In place of Black Friday I am offering a White Friday instead. Here is a fantastic picture of a rare fogbow from Scotland which is making the rounds of my Facebook feed today. You can read about what makes a fogbow or white rainbow at Yahoo here.
If that’s not enough of the white stuff, you will also be interested in this snow manual written by CoCoRaHS founder Nolan Doesken. You can learn about snow climatology and how to measure snow correctly at http://ccc.atmos.colostate.edu/pdfs/snowbook.pdf.