May 21, 2013 10:00 pm Schaumburg Village Trustee Survives Okla. Tornado Frank and Chaz Kozak believe weight of a water heater kept them safe when massive EF-5 tornado passed through. Natalie Martinez reports. Local 2:10 Chicago Forecast: More storms in the forecast 2:22 CHICAGO'S FORECAST: Storms throughout Sunday 2:29 Chicago Forecast: Warm & windy Saturday; strong evening storms 2:13 Latest forecast from the NBC 5 Storm Team 2:23 Friday afternoon forecast: Severe weather potential looms