The onslaught of severe winter weather has intensified the American Red Cross's severe blood shortage, as mounting cancellations hinder the organization's ability to rebuild the national supply.

The National Weather Service on Thursday warned that “dangerously cold and very dry Arctic air” will spill into the continental United States and lead to “life-threatening risk of hypothermia and frostbite” as temperatures drop well into negative territory, creating some of the coldest weather on Earth.

The National Weather Service issues a litany of notices before and during inclement weather events. They can be important signals on how to respond.

Extreme winter weather will blanket the eastern half of the U.S. this weekend with a combination of bitterly cold temperatures, gusty wind and — for some — heavy snow. For the tri-state, cold weather advisories are in place through at least Saturday morning.

Extreme cold, snow and ice are a possibility as the first major winter weather comes to Hutchinson over the weekend of Jan. 23 to 25.

It’s already been very cold throughout the week and with subfreezing temperatures on the way, any precipitation will need to be closely monitored.

After weeks of warmer weather, Oklahoma is bracing for below freezing temperatures, possible snow and ice this weekend. Here's what weather officials are forecasting and what you can do to prepare for inclement weather.

Extreme Cold Warning issued for southeast Louisiana and southern Mississippi, with dangerously cold wind chills and strong winds expected.

Extreme cold, snow and ice are a possibility as the first major winter weather comes to Salina over the weekend of Jan. 23 to 25.

It’s already been very cold throughout the week and with subfreezing temperatures on the way, any precipitation will need to be closely monitored.