Roberta's House is located in Castle Point, Missouri.
The Westward-bound survivor group travelled to Castle Point to seek shelter from the Z-nado. They encountered Jane and Rick at Roberta's house. Rick was wounded and Jane said a firefighter told them to take shelter there.
When the tornado came into Castle Point, the heroes took shelter in the storm cellar, except for Roberta. She stayed in the living room and during the storm, she was protected by a figure garbed in fire fighter protective gear.
When the storm ended, the house had been destroyed except for the basement. There was no sign of the mysterious fire fighter.