Скачать или смотреть California Snowpack Reaches 250%, Reservoirs Begin To Fill From Recent Storms

The first snowpack and reservoir measurements following the latest record-setting atmospheric river events in California have been found to be much higher than expected, with many drought ravaged areas across the state now either approaching normalcy or even going above pre-drought averages.

Before the storms came in late last year, California was still in severe drought statewide. Reservoirs across the state had been at under 30% capacity, with snowpack levels expected to top out at now more than around 160%, before dropping significantly down to under 50% by April 1st like previous years. Weather experts predicted that while the drought would be eased somewhat in the Spring, that California would still be at mega-drought levels.

However, those projections have been radically altered by the near constant “bomb cyclone” storms that have struck California in the last three weeks. On January 5th, snowpack levels had already reached a 40-year high with 174% of the average in the Sierra Nevadas, with reservoir levels slowly beginning to rise above the 30% capacity marks following dry land being fully recharged with water.

On January 11th, snowpack had reached over 200%, while reservoirs across the state all began going above the 38% average being reported across the state last year, including the Don Pedro Reservoir being at 97% it’s normal January level, with Shasta coming in at 67%, Oroville at 85%, New Melones at 59%, and Trinity at 42%. Southern California reservoirs also saw large upticks as well.

On Tuesday, the California Department of Water Resources (DWR) announced that snowpack levels have reached nearly 250%. Specifically, the Northern Sierra region is currently at 209% of snowpack, with the Central Sierra/Tahoe region coming in at 246%, and the Southern Sierra region, which largely feeds the Central Valley and Southern areas of the state, at 288%.

Some areas, such as the UC Berkeley Central Sierra Snow Lab, reported 49.6 inches of snow falling between last Friday and Monday, contributed to the record levels of snowpack.

Additionally, reservoirs across the state have been filling up rapidly during the last week. Four reservoirs in Santa Clara County alone topped out at over 100% capacity, with others, while still under capacity, are quickly approaching average January levels. Shasta currently sits at 80% normal January capacity, with Oroville currently at 99%.

Others include Don Pedro at 103%, Camanche at 122%, and Folsom being at 110%. In Southern California, reservoir levels are also better than expected, with Diamond Valley at 84% and LA County alone catching 33 billion gallons of rainwater for later public use – enough to supply over 800,000 people with water for a whole year.