> There have been a few calls for volunteers over the last few weeks. I've
> thought about stepping up.
That's a very good thought, and I hope you do it. As the other poster said, please call first and ask what you can bring. Then ask what you should bring for your personal effects, how you can best get there, and what your shelter will be (tent, motel room 15 miles away, somebody's living room with 5 other volunteers). Ask how you'll be fed and if you should bring your own utensils, how you can wash, etc. The goal is to be as self-supporting as possible, so more people can be used to do the work instead of supporting the volunteers.
If the people asking for volunteers know what your skills are and when you're coming, they can better prepare to use you promptly. Having a bunch of people show up one day drains resources as they have to figure out not only what to do with you but how to feed and shelter you. If you show up without the right clothes for the job and the season, they either send you back or spend time and money suiting you up. North Dakota can have killer weather, and they don't want people bringing more victims in. :->