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 official forecasts/bulletins by relevant
meteorological authorities -
