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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 09:02 HKT 19/Feb/2019

At 9 a.m. at the Hong Kong Observatory the air temperature was 19 degrees Celsius and the relative humidity 96 per cent.
During the past hour the mean UV Index recorded at King's Park was 0.0. The intensity of UV radiation was low.

Please be reminded that:

The Amber Rainstorm Warning Signal was issued at 9:00 a.m.
The Thunderstorm Warning has been issued. It will remain effective until 10:30 a.m. today. Thunderstorms are expected to occur over Hong Kong.

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 18 degrees;
Tai Po 19 degrees;
Sha Tin 19 degrees;
Tuen Mun 20 degrees;
Tseung Kwan O 18 degrees;
Sai Kung 19 degrees;
Cheung Chau 19 degrees;
Chek Lap Kok 21 degrees;
Tsing Yi 20 degrees;
Shek Kong 19 degrees;
Tsuen Wan Ho Koon 19 degrees;
Tsuen Wan Shing Mun Valley 20 degrees;
Hong Kong Park 19 degrees;
Shau Kei Wan 18 degrees;
Kowloon City 19 degrees;
Happy Valley 20 degrees;
Wong Tai Sin 20 degrees;
Stanley 18 degrees;
Kwun Tong 19 degrees;
Sham Shui Po 20 degrees;
Kai Tak Runway Park 19 degrees;
Yuen Long Park 18 degrees;
Tai Mei Tuk 19 degrees.

Between 7:45 and 8:45 a.m., lightning was detected over all regions. The rainfall recorded in various regions were:

Islands District 0 to 42 mm;
Southern District 0 to 27 mm;
Wan Chai 11 to 19 mm;
Central & Western District 2 to 12 mm;
Eastern District 6 to 11 mm;
Sai Kung 0 to 7 mm;
Tai Po 0 to 7 mm;
North District 3 to 6 mm;
Tsuen Wan 0 to 4 mm;
Yuen Long 0 to 4 mm;
Sha Tin 0 to 4 mm;
Kwun Tong 1 to 4 mm;
Kwai Tsing 0 to 3 mm;
Tuen Mun 2 to 3 mm;
Kowloon City 2 to 3 mm;
Sham Shui Po 2 mm;
Wong Tai Sin 1 to 2 mm;
Yau Tsim Mong 1 to 2 mm.

Between midnight and 9 a.m. the minimum temperature was 18.5 degrees Celsius at the Hong Kong Observatory.


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


Climatological Information for 19 Feb


Local Weather Forecast
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Automatic Regional Weather Forecast in Hong Kong & Pearl River Delta Region

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Bulletin updated at 08:45 HKT 19/Feb/2019

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

A trough of low pressure is bringing heavy showers and thunderstorms to the coast of Guangdong.

Weather forecast for today

Mainly cloudy with showers. Showers will be heavy with thunderstorms at first. Showers easing off gradually later with relatively low visibility. The maximum temperature will be around 22 degrees. Moderate east to southeasterly winds.

Outlook : Warm with sunny periods in the next couple of days and there will be coastal fog in the morning and at night.


(The above forecast period is valid up to 23:59 HKT today, 19/02/2019; 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 09:00 HKT 19/Feb/2019

N0 WARNING.

GENERAL SITUATION AT 182100 UTC:
TROUGH 21N 112E 22N 117E QSTNR.

MARINE FORECAST FOR 24 HOURS FROM 190100 UTC:

HONG KONG= E TO SE 4-5. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. DOWN TO 2000 M IN MIST OR RAIN PATCHES LATER. SEA UP TO 2 M. SWELL NE 2 M. TEMP 22-21 C. =
KWANGTUNG= E TO SE 4-5, OCNL 6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. DOWN TO 500 M IN FOG OR RAIN PATCHES LATER. SEA UP TO 3 M. SWELL NE 2 M. =
TAIWAN STRAIT= NE 4-5, OCNL 6. ISOL SHOWERS AND TS. DOWN TO 4000 M IN MIST OR RAIN PATCHES LATER. SEA UP TO 3 M. SWELL NE 2 M. =
BASHI= S TO SE 4-5, OCNL 6. CLD. SEA UP TO 3 M. SWELL NE 2 M. =
PRATAS= S TO SE 4-5, OCNL 6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 3 M. SWELL NE 2 M. =
BALINTANG= S TO SE 4-5, OCNL 6. CLD. SEA UP TO 3 M. SWELL NE 2 M. =
SCARBOROUGH= S TO SE 4-5. FINE. SEA UP TO 2 M. SWELL NE 2 M. =
PARACEL= S 4-5, OCNL 6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 3 M. SWELL NE 2 M. =
TONKIN= S 4-5, OCNL 6. DOWN TO 4000 M IN MIST PATCHES. SEA UP TO 3 M. =
DANANG= S 4-5, OCNL 6. CLD. SEA UP TO 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

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9-day Weather Forecast | UV Index Forecast | Weather Information for Fishermen

Bulletin issued at 09:30 HKT 19/Feb/2019

Weather information for south China coastal waters issued by the Hong Kong Observatory at 9:30 a.m. on 19 February 2019

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

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

Area forecasts for the next 24 hours

Hong Kong Adjacent Waters:
East to southeast force 4 to 5.
Squally showers and thunderstorms, showers will be heavy at times. Visibility relatively low in some areas later.
Moderate seas.

Nan'ao, Shanwei and South of Hong Kong:
East to southeast force 4 to 5, occasionally force 6.
Isolated squally showers and thunderstorms. Fog patches later.
Moderate to rough seas.

Shangchuan Dao:
South to southeast force 4 to 5, occasionally force 6.
Isolated squally showers and thunderstorms. Fog patches later.
Moderate to rough seas.

Outlook for the next 48 hours
South to southeasterly winds of force 4 to 5. Fog patches.

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

Waglan Island Wind north force 4
  Visibility 3300 Metres

Shantou Wind east force 1
  Visibility 5000 Metres in mist

Huangmaozhou Wind east force 6

Macau Wind north force 2
  Visibility 700 Metres in thunderstorms

Xisha Wind south-southeast force 2
  Visibility 19 Kilometres


WEATHER FORECAST FOR LOCAL AVIATION
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Weather Forecast for Local Aviation

Bulletin issued at 09:30 HKT 19/FEB/2019
(Next update at 12:30 HKT 19/FEB/2019)
I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     ISOL CUNIM/TS AND ASSOCIATED HAZARDS. 
     STRONG WINDS AND SEV TURB.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     A TROUGH OF LOW PRESSURE IS BRINGING UNSETTLED
     WEATHER TO THE COASTAL AREAS OF GUANGDONG.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1000 TO 2000 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  100/5-10
                  TEMPO VRB/15G25 IN TS
       OFFSHORE:  100/15-20                            19-24
   B.   2000 FT:  180/15-20, OCNL 25                   19
   C.   5000 FT:  220/20                               15
   D.  10000 FT:  260/30                               5
   E.  18000 FT:  230/40                               MS9
   F.  24000 FT:  240/60                               MS19
   G.  30000 FT:  240/95                               MS30
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL
   I. WEATHER       : 
      MAINLY CLOUDY WITH SHOWERS. SHOWERS WILL BE
      HEAVY AT TIMES AT FIRST. ISOLATED THUNDERSTORMS.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1500 FT  SCT 4500 FT
      TEMPO FEW CB 800 FT  SCT 1200 FT  BKN 6000 FT
   K. VISIBILITY    : 7 KM.  TEMPO 3000 M IN SHOWERS. TEMPO 2000 M IN TS.
   L. 0 DEG. C LEVEL: 12500 FT      10 DEG. C LEVEL(S) : 7800 FT
   M. TURBULENCE    : MOD TO SEV NEAR CUNIM/TS AND NEAR HILLS. MOD OFFSHORE.
   N. SEA STATE     : 2.0-2.5 M     SEA TEMPERATURE    : 19 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE SOUTHEASTERLY WINDS.  MAINLY CLOUDY
     WITH SHOWERS. ISOLATED THUNDERSTORMS.  LOCALISED
     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.

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: <06 Feb 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/Feb/2019
HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     19.3 C
Minimum Air Temperature                     16.8 C
Grass Minimum Temperature                   16.7 C
Relative Humidity                        86 - 96 Percent
Rainfall                                    18.1 mm 
Total rainfall since 1st January            24.9 mm
Against an average of                       60.3 mm

Other Stations                Min                  Max
King's Park                  16.1 C               18.7 C
Wong Chuk Hang               16.4 C               20.0 C
Ta Kwu Ling                  16.7 C               18.2 C
Lau Fau Shan                 16.3 C               19.9 C
Tai Po                       16.4 C               18.2 C
Sha Tin                      16.3 C               19.1 C
Tuen Mun                     17.1 C               19.1 C
Tseung Kwan O                16.2 C               17.7 C
Sai Kung                     16.6 C               19.7 C
Cheung Chau                  16.7 C               18.9 C
Chek Lap Kok                 16.9 C               20.8 C
Tsing Yi                     17.0 C               20.1 C
Shek Kong                    17.1 C               21.5 C
Tsuen Wan Ho Koon            15.9 C               19.5 C
Tsuen Wan Shing Mun Valley   16.4 C               18.3 C
Hong Kong Park               16.7 C               18.6 C
Shau Kei Wan                 16.1 C               18.8 C
Kowloon City                 16.0 C               19.5 C
Happy Valley                 16.9 C               19.9 C
Wong Tai Sin                 16.4 C               19.8 C
Stanley                      16.3 C               18.8 C
Kwun Tong                    15.8 C               18.8 C
Sham Shui Po                 16.8 C               19.2 C
Kai Tak Runway Park          16.7 C               19.7 C
Yuen Long Park               17.0 C               21.9 C
Tai Mei Tuk               16.1 C               17.7 C

Duration of sunshine (King's Park):              0.2 H
The mean UV index recorded at King's Park yesterday was 0.5,
the UV intensity was Low.
The maximum UV index for yesterday was 2.
 

Yesterday's (18 Feb 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 Feb
Last revision date: <19 Feb 2019> 

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