![]() Saturday: First, let's remind everyone: The drought's not over. Public Information Statement: 3-Day Rainfall Reports Here's the NWS regional rainfall report with three-day storm totals for dozens of locations through Sunday morning: Yes, that's less than 1 percent of what's fallen on Mount Tam, a result of topography and the fact that the richest source of moisture for the current storm has been focused far to the north of Silicon Valley. ![]() 13 in the 72 hours ending Sunday morning. The big exception so far: most of the South Bay east of the Skyline Boulevard crest and Santa Cruz Mountains. ![]() But most of the region have gotten a decent soaking. It's safe to say the rest of the Bay Area hasn't seen anything like the deluge that's been pouring down on the North Bay. As of last week, the district's reservoirs were a little more than half full and at just 64 percent of average storage for this time of year. It'll be interesting to see how that affects the water supply for the Marin Municipal Water District, which is almost entirely dependent on storing water running off Mount Tam. Going into Sunday morning, that total stands at 23.01 inches 27.95 inches. 06 of an inch of rain in January - the same as San Francisco - and for the water year beginning last July 1, it had recorded 7.28 inches of precipitation before the first drops of rain started to fall around sunset on Wednesday. But, like the rest of the state, it's been dry up there this year. Rainfall at Lake Lagunitas, a small reservoir on the north flank of the mountain, averages 52 inches of rain a year (compared with about 21 inches a year in downtown San Francisco, about 10 miles or so away). Yes, Mount Tamalpais is a famously wet place during winter storms. More than 10 inches of rain fell there Saturday, and the total since the current round of wet weather began Wednesday evening is 15.73 inches 20.67 inches (and counting). Some locales in the Russian River watershed had gotten close to a foot of rain in the 72 hours beginning Wednesday afternoon and ending Saturday at 4 p.m.īut the most startling rainfall report I've seen as I look through the various precipitation tables comes from the Middle Peak rain gauge on Mount Tamalpais. The storm has brought a fantastic-sounding amount of rain to some of the highland areas north of the Golden Gate. The Press Democrat in Santa Rosa features a good picture gallery of shots from around the county. Flooding in Sonoma County closed a number of rural roads Saturday and Sunday (see the county's current road closures list). ![]() The North Bay has been at the receiving end for more than 24 hours of a fire hose feeding moisture from the tropics southwest of Hawaii all the way to the coast north of the Golden Gate. Sunday: The National Weather Service has issued a flash flood watch for Marin, Sonoma and Napa counties effective through 9 p.m. And if you're thinking about when the next real storm might come barging through, the NWS says: "Longer-range outlook going through all of next week keeps the main storm track to the north and shows a higher than normal chance for drier-than-normal conditions with above-normal temperatures." Right now, forecasters say there's very little chance of rain over the central Bay Area or South Bay during the week and that the one place that might see a little rain is northern Sonoma County. Monday: After the deluge, what? This morning's forecast discussion from the National Weather Service Bay Area office in Monterey is calling for a "fairly quiet week" ahead. Rain falls on San Francisco's Embarcadero.
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