**Appendix A**

**Table A1.** *Storm Data* Blizzards in the Grand Forks NWSFO CWA 1979–1980 and 2017–2018. Italicized events were not included in the typing or SOM analyses. Blizzards named by the Grand Forks Herald but not listed within *Storm Data* are not provided. These events were most likely winter storms with visibility, wind speed, or duration not meeting NWS thresholds.



**Table A1.** *Cont.*
