The "FI" of KFIs call sign was an abbreviation for "farmers information."
Every winter evening between 1924 and 1956, KFI would deliver a frost report at 8 pm that would tell citrus farmers
whether to turn on wind machines or light "smudge pots" to keep their orange and lemon groves from freezing.
The frost warnings moved to 7 pm until the late 1970s when they were removed from the schedule.
The farmers information explains the bucolic field featured in the beautiful graphic below.
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