Oops, it doesn't look like 'weather service skywarn recognition day' is a national day..

Other days

polyamory

Polyamory Day
special education

Special Education Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
bow tie

Bow Tie Day
artists

Artists Day
appreciate yaself a lil extra

Appreciate Yaself A Lil Extra Day
hiv awareness

Hiv Awareness Day
kiss a ginger

Kiss A Ginger Day
ponytail

Ponytail Day
prescription drug take back

Prescription Drug Take Back Day