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HKO Computer Forecast Weather Map

Surface

Weather
Temperature
Mean Sea Level Pressure
Relative Humidity & Streamline
Wind Speed & Wind Direction

 

850 hPa

Approx. altitude: 1500m
Vorticity & Streamline
Wind Speed & Wind Direction

 

700 hPa

Approx. altitude: 4500m
Relative Humidity & Streamline
Wind Speed & Wind Direction

 

500 hPa

Approx. altitude: 5600m
Geopotential Height
Wind Speed & Wind Direction

 

200 hPa

Approx. altitude: 12000m
Jet Stream & Streamline
Wind Speed & Wind Direction

 

 

These prognostic charts start updating at 03 HKT, 09 HKT, 15 HKT, 21 HKT everyday.

For background information on forecast weather map, please click here.

The computer forecast weather maps are generated by the Observatory's computer model directly without manual adjustment and the forecast weather conditions described in the products may be different from that in the weather forecasts issued by the Observatory. For a full assessment of the weather situation, the public should refer to the official forecasts issued by the Observatory and/or the respective local meteorological authorities.

Please refer to the following forecasts/bulletins by relevant meteorological authorities -

Hong Kong:
http://www.weather.gov.hk/contente.htm

For other Asian cities:
http://www.hko.gov.hk/wxinfo/worldwx/asia.htm

For other world cities:
http://worldweather.wmo.int
Last revision date: <21 Dec 2012>