Sioux Falls authorities want people with certain weather-related problems to call specific numbers instead of using the 911 service.
People with health, fire, traffic and other emergencies are still encouraged to dial 911, but officials want to reserve that service for the worse challenges.
Wednesday morning, more than 17,000 people remain without power. The goal to restore most of that electricity is midday Thursday, but forthcoming wind and snow is likely to create more power outages throughout Wednesday and into the night.
Xcel energy customers who experience an outage should call (800)895-1999.
Southeastern Electric customers without power can call (800)333-2859.
Midcontinent Communication did have some phone lines down overnight; officials say the majority of that is back in working order.
Thousands of branches and trees are toppling beneath the weight of ice and in the winds. People who need to report downed trees blocking streets should call (605)367-8255. Sioux Falls leaders encourage people who can safely move fallen branches to the boulevard to help; however, they stress people have to put their safety first. That means people should call the city when power lines are nearby, the branch is too large or traffic makes moving the branch dangerous.
Officials encourage caution when traveling and to avoid going out in the weather unless absolutely necessary. They say people should call 511 or visit www.safetravelusa.com.