risk outside weather outdoors dangerous nature travel rural threatening scenery threat sky usa united states tornado storm danger landscape scenic clouds natural american scene day ominous us handheld rural scene wide shot 10 seconds or greater landscapes nobody scenics travel destinations north america stormy threats travel destination south dakota north american june real time united states of america meteorology storms 2014 hand held hand-held meteorological no one no-one real-time realtime rural scenes scenes stormchaser storm clouds stormchasing