Nasty weather is wreaking havoc on the AT&T Pebble Beach Pro-Am. 

With winds reaching 40 mph on Saturday, play was halted during Round 3. The weather horn blew at 3:12 p.m. ET on the Monterey Peninsula Country Club’s Shore Course and then at 3:20 p.m. ET at Spyglass Hill Golf Course and Pebble Beach Golf Links. 

The Tour was anticipating a 5 p.m. ET restart, however, the players wouldn't take another shot Saturday as play was suspended for the rest of the day.

"I knew when they blew the horn what it was," Keith Mitchell said. "I figured we were just going to stop in place for a little bit. Maybe go back out. But the forecast, every time you looked at the forecast it looked like it was going to get windier and windier." 

Round 3 will resume Sunday at 8 a.m. PT. With 72 holes unable to be completed before sundown, the tournament will finish on Monday. The last time this event took an extra day to finish was in 2019 when Phil Mickelson and Paul Casey played three holes Monday morning to complete the tournament, which Mickelson won. 

If there are no additional delays on Sunday, the final round will begin at approximately 12:30 p.m. PT. However, up to a half-inch of rain is in the forecast for Sunday, as Golf Channel's Todd Lewis reported during the opening round. 

Full-field scores from the AT&T Pebble Beach Pro-Am

After three rounds, the cut will be reverted to the low 65 and ties for the final round.

The pro-am portion of the tournament will conclude after 54 holes. 

With play suspended, Peter Malnati leads Joseph Bramlett and Mitchell by two strokes at 10 under. Malnati was on No. 13 at Pebble Beach Golf Links when the weather horn was blown on Saturday. 

"We've done this so many times, rain delays and start and stops, that you just get used to it," Mitchell said. "It's definitely different, but everybody's got to do it. So it's not necessarily harder. You just got to wake up tomorrow and just go through your normal routine and try to rock and roll in the afternoon."