WATERTOWN, S.D. (KWAT) — The weather is unpredictable, and there’s no guarantee anything will develop, but the National Weather Service has placed northeast South Dakota under an “enhanced risk” of severe storm development Friday night.

National Weather Service forecaster Mike Connolly says that threat will be preceded by a return of hot, humid weather.

And it’s that heat and humidity that could be the trigger point for severe storm development.

Connolly says the main threats will be damaging winds and hail, and a smaller risk of tornado development.