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gilliam
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This U.S. Drought Monitor week saw a very active pattern in parts of the western U.S. as a series of Pacific storms brought significant rain to coastal areas of central and northern California, Oregon, and Washington while heavy snows blanketed higher elevations of the Sierra, Cascades, and northern Rockies. Continued snowfall this week across the Sierra is making a positive impact on the overall drought situation where the snowpack statewide is 176% of normal according to the California Cooperative Snow Surveys. Most of the major reservoirs in California are currently above historical averages. Some lingering hydrologic impacts (low reservoir levels and below-normal groundwater levels) are still present in portions of the central Coast, southern California, San Joaquin Valley, and the western foothills of the Sierra despite abundant precipitation during the past several months. Elsewhere in the West, mountain snowpack levels are normal to above normal across the Great Basin, southern Cascades, Wasatch, as well as central and southern Rockies. In the southern Plains and portions of the South, overall dry conditions have persisted, especially across Arkansas and Oklahoma. During the past week, temperatures were above normal across most of the conterminous U.S. with the exception of the northern Plains and much of the Pacific Northwest where temperatures were 5 to 20 degrees below normal with the greatest departures observed across Montana.
droughtmonitor.unl.edu/
droughtmonitor.unl.edu/