https://www.trbimg.com/img-59de8deb/tur ... 0/1150x647
Now, how did this fire basically leave nothing behind other than the bushes and trees?
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stickdog99 » Mon Oct 16, 2017 5:49 pm wrote:
https://www.trbimg.com/img-59de8deb/tur ... 0/1150x647
Now, how did this fire basically leave nothing behind other than the bushes and trees?
PufPuf93 » 17 Oct 2017 00:44 wrote:seemslikeadream » Mon Oct 16, 2017 5:30 pm wrote:cars have gas tanks....some houses have propane tanks
Also homes may have shake or asphalt shingles and once ignited a house likely burns hotter than a forest. Green wood in trees is 45% to 55% water while the lumber and other wood in a house is only 12% or so water. Plus there arte all sorts of other hot fuels in houses and other development. This is why forest fires leave standing trees even if they are all killed. Many are often still of quality to be used for lumber after dying in fires. Fire salvage is a controversial issue.
Most of the house and building fire started from the roof or some other instance of exposed wood or other material that readily burns hot.
The pictures are horrific and look to me like all out war. Fire bombing was used by the allies in WWII, think Dresden and Tokyo.
The Japanese set loose balloons to set forest fires along the Pacific coast. One of these balloons managed to kill and elementary school teacher and part of her class north of Klamath Falls, OR far from the Pacific. My Mother during WWII spent time in a fire lookout that looked down on the Pacific coast to watch for the balloons and other Japanese excursions.
It will be interesting to hear the results of the fire investigations. PG&E is already getting blame. I will find it hard to believe that there were not arson starts but they may be hard to identify. There is going to be more of this in California given climate change and increased urbanization, especially into lands that will be at increased risk for fire.
PufPuf93 » Mon Oct 16, 2017 6:58 pm wrote:stickdog99 » Mon Oct 16, 2017 5:49 pm wrote:
https://www.trbimg.com/img-59de8deb/tur ... 0/1150x647
Now, how did this fire basically leave nothing behind other than the bushes and trees?
I explained this on the last page. Also explained the burning interior of trees. You do not have very good arguments. There is no need to do "directed energy weapons" for this out come.
The green wood in the trees is of high moisture and there were not the fuel ladders to get fire into the crowns so they remain green and show as green on immediate infrared. Some may well live but many of not most are going to die because of cambium being killed by the heat and the trees being effectively girdled.
The intensity of the fires can be explained and also there was a "perfect storm" of weather and fuels. I can see that arson, even organized arson, could be an issue. I have been surprised that arson is not used more as a tool of terrorism.
So why aren't they called "urban fires" considering how flammable houses and cars are compared to vegetation?
PufPuf93 » 17 Oct 2017 00:58 wrote:stickdog99 » Mon Oct 16, 2017 5:49 pm wrote:
https://www.trbimg.com/img-59de8deb/tur ... 0/1150x647
Now, how did this fire basically leave nothing behind other than the bushes and trees?
I explained this on the last page. Also explained the burning interior of trees. You do not have very good arguments. There is no need to do "directed energy weapons" for this out come.
The green wood in the trees is of high moisture and there were not the fuel ladders to get fire into the crowns so they remain green and show as green on immediate infrared. Some may well live but many of not most are going to die because of cambium being killed by the heat and the trees being effectively girdled.
The intensity of the fires can be explained and also there was a "perfect storm" of weather and fuels. I can see that arson, even organized arson, could be an issue. I have been surprised that arson is not used more as a tool of terrorism.
stickdog99 » Tue Oct 17, 2017 2:00 am wrote:http://www.mercurynews.com/2017/10/12/california-fires-pge-power-lines-fell-in-winds-that-werent-hurricane-strength/
The heavy winds that downed power lines Sunday night at the start of the deadly wildfires raging across Northern California were far from “hurricane strength,” as PG&E has claimed, according to a review of weather station readings.
However, wind speeds were only about half that level, as the lines started to come down, the weather station records show. At a weather station in north Santa Rosa where the Tubbs fire started, the peak wind gusts at 9:29 p.m. hit 30 mph. An hour later, they were 41 mph.
Click on link to see nice graphic. This was not a "perfectly normal" event, as Dr. Evil would have you believe.
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