Regulators say California snowpack has deepened after 4 years of punishing drought

California water managers expect good news when they trek into the Sierra Nevada for the winter's first manual snowpack survey.

They say the survey on Wednesday follows an electronic measurement last week that put the water content of the snowpack at 112 percent of normal for this time of year.

More snow has fallen since then, bringing the level on Tuesday to nearly 120 percent in the Central Sierra, which includes Lake Tahoe.

Still, state water managers say it's too early to declare an end to four years of punishing drought.

They say they'll feel more confident if the April 1 snowpack is 150 percent of normal and depleted reservoirs reach normal levels.