Hurricane Elena was an unpredictable and damaging Damaging tropical cyclone that affected Influence eastern and central portions of the United States Gulf Coast in late August and early September 1985 .

The hurricane 's unpredictable shifts in direction created Creating what was considered Deciding the largest peacetime evacuation in the nation 's history .

Treating the plan as a blueprint was rejected Agree_or_refuse_to_act , because this was contrary to the tradition of Prussian war planning established by Helmuth von Moltke the Elder , in which military operations were considered to be inherently unpredictable .

English writer Tim de Lisle said Communication the tournament `` had been fun '' , because `` it had been unpredictable . ''

In the 1790s , the Rhine was wild , unpredictable , and difficult to cross Motion_directional , in some places more than four or more times wider than it is in the twenty-first century , even under non-flood conditions .

Gracie was a storm Catastrophe that was very difficult to forecast , with its movement unpredictable .

In the 1790s , the Rhine was wild , unpredictable , and difficult to cross Motion_directional .