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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 19/Jan/2019

At 4 a.m. at the Hong Kong Observatory the air temperature was 17 degrees Celsius and the relative humidity 74 per cent.

The air temperatures at other places were:

King's Park 17 degrees;
Wong Chuk Hang 17 degrees;
Ta Kwu Ling 17 degrees;
Lau Fau Shan 16 degrees;
Tai Po 17 degrees;
Sha Tin 17 degrees;
Tuen Mun 16 degrees;
Tseung Kwan O 17 degrees;
Sai Kung 17 degrees;
Cheung Chau 17 degrees;
Chek Lap Kok 18 degrees;
Tsing Yi 18 degrees;
Shek Kong 16 degrees;
Tsuen Wan Ho Koon 16 degrees;
Tsuen Wan Shing Mun Valley 17 degrees;
Hong Kong Park 17 degrees;
Shau Kei Wan 17 degrees;
Kowloon City 17 degrees;
Happy Valley 17 degrees;
Wong Tai Sin 17 degrees;
Stanley 17 degrees;
Kwun Tong 17 degrees;
Kai Tak Runway Park 17 degrees;
Yuen Long Park 16 degrees;
Tai Mei Tuk 16 degrees.


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


Climatological Information for 19 Jan


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 19/Jan/2019

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 the region.

Weather forecast for today

Mainly cloudy. Temperatures will range between 17 and 20 degrees. Moderate easterly winds. There will be one or two rain patches later.

Outlook : Mainly cloudy with a few rain patches on Sunday. Temperatures falling significantly early next week and the weather will improve.


(The above forecast period is valid up to 23:59 HKT today, 19/01/2019; 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 18/Jan/2019

GALE WARNING AREAS: BASHI, PRATAS, BALINTANG AND SCARBOROUGH.

GENERAL SITUATION AT 180900 UTC:
AN INTENSE NORTHEAST MONSOON IS AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 181300 UTC:

HONG KONG= E 5-6, OCNL 7. RAIN PATCHES LATER TOMORROW. SEA UP TO 4 M. SWELL NE 2-3 M. TEMP 17-20 C. =
KWANGTUNG= E TO NE 6-7. RAIN PATCHES. SEA 3-4 M. SWELL NE 2-3 M. =
TAIWAN STRAIT= NE 6-7. FINE. SEA 3-4 M. SWELL NE 3 M. =
BASHI= E TO NE 6-7, UP TO 8 AT FIRST. LGT RAIN PATCHES. SEA 3-4 M, UP TO 6 M AT FIRST. SWELL NE 3 M. =
PRATAS= E TO NE 6-7, 8 AT FIRST. RAIN PATCHES. SEA 3-4 M, 6 M AT FIRST. SWELL NE 3 M. =
BALINTANG= E TO NE 7-8. LGT RAIN PATCHES. SEA 4-6 M. SWELL NE 3 M. =
SCARBOROUGH= E TO NE 7-8. RAIN PATCHES. SEA 4-6 M. SWELL NE 3 M. =
PARACEL= NE 6-7. RAIN PATCHES. SEA 3-4 M. SWELL NE 2-3 M. =
TONKIN= NE 4-5, OCNL 6. RAIN PATCHES. SEA UP TO 3 M. SWELL NE 2 M. =
DANANG= NE 5-6, OCNL 7. RAIN PATCHES. SEA UP TO 4 M. SWELL NE 2-3 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 03:30 HKT 19/Jan/2019

Weather information for south China coastal waters issued by the Hong Kong Observatory at 3:30 a.m. on 19 January 2019

Warnings:
Strong winds in all areas.

Weather Situation:
An easterly airstream is affecting the coastal waters of Guangdong.

Area forecasts for the next 24 hours

Hong Kong Adjacent Waters:
East force 5 to 6, occasionally force 7.
A few rain patches later.
Moderate to rough seas.

Nan'ao, Shanwei and South of Hong Kong:
East to northeast force 6 to 7.
Rough seas.

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 6 to 7, becoming force 8 later.

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

Waglan Island Wind east-northeast force 5
  Visibility 11 Kilometres

Shantou Wind east-northeast force 2
  Visibility 25 Kilometres

Dongsha Wind east-northeast force 3
  Visibility 10 Kilometres

Huangmaozhou Wind east-northeast force 4

Macau Wind east-southeast force 1
  Visibility 8 Kilometres

Xisha Wind east-northeast force 2
  Visibility 13 Kilometres


WEATHER FORECAST FOR LOCAL AVIATION
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Weather Forecast for Local Aviation

Bulletin issued at 01:30 HKT 19/JAN/2019
(Next update at 9:00-9:30 HKT 19/JAN/2019)
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 COAST OF
     GUANGDONG.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 0200 TO 1200 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  080/10
       OFFSHORE:  080/15-20, 25 AT FIRST               16-20
   B.   2000 FT:  100/15-20, 25 AT FIRST               12
   C.   5000 FT:  180/15                               11
   D.  10000 FT:  210/10                               9
   E.  18000 FT:  230/25                               MS3
   F.  24000 FT:  250/40                               MS17
   G.  30000 FT:  240/55                               MS30
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL
   I. WEATHER       : 
      MAINLY CLOUDY.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 3000 FT SCT 5000 FT
   K. VISIBILITY    : 7 KM
   L. 0 DEG. C LEVEL: 16500 FT      10 DEG. C LEVEL(S) : 5400 FT
   M. TURBULENCE    : MOD TO SEV OFFSHORE AND  NEAR HILLS AT FIRST
   N. SEA STATE     : 2.0-3.0 M     SEA TEMPERATURE    : 19 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE EASTERLY WINDS.  MAINLY CLOUDY WITH ONE
     OR TWO 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.

There is no Significant Weather Information (SIGMET)

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: <09 Jan 2019> 

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 19/Jan/2019
HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     18.5 C
Minimum Air Temperature                     15.8 C
Grass Minimum Temperature                   13.7 C
Relative Humidity                        70 - 80 Percent
Rainfall                                       0 mm 
Total rainfall since 1st January             4.4 mm
Against an average of                       12.8 mm

Other Stations                Min                  Max
King's Park                  14.5 C               18.3 C
Wong Chuk Hang               13.7 C               18.5 C
Ta Kwu Ling                  11.2 C               19.1 C
Lau Fau Shan                 11.4 C               18.2 C
Tai Po                       12.5 C               17.4 C
Sha Tin                      14.5 C               17.8 C
Tuen Mun                     12.9 C               18.7 C
Tseung Kwan O                14.5 C               18.0 C
Sai Kung                     15.3 C               17.7 C
Cheung Chau                  13.4 C               18.9 C
Chek Lap Kok                 14.4 C               19.2 C
Tsing Yi                     15.2 C               18.8 C
Shek Kong                    12.7 C               18.9 C
Tsuen Wan Ho Koon            12.4 C               17.9 C
Tsuen Wan Shing Mun Valley   13.6 C               17.9 C
Hong Kong Park               15.5 C               18.3 C
Shau Kei Wan                 14.8 C               17.5 C
Kowloon City                 14.5 C               19.1 C
Happy Valley                 15.4 C               18.6 C
Wong Tai Sin                 15.4 C               18.9 C
Stanley                      15.2 C               17.4 C
Kwun Tong                    14.6 C               17.5 C
Kai Tak Runway Park          15.6 C               18.1 C
Yuen Long Park               12.2 C               18.8 C
Tai Mei Tuk               14.0 C               19.2 C

Duration of sunshine (King's Park):              2.0 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.
 

Yesterday's (18 Jan 2019) average ambient gamma radiation
dose rate taken outdoors in Hong Kong ranged from 0.09 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                           0.09
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                           0.13
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 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 18 Jan
Last revision date: <19 Jan 2019> 

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