An advisory is issued when special weather conditions are less serious than a warning. They are for events that may cause significant inconvenience, and if caution is not exercised, it could lead to situations that may threaten life and/or property.
For information on specific weather terms like flash flood watch, snow advisory, winter storm warning, and more, visit the National Weather Service Weather Forecast Office
A watch is used when the risk of
a hazardous weather or hydrologic event has increased significantly,
but its occurrence, location, and/or timing is still uncertain. It is
intended to provide enough lead time so that those who need to set their
plans in motion can do so.