This has been a heatwave for the record books–and one that, notably, the weather models predicted very well quite far in advance despite its highly anomalous/record-breaking nature. Although the heat has been a dry one in NorCal, that has not been the case in SoCal–where densely populated coastal areas that largely lack air conditioning have been subjected to extraordinary and even Miami-like humidity along with the heat. Monthly and all-time overnight minimum temperature records have also been set as temperatures fail to recover much, especially away from the coast. Some places have shattered all-time September temperature records–and a few spots have re-broken all-time Sep monthly records consecutively for 2-3 days. Places in NorCal, including Sacramento, Livermore, Santa Rosa, and Ukiah, set new all-time high temperature records in the 115-117F range. The (ongoing) extreme heatwave across California, the focus of my last blog post, has produced any number of benchmark-setting temperature records in recent days. Let me just start by saying that this is perhaps the singularly most unusual and extreme weather week in quite some time in California–and that is saying something. #CAwx #Heatwave2022 #CAheatwave - Daniel Swain September 7, 2022 Mostly sunny skies are anticipated to return Wednesday.īay City News staff writer Jeff Ballinger contributed to this story.And etc. Tuesday will see a 20 percent chance of rain in most of the Bay Area. The sorely needed storm hit the region so hard that it has forced closures of some schools, roadways and freeways due to flooding mudslides and other debris blocking roadways and power outages affecting as many as roughly 147,000 PG&E customers late Sunday night.Ĭonditions are expected to be more mild the rest of the week, according to the weather service. In Sacramento, the 5.44 inches recorded there over the weekend broke the previous record of 5.28 inches set in 1880.īefore Sunday, seven of the 10 highest rainfall totals in the region were recorded in the 1800s, according to a list of totals recorded since 1849 and shared by the National Weather Service. The city’s highest rainfall total for a single day is 5.54 inches recorded on Nov. The previous high in San Francisco for October was 2.48 inches recorded on Oct. In San Francisco proper, Sunday’s 4.02 inches of rain alone accounted for the fourth wettest day in the city’s history and set a record for wettest October day. In the central Bay Area, rainfall reached between four and five inches in Oakland, Half Moon Bay, Hayward and at the San Francisco International Airport. Saint Helena and southwest Yountville in Napa County both eclipsed nine inches as did Boulder Creek in the Santa Cruz Mountains. Nearly every county in the greater Bay Area saw seven inches or more of rainfall, according to NWS data. Much of the Bay Area also saw wind gusts on Saturday and Sunday as high as 92 mph in Alameda County and upwards of 60 and 70 mph in other parts of the region. Tamalpais saw the most rainfall of anywhere in the greater Bay Area, with 16.55 inches as of roughly 6:30 a.m. Tamalpais and the unincorporated communities of Woodacre in Marin County and Venado and Glen Ellen in Sonoma County all measured double-digit rainfall totals over the weekend. Rainfall collection sites in Danville, Boulder Creek, Mt. Multiple Bay Area counties saw more than 10 inches of rainfall in 48 hours as an atmospheric river pelted the region over the weekend, according to the National Weather Service.
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