An extreme contrast in weather will be found across KELOLAND today as a strong early fall system tracks through the plains.
****New at 9am****
Power outages are being reported in the Spearfish area and other areas of the Black Hills. The weight of the heavy snow and wind will lead to more outages through the day. 12+" already in Deadwood...with 6-10" common through the Black Hills. Winds increasing the next few hours.
Blizzard warnings and winter storm warnings are in effect for the Black Hills region. The blizzard warning does include Rapid City, as winds will gust from the north up to 70 miles per hour with heavy snow. We still believe the heaviest snowfall accumulation will occur in the northern Black Hills through the next 24 to 36 hours. Amount over 2 feet are LIKELY.
The southeast will be experiencing a much different scenario. Much of the southeast is under a slight risk of severe weather, with a moderate risk of severe weather in NW IA, mainly southeast of a Worthington to Sioux City line.
We expect a line of supercell thunderstorms to develop along the east of the surface low track during this time frame. Storms will be quickly moving north-northeast once they develop. Severe weather threats include including damaging winds, hail, and the threat of tornadoes. The highest potential for tornadoes would be along and southeast of a Yankton to Worthington line after 3 p.m. today. Viewers in these areas need to pay close attention to the weather forecast and be prepared for quickly changing weather conditions.
Heavy rain is also a component to the storm system today and tomorrow in central and northeastern KELOLAND. It still appears that a rain snow mix will develop as far east as the Missouri River Valley through tomorrow morning. Here's another look at Futurescan through the next 24-36 hours.
By Saturday morning, much cooler weather will filter in throughout the remainder of KELOLAND tomorrow. Areas of rain, chilly northwest winds, and clouds will continue through the day on Saturday. Leftover rain and snow showers will linger into Sunday morning.