Yorkshire reached 8-0 after winning the toss, Tom Kohler-Cadmore driving George Burrows’ first delivery in first-class cricket - a nervous full toss - to the extra cover boundary and Tom Bailey serving up four byes.
Play started 30 minutes late due to rain, which returned with a vengeance after eight minutes’ action.
Umpires Peter Hartley and James Middlebrook finally pulled the plug at 3.10pm.
Yorkshire recalled batsmen Will Fraine and Tom Loten in the absence of Jonny Bairstow and Dawid Malan, who are preparing for England’s T20 series against Pakistan.
Jared Warner, the 23-year-old pace bowler, replaced fellow youngster Dominic Leech from the side that drew with Derbyshire last week, with Warner making his maiden first-class appearance for the White Rose after playing two County Championship games last season on loan at Sussex.
Both Roses rivals are missing eight players due to international call-ups and injury, with 10 players making their debut in this prestigious fixture.
Yorkshire went into the game second in the north group - two points behind Derbyshire and 20 points above their third-placed opponents.
The two group winners with the most points from the three regional sections qualify for next month’s five-day final at Lord’s.