This is hard to answer, if it is just a storm the following answers will apply but if it is a tornando, everything could be wiped out.
Will I be likely to lose electricity if this emergency happens?
Yes the chances are high (although we very seldom lose power) We have plenty of flashlights all over the house for that
Will I have running water?
The water should stay on but we do have several 5 gal jugs filled just in case
Will I be able to purchase more food and supplies or will I have to rely on what I have already?
Maybe not, when a storm is predicted our store shelves start to clear pretty fast
Will I have to evacuate?
Probably not, unless tornado is on the way
Are there any members of my family who will be particularly affected?
Just the animals