Re: Dam failure and flooding
Published on May 13, 2017
Oroville Mercury Register (California)
Oroville spillway: Another round of questions for water leaders working on repairs 05/11/17
_http://www.orovillemr.com/general-news/20170511/oroville-spillway-another-round-of-questions-for-water-leaders-working-on-repairs?source=most_viewed
Snippet:
Oroville Dam - May 13th, 2017 - Update Pictures
https://www.youtube.com/watch?v=n9c3EI3kMgI
Flooding to threaten lives, property in central US through end of May (Video)
AccuWeather meteorologist May 11, 2017, 2:30:23 PM EDT
_http://www.accuweather.com/en/weather-news/extreme-river-flooding-to-threaten-lives-property-in-central-us-through-end-of-may/70001620
May-8-17
3-D Hail Core. Meteorologist Brad Panovich took a 3-D slice of the severe hailstorm that shut down Denver for a time yesterday. A relatively low freezing level meant more of those (giant) 3-4" diameter hailstones were able to survive the trip to the ground, creating a winter-like scene for much of the area.
Source: _http://www.startribune.com/biggest-storms-track-south-of-minnesota-merits-of-flood-insurance-in-a-warming-world/421619853/
1080HD
Published on May 13, 2017
The new release of 30,000 cubic feet per second over the still damaged Oroville Dam spillway, is to drop lake levels enough to last through the dry season so the California Department of Water Resources can begin rebuilding the main spillway.
This in my opinion will be hampered and delayed by unseasonable storms that roll in from the Pacific as the Inter Tropical Convergence Zone shifts due to the intensification of the new mini ice age.
There is a direct correlation for the Sacramento River rising at the beginning of mini ice ages, and overall as our planet transits to 2019 we will experience global crop losses.
Oroville Mercury Register (California)
Oroville spillway: Another round of questions for water leaders working on repairs 05/11/17
_http://www.orovillemr.com/general-news/20170511/oroville-spillway-another-round-of-questions-for-water-leaders-working-on-repairs?source=most_viewed
Snippet:
Ron Stork, senior policy advocate for Friends of the River, said some problems have been on the radar for 20 years.
The emergency spillway was not designed to be safe, Stork said as an example. It was designed for an emergency that was never supposed to happen.
However, DWR said “it was safe up there. It was all solid rock. They told the dam safety regulators that. Both the (Federal Energy Regulatory Commission) and the Division of Safety of Dams bought that story back in 2005 and 2006 when we were raising these issues during the FERC relicenseing process. That story was factually incorrect,” Stork said.
“And when we ask ‘show your work,’ we’re told” there are security issues that must be kept secret, he continued.
“We clearly have a cultural problem with dam safety regulators at DWR failing to recognize real risk,” and failure to provide public transparency, Stork said.
A “conditioning effect” can take place over time, said Robert Bea, who shared perspective from his 63 years in the industry. A former engineer with the U.S. Army Corps of Engineers and UC Berkeley professor, Bea helped found the university’s Center for Catastrophic Risk Management. He recently worked, on his own time, to review what may have gone wrong with the spillway.
Bea concluded there were problems with the spillway at the design phase, which continued on through construction phase, and continued undetected through decades of maintenance and operation.
Part of his conclusions came from three retired DWR staff who he has promised not to name, he told the committee members.
When he looked through inspection reports he saw “cracks that have been painted over,” and broken anchors at the spillway gates, Bea said.
DWR has said the green spots on the dam are naturally occurring. Yet, Bea said there should be more investigation. “In my view, nothing like that is taken as natural until proven natural.”
Oroville Dam - May 13th, 2017 - Update Pictures
https://www.youtube.com/watch?v=n9c3EI3kMgI
Pictures of Oroville Dam, and Spillways. Includes Multiple View Angles. Lots of NEW Pictures of the Dam, Spillways, River, Mountain-Sides, Reservoir, Workers, Equipment,and Much More.
Flooding to threaten lives, property in central US through end of May (Video)
AccuWeather meteorologist May 11, 2017, 2:30:23 PM EDT
_http://www.accuweather.com/en/weather-news/extreme-river-flooding-to-threaten-lives-property-in-central-us-through-end-of-may/70001620
On Saturday, the Mississippi River at St. Louis crested at 41.7 feet, or nearly 12 feet above flood stage. The river is not forecast to fall below flood stage until the upcoming weekend.
“Flooding is occurring or will occur along the Mississippi River from near New Boston, Iowa, to Donaldsville, Louisiana, and along some of its many major tributaries like the White, Missouri, Ohio and Illinois rivers,” AccuWeather Senior Meteorologist Mike LeSeney said.
May-8-17
3-D Hail Core. Meteorologist Brad Panovich took a 3-D slice of the severe hailstorm that shut down Denver for a time yesterday. A relatively low freezing level meant more of those (giant) 3-4" diameter hailstones were able to survive the trip to the ground, creating a winter-like scene for much of the area.
Source: _http://www.startribune.com/biggest-storms-track-south-of-minnesota-merits-of-flood-insurance-in-a-warming-world/421619853/
1080HD
GOES-16 captured this 30-second visible imagery of the strong storms that tore through northern Colorado on Monday (May 8, 2017) afternoon. The storms brought more than 2 inches of rain and hail, some of it large, to parts of the state. Hail still covered the ground in parts of the Denver area this morning, more than 12 hours after the storms. More rain is in the forecast for the area today (May 9) and tomorrow (May 10), and there is a potential for more strong storms this afternoon, especially south and east of Denver.
This imagery was created with the Advanced Baseline Imager's Band 2, or red-visible band, which capitalizes on the imager's enhanced resolution to offer meteorologists a closer, more detailed look at the structure of the clouds and the near-storm environment. For example, note the "overshooting" tops and rough texture of the tops of the storm clouds, which is indicative of strong vertical updrafts -- a characteristic of intense storms.
The above reference to "30-second" imagery refers to the frequency with which GOES-16's Advanced Baseline Imager captured an image of the storms. 30-second imagery is produced when both of ABI's regional scan modes, each of which can produce an image every minute, are focused on the same area and then programmed to capture an image 30-seconds apart from one another.
This animation appears courtesy of our partners at the Cooperative Institute for Research in the Atmosphere (CIRA). To see more animations, visit their website at goo.gl/faexRt
Note: GOES-16 data are currently experimental and under-going testing and hence should not be used operationally.