UPDATE: System May Be Shifting North
Our latest model runs are suggesting that this winter storm system could be shifting further north. That means Sioux Falls could get more snow and an increased likelihood of blizzard conditions in the Sioux Falls area tomorrow into tomorrow night. As of right now, I am forecasting a range of 2 to 5 inches across the Sioux Falls metro area, however, if the midday model run remains consistent with our latest run and continues to suggest that this storm system will track further north, I will most likely adjust that snow forecast range upward by several inches.
Stay tuned for updates… I should have new information by around noon or shortly after.
Previous Update Below
A powerful winter storm system is winding up and getting ready to move into our area late tonight and will bring heavy snow and strong wind gusts to the Tri-State region through Tuesday night and into early Wednesday.
A Blizzard Warning is in effect from 3 AM tomorrow through 4 AM Wednesday for Union County, SD and parts of northwestern Iowa including the Okoboji area, Orange City, Sioux Center, Sioux City, and Elk Point. A Blizzard Watch is in effect from late tonight through Tuesday night for extreme southeastern South Dakota, a large portion of northern and western Iowa, southern Minnesota, and eastern Nebraska. South Sioux Falls, Harrisburg and Tea (Lincoln County) are included in the Blizzard Watch. I 90 from the Minnesota line east across Minnesota is included and I 29 from Sioux Falls south past Omaha is also included in the Blizzard Watch.
Snow will develop from southwest to northeast late tonight and continue through much of the day tomorrow. Snowfall accumulation will range from between 2 to 5 inches across the Sioux Falls Metro area to over 12 inches southeast of Sioux City and Spencer, Iowa. Strong north wind gusts from 25 to 35 mph will create blowing snow through much of the day tomorrow and into tomorrow night. Blowing snow will reduce visibility to near zero at times making travel nearly impossible at times.
We are going to be keeping a very close watch on this developing storm. Stay with us for the very latest updates.