With the winter season upon us, winter weather warnings are bound to arise. The primary goal of a weather event warning is to help keep residents safe during a winter storm. The National Weather Service (NWS) has created a set list of criteria for when they issue a Winter Storm Warning.

We are taking a look at the different type of winter weather alerts ranging from a Winter Storm Warning to an Extreme Cold Warning.

The NWS Reno NV issued a winter storm warning at 3:14 a.m. on Friday in effect until 4 p.m. for Mono County.

Yosemite is under a winter storm warning which was issued by the National Weather Service on Tuesday at 11:33 a.m. The warning is valid from Thursday 1 a.m. until Friday Nov. 14, at 4 a.m.

Conditions are worsening for people living in Gaza as winter weather sets in. Video shows heavy rainfall soaking people in tents. NBC News’ Matt Bradley reports on the new warning about a looming medical disaster.

Multiple states were expected to see snow on Tuesday, while widespread freeze warnings spanned the southern U.S.

A gale warning alert means there are high sustained winds or frequent gusts over a body of water, so they're reserved for communities near oceans, sounds or lakes.