 4
  Visibility 23 Kilometres

Dongsha Wind northeast force 4
  Visibility 10 Kilometres

Huangmaozhou Wind east-northeast force 3

Macau Wind north force 2
  Visibility 6 Kilometres

Xisha Wind east-northeast force 3
  Visibility 13 Kilometres


WEATHER FORECAST FOR LOCAL AVIATION
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Weather Forecast for Local Aviation

Bulletin issued at 01:30 HKT 10/DEC/2018
(Next update at 9:00-9:30 HKT 10/DEC/2018)
I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     STRONG WINDS AND SEV TURB.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     THE NORTHEAST MONSOON IS AFFECTING THE SOUTH
     CHINA COASTAL AREAS.  MEANWHILE, A RAINBAND IS
     AFFECTING GUANGDONG.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 0200 TO 1200 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  020/10-15
       OFFSHORE:  070/15-20, OCNL 25                   12-18
   B.   2000 FT:  090/15-20, OCNL 25 AT FIRST          12
   C.   5000 FT:  060/10                               11
   D.  10000 FT:  280/10                               6
   E.  18000 FT:  250/50                               MS5
   F.  24000 FT:  240/60                               MS17
   G.  30000 FT:  250/65                               MS30
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      2300-2900 FT, 3300-3900 FT.
   I. WEATHER       : 
      CLOUDY WITH A FEW RAIN PATCHES.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1500 FT  SCT 3000 FT  BKN 8000 FT.
   K. VISIBILITY    : 7 KM.  TEMPO 4000 M IN RAIN.
   L. 0 DEG. C LEVEL: 14000 FT      10 DEG. C LEVEL(S) : 7000 FT
   M. TURBULENCE    : MOD TO SEV OFFSHORE AND NEAR HILLS.
   N. SEA STATE     : 2.0-3.0 M     SEA TEMPERATURE    : 23 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE TO FRESH NORTH TO NORTHEASTERLY WINDS.
     MAINLY CLOUDY WITH A FEW RAIN PATCHES IN THE
     MORNING, BRIGHT PERIODS DURING THE DAY.=
===================================================================
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.

There is no Significant Weather Information (SIGMET)

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 Dec 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 10/Dec/2018
HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     18.3 C
Minimum Air Temperature                     16.4 C
Grass Minimum Temperature                   16.6 C
Relative Humidity                        71 - 82 Percent
Rainfall                                      Trace 
Total rainfall since 1st January          2152.1 mm
Against an average of                     2377.4 mm

Other Stations                Min                  Max
King's Park                  15.5 C               17.8 C
Wong Chuk Hang               16.3 C               18.1 C
Ta Kwu Ling                  12.3 C               14.4 C
Lau Fau Shan                 12.5 C               15.0 C
Tai Po                       12.3 C               14.6 C
Sha Tin                      14.0 C               16.5 C
Tuen Mun                     13.3 C               15.1 C
Tseung Kwan O                14.9 C               17.7 C
Cheung Chau                  14.7 C               17.5 C
Chek Lap Kok                 14.3 C               16.6 C
Tsing Yi                     15.4 C               18.0 C
Shek Kong                    12.8 C               15.5 C
Tsuen Wan Ho Koon            12.7 C               15.9 C
Tsuen Wan Shing Mun Valley   14.4 C               17.5 C
Hong Kong Park               16.3 C               18.2 C
Shau Kei Wan                 15.6 C               18.5 C
Kowloon City                 14.7 C               17.7 C
Happy Valley                 16.4 C               18.4 C
Wong Tai Sin                 14.6 C               17.9 C
Stanley                      16.3 C               18.6 C
Kwun Tong                    15.2 C               18.3 C
Sham Shui Po                 14.6 C               17.5 C
Kai Tak Runway Park          15.8 C               18.7 C
Yuen Long Park               12.1 C               14.6 C
Tai Mei Tuk               13.7 C               16.6 C

Duration of sunshine (King's Park):              0.5 H
The mean UV index recorded at King's Park yesterday was 0.9,
the UV intensity was Low.
The maximum UV index for yesterday was 3.
 

Yesterday's (09 Dec 2018) 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                           
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                          0.10
King's Park                         0.15
Tsim Bei Tsui                       0.13
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.
Climatological Information for 09 Dec
Last revision date: <10 Dec 2018> 

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