As we said, millions still in the dark this morning. Widespread power outages up and down the east coast. What can you do to mak sure your pantry has what you need to survive a couple of days of... See More
As we said, millions still in the dark this morning. Widespread power outages up and down the east coast. What can you do to mak sure your pantry has what you need to survive a couple of days of darkness? Claire shipman has that story. Reporter: In the coming days, people will move from storm to supplies. We went over a storm checklist. First, she says, always plan for at least three days. Second, focus on water. You need a gallon a day, per person. Do you have bottled water? No. We've never lost water. To me, it isn't seem like anything important. Reporter: I have the same situation. Our tap works. It's possible that the water sanitation systems might also lose water for a sperd. Reporter: For your family, that's 18 gallons of water. Brr you can fill pots and pans. Just do the math. Just make sure you have a regular can opener. I have. Reporter: Load up on the canned food. At least two cans per person a day. Three days. So, that would be 36 cans. 36 cans for your family. Reporter: Four cans. If you count your seep, you have 25. Nora can count soup because her stove top will work with matches. If you have an outside storm grill, you can cook outside. People could even boil water. Reporter: Other things to keep on-hand, peanut butter, granola bars. Long-life fruit. Our thanks to claire shipman. That's important information over the next coming days.
This transcript has been automatically generated and may not be 100% accurate.