The US is bracing for heavy snowfall as El Nino winter hits.
The National Weather Service has issued warnings for several states, including Colorado, Wyoming, and Nebraska.
The snowfall is expected to cause travel disruptions and power outages.
The weather system is expected to bring heavy snow to the Rockies and Plains regions.
The snowfall is expected to be heaviest in the higher elevations.
The El Nino weather pattern is caused by warming of the Pacific Ocean and can lead to extreme weather conditions.
Residents in affected areas are advised to take precautions and stay informed about the weather conditions.