Sioux Falls was in the news most recently and on these pages for a massive dust storm that swept the city. Storms may be on the way, but perhaps not as vigorous as the ones seen earlier this month!
At 1256PM, CT, Sioux Falls was seeing clear skies and a temperature of 76 degrees. Warm temperatures were finally filtering back into the Upper Midwest after a cooler stretch to finish May. A broad but transient ridge was sliding through the region, but a similarly broad trough was moving into the Pacific Northwest, leading to cyclogenesis and clouds seen in the western Dakotas.
A rippling warm front will pass through the region overnight tonight, developing a few showers and thunderstorms in the area. A warm, muggier day is expected tomorrow, setting the stage for a few afternoon thunderstorms. The system will stall over the High Plains, with another round of wet weather tomorrow night, this time providing a threat of severe weather. The feature will begin to reorganize in the Colorado Plains, and will revitalize the system in the Dakotas. A connective cold front will light up in the evening on Sunday evening, setting a stage for the potential for straight line wind damage. Tonight, tomorrow and Sunday will have a threat of severe weather, with each of the three days featuring stronger weather with more precipitation likely.
Tomorrow – Isolated showers early, thunderstorms late, High 88, Low 64
Sunday – Strong storms possible late after a hot partly cloudy day, High 88, Low 67
TWC: Tomorrow – Sunny along with a few clouds. (Late storms) High 91, Low 62
Sunday -Overcast. A stray shower or thunderstorm is possible. High 86, Low 67
AW: Tomorrow – Partial sunshine; breezy in the morning, then becoming humid (late storms) High 90, Low 62
Sunday – Breezy with some sun returning; a severe afternoon t-storm; storms can bring downpours, large hail, damaging winds, and a tornado High 87, Low 67
NWS: Tomorrow – Mostly sunny (early rain, late storms), High 89, Low 62
Sunday – A slight chance of showers and thunderstorms before 7am, then a slight chance of showers and thunderstorms after 1pm. Mostly cloudy, High 88, Low 66
WB: Tomorrow – Sunny (late storms) High 89, Low 63
Sunday – Mostly cloudy in the morning, then partly sunny with a slight chance of showers and thunderstorms in the afternoon, High 89, Low 68
WN: Tomorrow – Mostly sunny, High 89, Low 62
Sunday – Partly cloudy with light rain showers, High 87, Low 63
FIO: Tomorrow – Windy overnight. High 87, Low 61
Sunday – Overcast throughout the day. High 83, Low 68
The paucity of rain forecasts, despite an SPC outlook with a slight or enhanced risk tells you how isolated storms will be. Hopefully, everyone can get out and enjoy the long holiday weekend!