On Saturday at 3:39 p.m. an extreme cold watch was issued by the National Weather Service valid for Monday between midnight and noon.
"Dangerously cold wind chills as low as 20 below at elevations above 3500 feet, and as low as 5 to 10 below in valley locations possible," adds the NWS. "Unless the forecast changes, elevations above 3500 feet will likely require an Extreme Cold Warning, while elevations below 3500 feet will need an Advisory."
"The cold wind chills as low as 20 below zero could result in hypothermia if precautions are not taken," says the NWS. "Dress in layers including a hat, face mask, and gloves if you must go outside."
Understanding cold weather alerts
Extreme cold watch: Be Prepared. An extreme cold watch is issued when dangerously cold air temperatures or wind chill values are possible. As with a warning, adjust your plans to avoid being outside during the coldest parts of the day. Make sure your car has at least half a tank of gas, and update your winter survival kit.
Extreme cold warning: Take Action! An extreme cold warning is issued when dangerously cold air temperatures or wind chill values are expected or occurring. If you are in an area with an extreme cold warning, avoid going outside. If you have to go outside, dress in layers, cover exposed skin, and make sure at least one other person knows your whereabouts. Update them when you arrive safely at your destination.
Cold weather advisory: Be Aware. A cold weather advisory is issued when seasonably cold air temperatures or wind chill values, but not extremely cold values, are expected or occurring. Be sure you and your loved ones dress appropriately and cover exposed skin when venturing outdoors.
Source: The National Weather Service
