Monthly Water Shortage Outlook

This table provides forecasted monthly (and annual) potable water shortage (or surplus) with and without shortage actions for a dry year. The Annual Water Supply and Demand Assessment (AWSDA) reports this data. All data reported through the AWSDA are available on the DWR’s Water Use Efficiency (WUE) portal (https://wuedata.water.ca.gov/wsda_export). The most recent AWSDA guidance is available here: https://wuedata.water.ca.gov/public/public_resources/3517484366/AWSDA-Final-Guidance-4-2022.pdf. See pages 30-35 for information about the data elements in the monthly_water_shortage_outlook table. Methodology guidance is included in this report, though it is not implemented consistently across urban water suppliers. *Data use limitations:* The primary function of the AWSDA is to motivate planning processes for water shortages. These data represent forecasts specific to the urban supplier and a snapshot in time based on the conditions when the supplier completed the plan. These data are expected to change as conditions change and water shortage plans are updated. These data can only be used within the year they are reported for, though if the forecasted water year is not dry, they are unreliable.