Oops, it doesn't look like 'weather service in the hazardous weather outlook the day' is a national day..

Other days

Me Day

Latina Equal Pay Day

Kale Day

Get Funky Day

Kiss A Ginger Day

Appreciate Yaself A Lil Extra Day

Kiss A Brunette Day

My Little Pony Day

Chocolate Milkshake Day

Lost Sock Memorial Day