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Ok so I’ve lived in these states my whole life and I love geography and know a little bit about this, apologize while I geek out a bit. (I’m also more intereste
by dickeytk 7y ago
Ok so I’ve lived in these states my whole life and I love geography and know a little bit about this, apologize while I geek out a bit. (I’m also more interested in geography than meteorology per-se, so I’m only 90% confident all of this is right)
Oregon, Washington, and BC have bad fires too (not as bad, but bad nonetheless), but the rainy season comes much earlier. Here on the west coast you can set your watch to when the rainy season starts. Washington it starts within a couple weeks of early October, Oregon late October (I grew up there and never remember a dry Halloween, but it was also one of the first rains in months). California is so big it varies, but weatherman down here in the bay is saying mid-November at the earliest.
Low population in the forested areas is a factor, but less so. We just have fewer fires and they’re easier to fight.
There is also the type of trees, California is full of eucalyptus (arguably an invasive special from Australia) that constantly dumps debris in the form of oil rich bark and leaves and no natural insects are around to break it down.
Oregon and Washington don’t have that problem.
Arizona and Nevada have nothing to burn. The Nevada border is almost entirely huge mountains. It seems odd that 2 straight lines meeting at Lake Tahoe would be such a dramatic change from wet to dry, but it is. Arizona doesn’t look any different from south-East California, but that’s also probably the only part of California not affected by fires.
The Diablo/Santa Ana winds are also a big factor especially in Southern California. Those are ironically caused by the rainstorms in Oregon and Washington. The winds come in, full up the massive Great Basin of Nevada and Utah and eventually spill out over the mountains in California causing super, super dry and hot winds that can be the level of hurricanes. It’s this time of year when Oregon and Washington are getting rain and California is not that is especially precarious.
I’ve lived in both the Bay and LA for years now and I’ve actually never been awake for them. They only last a few hours and it seems only at night. I’ve seen the aftermath though, tons and tons of tree debris everywhere. In LA the palm trees even fall over and it looks like a war zone the next day.