When observing a rapid rise in barometric pressure，you may expect（）.

Weather forecast messages are usually（）.

Of the following，（）is not a wind.

The dense black cumulonimbus clouds surrounding the eye of a hurricane are called（）.

In Beaufort Scale，the wind force 7 with speed of 28-33 knots is defined as（）.

It is predicted that heavy rains are（）to flood the harbor and its vicinity in a few days.

Widely spaced isobars on a weather map indicate（）.

Mechanical lifting of air by the upslope slant of the terrain is called（）.

What benefit is a weather bulletin to a mariner（）.

Weather information is available from（）.