Comments by "hizzle mobizzle" (@hizzlemobizzle) on "Wildfires on US West Coast turn day into night | DW News" video.
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@demef758 I hate long posts, but at least this way you can't straight up deny reality again.
Extreme heat, strange storms, and climate change set the stage for California’s fires
The lightning storm around the San Francisco Bay Area that sparked many of the current California fires was a rare event.
“The last time we had something like this was over a decade ago, actually,” said Bennett. The fact that lightning started these fires is also noteworthy. The vast majority of wildfires in California are ignited from human sources — power lines, arson, neglected campfires, and so on.
But the fires wouldn’t have been so bad were it not also for the extreme heat that’s been baking the state for weeks.
“This is a big, big, prolonged heat wave characterized not only by hot daytime temperatures but also record-warm overnight temperatures and an unusual amount of humidity,” said Daniel Swain, a climate scientist at the University of California Los Angeles and a researcher at the National Center for Atmospheric Research. “It turns out increased humidity plays a role in why there are so many fires right now.”
A decaying tropical storm earlier this month in the eastern Pacific Ocean sent a plume of moisture over California. Amid the scorching heat, the moisture formed clouds that generated immense amounts of wind, thunder, and lightning but very little rain. “The humidity was high enough to produce these thunderstorms, but not high enough to produce significant flooding rainfall that would mitigate fire risk,” Swain said.
Local residents sit next to a vineyard as they watch the LNU Lightning Complex fire burning in nearby hills on August 20, 2020 in Healdsburg, California.
Fires like those in the LNU Lightning Complex were ignited by dry lightning, a product of moisture from a decaying Pacific storm. Justin Sullivan/Getty Images
Much of California’s vegetation was also parched and primed to burn, and concerns that this would be an exceptionally bad fire year started to emerge in February as the state emerged from one of its driest winters on record. This was then followed by an abnormally hot spring. “There were a number of unusually significant early-season heat waves this spring both in Northern and in Southern California,” Swain said.
And California is now experiencing the impacts of climate change, which is manifesting in fires. The weather in California is becoming more volatile. Temperatures are also rising, which is causing the state’s forests, grasslands, and chaparral to dry out even more. The state already has millions of dead trees stemming from years of drought and pests like pine beetles. More heat could stress these ecosystems even further.
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