An El Nino pattern (what currently exists) shifts things around across thePacific in such a way that storms come directly into California. These systemscan be cold-blooded or warm-blooded, depending on what's happening across therest of North America.This winter, we've had the southern El Nino storm track plus an abundant supplyof cold from the Arctic. The end result has been three monster snowstorms forthe mid-Atlantic region.

And here comes another, though this one probably won't be as bad as the recentsnowstorms.

The storm of concern will spread snow through the central Rockies Saturday,then the bad weather will expand across the Great Plains Sunday. Several inchesof snow and hazardous travel conditions can be expected this weekend fromWyoming to MIssouri.

The snowstorm will shift to the Ohio Valley and Northeast Sunday night andMonday, where it will cause more travel delays and another plague ofcancellations.

Story by AccuWeather.com Senior Meteorologist John Kocet.