Winter-weary residents in the Great Plains are bracing for yet another blow this week, compliments of a system that spent Sunday pounding those in and around Denver with high winds and heavy snow.

The Colorado capital had already gotten over 8 inches of snow by 5:30 p.m. MT (7:30 p.m. ET). The snow socked the city's main airport, where more than 200 of 1,500 flights had been canceled and other travelers faced average delays of more than 4 hours on Sunday night, according to the Federal Aviation Administration.

Even more snow had fallen in other places, including 19 inches in Jefferson, about 70 miles southwest of Denver.

By Sunday night, the worst was over for much of Colorado, though not for points east, which are expected to be hammered to start the workweek.

That includes several Plains states, which are already reeling from a dizzying few days of harsh winter weather.

Last Thursday, for instance, a storm dumped up to 22 inches of snow on parts of Kansas.

Two days later, Teresa Moore said her street in Kansas City, Kansas, still hadn't been plowed, making it impossible for her to take her husband to his doctor's appointments or visit her son at the hospital.

"If we have an emergency or a fire, the rescue can't come down here. So what are we to do," Moore told CNN affiliate KCTV. "... It just doesn't make any sense."

She got some relief when plow trucks finally hit the roads around her home later Saturday, but it won't last long. That city is expecting 9 to 15 inches of snow Monday night into Tuesday.

Forecasters have upped their predictions for the amount of snow expected in northwest Oklahoma to 8 to 10 inches, with 15 inches in spots. This may be a shock to some, given that temperatures in places reached the mid-60s on Sunday.

"May see 4-6 foot drifts!" wrote National Weather Service meteorologist Rick Smith on Twitter. "Traveling is beyond discouraged!"

Such forecasts raised alarms throughout the Plains, leading to crowded stores as residents prepared for the storm.

Amanda Roberts, an entrepreneur and blogger in Warrensburg, Missouri, was one of them. Writing on Twitter, she said she made out well in her preparations.

"The snow has everyone stocking up on groceries," she said. "Fresh produce is basically gone but i got the last gallon of chocolate milk. I call it a win."

Record-setting February

Kansas City International Airport set a February 21 record of 9 inches of snow, 4 more inches than the amount that fell the same date in 2010. Monday might bring 6 to 10 more inches, forecasters said.

Kansas City is approaching its February snowfall record of 20.7 inches, set in 1960.

The state of Kansas is also still digging out in many places.

Wichita saw its second-highest storm snowfall total on record last week with 14.2 inches over two days, the National Weather Service said.

The town of Russell in the state's middle lay under a 22-inch layer of white by the time the storm roared by.