The storm is closing in! All tiles are deactivated and unable to be used. Each turn, the storm will close in more and more until there is one tile remaining. The chart below shows the speed of the storm.
Turn 1 - Moving in
Turn 2 - 5x5 Stuck
Turn 3 - Moving in
Turn 4 - 3x3 Stuck
Turn 5 - Moving in
Turn 6 - Single tile