I know that if I detect even one drop of rain or snowflake that I am supposed to report a trace of precipitation for the day. What if I am not home, but my wife sees the flurries? Or in another hypothetical, I see flurries where I work six miles from my station, and the radar clearly shows the band of snow over my home location as well. Assuming that there is no evidence of precipitation in my rain gauge after this, should I report something?