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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 12:02 HKT 28/Mar/2017

At noon at the Hong Kong Observatory the air temperature was 23 degrees Celsius and the relative humidity 64 per cent.
During the past hour the mean UV Index recorded at King's Park was 7. The intensity of UV radiation was high.

The air temperatures at other places were:

King's Park 23 degrees;
Wong Chuk Hang 24 degrees;
Ta Kwu Ling 24 degrees;
Lau Fau Shan 27 degrees;
Tai Po 21 degrees;
Sha Tin 23 degrees;
Tuen Mun 24 degrees;
Tseung Kwan O 23 degrees;
Sai Kung 22 degrees;
Cheung Chau 23 degrees;
Chek Lap Kok 25 degrees;
Tsing Yi 24 degrees;
Shek Kong 25 degrees;
Tsuen Wan Ho Koon 23 degrees;
Tsuen Wan Shing Mun Valley 25 degrees;
Hong Kong Park 23 degrees;
Shau Kei Wan 21 degrees;
Kowloon City 23 degrees;
Happy Valley 24 degrees;
Wong Tai Sin 24 degrees;
Stanley 21 degrees;
Kwun Tong 22 degrees;
Sham Shui Po 25 degrees;
Kai Tak Runway Park 22 degrees;
Yuen Long Park 25 degrees;
Tai Mei Tuk 24 degrees.

No rainfall was recorded at the Hong Kong Observatory between midnight last night and midday today.


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


Climatological Information for 28 Mar


Local Weather Forecast
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Local Weather Forecast RSS

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 11:45 HKT 28/Mar/2017

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

A mild easterly airstream is affecting the coast of Guangdong.

Weather forecast for this afternoon and tonight

Sunny periods in the afternoon. Mainly cloudy tonight. Moderate easterly winds, fresh at times.

Outlook : Becoming humid with fog in the next couple of days. Rain and thunderstorms on Friday with temperatures falling. Weather improving over the weekend.


(The above forecast period is valid up to 23:59 HKT today, 28/03/2017; 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 09:00 HKT 28/Mar/2017

GALE WARNING AREAS: BASHI, BALINTANG AND SCARBOROUGH.

GENERAL SITUATION AT 272100 UTC:
AN EASTERLY AIRSTREAM IS AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 280100 UTC:

HONG KONG= E 5-6. LGT RAIN PATCHES LATER. SEA 2-3 M. SWELL E TO NE 2 M. TEMP 22-19 C. =
KWANGTUNG= E 5-6, UP TO 7 IN E. RAIN PATCHES. SEA UP TO 4 M. SWELL NE 2-3 M. =
TAIWAN STRAIT= NE 5-6, OCNL 7. FINE. RAIN PATCHES LATER. SEA UP TO 4 M. SWELL NE 2 M. =
BASHI= E 6-7, 8 AT FIRST. RAIN PATCHES. SEA 3-4 M, 6 M AT FIRST. SWELL NE 3 M. =
PRATAS= E 6-7. RAIN PATCHES. SEA 3-4 M. SWELL NE 2-3 M. =
BALINTANG= E 6-7, 8 AT FIRST. RAIN PATCHES. SEA 3-4 M, 6 M AT FIRST. SWELL NE 3 M. =
SCARBOROUGH= E TO NE 6-7, UP TO 8 IN N AT FIRST. FINE. SEA 3-4 M, UP TO 6 M AT FIRST. SWELL NE 3 M. =
PARACEL= E 5-6, OCNL 7 AT FIRST. RAIN PATCHES. SEA 2-3 M, UP TO 4 M AT FIRST. SWELL NE 2-3 M. =
TONKIN= E 4-5. RAIN PATCHES. SEA UP TO 2 M. =
DANANG= E 4-5, UP TO 6 AT FIRST. RAIN PATCHES. SEA 2 M, UP TO 3 M AT FIRST. 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.



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 12:30 HKT 28/Mar/2017

Weather information for south China coastal waters issued by the Hong Kong Observatory at 12:30 p.m. on 28 March 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 4 to 5, up to force 6 at first.
A few light rain patches.
Moderate seas, rough at first.

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

Shanwei and South of Hong Kong:
East force 5 to 6, force 7 at first.
Moderate to rough seas.

Shangchuan Dao:
East force 4 to 5, up to force 6 at first.
Moderate seas, rough at first.

Outlook for the next 48 hours
East to southeasterly winds of force 4 to 5.

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

Waglan Island Wind northeast force 4
  Visibility 12 Kilometres

Shantou Wind east-southeast force 1
  Visibility 23 Kilometres

Dongsha Wind east force 4
  Visibility 10 Kilometres

Huangmaozhou Wind east-northeast force 6

Macau Wind east force 2
  Visibility 9 Kilometres

Xisha Wind northeast force 2
  Visibility 13 Kilometres


WEATHER FORECAST FOR LOCAL AVIATION
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Weather Forecast for Local Aviation

Bulletin issued at 09:30 HKT 28/MAR/2017
(Next update at 17:30 HKT 28/MAR/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 1000 TO 2000 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  090/10-15
       OFFSHORE:  070/20-25                            20-25
   B.   2000 FT:  130/20-25                            15
   C.   5000 FT:  170/10                               13
   D.  10000 FT:  270/15                               5
   E.  18000 FT:  250/40                               MS9
   F.  24000 FT:  250/60                               MS18
   G.  30000 FT:  250/80                               MS32
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL
   I. WEATHER       : 
      MAINLY CLOUDY. SUNNY INTERVALS DURING THE DAY.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 2500 FT  SCT 3500 FT.
   K. VISIBILITY    : 8 KM.
   L. 0 DEG. C LEVEL: 13000 FT      10 DEG. C LEVEL(S) : 7200 FT
   M. TURBULENCE    : MOD TO SEV OFFSHORE AND  NEAR HILLS
   N. SEA STATE     : 3.0-4.0 M     SEA TEMPERATURE    : 18 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE TO FRESH EASTERLY WINDS. MAINLY CLOUDY
     WITHA FEW LIGHT RAIN PATCHES.=
===================================================================
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 17:25 HKT on 25 Mar 17

VHHK SIGMET 1 VALID 250925/251325 VHHH- VHHK HONG KONG FIR SEV ICE FCST N OF LINE N2100 E11730 - N1954 E11130 FL200/250 MOV E 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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Last revision date: <06 Feb 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 28/Mar/2017
HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     21.5 C
Minimum Air Temperature                     16.3 C
Grass Minimum Temperature                   14.6 C
Relative Humidity                        39 - 71 Percent
Rainfall                                     0.0 mm 
Total rainfall since 1st January            53.5 mm
Against an average of                      147.0 mm

Other Stations                Min                  Max
King's Park                  15.6 C               22.3 C
Wong Chuk Hang               16.4 C               22.0 C
Ta Kwu Ling                  10.9 C               24.3 C
Lau Fau Shan                 13.5 C               25.8 C
Tai Po                       13.5 C               21.7 C
Sha Tin                      14.6 C               22.2 C
Tuen Mun                     15.0 C               24.2 C
Tseung Kwan O                14.4 C               22.1 C
Sai Kung                     15.4 C               21.6 C
Cheung Chau                  15.4 C               22.1 C
Chek Lap Kok                 15.3 C               24.5 C
Tsing Yi                     15.8 C               22.8 C
Shek Kong                    12.4 C               23.9 C
Tsuen Wan Ho Koon            14.0 C               22.1 C
Tsuen Wan Shing Mun Valley   15.5 C               23.2 C
Hong Kong Park               15.4 C               21.5 C
Shau Kei Wan                 15.5 C               21.0 C
Kowloon City                 15.4 C               22.5 C
Happy Valley                 16.4 C               22.5 C
Wong Tai Sin                 16.5 C               22.3 C
Stanley                      16.4 C               21.9 C
Kwun Tong                    15.9 C               20.8 C
Sham Shui Po                 15.8 C               23.2 C
Kai Tak Runway Park          16.9 C               21.1 C
Yuen Long Park               13.3 C               24.3 C
Tai Mei Tuk               14.4 C               23.6 C

Duration of sunshine (King's Park):              4.3 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 8.
Sea surface temperature (Waglan Island):        20.3 C 

Yesterday's (27 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                          0.09
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 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 27 Mar
Last revision date: <28 Mar 2017> 

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