California Snow Totals Are Way Down This Year, After Drought Breaking Snowfall in 2017.

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9 Feb 2018 5:42 PM
But a picture of the snowpack last year, versus this year, really tells the story.  The image on the left shows heavy snowpack on the Sierra Nevada on January 28th, 2017.  The image on the right shows the lack of snowpack on the same area as of February 8th, 2018.  The average snow depth across the Sierra Nevada is currently just 3.4 inches.  Last year, at the same time, the average snow depth was 46.0 inches. So far this winter, most of the storm tracks have been starting in the northwest, and tracking to the southeast.  These tracks have kept the eastern U.S. colder and wetter than average.  However, much of the southwest has missed out on moisture from these storms, staying warmer and drier than usual.  A persistent ridge of high pressure off the California coast, has been blocking the storms from the Pacific. However, it looks like early next week, high pressure will be replaced by low pressure.  This will funnel in Pacific moisture, and bring some rain and snow chances for the southwest.       Water levels in California's reservoirs are still fairly high, so there are no immediate concerns.  However, a dry winter means less spring and summer snow-melt, which helps keep reservoir levels high during the dry summer months.  Hopefully low pressure systems will become more common for the remainder of winter, and the overall pattern will change from dry to wet.  California and much of the southwest would benefit greatly from more rain and more mountain snow. For WeatherNation:  Meteorologist Matt Monroe
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