Three players were tied for the lead at 8-under when play was suspended.
The Sylvania area was drenched by several inches of rain on Wednesday before the tournament began on a soggy Highland Meadows Golf Club course, but sunny skies were forecast when second-round play resumes Saturday morning.
Reilley Rankin and Mi Hyun Kim were in the clubhouse Friday when Natalie Gulbis rolled in a 10-foot birdie putt on the ninth hole to grab a share of the lead before storms suspended play around 3 p.m.
Annika Sorenstam was 2-under through 11 holes, tied for 14th place with seven other players.
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