After becoming a tropical storm, Gilbert underwent a period of significant strengthening.

An eye feature also appeared on infrared satellite but was not associated with significant strengthening.

Despite warm waters, persistent wind shear prevented significant strengthening.

A surface trough over the central and eastern Gulf of Mexico prevented significant strengthening.

Operationally, it was considered a tropical depression, and significant strengthening was not expected.

It was initially located in an area of wind shear, which prevented significant strengthening.

Any significant strengthening of an elected civilian government threatens the country's two pre-eminent institutions, the military and the bureaucracy.

In this context, we are calling for a significant strengthening of the strategy of reducing exposure to risks.

Recent years have seen a significant strengthening of Russia's position in the region.

If that is done I believe that we shall see a significant strengthening of the presence of these enterprises in the economy.