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

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9-day Weather Forecast | UV Index Forecast
Weather Information for South China Coastal Waters

Bulletin issued at 04:02 HKT 16/Nov/2017

At 4 a.m. at the Hong Kong Observatory the air temperature was 22 degrees Celsius and the relative humidity 83 per cent.

The air temperatures at other places were:

King's Park 22 degrees;
Wong Chuk Hang 23 degrees;
Ta Kwu Ling 22 degrees;
Lau Fau Shan 21 degrees;
Tai Po 23 degrees;
Sha Tin 23 degrees;
Tuen Mun 22 degrees;
Tseung Kwan O 22 degrees;
Sai Kung 23 degrees;
Cheung Chau 22 degrees;
Chek Lap Kok 23 degrees;
Tsing Yi 23 degrees;
Shek Kong 22 degrees;
Tsuen Wan Ho Koon 21 degrees;
Tsuen Wan Shing Mun Valley 23 degrees;
Hong Kong Park 22 degrees;
Shau Kei Wan 22 degrees;
Kowloon City 22 degrees;
Happy Valley 23 degrees;
Wong Tai Sin 22 degrees;
Stanley 22 degrees;
Kwun Tong 22 degrees;
Sham Shui Po 23 degrees;
Kai Tak Runway Park 23 degrees;
Yuen Long Park 21 degrees;
Tai Mei Tuk 22 degrees.


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


Climatological Information for 16 Nov


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 16/Nov/2017

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

An easterly airstream is affecting the coast of Guangdong. Meanwhile, a band of clouds is covering southern China.

Weather forecast for today

Mainly cloudy. Sunny intervals during the day. Temperatures will range between 22 and 25 degrees. Moderate to fresh easterly winds, occasionally strong offshore at first.

Outlook : Sunny periods on Friday. Windy with a few rain patches and temperatures falling appreciably later on Saturday. Remaining cool early next week.


(The above forecast period is valid up to 23:59 HKT today, 16/11/2017; 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 21:00 HKT 15/Nov/2017

N0 WARNING.

GENERAL SITUATION AT 150900 UTC:
AN EASTERLY AIRSTREAM IS AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 151300 UTC:

HONG KONG= E 5-6, OCNL 7 AT FIRST. CLD. SEA UP TO 4 M. TEMP 22-25 C. =
KWANGTUNG= E TO NE 5-6, OCNL 7. CLD. SEA UP TO 4 M. SWELL NE UP TO 2 M. =
TAIWAN STRAIT= NE 5-6, OCNL 7. FINE. SEA UP TO 4 M. SWELL NE 2 M. =
BASHI= E 5-6. RAIN PATCHES. SEA 2-3 M. SWELL NE 2 M. =
PRATAS= E TO NE 5-6. FINE. SEA 2-3 M. SWELL NE 2 M. =
BALINTANG= E 5-6. RAIN PATCHES. SEA 2-3 M. SWELL NE 2 M. =
SCARBOROUGH= NE 5-6. RAIN PATCHES. SEA 2-3 M. SWELL NE 2 M. =
PARACEL= E TO NE 5-6. FINE. SEA 2-3 M. SWELL NE UP TO 2 M. =
TONKIN= E TO NE 5-6, BEC SE 5-6. RAIN PATCHES. SEA 2-3 M. =
DANANG= E TO SE 5-6. RAIN PATCHES. SEA 2-3 M. SWELL NE 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

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9-day Weather Forecast | UV Index Forecast | Weather Information for Fishermen

Bulletin issued at 03:30 HKT 16/Nov/2017

Weather information for south China coastal waters issued by the Hong Kong Observatory at 3:30 a.m. on 16 November 2017

Warnings:
Strong winds in all areas.

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 5 to 6, occasionally force 7 at first.
Moderate to rough seas.

Nan'ao, Shanwei, South of Hong Kong and Shangchuan Dao:
East to northeast force 5 to 6, occasionally force 7.
Moderate to rough seas.

Outlook for the next 48 hours
Northeasterly winds of force 5 to 6, force 7 to 8 later.

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

Waglan Island Wind east-northeast force 5
  Visibility 15 Kilometres

Shantou Wind east-southeast force 1
  Visibility 18 Kilometres

Huangmaozhou Wind east force 5

Macau Wind east-northeast force 3
  Visibility 12 Kilometres


WEATHER FORECAST FOR LOCAL AVIATION
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Weather Forecast for Local Aviation

Bulletin issued at 01:30 HKT 16/NOV/2017
(Next update at 9:00-9:30 HKT 16/NOV/2017)
I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     STRONG WINDS AND SEV TURB.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     AN EASTERLY AIRSTREAM IS AFFECTING THE SOUTH
     CHINA COASTAL AREAS.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 0200 TO 1200 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  090/10-15
       OFFSHORE:  090/15-20, OCNL 25                   22-25
   B.   2000 FT:  100/15-20, OCNL 25                   17
   C.   5000 FT:  140/10                               16
   D.  10000 FT:  260/15                               8
   E.  18000 FT:  290/20                               MS4
   F.  24000 FT:  310/30                               MS16
   G.  30000 FT:  310/35                               MS30
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      2200-2900FT
   I. WEATHER       : 
      MAINLY CLOUDY. SUNNY INTERVALS DURING THE DAY.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 2000 FT SCT 3000FT.
   K. VISIBILITY    : 10 KM.
   L. 0 DEG. C LEVEL: 17000 FT      10 DEG. C LEVEL(S) : 9600 FT
   M. TURBULENCE    : MOD TO SEV OFFSHORE AND NEAR HILLS.
   N. SEA STATE     : 2.0-2.5 M     SEA TEMPERATURE    : 25 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE EASTERLY WINDS, FRESH OFFSHORE. SUNNY
     INTERVALS 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.

The latest significant weather information
issued by the Hong Kong Observatory at 10:00 HKT on 15 Nov 17

VHHK SIGMET Z99 VALID 150200/150210 VHHH- VHHK HONG KONG FIR THIS IS A TEST SIGMET, PLEASE DISREGARD=

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: <13 Nov 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 16/Nov/2017
HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     23.9 C
Minimum Air Temperature                     22.6 C
Grass Minimum Temperature                   21.7 C
Relative Humidity                        80 - 88 Percent
Rainfall                                       0 mm 
Total rainfall since 1st January          2568.9 mm
Against an average of                     2354.9 mm

Other Stations                Min                  Max
King's Park                  22.1 C               24.0 C
Wong Chuk Hang               22.9 C               24.9 C
Ta Kwu Ling                  21.6 C               24.6 C
Lau Fau Shan                 20.7 C               25.0 C
Tai Po                       22.4 C               23.6 C
Sha Tin                      22.4 C               24.4 C
Tuen Mun                     21.7 C               25.1 C
Tseung Kwan O                21.9 C               23.6 C
Sai Kung                     22.5 C               23.8 C
Cheung Chau                  22.2 C               24.1 C
Chek Lap Kok                 23.4 C               26.0 C
Tsing Yi                     23.2 C               24.9 C
Shek Kong                    21.2 C               24.9 C
Tsuen Wan Ho Koon            20.9 C               24.1 C
Tsuen Wan Shing Mun Valley   22.1 C               24.4 C
Hong Kong Park               22.7 C               23.6 C
Shau Kei Wan                 22.3 C               23.4 C
Kowloon City                 22.0 C               24.3 C
Happy Valley                 22.9 C               25.1 C
Wong Tai Sin                 22.5 C               24.1 C
Stanley                      22.6 C               24.1 C
Kwun Tong                    22.0 C               23.4 C
Sham Shui Po                 22.7 C               25.4 C
Kai Tak Runway Park          23.1 C               24.1 C
Yuen Long Park               21.1 C               25.2 C
Tai Mei Tuk               21.7 C               23.9 C

Duration of sunshine (King's Park):              0.1 H
The mean UV index recorded at King's Park yesterday was 1,
the UV intensity was Low.
The maximum UV index for yesterday was 3.
Sea surface temperature (Waglan Island):        23.6 C 

Yesterday's (15 Nov 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                               0.09
Yuen Ng Fan                         0.11
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 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 15 Nov
Last revision date: <16 Nov 2017> 

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