Warning signals

AMBER RAINSTORM SIGNAL
Heavy rain has fallen or is expected to fall generally over Hong Kong, exceeding 30 millimetres in an hour, and is likely to continue.
ACTION
Members of the public should take necessary precautions to reduce their exposure to risk posed by heavy rain, such as flooding.
Parents, students, school authorities and school-bus drivers should listen to radio or television announcements on the weather, road and traffic conditions.
Candidates for public examinations should attend the examination as normal, but should listen to radio or watch television in case the weather deteriorates suddenly.
Farmers and fish pond owners, particularly those in low lying or flood frequented areas, should take the necessary precautions to minimise losses, which include checking and clearing the drainage system within and around the farm/fish ponds to ensure that all the drains are not blocked. Where possible, fish pond operators should reduce the water level of ponds which are likely to be flooded.

RED RAINSTORM SIGNAL
Heavy rain has fallen or is expected to fall generally over Hong Kong, exceeding 50 millimetres in an hour, and is likely to continue.
ACTION
Employees working outdoors in areas exposed to rain should suspend outdoor duties if weather conditions in those areas so warrant.
People who have to travel should carefully consider weather and road conditions.
If the RED signal is issued before working hours, employees should report for duty as usual, provided that transport services are available. Supervisors are encouraged to adopt a flexible attitude in case their staff have genuine difficulties in arriving at work on time.
If the RED signal is issued during office hours, employees working indoors should remain on duty as usual unless it is dangerous to do so. Employees in areas where transport services are about to be suspended can be exceptionally released at the discretion of the supervisor. In exercising their discretion, supervisors should take into account the weather and road conditions.

BLACK RAINSTORM SIGNAL
Very heavy rain has fallen or is expected to fall generally over Hong Kong, exceeding 70 millimetres in an hour, and is likely to continue.
ACTION
Stay indoors or take shelter in a safe place until the heavy rain has passed.
Employees working outdoors in exposed areas should stop work and take shelter.
People having no safe place to go may take temporary refuge in any of the special temporary shelters opened by the Home Affairs Department.
Employers are advised not to require their employees to go to work unless prior agreement on work arrangements during rainstorms has been made.
People who are already at work should stay where they are unless it is dangerous to do so.

SPECIAL ACTIONS TO BE TAKEN FOR RED/BLACK SIGNAL
Students should stay home or, if already at school, should remain there until the end of school hours and conditions are safe for them to return home.
If the RED/BLACK signal is issued when some students have set out for school -
School-bound students should normally proceed to school unless the road or traffic conditions ahead are not safe.
School-bus drivers should listen to radio broadcasts on the latest development of the rainstorm and ensure that students are taken to a safe place, normally the school, unless road or traffic conditions ahead warrant otherwise.
Schools should arrange to be open and appropriately staffed to look after any students arriving until it is safe for them to return home.
Candidates for public examinations should listen to radio or watch television for an announcement to be made by the Hong Kong Examinations Authority.
Drivers should beware that there are likely to be serious road flooding and traffic congestion.
People should avoid going near easily flooded watercourses or passing through flooded areas. People whose home may be seriously flooded should consider evacuating their home until the rain has eased and flood water subsided.