Much needed rain will finally return to California and will likely end a month-plus dry streak in San Francisco and Sacramento. Dry conditions have prevailed across most of California since late January due to the upper-level pattern.  A strong area of high pressure aloft near California has pushed the jet stream and storm track northward into the Pacific Northwest.

The persistence of this pattern has resulted in drought conditions during the wet season. Nearly 70% of the Golden State is abnormally dry, and about a third of the state is in moderate drought, according to the latest report from the U.S. Drought Monitor.