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Water Supply Outlook Reports - Montana

Monthly Water Supply Outlook Reports (WSOR) are available by the fifth business day of each month January through June. The report summarizes current conditions related to water supply across Montana including precipitation, snowpack, temperature, streamflow, drought status, and weather outlooks. It also contains the most recent water supply forecasts for the upcoming spring and summer season.

Water Year 2024 - Water Supply Outlook Reports

January 1, 2024
February 1, 2024

Water Year 2023 - Water Supply Outlook Reports

January 1, 2023
February 1, 2023
March 1, 2023
April 1, 2023
May 1, 2023
June 1, 2023

Archived Water Supply Outlook Reports

Montana Water Supply Outlook Reports from 2012 to present are available from the online directory, Montana Field Office Technical Guide.