In the Southern Hemisphere winds in a low pressure system rotate in a（）.

Two well-developed high pressure areas may be separated by a（）.

Which type of precipitation is a product of the violent convection found in thunderstorms（）.

In the Northern Hemisphere a wind is said to veer when the wind（）.

In the Northern Hemisphere，when the wind at your location is northerly，the low pressure center causing the wind is located to your（）.

If you observe the point of cloud convergence shifting to the right and the “bar”of the storm appears to move along the horizon（）.

Your facsimile prognostic chart indicates that you will cross the cold front of a low pressure system in about 24 hours.You should（）.

What is the first visible indication of the presence of a tropical cyclone or hurricane（）.

In the Northern Hemisphere，the right half of the storm is known as the dangerous semicircle because（）.

MIST is caused by（）.