Forecasted storms expected in the Feather River basin this weekend may require using Lake Oroville’s flood control outlet spillway (also known as the main spillway) this week or next.
After last year’s spillway incident, the Department created the 2017/18 Lake Oroville Winter Operations Plan to ensure public safety in the event of major storm events. This plan triggers more aggressive outflow from Hyatt Powerplant and potential use of the main spillway should the reservoir’s elevation reach 830 feet during the month of April. The current forecasts show the potential for inflows to raise the reservoir to near the 830-foot trigger elevation by the middle of next week. Currently, the lake elevation is 794 feet.
In anticipation of the incoming weather, DWR is increasing outflows from Hyatt Powerplant. Outflows were increased from 9,500 cfs to 11,500 cfs at noon, and will be increased to 13,000 cfs at 1PM. Feather River flows are expected to increase as outflows increase. These numbers are approximations.
dohboi wrote:The California Department of Water Resources release a statement that they may use the main spillway at Oroville
https://www.water.ca.gov/News/News-Rele ... te-April-4.Forecasted storms expected in the Feather River basin this weekend may require using Lake Oroville’s flood control outlet spillway (also known as the main spillway) this week or next.
After last year’s spillway incident, the Department created the 2017/18 Lake Oroville Winter Operations Plan to ensure public safety in the event of major storm events. This plan triggers more aggressive outflow from Hyatt Powerplant and potential use of the main spillway should the reservoir’s elevation reach 830 feet during the month of April. The current forecasts show the potential for inflows to raise the reservoir to near the 830-foot trigger elevation by the middle of next week. Currently, the lake elevation is 794 feet.
In anticipation of the incoming weather, DWR is increasing outflows from Hyatt Powerplant. Outflows were increased from 9,500 cfs to 11,500 cfs at noon, and will be increased to 13,000 cfs at 1PM. Feather River flows are expected to increase as outflows increase. These numbers are approximations.
They are not expecting problems; this is not their emergency spillway that is earthlined. It is the one they had to repair the concrete lining...what could possibly go wrong?![]()
(Thanks to jmshelton at asif for this)
Or just willing to constantly put the worst possible spin on things to imply doom
Worse than the 1906 earthquake. Worse than eight Hurricane Katrinas. Worse than every wildfire in California history, combined. The world’s first trillion-dollar natural disaster.
A wintertime megaflood in California could turn out to be the worst natural disaster in U.S. history by far, and we are making it much more likely, according to an alarming study published this week in Nature Climate Change.
The odds are good that such a flood will happen in the next 40 years, the study says. By the end of the century, it’s a near certainty. (And then another one hits, and another — three such storms are possible by 2100). By juicing the atmosphere, extreme West Coast rainstorms will happen at five times their historical rate, if humanity continues on roughly a business-as-usual path, the new research predicts. ...
dohboi wrote:“FIVE YEARS of rain in ONE DAY. This is not normal.”
“Mekunu is about 12 hours from a direct hit on Salalah, Oman -- a city of 200,000 people.
Sustained winds currently estimated at 115mph (185kph). About 15 inches (400mm) of total rainfall expected -- five years' worth.”
https://twitter.com/ericholthaus/status ... 8077046784
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