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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 23:02 HKT 09/Oct/2018

At 11 p.m. at the Hong Kong Observatory the air temperature was 26 degrees Celsius and the relative humidity 80 per cent.

The air temperatures at other places were:

King's Park 25 degrees;
Wong Chuk Hang 24 degrees;
Ta Kwu Ling 24 degrees;
Lau Fau Shan 25 degrees;
Tai Po 25 degrees;
Sha Tin 25 degrees;
Tuen Mun 25 degrees;
Tseung Kwan O 23 degrees;
Sai Kung 25 degrees;
Cheung Chau 24 degrees;
Chek Lap Kok 26 degrees;
Tsing Yi 26 degrees;
Shek Kong 24 degrees;
Tsuen Wan Ho Koon 23 degrees;
Tsuen Wan Shing Mun Valley 24 degrees;
Hong Kong Park 25 degrees;
Shau Kei Wan 25 degrees;
Kowloon City 25 degrees;
Happy Valley 25 degrees;
Wong Tai Sin 25 degrees;
Stanley 25 degrees;
Kwun Tong 25 degrees;
Sham Shui Po 25 degrees;
Kai Tak Runway Park 26 degrees;
Yuen Long Park 25 degrees;
Tai Mei Tuk 25 degrees.


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


Climatological Information for 9 Oct


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 23:15 HKT 09/Oct/2018

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

An easterly airstream affected the coast of Guangdong today. Locally, there were sunny intervals and isolated showers. Besides, a cold front formed over central China today and moved southwards gradually. It is expected to reach the coastal areas of Guangdong tomorrow. Then the weather will be slightly cooler with a few rain patches over the region in the following couple of days.

Weather forecast for Hong Kong (Wednesday, 10 Oct 2018)

Mainly cloudy with a few showers. Sunny intervals during the day. Temperatures will range between 24 and 29 degrees. Moderate easterly winds, becoming north to northeasterlies.

Outlook : Slightly cooler with a few rain patches in the following couple of days.


(The above forecast period is valid up to 23:59 HKT tomorrow, 10/10/2018; 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/Oct/2018

GALE WARNING AREA: TAIWAN STRAIT.

GENERAL SITUATION AT 090900 UTC:
COLD FRONT 23N 106E 24N 110E 25N 116E S 15KT.

MARINE FORECAST FOR 24 HOURS FROM 091300 UTC:

HONG KONG= E 4-5, BEC N 4-5. A FEW SHOWERS. SEA UP TO 2 M. TEMP 24-29 C. =
KWANGTUNG= E TO NE 5-6, BEC N 5-6. ISOL SHOWERS AND TS. SEA 2-3 M. =
TAIWAN STRAIT= NE 5-6, 7-8 LATER. ISOL SHOWERS. SEA 2-3 M, 4-6 M LATER. SWELL NE UP TO 2 M. =
BASHI= E TO NE 4-5, UP TO 6 LATER. ISOL SHOWERS. SEA UP TO 2 M, UP TO 3 M LATER. SWELL NE UP TO 2 M. =
PRATAS= E TO NE 4-5, UP TO 6 LATER. ISOL SHOWERS. SEA UP TO 2 M, UP TO 3 M LATER. =
BALINTANG= E TO NE 4-5, UP TO 6 LATER. ISOL SHOWERS. SEA UP TO 2 M, UP TO 3 M LATER. SWELL NE UP TO 2 M. =
SCARBOROUGH= NE 4-5. ISOL SHOWERS. SEA UP TO 2 M. =
PARACEL= E TO NE 4-5, UP TO 6 LATER. ISOL SHOWERS AND TS. SEA UP TO 2 M, UP TO 3 M LATER. =
TONKIN= E TO NE 4-5, BEC N 6. ISOL SHOWERS AND TS. SEA UP TO 2 M, BEC 3 M. =
DANANG= E TO NE 4-5, BEC N 6. ISOL SHOWERS AND TS. SEA UP TO 2 M, BEC 3 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 23:30 HKT 09/Oct/2018

Weather information for south China coastal waters issued by the Hong Kong Observatory at 11:30 p.m. on 09 October 2018

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

Weather Situation:
An easterly airstream is affecting the south China coastal waters. Meanwhile, a cold front over the northern part of Guangdong is moving southwards gradually. It is expected to reach the south China coastal waters tomorrow.

Area forecasts for the next 24 hours

Hong Kong Adjacent Waters:
East force 4 to 5, becoming north force 4 to 5.
A few showers.
Moderate seas.

Nan'ao, Shanwei and South of Hong Kong:
East to northeast force 5 to 6, becoming north force 5 to 6.
Moderate to rough seas.

Shangchuan Dao:
East to northeast force 4 to 5, becoming north force 5 to 6.
Isolated showers and thunderstorms.
Moderate seas, becoming rough.

Outlook for the next 48 hours
Northeasterly winds of force 6 to 7. Isolated showers and thunderstorms.

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

Waglan Island Wind east force 1
  Visibility 16 Kilometres

Shantou Wind east-northeast force 2
  Visibility 30 Kilometres

Dongsha Wind northeast force 2
  Visibility 10 Kilometres

Huangmaozhou Wind east-southeast force 2

Macau Wind south-southeast force 1
  Visibility 9 Kilometres

Xisha Wind east-northeast force 2
  Visibility 29 Kilometres


WEATHER FORECAST FOR LOCAL AVIATION
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Weather Forecast for Local Aviation

Bulletin issued at 17:30 HKT 09/OCT/2018
(Next update at 01:30 HKT 10/OCT/2018)
I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     NIL.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     AN EASTERLY AIRSTREAM IS AFFECTING THE COAST OF
     GUANGDONG. MEANWHILE, A COLD FRONT HAS FORMED
     OVER THE NORTHERN PART OF SOUTHERN CHINA AND IS
     MOVING SOUTHWARDS GRADUALLY. IT IS EXPECTED TO
     REACH THE COASTAL AREAS TOMORROW.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1800 TO 0400 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  100/5-10
       OFFSHORE:  100/10-15                            28-24
   B.   2000 FT:  110/10-15                            21
   C.   5000 FT:  040/10                               16
   D.  10000 FT:  270/10                               8
   E.  18000 FT:  260/20                               MS7
   F.  24000 FT:  260/30                               MS16
   G.  30000 FT:  270/35                               MS27
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL
   I. WEATHER       : 
      MAINLY CLOUDY WITH A FEW SHOWERS.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 2000 FT SCT 4000 FT
   K. VISIBILITY    : 9 KM.  TEMPO 4000 M IN SHOWERS.
   L. 0 DEG. C LEVEL: 16500 FT      10 DEG. C LEVEL(S) : 9000 FT
   M. TURBULENCE    : NIL
   N. SEA STATE     : 1.0-1.5 M     SEA TEMPERATURE    : 27 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE EASTERLY WINDS BECOMING MODERATE NORTH
     TO NORTHEASTERLIES. 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 10:00 HKT on 02 Oct 18

VHHK SIGMET 1 VALID 020200/020600 VHHH- VHHK HONG KONG FIR EMBD TS FCST WI N1800 E11506 - N1642 E11400 - N1754 E11254 - N1800 E11506 TOP FL400 MOV W 5KT 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: <07 Oct 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 09/Oct/2018
HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     29.8 C
Minimum Air Temperature                     24.3 C
Grass Minimum Temperature                   23.8 C
Relative Humidity                        60 - 92 Percent
Rainfall                                     2.0 mm 
Total rainfall since 1st January          1978.2 mm
Against an average of                     2269.5 mm

Other Stations                Min                  Max
King's Park                  23.8 C               29.6 C
Wong Chuk Hang               24.5 C               29.7 C
Ta Kwu Ling                  23.0 C               30.9 C
Lau Fau Shan                 22.5 C               29.2 C
Tai Po                       23.9 C               29.4 C
Sha Tin                      24.2 C               29.6 C
Tuen Mun                     24.0 C               30.4 C
Tseung Kwan O                24.2 C               29.8 C
Sai Kung                     24.9 C               28.7 C
Cheung Chau                  24.0 C               31.7 C
Chek Lap Kok                 25.0 C               32.5 C
Tsing Yi                     24.8 C               30.4 C
Shek Kong                    23.2 C               32.4 C
Tsuen Wan Ho Koon            22.5 C               29.7 C
Tsuen Wan Shing Mun Valley   22.9 C               30.5 C
Hong Kong Park               24.5 C               29.2 C
Shau Kei Wan                 25.0 C               27.9 C
Kowloon City                 23.4 C               30.5 C
Happy Valley                 25.0 C               30.7 C
Wong Tai Sin                 24.3 C               29.7 C
Stanley                      25.1 C               28.5 C
Kwun Tong                    24.6 C               28.9 C
Sham Shui Po                 23.9 C               30.9 C
Kai Tak Runway Park          25.0 C               28.3 C
Yuen Long Park               22.1 C               30.9 C
Tai Mei Tuk               23.9 C               31.8 C

Duration of sunshine (King's Park):              9.5 H
The mean UV index recorded at King's Park yesterday was 3,
the UV intensity was Moderate.
The maximum UV index for yesterday was 7.
 

Yesterday's (08 Oct 2018) average ambient gamma radiation
dose rate taken outdoors in Hong Kong ranged from 0.09 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                         0.12
Sha Tau Kok                         0.10
Kwun Tong                           0.12
Sai Wan Ho                          0.09
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 08 Oct
Last revision date: <09 Oct 2018> 

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