Tide likely turning on winter storms as drier conditions lie ahead, weather forecasters say

A flooded Webster Street in Oakland is closed to traffic following heavy rains on Jan. 5, 2023. Just as Bay Area residents are becoming accustomed to severe weather, forecasters expect changing patterns that should result in drier conditions starting later this week. (Photo by Isaac Ceja/Bay City News)

The parade of winter storms may be coming to an end soon, state water officials said on Monday.

After Wednesday’s forecasted storm — the ninth in three weeks — the weather pattern will be transitioning to drier conditions, said Dr. Michael Anderson, state climatologist of the Department of Water Resources.

This is because of higher atmospheric pressure, colder temperatures and lower storm elevations, he said, which will likely bring about dry weather for the rest of the month.

“High pressure really limits the amount of moisture transported into the state, [which is] very different from what we’ve seen over the past three weeks,” Anderson said at a news conference.

Jeremy Arrich of DWR’s flood management department said that river levels have receded in most areas of the state, though there are a few areas that may face rising levels and localized flooding later this week.

Arrich said that the full California Flood Operations Center will continue to monitor flood watches in effect in the Bay Area and assist when needed.

A large sinkhole that formed on Highway 92 west of Highway 35 in San Mateo County on Jan. 12, 2023, forced the CHP to close the road pending repairs. In the past two weeks state flood operations personnel have been dispatched to more than 50 storm-related incidents in 17 counties, ranging from sinkholes to eroding levees. (Photo courtesy of CHP via Bay City News),

In the past two weeks, the operations center has already deployed experts to resolve over 50 storm-related incidents like levee erosions or breaks, seepage, sloughing and sinkholes in 17 counties.

“In terms of flood system performance overall, we do expect to see a number of localized flooding incidents that we’ve seen over the past couple of weeks to occur across the state during such a prolonged rain event with such intense rainfall and sustained high water — incidents of levee sloughing, steeping sinkholes, minor erosion,” Arrich said.

Though the end is in sight, it is still important for residents to listen closely to local law enforcement and emergency departments, he said.

“Local flood managers across the state still have some work to do as water recedes,” Arrich said.

Molly White, State Water Project water operations manager at DWR, said that the rainfall has made the statewide water reserve storage at 91 percent of historical average, though major water reservoirs like Shasta and Trinity still maintain below-average levels.

In the East Bay, DWR will continue to prompt flood control releases from Alameda County’s Lake Del Valle, as required by the U.S. Army of Engineers.

Last week DWR warned Pleasanton residents to avoid creeks and arroyos near the lake, as there may be rapid changes in water levels.

“Based upon the current conditions and the dry and cold forecasts, we do have ample storage to still be able to conserve and gain storage over the next couple of weeks,” said White.

The post Tide likely turning on winter storms as drier conditions lie ahead, weather forecasters say appeared first on Local News Matters.

Leave a Reply

The Exedra comments section is an essential part of the site. The goal of our comments policy is to help ensure it is a vibrant yet civil space. To participate, we ask that Exedra commenters please provide a first and last name. Please note that comments expressing congratulations or condolences may be published without full names. (View our full Comments Policy.)

Your email address will not be published. Required fields are marked *