Wild weekend weather: Snow, tornadoes and sinkholes

<p>(Courtesy NWS on Twitter)</p>
<p>Traffic piles up in the snow in La Plata County on Saturday, May 9, 2015.</p>

The Associated Press reports that rising river levels fed by heavy rains have forced the evacuation of the St. Vrain Campground in northern Colorado. Weld County spokeswoman Jennifer Finch says the Frederick-Firestone Fire Protection District issued the mandatory evacuation of all park guests around 11:30 p.m. Friday.

The National Weather Service reported a few landslides along the Saint Vrain in Boulder County and minor flooding in several businesses In Lyons.

The Carbon Valley Emergency Operations Center has been activated to assist with evacuations and monitoring road closures. And electrical power has been knocked out in numerous locations.

Forecasters also issued a winter storm warning for the northern and central Colorado mountains. The National Weather Service says there could be up to 16 inches of snow by Sunday.

Here's how Saturday's wild weather played out on Twitter.

#Snow photo from western La Plata county this am. Any good snow amounts or photos to share with the @NWSGJT? pic.twitter.com/YVet7P1SVF

Great viewer pic from out in Cheyenne Wells. Tornadoes, rain, snow. #Cowx has it all today. @KDVR pic.twitter.com/49GBOJAX29

Recent CDOT pics of the Grand Mesa and Monarch Pass. Yep, snow! #cowx pic.twitter.com/jOTUwlB58v

Heavy snow and slow travel continue over Monument Hill. Snow will let up late tonight #cowx pic.twitter.com/0sREJkFstT

@weather5280 nice snowfall rate with accumulation in SE Aurora #cowx pic.twitter.com/0PiWtuf3Vh

Sinkhole has closed part of right lane on Centennial Blvd. south of Garden of the Gods Rd. pic.twitter.com/QlyXQ37GAJ