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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 01:02 HKT 09/Oct/2016

At 1 a.m. at the Hong Kong Observatory the air temperature was 27 degrees Celsius and the relative humidity 70 per cent.

Please be reminded that:

The Tropical Cyclone Signal No. 1 has been issued.

The air temperatures at other places were:

King's Park 27 degrees;
Wong Chuk Hang 27 degrees;
Ta Kwu Ling 26 degrees;
Lau Fau Shan 26 degrees;
Tai Po 26 degrees;
Sha Tin 27 degrees;
Tuen Mun 27 degrees;
Tseung Kwan O 26 degrees;
Sai Kung 27 degrees;
Cheung Chau 26 degrees;
Chek Lap Kok 28 degrees;
Tsing Yi 27 degrees;
Shek Kong 27 degrees;
Tsuen Wan Ho Koon 25 degrees;
Tsuen Wan Shing Mun Valley 26 degrees;
Hong Kong Park 27 degrees;
Shau Kei Wan 27 degrees;
Kowloon City 26 degrees;
Happy Valley 27 degrees;
Wong Tai Sin 27 degrees;
Stanley 27 degrees;
Kwun Tong 26 degrees;
Sham Shui Po 27 degrees;
Kai Tak Runway Park 27 degrees;
Yuen Long Park 27 degrees.

Here is the information on Tropical Storm Aere:
Location: 21.8 degrees north, 117.2 degrees east; Maximum sustained wind near its centre: 75 km/h.


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


Climatological Information for 9 Oct


Local Weather Forecast
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Local Weather Forecast

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

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UV Index Forecast |  Weather Information for South China Coastal Waters

Bulletin updated at 00:45 HKT 09/Oct/2016

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

The northeast monsoon continued to affect southern China yesterday. Locally, it was mainly cloudy with one or two showers. There were sunny intervals during the day. A replenishment of the northeast monsoon will bring cooler weather to southern China in the next couple of days. Under the combined effect of the northeast monsoon and Tropical Cyclone Aere, it will be windier with a few rain patches over the south China coastal areas in the next couple of days.

Weather forecast for Hong Kong

Mainly cloudy with a few showers. Cooler with a minimum temperature of around 24 degrees. Bright periods during the day. The maximum temperature will be about 28 degrees. Moderate to fresh northerly winds, occasionally strong offshore and on high ground.

Outlook : Still windy with a few rain patches in the following couple of days. Cooler in the morning.


(The above forecast period is valid up to 23:59 HKT today, 09/10/2016; 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 08/Oct/2016

GALE WARNING AREAS: KWANGTUNG, TAIWAN STRAIT AND PRATAS.

GENERAL SITUATION AT 080900 UTC:
FOR DETAILS ON TROPICAL STORM AERE (1619), PLEASE REFER TO THE 3-HRLY SHIPPING WARNINGS.

MARINE FORECAST FOR 24 HOURS FROM 081300 UTC:

HONG KONG= N 4-5, OCNL 6. A FEW SHOWERS AND TS. SEA 2 M. TEMP 24-28 C. =
KWANGTUNG= N TO NE 6-7, 8 IN E. DOWN TO 500 M IN FRQ SQUALLY SHOWERS AND TS IN E. SEA 3-4 M, 6 M IN E. SWELL NE 2-3 M. =
TAIWAN STRAIT= NE 7-8. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA 4-6 M. =
BASHI= S TO SE 5-6. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA 2-3 M. SWELL S TO SW 2 M. =
PRATAS= CYCLONIC 7-8. DOWN TO 500 M IN FRQ SQUALLY SHOWERS AND TS. SEA 4-6 M. SWELL NE 3 M. =
BALINTANG= S TO SE 5-6. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA 2-3 M. SWELL S TO SW 2 M. =
SCARBOROUGH= S TO SW 5-6. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA 2-3 M. SWELL SW 2 M. =
PARACEL= N TO NE 4-5, OCNL 6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 2 M. SWELL NE 2 M. =
TONKIN= NE 4-5. ISOL SHOWERS. SEA UP TO 2 M. =
DANANG= N TO NE 4-5. ISOL SHOWERS AND TS. SEA 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

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

Bulletin issued at 23:30 HKT 08/Oct/2016

Weather information for south China coastal waters issued by the Hong Kong Observatory at 11:30 p.m. on 08 October 2016

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

Weather Situation:
The northeast monsoon is affecting the south China coastal waters gradually.

At 11 p.m., Tropical Storm Aere with maximum sustained winds of about 75 kilometres per hour near its centre was located at 21.8 degrees north, 117.2 degrees east. It is forecast to move east slowly and linger over the northern part of the South China Sea.

Area forecasts for the next 24 hours

Hong Kong Adjacent Waters:
North force 4 to 5, occasionally force 6.
A few showers and thunderstorms.
Moderate to rough seas.

Nan'ao:
Cyclonic force 7 to 8.
Frequent heavy squally showers and thunderstorms.
Rough to very rough seas.

Shanwei:
North to northeast force 7 to 8.
Frequent heavy squally showers and thunderstorms.
Rough to very rough seas.

South of Hong Kong:
North to northeast force 6 to 7.
Scattered squally showers and thunderstorms.
Rough seas.

Shangchuan Dao:
North to northeast force 5 to 6.
Isolated showers and thunderstorms.
Moderate to rough seas.

Outlook for the next 48 hours
Northeasterly winds of force 7 to 8, cyclonic winds of up to force 8 in east. Squally showers and thunderstorms.

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

Waglan Island Wind north force 6
  Visibility 17 Kilometres

Shantou Wind east-northeast force 1
  Visibility 30 Kilometres

Dongsha Wind west force 3
  Visibility 10 Kilometres

Huangmaozhou Wind north force 4

Macau Wind north force 3
  Visibility 21 Kilometres

Xisha Wind north-northwest force 1
  Visibility 30 Kilometres


WEATHER FORECAST FOR LOCAL AVIATION
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Weather Forecast for Local Aviation

Bulletin issued at 01:30 HKT 09/OCT/2016
(Next update at 9:00-9:30 HKT 09/OCT/2016)
I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     STRONG WINDS AND SEV TURB.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     AT 1 A.M., TROPICAL STORM AERE WAS CENTRED NEAR 21.8
     DEGREES NORTH 117.2 DEGREES EAST AND IS FORECAST TO MOVE
     EAST SLOWLY.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 0200 TO 1200 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  360/10-15
       OFFSHORE:  360/15-20, OCNL 25                   26-30
   B.   2000 FT:  360/20-25, OCNL 30                   22
   C.   5000 FT:  020/25-30                            19
   D.  10000 FT:  020/25                               10
   E.  18000 FT:  020/15                               MS2
   F.  24000 FT:  260/10                               MS11
   G.  30000 FT:  240/10                               MS24
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL
   I. WEATHER       : 
      MAINLY CLOUDY WITH A FEW ISOLATED SHOWERS.
      SUNNY INTERVALS DURING THE DAY.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 2500 FT SCT 3500 FT
   K. VISIBILITY    : 9 KM. TEMPO 4000 M IN SHOWERS.
   L. 0 DEG. C LEVEL: 16500 FT      10 DEG. C LEVEL(S) : 10200 FT
   M. TURBULENCE    : MOD TO SEV.
   N. SEA STATE     : 2.0-2.5 M     SEA TEMPERATURE    : 29 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE TO FRESH NORTHERLY WINDS, OCCASIONALLY STRONG
     OFFSHORE AND ON HIGH GROUND. MAINLY CLOUDY WITH A FEW
     SHOWERS.=
===================================================================
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 00:20 HKT on 09 Oct 16

VHHK SIGMET 11 VALID 081620/082100 VHHH- VHHK HONG KONG FIR TC AERE OBS AT 1500Z N2148 E11712 CB TOP FL480 WI 120NM OF CENTRE MOV E 02KT NC FCST 2100Z TC CENTRE N2142 E11724=

Please click here for more about the SIGMET


TROPICAL CYCLONE WARNING Skip to main content
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Tropical Cyclone Warnings

Bulletin issued at 00:45 HKT 09/Oct/2016

Tropical Cyclone Bulletin

Here is the latest Tropical Cyclone Bulletin issued by the Hong Kong Observatory.

The Standby Signal, No. 1 is in force.

At 1 a.m., Tropical Storm Aere was estimated to be about 320 kilometres east of Hong Kong (near 21.8 degrees north 117.2 degrees east) and is forecast to move east slowly and linger over the northern part of the South China Sea.

Last revision date: <09 Oct 2016> 

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Last revision date: <09 Oct 2016> 

TROPICAL CYCLONE WARNING FOR SHIPPING
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Tropical Cyclone Warning for Shipping

Tropical Cyclone Warning |  Track and Positions of Tropical Cyclones
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Severe Weather Information Centre

Bulletin issued at 00:30 HKT 09/Oct/2016


Tropical Cyclone Warning

At 081500 UTC, Tropical Storm Aere (1619) with central pressure 990 hectopascals was centred within 90 nautical miles of two one point eight degrees north (21.8 N) one one seven point two degrees east (117.2 E) and is forecast to move east slowly for the next 24 hours.

Maximum winds near the centre are estimated to be 40 knots.

Radius of over 33 knot winds 30 nautical miles.
Radius of over 2 metre waves 120 nautical miles over northern semicircle, 90 nautical miles elsewhere.

Forecast position and intensity at 091500 UTC
Two one point two degrees north (21.2 N)
One one seven point one degrees east (117.1 E)
Maximum winds 35 knots.

Forecast position and intensity at 101500 UTC
Two zero point two degrees north (20.2 N)
One one five point four degrees east (115.4 E)
Maximum winds 25 knots.

Forecast position and intensity at 111500 UTC
Dissipated over sea.




The Hong Kong Observatory's tropical cyclone warnings for shipping are issued about one and a half hours after the time of observation. They incorporate additional information derived from surface and upper-air data and may therefore be slightly different from the real-time satellite or radar-based positions given in the hourly bulletins for public.

While the forecast positions and track indicate the most likely future path of the tropical cyclone, they may deviate from the actual path taken by the storm.

Tropical Cyclone Track

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 09/Oct/2016
HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     29.9 C
Minimum Air Temperature                     27.0 C
Grass Minimum Temperature                   25.8 C
Relative Humidity                        69 - 76 Percent
Rainfall                                      Trace 
Total rainfall since 1st January          2394.2 mm
Against an average of                     2269.5 mm

Other Stations                Min                  Max
King's Park                  26.5 C               30.1 C
Wong Chuk Hang               26.6 C               29.9 C
Ta Kwu Ling                  26.3 C               29.1 C
Lau Fau Shan                 26.2 C               29.1 C
Tai Po                       26.4 C               28.6 C
Sha Tin                      26.8 C               29.6 C
Tuen Mun                     26.6 C               29.8 C
Tseung Kwan O                26.1 C               31.2 C
Sai Kung                     26.7 C               29.3 C
Cheung Chau                  25.9 C               29.7 C
Chek Lap Kok                 27.5 C               32.3 C
Tsing Yi                     27.2 C               30.3 C
Shek Kong                    25.9 C               31.2 C
Tsuen Wan Ho Koon            25.5 C               28.3 C
Tsuen Wan Shing Mun Valley   26.5 C               31.5 C
Hong Kong Park               27.0 C               30.7 C
Shau Kei Wan                 26.7 C               30.7 C
Kowloon City                 26.4 C               30.0 C
Happy Valley                 27.5 C               31.6 C
Wong Tai Sin                 26.8 C               30.9 C
Stanley                      27.1 C               30.9 C
Kwun Tong                    26.5 C               31.4 C
Sham Shui Po                 26.9 C               30.1 C
Kai Tak Runway Park          27.3 C               31.0 C
Yuen Long Park               26.8 C               31.2 C

Duration of sunshine (King's Park):              2.1 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 7.
 

Yesterday's (08 Oct 2016) average ambient gamma radiation
dose rate taken outdoors in Hong Kong ranged from 0.08 to
0.14 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                               0.09
Yuen Ng Fan                         0.12
Tai Mei Tuk                         0.13
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                        0.14

Note
  1. From readings taken at various locations in Hong Kong during the period 1987-2015, 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 08 Oct
Last revision date: <09 Oct 2016> 

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