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 Post subject: The Mudslide Thread - Debris Flows,Floods and Slope Failure
PostPosted: Sat Jan 13, 2018 3:20 am 
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Dave's Run
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After looking at the longer range GFS I'm certain this will have more to come.

Interesting article from the LA Times how people underestimated the threat from the fire erosion.

Image

The Montecito mudslides killed at least 18 people, with five still missing, making it the deadliest flooding event in California in decades. It's likely to spark rethinking about how government agencies handle evacuations and warnings about the coming threat. Many of those killed lived in areas that were under only voluntary evacuation orders because officials didn't believe the mudslides would travel so far south toward the ocean.

"They did give people notice," Schwartz said. "But when people hear 'flash flood' they think, 'water. Maybe we'll get wet.' They are not thinking of landslides.

"I think nobody predicted the severity. Well, they did," he added. "We were just cavalier about it."

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 Post subject: Re: The Mudslide Thread - Debris Flows,Floods and Slope Failure
PostPosted: Sat Jan 13, 2018 10:11 am 
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Incident report: http://www.countyofsb.org/asset.c/3708

Single Family Residences Destroyed: 65
Single Family Residences Damaged: 462
Single Family Residences Threatened: 3000

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 Post subject: Re: The Mudslide Thread - Debris Flows,Floods and Slope Failure
PostPosted: Sat Jan 13, 2018 10:23 am 
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Location: South facing foothills of the Santa Susanas
...and with 13% of employees at the hospital living in Oxnard/Ventura; one of the problems of 101 being closed indifinetly.
I heard Island Packers and some other companies were helping with commute issues.

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 Post subject: Re: The Mudslide Thread - Debris Flows,Floods and Slope Failure
PostPosted: Sat Jan 13, 2018 10:31 am 
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Location: South facing foothills of the Santa Susanas
The latest GFS does not bring this much moisture into SB/Ventura anymore. This basically 1/24 - 29. Current run is at .69"
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 Post subject: Re: The Mudslide Thread - Debris Flows,Floods and Slope Failure
PostPosted: Mon Jan 15, 2018 2:08 pm 
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USGS post fire landslide and debris flow map for all the fire areas.
https://landslides.usgs.gov/hazards/pos ... jectid=178

And by golly, they were correct.

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 Post subject: Re: The Mudslide Thread - Debris Flows,Floods and Slope Failure
PostPosted: Mon Jan 15, 2018 2:21 pm 
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Washington Post
After intense rains triggered deadly mudslides in the coastal California city of Montecito that swept away buildings and inundated roads, DigitalGlobe, a satellite imagery company, released images showing the extent of the destruction.

https://www.washingtonpost.com/graphics ... d77fa769db

These before and afters of the waterways are incredible. It reminds me very much of the aftermath of the Station Fire on the Arroyo Seco drainage by JPL and how scoured out the place became.

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 Post subject: Re: The Mudslide Thread - Debris Flows,Floods and Slope Failure
PostPosted: Sun Jan 28, 2018 1:45 pm 
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This has been briefly shown on news but in this article is that full 3 minute dashcam video of the patrol car being swept along in the mudflow. At the end you can see it catching up to them again. This is why we dont drive thru water in the dark kids.

http://www.keyt.com/news/santa-barbara- ... /691697438

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 Post subject: Re: The Mudslide Thread - Debris Flows,Floods and Slope Failure
PostPosted: Fri Apr 13, 2018 2:20 pm 
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This is still spectacular and it was 10 ft below that super flood in 1997! 6 minute video of the recent Yosemite flooding from the AR event.

https://www.facebook.com/YosemiteNPS/vi ... =2&theater

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