Based on the clue 'a sudden variation in voltage or current', what is the answer?

Based on the clue 'a sudden change of windspeed or direction it also ...', what is the answer? Based on the clue 'a sudden quick thrust to grab a porous marine inve...', what is the answer? Based on the clue 'a sudden rise of emotion as in one of anger in car...', what is the answer? Based on the clue 'a sudden short attack like the great northfield mi...', what is the answer? Based on the clue 'a sudden violent discharge from vesuvius', what is the answer? What is referred to by 'a sudden violent windstorm'? Based on the clue 'a sudden wave of high emotion or excitement', what is the answer? What is referred to by 'a suffragette brownell'?