How did Charlie react to the news of the hurricane that threatened to eviscerate Leechfield?

When Charlie heard of the hurricane set to hit Leechfied, at first she was nonplussed, refusing to leave her home when everyone else, including Pete, evacuated. Finally, Charlie called the National Guard and asked for help moving her mother. When Charlie was driving the car away from the storm, she began singing "Mack the Knife" under her breath while driving through the pouring rain, signaling her descent into madness.