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 National Water and Climate Center
  

GIS Products

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Water Supply Forecasts

Maps of the 50% exceedance forecasts for the western United States.
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Snow

Maps of snow water equivalent, snow density, and snow depth derived from SNOTEL and manual snow course data.
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Precipitation

Maps of month-to-date and year-to-date precipitation. 

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Temperature

Maps of maximum, minimum, and average temperatures displayed as percentiles, records, anomalies, and more...