'There was no way to get the course ready to play,' said USGA official Walter Driver. 'I'm told the seventh fairway is completely under water. The third green I'm told is functionally an island green and there wasn't any way to get people out there.'
The second round will resume Saturday morning at 8:15 a.m. ET with the final 36 holes of the Champions Tour's fourth major of the season to be played on Sunday.
'The plan is to spend the afternoon as best we can getting the course ready to play Saturday,' Driver said. 'Then we plan to play the second round Saturday and play 36 holes on Sunday, beginning as early on Sunday as we can to try and make sure we can get all 36 in.'
Champions Tour rookie Peter Jacobsen, who is recovering from hip surgery, posted a 6-under par 65 on Thursday to take a one-stoke lead after the opening round.
Craig Stadler stands in second place at 5-under-par 66, while Jay Haas, like Jacobsen, a Champions Tour rookie, carded a 4-under-par 67.
Wayne Levi, Mark McNulty, Gil Morgan, Jose Maria Canizares, David Eger, Bob Gilder and 2002 U.S. Senior Open champion Don Pooley share fourth place at 3-under-par 68.
Bruce Fleisher, the 2001 U.S. Senior Open champion, heads a group of players at minus-2. Also in that group are Jay Sigel, Tom Kite, Leonard Thompson, Tom Jenkins, Darrell Kestner, John Aubrey, Andy Bean, Walter Hall and Dan Halldorson.
Bruce Lietzke, the defending champion, struggled in the first round of his title defense. He posted a 4-over-par 75 and stands in a tie for 75th.
Pete Oakley, the unheralded club professional who won the Senior British Open last week, opened with a 5-over-par 76.