This summer, the EDDI has consistently been in its highest drought category, E4, over parts of California, a level that can be expected only 2 percent of the time based on records going back to 1980. Now, with a potentially historic heat wave descending this weekend over California and the Pacific Northwest, those drying effects will only intensify, pulling more moisture from plants and soils.
Source Article from https://www.washingtonpost.com/weather/2020/09/02/california-heat-wave-wildfires/
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