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June 13, 2018 03:06 PM

Storm Center Update Wednesday PM - June 13

Afternoon showers and thunderstorms have been marching their way east mainly along and south of I-90 with a few isolated thundershowers north of highway 14. We’ll likely continue to see these last through the evening but the overnight hours are looking clear. Overnight temperatures will dip into the upper 50s to low 60s.

Southeast KELOLAND could see thunderstorms redevelop tomorrow morning but as those move east, they will take the clouds so skies should be mostly sunny for the rest of the day. With a warm air mass moving in, highs will be in the upper 80s to 90s. Western and central SD could reach the middle to upper 90s. Southerly winds could be a bit breezy with gusts over 30 mph.


Friday looks hot. With a partly cloudy sky, highs will be in the 80s to 90s again.


The Father’s Day weekend looks warm – and in some places – wet. Saturday’s highs will still be in the 80s to 90s, and that could lead to some thunderstorms Saturday afternoon and evening in western and northern South Dakota. The chances for thunder in Sioux Falls and SE KELOLAND look fairly minimal and later in the day if models verify. On Sunday, we’ll have a lingering chance of rain across the region. We could see some areas of heavy rainfall, with early projections putting the heaviest rain in northern and western South Dakota.

The rainfall chances will continue into Monday, as cooler air drops temperatures back into the 70s for most of the area. Then skies should be clear on Tuesday, with temperatures near- or below-normal in the 70s.

Forecast models still suggest gradual warming, leading temperatures above-normal values for the second half of next week.

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