The second round is scheduled to resume at 7:00 a.m. ET Saturday morning. The plan is to play as much golf as possible on Saturday, but the forecast calls for even more storms.
If the second round is completed on Saturday, one option would be to play 36 holes on Sunday, although Sunday's forecast is not great in the afternoon. A Monday finish always looms as a possibility.
'The perfect scenario would be getting the second round in tomorrow,' said tournament director Mark Russell. 'We really haven't thought much beyond that, but we're keeping all our options open.'
Steve Jones, the 1996 U.S. Open champion who is currently ranked 743rd in the world, fired an 8-under-par 64 on Thursday to take a one-shot lead.
Fred Funk, Zach Johnson and Lee Westwood are tied for second place at 7-under-par 65.
Golf's 'Big Four' posted mixed results in the first round.
Vijay Singh, the No. 1 player in the world, carded a 5-under 67 and is part of a group tied for eighth place.
Tiger Woods and Phil Mickelson, ranked second and fourth, respectively, each posted rounds of 2-under-par 70.
Ernie Els, No. 3 in the world, mixed three birdies and two bogeys for his round of 1-under 71.
None of those players teed off in the second round.
European Ryder Cup partners Luke Donald and Sergio Garcia shot matching rounds of 6-under 66 in round one and share fifth place with J.L. Lewis.
Padraig Harrington, who has been the runner-up the last two years, posted a 67 on Thursday to join Singh, Brett Quigley, Bob Estes and Bob Tway in a share of eighth place.
Jesper Parnevik was the only player to move into the top 15 on the leaderboard on Friday. He birdied the second hole and is now 4 under par for the tournament through three holes in his second round. He is tied for 13th place with seven other players.
Defending champion Adam Scott opened with a 3-under 69 and is tied for 20th place.