Meaning higher rain rates will lead to an increase in mountain runoff, leading to dangerous mudslides and flooding in higher elevations and that water will rush down to the foothills. Talking about climate, she says warmer oceans will lead to increased moisture in the atmosphere. We have also talked to Spectrum News 1 meteorologist Autumn Robertson who’s based out of Los Angeles about this scenario. This means increased runoff could lead to catastrophic flooding, landslides and debris flows, especially in California’s burn scars areas. The paper highlights “that runoff in the future extreme storm scenario is 200-to-400% greater than historical values in the Sierra Nevada because of increased precipitation rates and decreased snow fraction.” That extreme weather event could bring 15 to 35 inches of rain to the state, especially up in the Sierra Nevada, which holds California’s snowpack. The storm they hypothesized could bring waves of atmospheric rivers for one month. He says ARkStorm 2.0 shows the “plausible worst-case scenario extreme storm sequences might look like in the future.” Swain talked about the study in a Twitter Space on Aug. Cumulative 30-day precipitation (mm) during ARkHist (A) and ARkFuture (B) (Science Advances)ĭr.
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