UV Index Forecast
UV index forecasts at local solar noon for today and the coming days, based on clear-sky conditions and in the absence of snow.
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UV index forecasts at local solar noon for today and the coming days, based on clear-sky conditions and in the absence of snow.
Weather Terms
Severe Thunderstorm Warning - A severe thunderstorm is indicated by Doppler radar or sighted by skywarn spotters. A severe thunderstorm contains large damaging hail, 1 inch diameter or larger, and/or damaging winds of around 60 mph or greater. These warnings are issued on a county by county basis by the local Weather Forecast Office in Chicago/Romeoville.