Storm Center Update- Monday PM, May 13th


Temperatures have been in the upper 60s to low 70s in eastern KELOLAND, putting us back on track for normal values for mid-May. Temperatures are warmer in western South Dakota with temperatures nearing 80 in Pennington County. Spotty light showers have been occurring in Rapid City with a few spots of lightning in the surrounding areas.

Tonight spotty showers will move through KELOLAND as a warm front moves east. Showers will sweep though Pierre and Sioux Falls, being heaviest east of I-29. Nighttime lows will be in the low 50s, with a very light southerly breeze.

Tomorrow we will have partly cloudy skies. Temperatures will again be warmer than normal, in the mid to upper 70s. Some light showers will be possible in the north, and Rapid City has a slight chance of rain during the morning hours. Winds will be gentle, under 15 mph.

On Wednesday, skies will be mostly sunny with a southeasterly breeze. Highs will be in the mid to upper 70s East River, to the low 80s West River. Temperatures will be even warmer on Thursday, in the upper 70s to low 80s East River. It should be another dry day, with the exception of some early morning showers in Aberdeen and the northeast.

Weather gets more active starting on Friday. Highs will be in the 70s to around 80, but with a front moving up from the south we’ll have the potential for thunderstorms Friday afternoon and night. The potential exists for strong to severe thunderstorms, mainly in south central and southeastern KELOLAND – including Sioux Falls.

The weekend looks very unsettled. Rain and thunderstorms are expected across KELOLAND on Saturday, and we may see rains exceeding an inch in some places. Due to the thick cloud cover we will also see cooler temperatures, with highs in the low to mid 70s East River, and the mid 60s West River.

We expect rains to continue in the form of scattered showers on Sunday. It will be even cooler, with highs in the mid 60s to around 70 degrees.

Monday should be mostly dry, but then another system of rain and cool air comes in Monday night and Tuesday, with below-normal temperatures in the low to mid 60s by midweek. We expect temperatures to be near normal for the second half of next week.

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