February 2026 Washington Water Supply Outlook Report

The winters of 2004-2005 and 2014-2015 were the lowest and 2nd lowest respectively for the same period. After a wetter than normal December, January was drier and warmer than normal, resulting in a decrease in statewide SWE as a percent of normal. With 2 months left in the typical snow accumulation season, there is hope conditions can improve before the statewide median peak SWE (peak snowpack) date of April 5. Snowmelt in spring and early summer provide much of the water supply statewide for many different users and purposes. Forecasts of expected runoff assist water users and managers plan for conditions they may expect during peak summer usage.

As of February 1, overall lack of snow in the mountains has heavily influenced Water Supply Forecasts (WSFs). Except for basins in the Skagit, Methow, Okanogan, and Lake Chelan drainages, a snow drought persists through most basins in Washington where SWE is well below normal (less than 50% of normal). If the current snowpack deficit persists through spring, most basins in Washington can expect to see below normal runoff. WSFs for Feb. 1 (based on 50%-exceedance predictions) are generally slightly below normal to below normal except for the basins mentioned above. With only half of the snow accumulation season still ahead, the Feb. 1 forecasts are beginning to show more certainty in the relationship between Feb. 1 conditions and late spring to early summer streamflow. Conditions could be offset by favorable February and March snow accumulation.

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To access reports dating back to 2010, click here.