By Rick Hurd

The biggest Bay Area storm in more than a year was departing Sunday night with some residual showers, following a relatively brief respite from the heavy rains that marked the previous two days and brought flooding concerns and power outages.

A chance of light overnight showers and patchy morning fog was expected Monday and the high pressure ridge looming over Northern California is building back up, National Weather Service forecaster Bob Benjamin said.

As a result, conditions are expected to remain dry until late Wednesday or early Thursday when light rain is forecast to fall in the North Bay. Another weak front may hit the Bay Area during the weekend, but the rainfall could be minuscule with totals hovering between one-tenth to one-quarter of an inch, Benjamin said.

Shoppers carry umbrellas as clouds bring rain to  Broadway Plaza in Walnut Creek, Calif., on Saturday, Feb. 8, 2014. (Jose Carlos Fajardo/Bay Area News
Shoppers carry umbrellas as clouds bring rain to Broadway Plaza in Walnut Creek, Calif., on Saturday, Feb. 8, 2014. (Jose Carlos Fajardo/Bay Area News Group) ( JOSE CARLOS FAJARDO )

The most recent 72-hour storm totals from the NWS, published at 9 p.m. Sunday, showed more than 6 inches of rain at the peak of Mount Diablo in Contra Costa County, and nearly 2 inches in Berkeley.

The Bay Area's heaviest rain came in Napa, Sonoma and Marin counties. The 11.71 inches of rain that fell in Kentfield over a four-day period exceeded the city's total rainfall in 2013.

Some areas of Santa Clara County recorded more than 3 inches, but only 1.49 inches fell on Mount Hamilton and only 0.21 at Mineta San Jose International Airport.

In San Francisco, 2.31 inches of rain fell, causing slick roads and creating a problem on the new eastern span of the Bay Bridge, where officials worked to repair a leak that left rainwater dripping into the steel structure beneath the road deck on the suspension stretch of the bridge section.

Such a problem, if left untended, could lead to corrosion inside the steel bridge, but Bay Bridge spokesman Andrew Gordon said the agency anticipated the problem.

"We're trying to get a sense of where the water is coming in, and whatever the problem is, we will fix it," Gordon said. "There is, and absolutely never was, any danger to the public."

In the Sierra, the storm more than 2.5 feet of snow at the Sierra-at-Tahoe ski resort and 27 inches at the peak of Sugar Bowl. The top of Kirkwood received 22 inches, with 16 inches at its base, according to the weather service. However, "normal" is 6 feet of snow in one storm.

The rain brought some hassles to airport travelers. A San Francisco International Airport official said 60 flights departing and 60 flights landing were canceled through 8:30 p.m. Sunday, and that flights were running 30 to 90 minutes behind schedule.

The Bay Area's heaviest rain fell in Napa, Sonoma and Marin counties, with the latest NWS measurements showing nearly 11.62 inches of rain atop Mount St. Helena, 8.63 inches of rain in Mill Valley, and 8.04 inches in Sebastopol. But by Sunday evening, the NWS had called off a flash-flood warning for the three North Bay counties.

In the Santa Cruz Mountains, Ben Lomond received 8.54 inches of rain but no snowfall, according to the NWS.

In San Jose, only four flights were canceled Sunday, each of them either destined or arriving from the Pacific Northwest, spokeswoman Rosemary Barnes said. A fifth flight scheduled to land in San Francisco was diverted to San Jose, she said.

At Oakland International Airport, only one flight was canceled, and spokesman Scott Wintner said it was not because of weather in the Bay Area. Only two flights had been diverted to Oakland because of the weather.

On the roads, the California Highway Patrol reported several minor wrecks and flooded roadways. One lane on the connector ramp from westbound Interstate 580 to eastbound Highway 24 was covered with water Sunday morning, as well as at the Broadway exit off I-580.

Caltrans workers and the CHP diverted commuters around the flooded areas, according to CHP Officer Eric Anderson.

Caltrans workers also were dispatched to repair a "bump" on northbound I-680 near Monument Boulevard, where the CHP reported that all lanes of the roadway had risen up and created a ridge, but noted that traffic flowed normally through the area, and no lanes were closed.

Rain also flooded the Geneva Avenue on-ramp to Interstate 280 in San Francisco early Sunday morning, according to the CHP.

PG&E said a power outage in San Francisco likely caused by the weather left 5,360 customers in the Richmond and Haight-Ashbury districts without power, but it was restored to all but 200 of them by noon, spokesman J.D. Guici said.

Contact Rick Hurd at 925-945-4789 and follow him at Twitter.com/3rdERH. Reporter Jennifer Modenessi contributed to this story.