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Bulletin issued at 10:02 HKT 16/Mar/2018

At 10 a.m. at the Hong Kong Observatory the air temperature was 23 degrees Celsius and the relative humidity 82 per cent.
During the past hour the mean UV Index recorded at King's Park was 3. The intensity of UV radiation was moderate.

The air temperatures at other places were:

King's Park 23 degrees;
Wong Chuk Hang 23 degrees;
Ta Kwu Ling 23 degrees;
Lau Fau Shan 21 degrees;
Tai Po 24 degrees;
Sha Tin 23 degrees;
Tuen Mun 25 degrees;
Tseung Kwan O 23 degrees;
Sai Kung 22 degrees;
Cheung Chau 23 degrees;
Chek Lap Kok 22 degrees;
Tsing Yi 23 degrees;
Shek Kong 24 degrees;
Tsuen Wan Ho Koon 22 degrees;
Tsuen Wan Shing Mun Valley 25 degrees;
Hong Kong Park 22 degrees;
Shau Kei Wan 23 degrees;
Kowloon City 23 degrees;
Happy Valley 25 degrees;
Wong Tai Sin 24 degrees;
Stanley 21 degrees;
Kwun Tong 23 degrees;
Sham Shui Po 25 degrees;
Kai Tak Runway Park 22 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 16 Mar

Regional Weather in Hong Kong

Information on Tropical Cyclones

Hong Kong Climatology


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Bulletin updated at 09:45 HKT 16/Mar/2018

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

Winds are weak over the coast of Guangdong. Locally, it was foggy this morning. Visibility at Waglan Island stayed around 100 metres. Besides, a fresh to strong easterly airstream is expected to reach the coast of Guangdong overnight.

Weather forecast for today

Mainly fine and warm. Foggy in the morning. Light winds, winds will strengthen from the east overnight.

Outlook : Windy tomorrow, sunny periods in the following couple of days. Weather will be unsettled on next Tuesday.


(The above forecast period is valid up to 23:59 HKT today, 16/03/2018; Regular update at : around 45 minutes past each hour, 16:15 HKT and 23:15 HKT)

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MARINE FORECAST
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Marine Forecast

Weather Information for the Marine Community

Bulletin issued at 09:00 HKT 16/Mar/2018

GALE WARNING AREA: TAIWAN STRAIT.

GENERAL SITUATION AT 152100 UTC:
AN SOUTHEASTERLY AIRSTREAM IS GENERALLY AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 160100 UTC:

HONG KONG= SE 3-4, E TO NE UP TO 6 LATER. DOWN TO 100 M IN FOG PATCHES. LGT RAIN PATCHES LATER. SEA UP TO 3 M LATER. TEMP 26-19 C. =
KWANGTUNG= SE 4, E TO NE UP TO 7 LATER. DOWN TO 500 M IN FOG PATCHES. SEA UP TO 4 M LATER. SWELL NE 2-3 M LATER. =
TAIWAN STRAIT= NE 4-5, BEC 7-8. DOWN TO 500 M IN FOG PATCHES AT FIRST. SEA UP TO 2 M, BEC 4-6 M. SWELL NE 3 M LATER. =
BASHI= SE 4-5, BEC NE 6-7. ISOL SHOWERS AND TS. SEA UP TO 2 M, BEC 3-4 M. SWELL NE 2-3 M LATER. =
PRATAS= E TO NE 4-5, BEC 6-7. ISOL SHOWERS AND TS. SEA UP TO 2 M, BEC 3-4 M. SWELL NE 2-3 M LATER. =
BALINTANG= SE 4-5, BEC NE 6. ISOL SHOWERS AND TS. SEA UP TO 2 M, BEC 3 M. SWELL NE 2 M LATER. =
SCARBOROUGH= E TO NE 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 M. SWELL NE 2 M LATER. =
PARACEL= E TO SE 4, 5 LATER. DOWN TO 500 M IN FOG PATCHES IN N. SEA UP TO 2 M LATER. SWELL NE 2 M LATER. =
TONKIN= E TO SE 4, 5 LATER. DOWN TO 500 M IN FOG PATCHES. SEA UP TO 2 M LATER. =
DANANG= E TO SE 4-5. DOWN TO 500 M IN FOG PATCHES. SEA UP TO 2 M. SWELL NE UP TO 2 M LATER. =
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.


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    • 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 09:30 HKT 16/Mar/2018

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 9:30 a.m. on 16 March 2018

    Warnings:
    Strong winds in Hong Kong adjacent waters, Nan'ao, Shanwei and south of Hong Kong. Fog in all areas.

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

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    Southeast force 3 to 4, becoming east to northeast up to force 6 later.
    Fog patches, a few light rain patches later.
    Slight to moderate seas, becoming rough later.

    Nan'ao:
    East to northeast force 4, force 7 later.
    Fog patches at first.
    Moderate seas, becoming rough later.

    Shanwei:
    Southeast force 4, becoming east to northeast up to force 7 later.
    Fog patches at first.
    Moderate seas, becoming rough later.

    South of Hong Kong:
    Southeast force 4, becoming east to northeast up to force 6 later.
    Fog patches.
    Moderate seas, becoming rough later.

    Shangchuan Dao:
    East to southeast force 4, force 5 later.
    Fog patches.
    Moderate seas.

    Outlook for the next 48 hours
    Easterly winds of force 5 to 6, up to force 7 in east. Fog patches at first.

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

    Waglan Island Wind north-northeast force 3
      Visibility 220 Metres

    Shantou Wind west-southwest force 2
      Visibility 3100 Metres in mist

    Dongsha Wind calm
      Visibility 10 Kilometres

    Huangmaozhou Wind east-northeast force 1

    Macau Wind southeast force 1
      Visibility 3600 Metres in mist

    Xisha Wind east force 2
      Visibility 12 Kilometres

  • Explanation of Seas or Sea Waves
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  • Visibility Readings in Hong Kong Waters
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    • WEATHER FORECAST FOR LOCAL AVIATION
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    Weather Forecast for Local Aviation

    Bulletin issued at 09:00 HKT 16/MAR/2018
    (Next update at 12:30 HKT 16/MAR/2018)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     FOG AT FIRST.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     WINDS ARE WEAK OVER THE COAST OF GUANGDONG.  IT
     WAS FOGGY THIS MORNING.  BESIDES, A FRESH TO
     STRONG EASTERLY AIRSTREAM IS EXPECTED TO REACH
     THE COAST OF GUANGDONG OVERNIGHT.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1000 TO 2000 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  VRB/5
       OFFSHORE:  120/10                               20-26
   B.   2000 FT:  240/10 BEC 080/10                    19
   C.   5000 FT:  290/10 BEC 090/10                    14
   D.  10000 FT:  270/15                               5
   E.  18000 FT:  280/35                               MS11
   F.  24000 FT:  280/45                               MS23
   G.  30000 FT:  290/70                               MS34
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      1600 - 2000 FT.
   I. WEATHER       : 
      MAINLY FINE AND MISTY.  LOCALIZED FOG AT FIRST.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1000 FT  SCT 2500 FT.
   K. VISIBILITY    : 3000 M IN MIST, BECOMING 6 KM.
                      TEMPO 200 M IN FOG.
   L. 0 DEG. C LEVEL: 12500 FT      10 DEG. C LEVEL(S) : 7000 FT
   M. TURBULENCE    : NIL.
   N. SEA STATE     : 1.0-1.5 M     SEA TEMPERATURE    : 19 DEG
IV.  FURTHER OUTLOOK: 
     LIGHT WINDS, BECOMING FRESH TO STRONG EASTERLY
     WINDS.  MAINLY CLOUDY WITH LIGHT RAIN PATCHES
     AND LOCALIZED MIST.=

    ===================================================================
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 22:05 HKT on 15 Mar 18

    VHHK SIGMET 1 VALID 151010/151410 VHHH- VHHK HONG KONG FIR SEV TURB FCST N OF N20 FL140/240 MOV E 05KT NC= VHHK SIGMET 2 VALID 151410/151810 VHHH- VHHK HONG KONG FIR SEV TURB FCST N OF N20 AND E OF E113 FL140/240 MOV E 05KT 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 00:15 HKT 16/Mar/2018 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     25.1 C
Minimum Air Temperature                     20.1 C
Grass Minimum Temperature                   18.4 C
Relative Humidity                        70 - 91 Percent
Rainfall                                      Trace 
Total rainfall since 1st January            89.4 mm
Against an average of                      103.9 mm

Other Stations                Min                  Max
King's Park                  19.6 C               25.6 C
Wong Chuk Hang               19.6 C               26.0 C
Ta Kwu Ling                  18.5 C               25.1 C
Lau Fau Shan                 18.5 C               24.2 C
Tai Po                       18.9 C               24.5 C
Sha Tin                      18.9 C               25.5 C
Tuen Mun                     19.4 C               25.8 C
Tseung Kwan O                18.3 C               25.5 C
Sai Kung                     19.0 C               23.9 C
Cheung Chau                  18.6 C               24.8 C
Chek Lap Kok                 20.1 C               24.6 C
Tsing Yi                     19.5 C               26.0 C
Tsuen Wan Ho Koon            18.6 C               24.2 C
Tsuen Wan Shing Mun Valley   18.9 C               26.8 C
Hong Kong Park               19.4 C               25.3 C
Shau Kei Wan                 19.0 C               26.1 C
Kowloon City                 19.4 C               26.9 C
Happy Valley                 19.5 C               26.6 C
Wong Tai Sin                 19.2 C               26.7 C
Stanley                      19.2 C               24.8 C
Kwun Tong                    19.5 C               26.0 C
Sham Shui Po                 19.8 C               26.7 C
Kai Tak Runway Park          19.6 C               26.1 C
Yuen Long Park               18.7 C               25.9 C
Tai Mei Tuk               18.8 C               25.4 C

Duration of sunshine (King's Park):              3.3 H
The mean UV index recorded at King's Park yesterday was 2,
the UV intensity was Low.
The maximum UV index for yesterday was 4.
Sea surface temperature (Waglan Island):        18.4 C 

Yesterday's (15 Mar 2018) 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                               0.11
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                        0.15

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 15 Mar
     2003copy right image | Important notices | Privacy policy Last revision date: <16 Mar 2018> 

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