Rain smacked the North Bay on Wednesday, kicking off what is forecast to be one of the wettest Junes ever in Santa Rosa.

With .22 inches of rain already recorded on Day One, up to 2 inches of rain is expected Friday night into Saturday.

"If everything comes together we could be sliding into the second wettest June on record, if the forecast is still on track," said Steve Anderson, a meteorologist with the National Weather Service.

"It definitely looks like record-breaking rainfall," he said.

The storms and predicted rainfall have created havoc for North Bay event organizers — from farmers markets to jazz festivals to graduations.

Santa Rosa's Wednesday Night Market was canceled for the second consecutive week. An Annadel State Park mountain bike race scheduled for Sunday and this weekend's Sonoma Country Music Barbecue at the Sonoma County Fairgrounds each were postponed.

"It's winter in June," Anderson said. "It's very unusual."

Snow fell Wednesday in the Lake Tahoe area, with Alpine Meadows ski resort reporting 10 inches of new snow overnight Tuesday into Wednesday, with snow still falling Wednesday afternoon.

Because of the steady snow, chain controls were set up at the summit on Interstate 80 near Boreal Ski Resort.

The record rainfall for June in Santa Rosa is 2.43 inches in 1929. Second wettest was in 1967 with 1.94 inches for the entire month. In an average year, Santa Rosa only gets 0.19 inches of rain in June.

Today is expected to be mostly dry, with a 30 percent chance of rain.

The end-of-week storm is yet another Alaskan gift, spinning down with cold air and lots of moisture. It will spread clouds and rainfall as far south as Santa Barbara, Anderson said.

"Everyone's going to get some rain," he said.

But the heaviest could drench the North Bay.

All but one of the events planned for the inaugural Sonoma Wine Country Senior Games from today through Sunday will be held as scheduled, said Marrianne McBride, president and CEO of Council on Aging of Sonoma Countythis weekend.

The tennis matches have been canceled, but golf, which will be played today, will not be affected, and soccer and swimming will go on as scheduled, she said.

"Swimming is fine, they'll be wet anyway," McBride said.

On Wednesday evening, 67 Roseland University Prep seniors graduated in an outdoor ceremony at Sonoma State University.

There was no other option, said Martha Quintero, school office manager.

"It's outside, rain or shine. People are probably going to have rain boots and umbrellas," Quintero said as she eyed the weather hours before the ceremony. The weather was chilly but dry for the graduates.

Windsor High School Principal Marc Elin is counting on getting a break for Saturday evening's graduation for 380 seniors.

"We're still going forward with it being outside. We're keeping an eye on the weather," Elin said.

"In years past we've moved it into the gym," he said. "But we have a large number of people here.

Elin estimated more than 5,000 people could arrive for the event, far more than the gym can hold.

"If it's light showers, we'll go forward" with the outside plan, he said.