Following an epic winter that has grown the California snowpack to historic levels, the Los Angeles Department of Water and Power is preparing for an equally epic runoff season. With the Eastern Sierra snowpack at 296% of normal, the municipally owned water agency for the City of Los Angeles is anticipating runoff to be 225% of normal and is implementing safety measures.
Mark Pestrella is the director of L.A. County Public Works, which oversees 27 spreading grounds and 14 dams that both hold most of our local water supply as well as prevent massive flooding in the cities below.
Pestrella said he isn’t losing sleep over a megaflood. His biggest concern? The increasing severity of smaller, but intense storms — like many we experienced this winter.
The Lake Tahoe region has been put on flood watch this coming weekend as unseasonably warm weather melts the Sierra Nevada’s almighty snowpack.
“Creeks and streams will be running high fast,” the National Weather Service warned. “Low-water crossings may be flooded.”
Like our changing climate and its many impacts on our communities, economy and environment; like the collapse of critical infrastructure; like the humanitarian homelessness crisis on our streets and the housing shortage driving it; like so many other slow-motion disasters that have befallen us, the warning signs have been unmistakably clear.
After weeks of uncertainty, forecasters say an incoming California heat wave will trigger rapid snowmelt on the slopes of the Sierra Nevada and cause more flooding in portions of the San Joaquin and Owens valleys this week.
Temperatures in Central California are forecast to climb into the high 80s and mid-90s beginning Wednesday and into the weekend, with the potential for some areas to approach daily records.
A large release of water from Lake Powell began Monday morning. It’s water that will eventually end up in Lake Mead near Las Vegas after a two-day journey through the Grand Canyon where it will help restore sandbars and beaches while moving sediment downriver.
El Niño is likely next winter and that could play an important role in the weather in parts of storm-weary California and the West.
But there are some important caveats and stubborn myths about this that also need to be addressed.
When rain storms pummel Sacramento, a city surrounded by levees, crews work all hours of the night to prevent flooding.
They monitor, control and maintain the city’s more than 100 stormwater lift stations, which residents depend on to pump water into creeks, canals, or the Sacramento or American Rivers.
After its first committee hearing, Assembly Bill 1337 was amended last week, which could be the opening salvo of a monumental political and legal war over who controls access to water in California – an issue that stretches back to the state’s founding in 1850.
Ron Caetano is packed and ready to go. His family photos and valuables are in the trailer and he’s put food in carry totes. He moved the rabbits and chickens and their automatic feeders to higher ground.
