Storm Center Update Thursday PM: August 11


A lot of rain fell in eastern KELOLAND last night and early this morning. We expect some more areas of heavy rain later today and tonight, especially in SE KELOLAND, where over an inch is possible. Due to expected rainfall, a Flash Flood Watch is in effect for NW Iowa and SW Minnesota.

Overnight, the front will pass through KELOLAND and take the rainfall with it. With the wind switch to the northwest, skies will clear from west to east with overnight lows in the mid 60s.

Friday will be a sunny, cooler, and less humid day. Highs will be in the low to mid 80s. One exception will be Rapid City and the Hills area, which will have a weak front in the neighborhood that may be sufficient to spark a thunderstorm, though severe weather is unlikely.

Dry air will come in from the north which will keep the area cool for the weekend. We’re looking for near-normal highs in the low to mid 80s across KELOLAND. Western South Dakota will be in the upper 80s on Sunday, the leading edge of warmer weather that will come back across KELOLAND from the west early next week.

In fact, we expect warmer than normal temperatures all of next week, and probably into the following weekend as well. Highs will be in the upper 80s East River to the Low 90s West River. Rainfall chances next week will be sparse, with limited moisture available even though there will be a series of weak fronts passing through.

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