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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 19:02 HKT 24/Apr/2018

At 7 p.m. at the Hong Kong Observatory the air temperature was 25 degrees Celsius and the relative humidity 90 per cent.

The air temperatures at other places were:

King's Park 24 degrees;
Wong Chuk Hang 24 degrees;
Ta Kwu Ling 25 degrees;
Lau Fau Shan 24 degrees;
Tai Po 24 degrees;
Sha Tin 25 degrees;
Tuen Mun 25 degrees;
Tseung Kwan O 24 degrees;
Sai Kung 25 degrees;
Cheung Chau 23 degrees;
Chek Lap Kok 25 degrees;
Tsing Yi 25 degrees;
Shek Kong 25 degrees;
Tsuen Wan Ho Koon 23 degrees;
Tsuen Wan Shing Mun Valley 24 degrees;
Hong Kong Park 24 degrees;
Shau Kei Wan 24 degrees;
Kowloon City 25 degrees;
Happy Valley 25 degrees;
Wong Tai Sin 25 degrees;
Stanley 24 degrees;
Kwun Tong 25 degrees;
Sham Shui Po 24 degrees;
Kai Tak Runway Park 25 degrees;
Yuen Long Park 26 degrees;
Tai Mei Tuk 24 degrees.

Between 5:45 and 6:45 p.m., the rainfall recorded in various regions were:

Tsuen Wan 0 to 1 mm.


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


Climatological Information for 24 Apr


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 19:15 HKT 24/Apr/2018

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

A band of clouds is covering the coast of Guangdong and the northern part of the South China Sea.

Weather forecast for tonight and tomorrow

Mainly cloudy with one or two showers at first. Temperatures will range between 22 and 26 degrees. Moderate northerly winds, becoming easterlies later tomorrow.

Outlook : Mainly cloudy in the following couple of days. The weather will improve gradually over the weekend and early next week.


(The above forecast period is valid up to 23:59 HKT tomorrow, 25/04/2018; 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 24/Apr/2018

N0 WARNING.

GENERAL SITUATION AT 232100 UTC:
TROUGH 23N 103E 22N 110E 23N 117E 30N 125E SE 5KT.

MARINE FORECAST FOR 24 HOURS FROM 240100 UTC:

HONG KONG= N 5. DOWN TO 2000 M IN ISOL HEAVY SQUALLY SHOWERS AND TS. SEA UP TO 2 M. TEMP 26-21 C. =
KWANGTUNG= N TO NE 5-6, S 4-5 IN E AT FIRST. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 2-3 M. SWELL NE 2 M LATER. =
TAIWAN STRAIT= N TO NE 6-7. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 3-4 M. SWELL N TO NE 2 M, 3 M LATER. =
BASHI= S 5, BEC N TO NE 6-7. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 2 M, BEC 3-4 M. SWELL N TO NE 2 M, 3 M LATER. =
PRATAS= S 4-5, BEC N TO NE UP TO 6. ISOL SHOWERS AND TS. SEA UP TO 3 M. SWELL N TO NE 2 M LATER. =
BALINTANG= S 5, BEC N TO NE 5-6. ISOL SHOWERS AND TS. SEA 2 M, BEC 3 M. SWELL N TO NE 2 M LATER. =
SCARBOROUGH= S 4-5, BEC N TO NE 4-5. ISOL SHOWERS LATER. SEA UP TO 2 M. SWELL N TO NE 2 M LATER. =
PARACEL= S 4-5, BEC N TO NE UP TO 6. ISOL SHOWERS AND TS. SEA UP TO 3 M. SWELL NE 2 M LATER. =
TONKIN= N TO NE 5-6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 2-3 M. SWELL NE UP TO 2 M. =
DANANG= S 5, BEC N TO NE 5. ISOL SHOWERS AND TS. SEA 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 19:30 HKT 24/Apr/2018

Weather information for south China coastal waters issued by the Hong Kong Observatory at 7:30 p.m. on 24 April 2018

Warnings:
Strong winds in Nan'ao, Shanwei, south of Hong Kong and Shangchuan Dao.

Weather Situation:
A trough of low pressure is bringing unsettled weather to the south China coastal waters.

Area forecasts for the next 24 hours

Hong Kong Adjacent Waters:
North to northeast force 5.
Isolated squally showers and thunderstorms.
Moderate seas.

Nan'ao:
North to northeast force 5 to 6, occasionally force 7.
Isolated squally showers and thunderstorms.
Moderate to rough seas.

Shanwei, South of Hong Kong and Shangchuan Dao:
North to northeast force 5 to 6.
Isolated squally showers and thunderstorms.
Moderate to rough seas.

Outlook for the next 48 hours
East to northeasterly winds of force 5 to 6. Isolated showers and thunderstorms.

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

Waglan Island Wind north-northwest force 1
  Visibility 6 Kilometres

Shantou Wind west force 3
  Visibility 30 Kilometres

Huangmaozhou Wind north-northwest force 2

Macau Wind north-northeast force 1
  Visibility 6 Kilometres

Xisha Wind south force 2
  Visibility 25 Kilometres


WEATHER FORECAST FOR LOCAL AVIATION
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Weather Forecast for Local Aviation

Bulletin issued at 17:30 HKT 24/APR/2018
(Next update at 01:30 HKT 25/APR/2018)
I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     ISOL CUNIM/TS AND ASSOCIATED HAZARDS.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     A TROUGH OF LOW PRESSURE IS BRINGING UNSETTLED
     WEATHER TO THE SOUTH CHINA COASTAL AREAS.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1800 TO 0400 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  360/5-10
                  TEMPO VRB/15G25 IN TS
       OFFSHORE:  360/10                               25-22
   B.   2000 FT:  360/10                               20
   C.   5000 FT:  180/10                               17
   D.  10000 FT:  270/10                               9
   E.  18000 FT:  310/20                               MS6
   F.  24000 FT:  310/20                               MS15
   G.  30000 FT:  310/25                               MS31
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      MAINLY CLOUDY WITH A FEW SHOWERS. A FEW
      ISOLATED THUNDERSTORMS.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1000 FT  SCT 3000 FT  BKN 10000 FT.  TEMPO
      FEW CB 800 FT  SCT 1500 FT  BKN 4000 FT.
   K. VISIBILITY    : 7 KM.  TEMPO 3000 M IN SHOWERS.  TEMPO 2000 M IN TS.
   L. 0 DEG. C LEVEL: 15500 FT      10 DEG. C LEVEL(S) : 9600 FT
   M. TURBULENCE    : MOD TO SEV NEAR CUNIM/TS
   N. SEA STATE     : 0.5-1.5 M     SEA TEMPERATURE    : 25 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE NORTHERLY BECOMING EASTERLY WINDS.
     MAINLY CLOUDY.=
===================================================================
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 19:00 HKT on 24 Apr 18

VHHK SIGMET 5 VALID 241100/241500 VHHH- VHHK HONG KONG FIR EMBD TS FCST WI N2030 E11130 - N2124 E11130 - N2218 E11324 - N2118 E11400 - N2030 E11130 TOP FL350 MOV SE 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 Apr 2018> 

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 24/Apr/2018
HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     30.2 C
Minimum Air Temperature                     24.3 C
Grass Minimum Temperature                   22.9 C
Relative Humidity                        64 - 91 Percent
Rainfall                                      Trace 
Total rainfall since 1st January           108.9 mm
Against an average of                      297.0 mm

Other Stations                Min                  Max
King's Park                  23.6 C               30.1 C
Wong Chuk Hang               23.7 C               28.2 C
Ta Kwu Ling                  22.6 C               30.7 C
Lau Fau Shan                 22.7 C               29.6 C
Tai Po                       23.3 C               29.8 C
Sha Tin                      23.6 C               30.7 C
Tuen Mun                     23.8 C               30.2 C
Tseung Kwan O                22.7 C               29.4 C
Sai Kung                     23.6 C               27.3 C
Cheung Chau                  23.0 C               29.5 C
Chek Lap Kok                 24.7 C               30.4 C
Tsing Yi                     23.7 C               29.6 C
Shek Kong                    23.5 C               31.4 C
Tsuen Wan Ho Koon            22.8 C               28.3 C
Tsuen Wan Shing Mun Valley   23.1 C               29.3 C
Hong Kong Park               24.0 C               29.0 C
Shau Kei Wan                 23.1 C               29.3 C
Kowloon City                 23.6 C               30.8 C
Happy Valley                 24.1 C               30.0 C
Wong Tai Sin                 23.6 C               29.4 C
Stanley                      23.3 C               28.1 C
Kwun Tong                    23.5 C               30.4 C
Sham Shui Po                 24.2 C               28.8 C
Kai Tak Runway Park          24.0 C               29.3 C
Yuen Long Park               23.2 C               30.8 C
Tai Mei Tuk               23.3 C               32.0 C

Duration of sunshine (King's Park):              7.1 H
The mean UV index recorded at King's Park yesterday was 4,
the UV intensity was Moderate.
The maximum UV index for yesterday was 8.
Sea surface temperature (Waglan Island):        23.8 C 

Yesterday's (23 Apr 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                             0.08
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                         0.15
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 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 23 Apr
Last revision date: <24 Apr 2018> 

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