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HKO Computer Model Forecast Weather Map
Select weather map:
Actual     Forecast:  >12-hr <  24-hr   36-hr   48-hr   60-hr   72-hr    Animation
500hPa (Approx. Altitude:5600m) - Wind Speed & Wind Direction
500hPa 12-hr Upper Air Forecast Weather Map - Wind Speed & Wind Direction
calm
easterly wind of 18 km/h (one barb represents wind speed of 18 km per hour and a half-barb represents 9 km per hour)
westerly wind of 90 km/h (a pennant, or triangular flag, represents wind speed of 90 km per hour)
strong winds (41-62 km/h) and above are plotted in red
 
These prognostic charts start updating at 4 a.m. and 4 p.m. everyday.

The computer model 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 official forecasts/bulletins by relevant meteorological authorities -

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

For other places:
http://worldweather.wmo.int
 2003 | Important notices | Privacy policy Last revision date: <11 Feb 2012>