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

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Bulletin issued at 16:02 HKT 01/Apr/2017

At 4 p.m. at the Hong Kong Observatory the air temperature was 22 degrees Celsius and the relative humidity 54 per cent.
During the past hour the mean UV Index recorded at King's Park was 4. The intensity of UV radiation was moderate.

Please be reminded that:

The Fire Danger Warning is Yellow and the fire risk is high.

The air temperatures at other places were:

King's Park 22 degrees;
Wong Chuk Hang 21 degrees;
Ta Kwu Ling 24 degrees;
Lau Fau Shan 24 degrees;
Tai Po 22 degrees;
Sha Tin 23 degrees;
Tuen Mun 23 degrees;
Tseung Kwan O 22 degrees;
Sai Kung 20 degrees;
Cheung Chau 20 degrees;
Chek Lap Kok 22 degrees;
Tsing Yi 22 degrees;
Shek Kong 25 degrees;
Tsuen Wan Ho Koon 21 degrees;
Tsuen Wan Shing Mun Valley 23 degrees;
Hong Kong Park 22 degrees;
Shau Kei Wan 20 degrees;
Kowloon City 23 degrees;
Happy Valley 23 degrees;
Wong Tai Sin 22 degrees;
Stanley 21 degrees;
Kwun Tong 22 degrees;
Sham Shui Po 22 degrees;
Kai Tak Runway Park 20 degrees;
Yuen Long Park 25 degrees;
Tai Mei Tuk 22 degrees.


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


Climatological Information for 1 Apr

Regional Weather in Hong Kong

Information on Tropical Cyclones

Hong Kong Climatology


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 16:15 HKT 01/Apr/2017

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

The northeast monsoon is bringing fine and dry weather to Guangdong. Locally, the relative humidity in many places was below 60 per cent in the afternoon.

Weather forecast for tonight and tomorrow

Fine. Cool tomorrow morning. The minimum temperature will be about 16 degrees in the urban areas, and one or two degrees lower in the New Territories. Dry during the day with a maximum temperature of around 23 degrees. Moderate to fresh east to northeasterly winds.

Outlook : Sunny periods on Monday and Ching Ming Festival. Humid with fog in the following few days.


(The above forecast period is valid up to 23:59 HKT tomorrow, 02/04/2017; Regular update at : around 45 minutes past each hour, 16:15 HKT and 23:15 HKT)

Information on Tropical Cyclones

Marine Weather Information and Forecast

Weather Information for Aviation

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Weather Information in China

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MARINE FORECAST
Traditional Chinese Simplified Chinese

Marine Forecast

Weather Information for the Marine Community

Bulletin issued at 09:00 HKT 01/Apr/2017

GALE WARNING AREAS: TAIWAN STRAIT, BASHI, BALINTANG AND SCARBOROUGH.

GENERAL SITUATION AT 312100 UTC:
COLD FRONT 17N 115E 20N 125E S 10KT.

MARINE FORECAST FOR 24 HOURS FROM 010100 UTC:

HONG KONG= N TO NE 5-6, OCNL 7. FINE. SEA UP TO 4 M. SWELL NE UP TO 2 M. TEMP 21-16 C. =
KWANGTUNG= NE 6-7. FINE. ISOL SHOWERS AT FIRST. SEA 3-4 M. SWELL NE 2 M. =
TAIWAN STRAIT= NE 7, 8 AT FIRST. FINE. ISOL SHOWERS AT FIRST. SEA 4 M, 6 M AT FIRST. SWELL N TO NE 2-3 M. =
BASHI= NE 7, BEC 8. ISOL SHOWERS AT FIRST. SEA 4 M, BEC 6 M. SWELL N TO NE 2-3 M. =
PRATAS= NE 6-7. ISOL SHOWERS. SEA 3-4 M. SWELL NE 2 M. =
BALINTANG= NE 6-7, BEC 8. ISOL SHOWERS AT FIRST. SEA 3-4 M, BEC 6 M. SWELL NE 2-3 M. =
SCARBOROUGH= NE 4-5, BEC 7-8. ISOL SHOWERS AND TS LATER. SEA 2 M, BEC 4-6 M. SWELL NE 2 M, 3 M LATER. =
PARACEL= NE 6-7. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 3-4 M. SWELL NE 2 M. =
TONKIN= N TO NE 6-7. ISOL SHOWERS AND TS. SEA 3-4 M. SWELL NE UP TO 2 M. =
DANANG= N TO NE 6-7. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 3-4 M. SWELL NE 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.


  • Map showing the 10 forecast areas
  • Tidal Information

    • 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 16:30 HKT 01/Apr/2017

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 4:30 p.m. on 01 April 2017

    Warnings:
    Strong winds in all areas.

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

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    East to northeast force 5 to 6.
    Moderate to rough seas.

    Nan'ao:
    Northeast force 6 to 7.
    Rough seas.

    Shanwei, South of Hong Kong and Shangchuan Dao:
    East to northeast force 6 to 7.
    Rough seas.

    Outlook for the next 48 hours
    East to northeasterly winds of force 6 to 7.

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

    Waglan Island Wind east-southeast force 2
      Visibility 27 Kilometres

    Shantou Wind southeast force 2
      Visibility 26 Kilometres

    Dongsha Wind northeast force 5
      Visibility 10 Kilometres

    Huangmaozhou Wind east-northeast force 4

    Macau Wind north-northeast force 3
      Visibility 12 Kilometres

    Xisha Wind northeast force 2
      Visibility 30 Kilometres

  • Explanation of Seas or Sea Waves
  • Explanation of Swells
  • Descriptive Terms of Wind Speeds
  • Visibility Readings in Hong Kong Waters
  • Map showing forecast areas
  • Tidal Information

    • WEATHER FORECAST FOR LOCAL AVIATION
    Traditional Chinese Simplified Chinese

    Weather Forecast for Local Aviation

    Bulletin issued at 09:30 HKT 01/APR/2017
    (Next update at 17:30 HKT 01/APR/2017)
    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 COASTAL
     AREAS OF GUANGDONG.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1000 TO 2000 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  040/10-15
       OFFSHORE:  040/15-20, OCNL 25 AT FIRST          17-23
   B.   2000 FT:  060/15-20, OCNL 25 AT FIRST          12
   C.   5000 FT:  020/10-15                            10
   D.  10000 FT:  350/15                               6
   E.  18000 FT:  300/40                               MS8
   F.  24000 FT:  270/55                               MS19
   G.  30000 FT:  250/80                               MS30
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      3400-4100 FT
   I. WEATHER       : 
      FINE.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 3000 FT
   K. VISIBILITY    : 10 KM.
   L. 0 DEG. C LEVEL: 14500 FT      10 DEG. C LEVEL(S) : 5000 FT
   M. TURBULENCE    : OCNL MOD TO SEV
   N. SEA STATE     : 2.0-2.5 M     SEA TEMPERATURE    : 19 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE TO FRESH NORTHEASTERLY WINDS. FINE.=

    ===================================================================
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 09:55 HKT on 01 Apr 17

    VHHK SIGMET 1 VALID 010200/010600 VHHH- VHHK HONG KONG FIR EMBD TS FCST S OF N1730 TOP FL380 MOV ESE 10KT WKN= VHHK SIGMET 7 VALID 312200/010200 VHHH- VHHK HONG KONG FIR EMBD TS FCST SE OF LINE N1742 E11306 - N1830 E11524 TOP FL380 MOV ESE 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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    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 04:00 HKT 01/Apr/2017 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     23.7 C
Minimum Air Temperature                     15.5 C
Grass Minimum Temperature                   16.2 C
Relative Humidity                        79 - 97 Percent
Rainfall                                    21.9 mm 
Total rainfall since 1st January            75.7 mm
Against an average of                      161.3 mm

Other Stations                Min                  Max
King's Park                  15.4 C               23.9 C
Wong Chuk Hang               16.0 C               23.7 C
Ta Kwu Ling                  14.5 C               23.0 C
Lau Fau Shan                 14.6 C               23.5 C
Tai Po                       14.9 C               21.7 C
Sha Tin                      15.7 C               22.3 C
Tuen Mun                     15.3 C               23.9 C
Tseung Kwan O                14.6 C               22.5 C
Sai Kung                     15.3 C               21.6 C
Cheung Chau                  14.5 C               23.0 C
Chek Lap Kok                 16.1 C               25.4 C
Tsing Yi                     15.8 C               24.2 C
Shek Kong                    14.7 C               24.3 C
Tsuen Wan Ho Koon            14.2 C               22.7 C
Tsuen Wan Shing Mun Valley   15.4 C               23.9 C
Hong Kong Park               15.3 C               24.0 C
Shau Kei Wan                 15.5 C               22.3 C
Kowloon City                 14.7 C               24.0 C
Happy Valley                 16.5 C               24.9 C
Wong Tai Sin                 15.2 C               23.8 C
Stanley                      15.8 C               22.7 C
Kwun Tong                    15.3 C               23.9 C
Sham Shui Po                 15.6 C               25.0 C
Yuen Long Park               15.0 C               24.6 C
Tai Mei Tuk               14.4 C               22.4 C

Duration of sunshine (King's Park):              0.7 H
The mean UV index recorded at King's Park yesterday was 0.6,
the UV intensity was Low.
The maximum UV index for yesterday was 1.
Sea surface temperature (Waglan Island):        19.0 C 

Yesterday's (31 Mar 2017) average ambient gamma radiation
dose rate taken outdoors in Hong Kong ranged from 0.08 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                           0.08
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                          0.10
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 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 31 Mar
     2003copy right image | Important notices | Privacy policy Last revision date: <01 Apr 2017> 

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