Colorado and Wyoming snowstorms? You read that right. Snowstorms in May.

A strong spring storm dropped more than a foot of wet snow in parts of Colorado and Wyoming on Mother's day, leading to accidents and traffic disturbances and it might not be over yet as temperatures dipped even more overnight, the Associated Press reports.

A winter storm warning for northern Colorado and parts of Wyoming were issued by the National Weather Service on Sunday and Monday. In addition to snow, meteorologists said powerful thunderstorms and tornadoes could also be a factor in Nebraska and Iowa on Sunday. There was also a report of a tornado in southern Nebraska, but it did not cause significant damage. The powerful weather was forecasted to continue into Sunday night.

Due to chilly temperatures and heavy snow, there were icy conditions which caused several parts of Interstate 70 to close on Sunday. There were multiple reports of accidents along the mountain, which made skiers and snowboarders angry as they were hoping to get some fun in before the temperatures pick up. Several parts of Interstate 25 were also closed due to accidents on Sunday.

The snow totals varied around the area and were expected to reach up to 15 inches in some parts at higher elevations while 4 to 9 inches were expected in lower elevations.

"May snow certainly isn't unheard of here in Colorado, even down in the Denver metro area," David Barjenbruch, a weather service meteorologist in Boulder told AP. "If we see the total accumulations that we are anticipating from this storm, we are certainly going to see a top 10 May snow event for the Denver metro area."

He said a foot of snow had fallen northwest of Denver on Sunday morning which caused a sloppy commute on Monday.

In preparation, crews at Denver International Airport treated runways so the ice wouldn't be as bad. There were some delays reported.

The snow was a result of a low pressure system that moved east and collided with
a cold air mass from the north. The weather is expected to get better and warmer by Tuesday.