15. Non frontal depressions

Over the Iberian peninsular during the summer.

In the lee of the Alps over Northern Italy in winter.

In association with a marked trough of low pressure over the USA.

On the trailing side edge of a warm sector mid latitude depression.

Form close to one side of the equator and while moving slowly in a westerly direction, cross over to the other hemisphere.

Move in a westerly direction before recurving towards the equator.

Move in an easterly direction before recurving towards the farthest pole.

Do not form within 5o of the equator.

Typhoons are found in the South China in January.

Cyclons, occur in the Bay of Bengal in winter.

Hurricanes, in the South Atlantic sometimes affect the east cost of Brazil.

Hurricanes affect the south east of the USA in late summer.

Surface divergence and upper level convergence causing widespread descent of air in the depression.

Surface convergence and upper level divergence causing widespread descent of air in the depression.

Surface convergence and upper level divergence causing widespread ascent of air in the depression.

It is the name given to a line of thunderstorms that lie along the ITCZ but some 200 miles to the south.

Are always given a male first name beginning with “A” for the first of the season and thereafter named in alphabetical order of occurrence.

Have internal wind speeds of 10-20 knots rotating cyclonally round a subsiding clear core known as the eye.

Usually have the most severe weather in the quadrant to the right of the track in a Hurricane.

Regenerae after crossing the coast from sea to land.