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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 20/Mar/2018

At 7 p.m. at the Hong Kong Observatory the air temperature was 20 degrees Celsius and the relative humidity 62 per cent.

The air temperatures at other places were:

King's Park 19 degrees;
Wong Chuk Hang 20 degrees;
Ta Kwu Ling 19 degrees;
Lau Fau Shan 19 degrees;
Tai Po 19 degrees;
Sha Tin 19 degrees;
Tuen Mun 19 degrees;
Tseung Kwan O 19 degrees;
Sai Kung 19 degrees;
Cheung Chau 19 degrees;
Chek Lap Kok 20 degrees;
Tsing Yi 20 degrees;
Shek Kong 20 degrees;
Tsuen Wan Ho Koon 18 degrees;
Tsuen Wan Shing Mun Valley 19 degrees;
Hong Kong Park 20 degrees;
Shau Kei Wan 19 degrees;
Kowloon City 19 degrees;
Happy Valley 20 degrees;
Wong Tai Sin 19 degrees;
Stanley 20 degrees;
Kwun Tong 19 degrees;
Sham Shui Po 20 degrees;
Kai Tak Runway Park 20 degrees;
Yuen Long Park 19 degrees;
Tai Mei Tuk 18 degrees.


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


Climatological Information for 20 Mar


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 18:45 HKT 20/Mar/2018

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

A dry northeast monsoon is bringing generally fine weather to Guangdong.

Weather forecast for tonight and tomorrow

Fine and dry. It will become cool appreciably overnight. The minimum temperature will be about 15 degrees in the urban areas tomorrow morning, and a few degrees lower in the New Territories. The maximum temperature will be around 23 degrees during the day. Moderate to fresh northerly winds, occasionally strong offshore and on high ground at first.

Outlook : Fine and dry with cool morning in the following couple of days. Temperature difference between day and night will be relatively large.


(The above forecast period is valid up to 23:59 HKT tomorrow, 21/03/2018; 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 20/Mar/2018

N0 WARNING.

GENERAL SITUATION AT 192100 UTC:
COLD FRONT 18N 108E 18N 110E 19N 112E 24N 119E S 10KT.

MARINE FORECAST FOR 24 HOURS FROM 200100 UTC:

HONG KONG= N 6-7. ISOL SHOWERS. SEA 3-4 M. SWELL N UP TO 2 M. TEMP 24-14 C. =
KWANGTUNG= N 6-7. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. DOWN TO 1000 M IN MIST PATCHES AT FIRST. SEA 3-4 M. SWELL N UP TO 2 M. =
TAIWAN STRAIT= N 6-7. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. DOWN TO 1000 M IN MIST PATCHES. SEA 3-4 M. SWELL N 2 M. =
BASHI= S 5, BEC NW 6-7. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 2 M, BEC 3-4 M. SWELL N UP TO 2 M. =
PRATAS= N 6-7, S 5 AT FIRST. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 2-4 M. SWELL N UP TO 2 M. =
BALINTANG= S 5, BEC NW 6-7. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 2 M, BEC 3-4 M. SWELL N UP TO 2 M. =
SCARBOROUGH= S 4-5, BEC N 6-7. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS LATER. SEA 2 M, BEC 3-4 M. SWELL N UP TO 2 M. =
PARACEL= N 6-7. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 3-4 M. SWELL N UP TO 2 M. =
TONKIN= N 6-7. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 3-4 M. SWELL N UP TO 2 M. =
DANANG= N 6-7. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 3-4 M. SWELL N UP TO 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 20/Mar/2018

Weather information for south China coastal waters issued by the Hong Kong Observatory at 7:30 p.m. on 20 March 2018

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:
North force 5 to 6, force 7 at first.
Moderate to rough seas.

Nan'ao and Shanwei:
North to northeast force 5 to 6, force 7 at first.
Moderate to rough seas.

South of Hong Kong and Shangchuan Dao:
North force 5 to 6, force 7 at first.
Moderate to rough seas.

Outlook for the next 48 hours
North to northeasterly winds of force 5 to 6, becoming easterly winds of force 6 later.

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

Waglan Island Wind north force 5
  Visibility 48 Kilometres

Shantou Wind east-southeast force 2
  Visibility 30 Kilometres

Dongsha Wind north-northeast force 4
  Visibility 9 Kilometres

Huangmaozhou Wind north force 4

Macau Wind north force 3
  Visibility 28 Kilometres

Xisha Wind north-northeast force 1
  Visibility 27 Kilometres


WEATHER FORECAST FOR LOCAL AVIATION
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Weather Forecast for Local Aviation

Bulletin issued at 17:30 HKT 20/MAR/2018
(Next update at 01:30 HKT 21/MAR/2018)
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 SOUTH
     CHINA COASTAL AREAS.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1800 TO 0400 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  360/15, OCNL 20
       OFFSHORE:  360/20-25, OCNL 30                   21-15
   B.   2000 FT:  360/20-25, OCNL 30                   12
   C.   5000 FT:  020/20                               12
   D.  10000 FT:  350/25                               6
   E.  18000 FT:  290/40                               MS10
   F.  24000 FT:  280/70                               MS19
   G.  30000 FT:  280/90                               MS30
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      FINE.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 4000 FT.
   K. VISIBILITY    : 10 KM.
   L. 0 DEG. C LEVEL: 13000 FT      10 DEG. C LEVEL(S) : 7600 FT
   M. TURBULENCE    : MOD TO SEV.
   N. SEA STATE     : 2.5-3.5 M     SEA TEMPERATURE    : 19 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE TO FRESH NORTHERLY WINDS, OCCASIONALLY
     STRONG OFFSHORE AND ON HIGH GROUND AT FIRST.
     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 12:37 HKT on 20 Mar 18

VHHK SIGMET 1 VALID 200040/200440 VHHH- VHHK HONG KONG FIR EMBD TS FCST WI N2100 E11730 - N1948 E11630 - N1800 E11254 - N1930 E11130 - N1948 E11130 - N2130 E11730 - N2100 E11730 TOP FL380 MOV ENE 20KT NC= VHHK SIGMET 2 VALID 200440/200840 VHHH- VHHK HONG KONG FIR EMBD TS FCST WI N2130 E11730 - N1706 E11336 - N1842 E11212 - N2324 E11730 - N2130 E11730 TOP FL350 MOV E 20KT WKN=

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 Mar 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 20/Mar/2018
HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     25.6 C
Minimum Air Temperature                     20.7 C
Grass Minimum Temperature                   20.5 C
Relative Humidity                        75 - 93 Percent
Rainfall                                      Trace 
Total rainfall since 1st January            89.4 mm
Against an average of                      118.1 mm

Other Stations                Min                  Max
King's Park                  20.2 C               25.0 C
Wong Chuk Hang               20.9 C               25.5 C
Ta Kwu Ling                  20.1 C               25.5 C
Lau Fau Shan                 19.8 C               27.1 C
Tai Po                       19.7 C               24.4 C
Sha Tin                      20.2 C               26.0 C
Tuen Mun                     20.9 C               26.2 C
Tseung Kwan O                19.8 C               25.0 C
Sai Kung                     19.9 C               24.1 C
Cheung Chau                  19.8 C               25.4 C
Chek Lap Kok                 21.3 C               27.3 C
Tsing Yi                     21.2 C               26.6 C
Shek Kong                    20.5 C               28.0 C
Tsuen Wan Ho Koon            19.6 C               25.6 C
Tsuen Wan Shing Mun Valley   20.5 C               26.0 C
Hong Kong Park               20.3 C               25.5 C
Shau Kei Wan                 19.3 C               24.6 C
Kowloon City                 20.2 C               25.8 C
Happy Valley                 20.7 C               26.0 C
Wong Tai Sin                 20.4 C               25.8 C
Stanley                      20.0 C               24.7 C
Kwun Tong                    19.9 C               25.4 C
Sham Shui Po                 20.7 C               26.5 C
Kai Tak Runway Park          20.0 C               24.9 C
Yuen Long Park               20.7 C               28.2 C
Tai Mei Tuk               19.7 C               25.7 C

Duration of sunshine (King's Park):              2.5 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 6.
Sea surface temperature (Waglan Island):        19.8 C 

Yesterday's (19 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                               0.10
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 19 Mar
Last revision date: <20 Mar 2018> 

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