Lancashire made a solid start to the rain-delayed LV= County Championship Division One Roses clash at Headingley but a pair of Yorkshire wickets left the match finely poised heading into day two.
Heavy showers meant there was no play before 4.45pm in the first championship instalment of this famous rivalry since 2011, with 28 evening overs possible.
Lancashire's openers Paul Horton and Luis Reece moved to 70 without loss, before Yorkshire hit back to make it 87 for two at the close of play.
The rain was a blow for high-flying Yorkshire, who are aiming to win their first four-day Roses match in 12 years this week.
— Yorkshire CCC (@Yorkshireccc) May 25, 2014
The hosts won the toss and elected to field, but Horton and Reece came out in no mood to relinquish that fine record without a fight.
Their partnership brought up an unbeaten half century after 12 overs - Lancashire's first opening 50 stand of the championship season - before Yorkshire's patience finally paid off.
Reece fell into a well-placed trap on 23, hooking straight to Ryan Sidebottom at fine leg off Liam Plunkett.
It was a comfortable low catch for Sidebottom and checked Red Rose momentum, with Lancashire only able to add another 17 runs from that point to the close of play.
Reece had hit three boundaries, to Horton's six, before that but the 23-year-old survived a scary moment after four overs when Tim Bresnan missed him at third slip with the visitors on 24.
Bresnan, released by England to play in the match on Sunday morning, made amends in the penultimate over by trapping Karl Brown lbw for three.
Horton remained on 48 not out, with veteran South African Ashwell Prince alongside him on nought after Lancashire opted against employing a nightwatchman