Maybe I Shouldn't Be Checking the Tracking of My Purchase

I bought something recently that I've been waiting to see on my doorstep.  I decided to check the tracking and I found a few interesting comments.

Uncontrollable Clearance Delay

Uncontrollable Clearance Delay

Two days in a row in two different places.  

Has anyone seen that before?  Are there rain delays with shipping like the one today in Chicago?