Wet weather expected in SF Bay Area as weak systems expected to develop this week

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The San Francisco Bay Area can expect more cold and wet weather following Monday’s light rain and icy temperature, the National Weather Service said, saying a couple of weak systems are anticipated to form this week, SFGATE reported.

Is the storm season coming for the region after the prolonged warm weather?

Brayden Murdock, a weather meteorologist, said the Bay Area is indeed “getting a few peeks through the storm door.”

He said that the light rain that hit on Monday measures seven-hundredths of an inch.

Dry and warm conditions are expected Tuesday with the North Bay city expected to reach 63 degrees. Santa Rosa, meanwhile, hit a high of 49 degrees on Monday.

But as a weak system develops over the region, light rain enters the forecast for Wednesday night into Thursday. The initial shower will hit the North Bay and will eventually be experienced in the central Bay Area.

There is no “major soaker by any means”, the weather service said, although rainfall totals will be within a few hundredths to a tenth of an inch range, with mountaintops probably gathering up to a quarter of an inch.

Through the weekend, the Bay Area will experience a mass of cold air brought about by the mid-week system.

The coldest conditions can most likely be felt on Thursday evening until the morning of the next day, Murdock said, noting that inland valleys can record a mercury drop in the low 30s.

On Saturday into Sunday, another system is expected to develop and carry thicker rain as compared to the first two systems in the week.

San Francisco could see up to a quarter of an inch, according to Murdock.

“That one still looks pretty robust compared to what we’ve had,” he said. “This one is a pretty good setup with rain chances as the low pressure will be setting up along the coast. We could get a fair bit of steady rain over a good amount of time. I will add the caveat that it could change between now and then.”

It will be a “nice pattern shift,” as Mudrock explained the wet weather this week. He noted however that it is not necessarily a “pattern breaker.”

“We can still settle back into the dry pattern we had earlier this month,” he said.