SIOUX FALLS, S.D. (AP) -- Blizzards rolled into parts of Wyoming and South Dakota on Friday, bringing the snow-savvy states to an unseasonably early winter standstill and forcing a tourist town to cancel its annual Octoberfest’s polka-dancing bar crawl.

The storm dumped 33 inches of snow in a part of South Dakota’s scenic Black Hills near Lead, "and it’s still coming down," National Weather Service meteorologist Eric Helgeson said Friday afternoon.

Wind gusts reached as high as 68 miles per hour just outside the weather service office in downtown Rapid City, where 8 inches of snow had accumulated, Helgeson said.

Snow-slicked road

In Nebraska, snow was being blamed for the deaths of three people who were killed in a traffic accident on snow-slicked U.S. 20 on Friday morning. Later in the day, thunderstorms moved into the state, bringing strong winds, including a possible tornado that destroyed multiple homes.

The system was threatening to push strong thunderstorms as far east as Wisconsin. And forecasters said the cold front would eventually combine with others to make for a wild, and probably very wet, weekend for much of the central U.S. and Southeast.

Julie Lee said she and fellow members of her White Rose Band were accustomed to snow, just "not for the fourth of October." They had barely unloaded their instruments in South Dakota’s Old West casino town of Deadwood before the wet, heavy snow started falling and closed part of Interstate 90, the area’s only interstate.

"Our car is like an igloo," said Lee, who sings and plays the clarinet and saxophone for her North Dakota-based polka band. "I’m glad we got everything out."

The weather, which even forecasters said was rare, prompted Deadwood officials to postpone their annual Octoberfest, including Friday night’s dancing-and-singing pub crawl and Saturday’s Wiener Dog Races and Beer Barrel Games. But Lee said she and her accordion-playing husband, who had planned to set up in a casino bar, would entertain stranded guests because "you can only gamble for so long."

Survival kits

Officials were warning drivers to stay off the roads in the Black Hills and in eastern Wyoming, where reports of 5 to 10 inches of snow were common. Forecasters urged travelers to carry survival kits and to stay in their vehicles if they get stranded.

"I’ve lived in Wyoming my whole life and I’ve never seen it like this this early," Patricia Whitman, shift manager at the Flying J truck stop in Gillette, said in a telephone interview. She said her truck stop’s parking lot was full of travelers waiting out the storm.