Oops, it doesn't look like 'weather service issues winter weather advisory into day' is a national day..

Other days

Latina Equal Pay Day

Raise Awerness Of Zeus Day

Stress Awareness Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Lost Sock Memorial Day

My Little Pony Day

Singles Day

Get Funky Day

Tell Ur Crush You Like Them Day

Cat Girl Day