4/15/2023 0 Comments Sf bay area precipitation totals![]() "This groundbreaking data will help us develop tools to allow our port, airport, utilities, and the City as a whole to adapt to our changing climate and increasingly extreme storms." "Having this level of detail is a game changer," said Dennis Herrera, General Manager of the San Francisco Public Utilities Commission, which was the lead City agency on the study. The research will help the region plan its future infrastructure with mitigation and sustainability in mind. ![]() However, they found these increases would not occur with every storm, only those that include an atmospheric river accompanied by an extratropical cyclone. Re-simulating five of the most powerful storms that have hit the area, they determined that under future conditions some of these extreme events would deliver 26-37% more rain, even more than is predicted simply by accounting for air's ability to carry more water in warmer conditions. Writing in Weather and Climate Extremes this week, researchers described the potential impacts of climate change on extreme storms in the San Francisco Bay area, among them the December 2014 North American Storm Complex. The December 2014 North American Storm Complex was a powerful winter storm, referred to by some as California's "Storm of the Decade." Fueled by an atmospheric river originating over the tropical waters of the Pacific Ocean, the storm dropped 8 inches of rainfall in 24 hours, sported wind gusts of 139 miles per hour, and left 150,000 households without power across the San Francisco Bay Area. Precipitable water, sea-level pressure, and 10-m wind are shown at the peak of the event, 00z December 3, 2014. Storm total precipitation is calculated over 00z 1 December - 00z December 7, 2014. Sea-level pressure (mb shaded) and 10-m wind (m/s vectors) from the (c) NARR and (d) ensemble mean of the historical simulations on the 27 km resolution domain. Wind speed contour interval is 5 m/s starting at 10 m/s. Precipitable water (mm shaded) and wind speed at 10-m (m/s contour) from the (c) NARR and (d) ensemble mean of the historical simulations on the 27 km resolution domain. Storm total precipitation (mm) from the (a) gridMET observations and (b) ensemble mean of the historical simulations on the 3 km resolution domain. Light rain and drizzle are forecast for Monday night with the first significant rain coming in on Tuesday, December 21.īeyond the weekend models suggest a possibility of rain through the end of the year, however, it is difficult to predict the weather beyond seven days.Observed and simulated characteristics of storm 1b. The rain is much needed after two, consecutive dry winters in California.īrian Garcia with the weather service said that rainfall totals at most locations in the Bay Area since October 1 are at least 200% over normal for this time of year. "We already had a wet December and we’re looking to continue this pattern, probably close to the end of month," Brooke Bingaman, a forecaster with the weather service, told SFGATE. The Santa Cruz Mountains and the Santa Lucia Range in Big Sur could also record over 6 inches of rain. The National Weather Service is predicting 2 to 3 inches of rain in San Francisco, Oakland, and other urban areas and up to 5 inches of rain in the coastal mountain ranges of the North Bay between Monday, December 20, and December 26. ![]() The holidays are expected to have a soggy end this year in the Bay Area.Īccording to SFGATE, rain is in the forecast for the next eight days straight through Christmas days and potentially until the end of the year.
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