Why is it necessary to wait for an official confirmation when the sky appears clear after a cyclone?

A cyclonic storm die after reaching land and not become more active because they loose contact with the humid moisture that feeds their strength. Their source of energy is evaporation from the warm oceans.

Explanation:

Hope this helps!

satin. 

"very shiny satin may look great in the fabric store or in the sewing room, but once onstage it can look fake and cheap as it reflects the light from the fixtures."

they are often in theme and variations