winter storm harper

Got an alert from AA about the storm waiving change fees.

I am flying SNA-DFW-DSM tomorrow. It is supposed to start snowing around 1-2pm in DSM, and I take off around 3pm from DFW land 4:30.

I have never flown in when it’s kind of blizzard-y. Any frequent fliers here have an inkling if this is the kind of flight that gets cancelled?