Lightning in the area prompted a suspension of play Friday morning at the CJ Cup Byron Nelson.
The PGA Tour halted play in the second round at 9:46 a.m. at TPC Craig Ranch in McKinney, Texas.
First-round leader Scottie Scheffler was 2 under through nine holes and 12 under for the tournament at the time.
Starting on the back nine, Scheffler eagled the par-5 18th to move two shots clear of Jhonattan Vegas of Venezuela.
Preferred lies are in effect for the second round with thunderstorms in the forecast all day Friday.
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