In the meantime, California wildfire season has exploded over the past week, and there are now multiple dangerous and fast-moving fires of concern (as of this writing, the Mosquito Fire in Placer County and the Fairview Fire in Riverside County appear to pose the most imminent threats to life and property). In fact, predicted high temps in Sacramento for Wed-Fri each would have broken previous all-time Sep monthly record but for records that were shattered already this week! #CAwx /4FrwUhoDNB- Daniel Swain September 7, 2022 In fact, the high pressure system responsible will actually re-intensity slightly tomorrow, bringing hotter temperatures again closer to the coast (and across SoCal).Īlthough peak of exceptional NorCal heatwave was Mon-Tue, extreme heat will continue for 3 more days. Sacramento has already blown past its record for greatest number of 110 degree days in any calendar month, and will likely add at least 2 more before the week is over. Thanks to aggressive electricity conservation measures by individuals and large industrial facilities, California narrowly avoided widespread rolling blackouts last night amid record-breaking electricity demand (though there were still some regional outages).Īnd the heat isn’t over yet–the interior of NorCal continues to experience temperatures that would be all-time Sep record-breaking but for the even higher temperatures earlier this week (so they are “merely” daily records now). 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
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