Many no longer recall the Great Midwest Flood despite its record-breaking precipitation, flooding and $13 billion price tag. Sure, 1993 seems like a long time ago, but I believe the reason the flood has left most people’s memory is because, over the last 25 years, the nation has experienced one devastating, record-breaking flood after another. Our memories are diluted by the frequency of such events.
Although it might sound absurd to those who still recall five years of withering drought and mandatory water restrictions, researchers and engineers warn that California may be due for rain of biblical proportions — or what experts call an ARkStorm. … In heavily populated areas of the Los Angeles Basin, epic runoff from the San Gabriel Mountains could rapidly overwhelm a flood control dam on the San Gabriel river and unleash floodwaters from Pico Rivera to Long Beach, says a recent analysis by the U.S. Army Corps of Engineers.
Thursday, the National Oceanic and Atmospheric Administration announced that El Niño — the periodic warming of the tropical Pacific Ocean, with weather consequences worldwide — has officially arrived. El Niño typically peaks between October and March, so it’s pretty late in the season for a new one to form. This year’s El Niño is expected to remain relatively weak, but that doesn’t mean this one won’t be felt — in fact, its cascading consequences already in motion.
The interrelated nature of water issues has given rise to a management approach that integrates flood control, environmental water, and water supply. The Yuba Water Agency manages its watershed in this kind of coordinated manner. We talked to Curt Aikens, the agency’s general manager, about the lessons they’ve learned from this “integrated management” approach.
The wet weather broke a daily rainfall record in Sacramento, with 1.6 inches of rain recorded at the Sacramento Executive Airport over 24 hours. But the state’s network of flood-control dams and levees appeared to handle the deluge without major problems. The National Weather Service issued a flood warning Wednesday morning for the Sacramento Valley, and it was expected to remain in place until 6 p.m. Thursday as heavy and moderate rainfall was forecast to continue through Thursday.
A powerful “atmospheric river” storm is expected to pummel Northern California starting Tuesday night and deliver heavy rain, gusty winds, downed trees, power outages and rough driving conditions Wednesday and Thursday. … The storm should bring up to 5 feet of new snow in the Sierra Nevada, forecasters said. The National Weather Service announced flash-flood and high-wind warnings for the Bay Area, along with Santa Cruz and Monterey counties.
California’s San Joaquin River Delta is in danger of being overrun by voracious beagle-sized rodents. The state has a plan to deal with them, but it’s going to take a lot of time and money. Nutria, a large South American rodent, have become an invasive species in several states, including Louisiana, Maryland and Oregon.
In 70 years, San Francisco as we know it could look drastically different. Gentrification, development and the other forces of urban change we fret about may be mere trifles compared to the drastic effects of climate change, including the rise of sea levels and erosion, scientists say. By 2100, rising sea levels could displace more than 480,000 people along the California coast and result in property losses upwards of $100 billion if no preventative measures are taken, according to a 2009 study by the California Climate Change Center.
With each storm, the rain-swollen Russian River is washing away more of a steep, muddy bank perilously close to River Road near Geyserville, prompting Sonoma County supervisors to approve Tuesday an emergency repair estimated at $250,000. Should the river wipe out the road, about 400 residents of Alexander Valley, a famed wine grape growing area, would be cut off from a connection to Highway 128 leading southwest to Geyserville and Highway 101.
They are giant conveyor belts of water in the sky, moisture-rich storms that roll in from the Pacific Ocean a few times a year to fill California’s reservoirs… But distinguishing a good atmospheric river storm — a modest one that can help end a drought — from a catastrophic one that can kill people has been elusive. On Tuesday, that changed, as scientists published the first-ever scale to rank the strength and impact of incoming atmospheric rivers, similar to the way hurricanes are classified.
If 200-year flood protection isn’t secured — or at least a financial and implementation plan in place by July 1, 2016 — development of the Great Wolf Resort and family entertainment zone, The Trails at Manteca, and other residential projects in southwest Manteca won’t take place.
“A major roadblock to completion of critical levee repairs in Sacramento’s Natomas basin was cleared Tuesday when President Barack Obama signed the Water Resources Reform and Development Act into law.”
“In Congress, seniority still matters. Although lawmakers can no longer earmark funds for home-state projects, Sen. Barbara Boxer (D-Calif.) has written into a massive water bill a measure that promises to bring more money to the ports of Los Angeles and Long Beach.”
“The House passed the closest thing so far this year to an infrastructure bill – a $12 billion-plus bipartisan measure authorizing 34 water projects, ranging from flood protection in California and North Dakota to deepening the Port of Savannah and widening a Texas-Louisiana waterway that services the oil industry.”